Elementary Multiperspective Material Ontology (EMMO)
EMMO is a multidisciplinary effort to develop a standard representational framework (the ontology) based on current materials modelling knowledge, including physical sciences, analytical philosophy and information and communication technologies.
It provides the connection between the physical world, materials characterisation world and materials modelling world.
EMMO is released under a Creative Commons license Attribution 4.0 International (CC BY 4.0).
EMMO
F. A. Zaccarini, C. Masolo, E. Ghedini, and S. Borgo. From Causation (and Parthood) to Time: The Case of EMMO (2023) doi: 10.3233/FAIA231120
2024-03
2018-05-03
https://creativecommons.org/licenses/by/4.0/legalcode
2024-03
CWA 17815, Materials characterisation - Terminology, metadata and classification. Led by EMMC. 2017. https://www.cencenelec.eu/media/CEN-CENELEC/CWAs/ICT/cwa17815.pdf
European Commission, Directorate-General for Research and Innovation, Baas, A., What makes a material function? - Let me compute the ways - Modelling in H2020 LEIT-NMBP programme materials and nanotechnology projects -Sixth version - Short version, Baas, A.(editor), Publications Office of the European Union, 2017, https://data.europa.eu/doi/10.2777/404734
Elementary Multiperspective Material Ontology (EMMO)
10.5281/zenodo.6528495
First release candidate for v1.0.0 of the top-level ontology.
emmo
https://w3id.org/emmo
The EMMO should be reasoned in order to visualize all inferences and class hierarchy in Protege (ctrl+R hotkey). It is tested with both the HermiT (preferred) and HermiT reasoners.
1.0.0-beta7
1.0.0-rc1
https://github.com/emmo-repo/EMMO/raw/master/doc/emmo-logo.png
emmo@emmc.eu
hasChemicalSymbol
The chemical symbol of an atomic element.
hasChemicalSymbol
The chemical symbol of an atomic element.
hasJunctionPart
The part is connected with the rest item or members with hasNext (or its inverse) and hasContact relations only.
hasSpatioTemporalPart
hasJunctionPart
The part is connected with the rest item or members with hasNext (or its inverse) and hasContact relations only.
hasNonTemporalPart
The part is not connected with the rest item or members with hasNext relation (or its inverse).
hasNonTemporalPart
The part is not connected with the rest item or members with hasNext relation (or its inverse).
hasSpatialPart
A proper part of a whole, whose parts always cover the full temporal extension of the whole within a spatial interval.
In EMMO FOL this is a defined property. In OWL temporal relations are primitive.
hasSpatialPart
A proper part of a whole, whose parts always cover the full temporal extension of the whole within a spatial interval.
In EMMO FOL this is a defined property. In OWL temporal relations are primitive.
hasMultipleMembers
A sub collection realtion where the proper part is fully encompasses some of the members of the collection.
hasMultipleMembers
A sub collection realtion where the proper part is fully encompasses some of the members of the collection.
hasMembers
The relation between individuals representing a collection and one or more of its members.
A maximal part is a proper part that is not connected with the rest of the whole.
A proper part which is not connected with the rest of the whole.
hasMaximalPart
hasMembers
A proper part which is not connected with the rest of the whole.
The relation between individuals representing a collection and one or more of its members.
A maximal part is a proper part that is not connected with the rest of the whole.
contributesTo
contributesTo
properOverlaps
The relation between two entities that overlaps and neither of both is part of the other.
properOverlaps
The relation between two entities that overlaps and neither of both is part of the other.
hasMeasurementUnit
A conventional semiotic relation that relates a physical quantity to its unit.
Length hasUnit only LengthUnit
hasMeasurementUnit
hasDatum
Relates a dataset to its datum.
hasDatum
Relates a dataset to its datum.
hasPart
All other mereology relations can be defined in FOL using hasPart as primitive.
The primitive relation that express the concept of an entity being part of another one.
hasPart
The primitive relation that express the concept of an entity being part of another one.
All other mereology relations can be defined in FOL using hasPart as primitive.
overcrosses
The relation between an entity that overlaps another without being its part.
overcrosses
The relation between an entity that overlaps another without being its part.
overlaps
The relation between two individuals representing entities that share at least one of their parts.
overlaps
The relation between two individuals representing entities that share at least one of their parts.
mereological
The EMMO adheres to Atomistic General Extensional Mereology (AGEM).
The superclass of all mereological EMMO relations.
mereological
The superclass of all mereological EMMO relations.
The EMMO adheres to Atomistic General Extensional Mereology (AGEM).
hasDistinctPart
DP(x, y) ≡ PP(x, y) ∧ ∃φ[φ(x) ↔ ¬φ(y)]
The superproperty of all object property relations between an entity and one of its proper parts that belongs to different taxonomical branch.
A molecule is a distinct part of a fluid.
hasDistinctPart
DP(x, y) ≡ PP(x, y) ∧ ∃φ[φ(x) ↔ ¬φ(y)]
The superproperty of all object property relations between an entity and one of its proper parts that belongs to different taxonomical branch.
isPartOf
The inverse relation of hasPart.
isPartOf
The inverse relation of hasPart.
hasParticipant
Participation is a parthood relation: you must be part of the process to contribute to it. A participant whose 4D extension is totally contained within the process.
Participation is not under direct parthood since a process is not strictly related to reductionism, but it's a way to categorize temporal regions by the interpreters.
The relation between a process and an object participating to it, i.e. that is relevant to the process itself.
hasParticipant
The relation between a process and an object participating to it, i.e. that is relevant to the process itself.
hasHolisticSpatialPart
hasHolisticSpatialPart
interactsWith
The relation between two causally reachable entities through a path of contacts relations (i.e. representing physical interactions).
alongsideOf
I'm interacting with another tennis player through a ball. Or, two people in a webconference are interacting using a mediator which is the network signal.
interactsWith
The relation between two causally reachable entities through a path of contacts relations (i.e. representing physical interactions).
isSpatiallyRelatedWith
A relation jointly covered by Contact and InteractWith relations, which are mutually exclusive.
The relation between entities that express a mutual causation.
isSpatiallyRelatedWith
A relation jointly covered by Contact and InteractWith relations, which are mutually exclusive.
The relation between entities that express a mutual causation.
isIndirectCauseOf
A causal relation between the effected and the causing entities with intermediaries.
An indirect cause is a relation between two entities that is mediated by a intermediate entity. In other words, there are no quantum parts of the causing entity that are direct cause of quantum parts of the caused entity.
isIndirectCauseOf
An indirect cause is a relation between two entities that is mediated by a intermediate entity. In other words, there are no quantum parts of the causing entity that are direct cause of quantum parts of the caused entity.
A causal relation between the effected and the causing entities with intermediaries.
causal
Causality in the EMMO is intended as physical causation and not counter-factual. Meaning that causality is an expression of actual physical interactions, and not of a counterfactual depence such as “I didn't water the flowers, hence, I'm the cause of their death”.
Causality is the fundamental concept describing how entities affect each other, and occurs before time and space relations.
Embracing a strong reductionistic view, causality originates at quantum entities level.
The superclass of all causal EMMO relations.
causal
Causality is the fundamental concept describing how entities affect each other, and occurs before time and space relations.
Embracing a strong reductionistic view, causality originates at quantum entities level.
The superclass of all causal EMMO relations.
Causality in the EMMO is intended as physical causation and not counter-factual. Meaning that causality is an expression of actual physical interactions, and not of a counterfactual depence such as “I didn't water the flowers, hence, I'm the cause of their death”.
Each pair of entities is either in isCauseOf or isNotCauseOf relation. The two are mutually exclusive.
EMMORelation
The class for all relations used by the EMMO.
EMMORelation
The class for all relations used by the EMMO.
holisticOverlaps
A relation between two holistic wholes that properly overlap, sharing one of their holistic parts.
This relation is about two wholes that overlap, and whose intersection is an holistic part of both.
A man and the process of building a house.
The man is a whole that possesses an holistic temporal part which is an interval of six monts and represents a working period in his lifetime.
The process of building a house is a whole that possesses an holistic spatial part which is a builder.
The working period of the man and the builder participating the building process are the same individual, belonging both to a man lifetime and to a building holistic views.
In this sense, the man and the building process overcrosses. and the overlapping individual is represented differently in both holistic views.
holisticOverlaps
A relation between two holistic wholes that properly overlap, sharing one of their holistic parts.
This relation is about two wholes that overlap, and whose intersection is an holistic part of both.
qualifiedOverlaps
qualifiedOverlaps
hasPortion
The relation between a object whole and its spatial part of the same type.
A volume of 1 cc of milk within a 1 litre can be considered still milk as a whole. If you scale down to a cluster of molecules, than the milk cannot be considered a fluid no more (and then no more a milk).
hasPortion
The relation between a object whole and its spatial part of the same type.
hasRedundantPart
RP(x, y) ≡ PP(x, y) ∧ ∃φ(φ(x) ∧ φ(y))
The superproperty of the all object property relations between a whole and its mereological parts of the same type.
A volume of water has redundand parts other volumes of water. All this volumes have holistic parts some water molecules.
hasRedundantPart
RP(x, y) ≡ PP(x, y) ∧ ∃φ(φ(x) ∧ φ(y))
The superproperty of the all object property relations between a whole and its mereological parts of the same type.
hasConvention
A semiotic relation that connects a declared semiotic object to a conventional sign in a declaration process.
hasConvention
A semiotic relation that connects a declared semiotic object to a conventional sign in a declaration process.
hasTask
hasTask
hasSubProcess
The relation between a process and one of its process parts.
hasSubProcess
The relation between a process and one of its process parts.
hasHolisticPart
The relation between the whole and a proper part of the whole that scale down to the point which it lose the characteristics of the whole and become something else.
An holistic part of water fluid is a water molecule.
hasHolisticPart
The relation between the whole and a proper part of the whole that scale down to the point which it lose the characteristics of the whole and become something else.
isDescriptionFor
The inverse relation of hasDescription.
isDescriptionFor
The inverse relation of hasDescription.
hasDescription
A semiotic relation that connects a declared semiotic object to a description in a declaration process.
hasDescription
A semiotic relation that connects a declared semiotic object to a description in a declaration process.
isConventionFor
The inverse relation of hasConvention.
isConventionFor
The inverse relation of hasConvention.
hasCollaborationWith
hasCollaborationWith
hasMetricPrefix
Relates a prefixed unit to its metric prefix part.
hasMetricPrefix
isSignFor
The inverse relation of hasSign.
isSignFor
The inverse relation of hasSign.
isCauseOf
Each pair of causally connected entities is either in isDirectCauseOf or isIndirectCauseOf relation. The two are mutually exclusive.
The relation between an individuals x and y, that holds if and only if:
a) y having a part that is causing an effect on a part of x
b) y and x are non-overlapping
We say that an entity causes another if there is a quantum part of the first that is in causal relation with a quantum parts of the second.
An entity cannot cause itself (causal loops are forbidden) or a part of itself. For this reasons causality between entities excludes reflexivity and prevents them to overlap.
John yesterday is the cause of John today, is an example of temporal-like causality. The desk supporting my laptop is a space-like causality.
isCauseOf
We say that an entity causes another if there is a quantum part of the first that is in causal relation with a quantum parts of the second.
An entity cannot cause itself (causal loops are forbidden) or a part of itself. For this reasons causality between entities excludes reflexivity and prevents them to overlap.
The relation between an individuals x and y, that holds if and only if:
a) y having a part that is causing an effect on a part of x
b) y and x are non-overlapping
Each pair of causally connected entities is either in isDirectCauseOf or isIndirectCauseOf relation. The two are mutually exclusive.
It applies to both quantums and macro-entities (entities made of more than one quantum). It is admissible for two entities to be one the cause of the other, excepts when they are both quantums.
The OWL 2 DL version of the EMMO introduces this object property as primitive causal relation. It refers to the macro causality relation mC(x,y), defined in the EMMO FOL version. While the EMMO FOL introduces the quantum causality relation C(x,y) as primitive, the OWL 2 DL version substantially simplifies the theory, neglecting these lower level relations that are well above DL expressivity.
hasDimension
A semiotic relation that relates a datum to its dimension.
hasDimension
A semiotic relation that relates a datum to its dimension.
hasProperty
A semiotic relation that connects a semiotic object to a property in a declaration process.
hasProperty
A semiotic relation that connects a semiotic object to a property in a declaration process.
isRemovedFrom
isRemovedFrom
hasStage
hasStage
hasHolisticTemporalPart
hasHolisticTemporalPart
isInputOf
isInputOf
hasInput
The input of a process.
hasInput
The input of a process.
hasSign
A relation that connects the semiotic object to the sign in a semiotic process.
hasSign
A relation that connects the semiotic object to the sign in a semiotic process.
hasPiece
A non-maximal part is a proper part that is connected with the rest of the whole.
The relation between two individuals representing an entity and a non-maximal proper part, meaning the the latter is connected with the rest of the whole.
hasNotMaximalPart
hasPiece
The relation between two individuals representing an entity and a non-maximal proper part, meaning the the latter is connected with the rest of the whole.
A non-maximal part is a proper part that is connected with the rest of the whole.
hasCognised
A semiotic relation connecting a recognising interpreter to the "cognised" semiotic object in a cognition process.
hasCognised
A semiotic relation connecting a recognising interpreter to the "cognised" semiotic object in a cognition process.
hasReferent
A relation that connects the interpreter to the semiotic object in a semiotic process.
hasSemioticObject
hasReferent
A relation that connects the interpreter to the semiotic object in a semiotic process.
semiotical
The generic EMMO semiotical relation.
semiotical
The generic EMMO semiotical relation.
hasDeducer
A semiotic relation connecting an index sign to the interpreter (deducer) in a deduction process.
hasDeducer
A semiotic relation connecting an index sign to the interpreter (deducer) in a deduction process.
hasInterpreter
A relation connecting a sign to the interpreter in a semiotic process.
hasInterpreter
A relation connecting a sign to the interpreter in a semiotic process.
hasTemporalPart
A relation that identify a proper item part of the whole, whose parts always cover the full spatial extension of the whole within a time interval.
A temporal part of an item cannot both cause and be caused by any other proper part of the item.
A temporal part is not constraint to be causally self-connected, i.e. it can be either an item or a collection. We therefore introduce two subproperties in order to distinguish between both cases.
hasTemporalPart
A relation that identify a proper item part of the whole, whose parts always cover the full spatial extension of the whole within a time interval.
A temporal part of an item cannot both cause and be caused by any other proper part of the item.
A temporal part is not constraint to be causally self-connected, i.e. it can be either an item or a collection. We therefore introduce two subproperties in order to distinguish between both cases.
In EMMO FOL this is a defined property. In OWL temporal relations are primitive.
hasSubObject
hasSubObject
hasBehaviour
hasBehaviour
hasStatus
hasStatus
isDirectCauseOf
A causal relation between the causing and the effected entities occurring without intermediaries.
Direct causality is a concept that capture the idea of contact between two entities, given the fact that there are no causal intermediaries between them. It requires that at least a quantum of the causing entity is direct cause of a quantum of the caused entity.
It does not exclude the possibility of indirect causal routes between proper parts of the two entities.
Direct cause is irreflexive.
isDirectCauseOf
Direct causality is a concept that capture the idea of contact between two entities, given the fact that there are no causal intermediaries between them. It requires that at least a quantum of the causing entity is direct cause of a quantum of the caused entity.
It does not exclude the possibility of indirect causal routes between proper parts of the two entities.
A causal relation between the causing and the effected entities occurring without intermediaries.
Direct cause is irreflexive.
Direct cause provides the edges for the transitive restriction of the direct acyclic causal graph whose nodes are the quantum entities.
contacts
A spatial contact between two entities occurs when the two entities are in an interaction relation whose causal structure is a representation of the fundamental interactions between elementary particles (Feynman diagrams).
It means that if two entities are in contact, then there is at least a couple of elementary particles, one part of the first and one part of the second, interacting according to one of the fundamental interactions through virtual particles. This kind of connection is space-like (i.e. interconnecting force carrier particle is offshelf).
Contacts between two entities exclude the possibility of other causal relations that are not included in a fundamental space-like interaction.
An interaction that is the sum of direct causality relations between two entities that are interpretable as fundamental physical interactions.
Spatial contact is symmetric and irreflexive.
hasSpatialnteractionWith
An elementary electron is in contact with another elementary electron in a scattering process.
The laptop is in contact with the desk, since there is a double-directional causality.
contacts
A spatial contact between two entities occurs when the two entities are in an interaction relation whose causal structure is a representation of the fundamental interactions between elementary particles (Feynman diagrams).
It means that if two entities are in contact, then there is at least a couple of elementary particles, one part of the first and one part of the second, interacting according to one of the fundamental interactions through virtual particles. This kind of connection is space-like (i.e. interconnecting force carrier particle is offshelf).
Contacts between two entities exclude the possibility of other causal relations that are not included in a fundamental space-like interaction.
An interaction that is the sum of direct causality relations between two entities that are interpretable as fundamental physical interactions.
Spatial contact is symmetric and irreflexive.
The contact relation is not an ordering relation since is symmetric.
hasDatum
Relates a dataset to its datum.
hasDatum
Relates a dataset to its datum.
hasReferencePart
Relates a quantity to its reference unit through spatial direct parthood.
hasReferencePart
Relates a quantity to its reference unit through spatial direct parthood.
participatesTo
The relation between a process P and an object whole O that overcrosses it. The intersection between P and O is a participant of P.
participatesTo
The relation between a process P and an object whole O that overcrosses it. The intersection between P and O is a participant of P.
hasUnitNonPrefixPart
Relates a prefixed unit to its non-prefixed part.
For example the unit CentiNewtonMetre has prefix "Centi" and non-prefix part "NewtonMetre".
hasUnitNonPrefixPart
Relates a prefixed unit to its non-prefixed part.
isOvercrossedBy
The inverse relation for overcrosses.
isOvercrossedBy
The inverse relation for overcrosses.
isNotCauseOf
x isNotCauseOf y iff not(x isCauseOf y)
isNotCauseOf
x isNotCauseOf y iff not(x isCauseOf y)
hasDeclared
A semiotic relation connecting a declaring interpreter to the "declared" semiotic object in a declaration process.
hasDeclared
A semiotic relation connecting a declaring interpreter to the "declared" semiotic object in a declaration process.
hasDeclarer
A semiotic relation connecting a conventional sign to the interpreter (declarer) in a declaration process.
hasDeclarer
A semiotic relation connecting a conventional sign to the interpreter (declarer) in a declaration process.
hasVariable
hasVariable
hasMetrologicalUncertainty
Assigns a quantifiable uncertainty to an objective property through a well-defined procecure.
Since measurement uncertainty is a subclass of objective property, this relation can also describe the uncertainty of an measurement uncertainty.
hasMetrologicalUncertainty
Assigns a quantifiable uncertainty to an objective property through a well-defined procecure.
Since measurement uncertainty is a subclass of objective property, this relation can also describe the uncertainty of an measurement uncertainty.
hasObjectiveProperty
Relates an object to a quantity describing a quantifiable property of the object obtained via a well-defined procedure.
hasObjectiveProperty
hasInterval
The relation between a process whole and a temporal part of the same type.
hasInterval
The relation between a process whole and a temporal part of the same type.
hasResourceIdentifier
Relates a resource to its identifier.
hasResourceIdentifier
Relates a resource to its identifier.
hasConstituent
The relation between an object and one of its holistic part that contributes to the object under some spatial-based criteria.
hasConstituent
The relation between an object and one of its holistic part that contributes to the object under some spatial-based criteria.
hasAgent
The relation within a process and an agengt participant.
hasAgent
The relation within a process and an agengt participant.
hasIcon
A semiotic relation that connects a recognised semiotic object to an icon in a cognition process.
hasIcon
A semiotic relation that connects a recognised semiotic object to an icon in a cognition process.
hasFragment
The relation between two individuals representing a collection and a non-maximal proper part, meaning the the latter is connected with the rest of the whole.
hasFragment
The relation between two individuals representing a collection and a non-maximal proper part, meaning the the latter is connected with the rest of the whole.
hasCogniser
A semiotic relation connecting an icon to a interpreter (cogniser) in a cognision process.
hasCogniser
A semiotic relation connecting an icon to a interpreter (cogniser) in a cognision process.
hasConstitutiveProcess
hasConstitutiveProcess
isOutputOf
isOutputOf
hasOutput
The outcome of a process.
The partial overlapping is required since the creating process is distinct with the process in which the output is used or consumed.
hasOutput
The outcome of a process.
The partial overlapping is required since the creating process is distinct with the process in which the output is used or consumed.
equalsTo
Equality is here defined following a mereological approach.
The relation between two individuals representing the same entity.
equalsTo
The relation between two individuals representing the same entity.
Equality is here defined following a mereological approach.
hasScalarData
Relates an array to the scalar data of its basic elements.
hasScalarData
Relates an array to the scalar data of its basic elements.
hasConventionalProperty
An object can be represented by a quantity for the fact that it has been recognized to belong to a specific class.
The quantity is selected without an observation aimed to measure its actual value, but by convention.
Assigns a quantity to an object by convention.
An Hydrogen atom has the quantity atomic number Z = 1 as its conventional property.
hasConventionalProperty
Assigns a quantity to an object by convention.
hasIndex
A semiotic relation that connects a deduced semiotic object to an indexin a deduction process.
hasIndex
A semiotic relation that connects a deduced semiotic object to an indexin a deduction process.
isAddedTo
isAddedTo
hasQualifiedPart
hasQualifiedPart
hasOutcome
The relation between a process and the entity that represents how things have turned out.
hasOutcome
The relation between a process and the entity that represents how things have turned out.
hasManufacturedOutput
hasManufacturedOutput
hasProductOutput
hasProductOutput
notOverlaps
The relation between individuals representing non-overlapping entities (i.e. that have no parts in common).
notOverlaps
The relation between individuals representing non-overlapping entities (i.e. that have no parts in common).
disappearsInto
disappearsInto
hasComponent
hasComponent
partakesIn
partakesIn
hasInterpretant
A relation that connects a semiotic object to the interpretant in a semiotic process.
hasInterpretant
A relation that connects a semiotic object to the interpretant in a semiotic process.
distinctOverlaps
distinctOverlaps
hasServiceOutput
hasServiceOutput
hasEndTask
hasEndTask
hasModelledProperty
Assigns a quantity to an object via a well-defined modelling procedure.
hasModelledProperty
Assigns a quantity to an object via a well-defined modelling procedure.
hasBeginTask
hasBeginTask
hasMeasuredProperty
Assigns a quantity to an object via a well-defined measurement procedure.
hasMeasuredProperty
Assigns a quantity to an object via a well-defined measurement procedure.
hasModel
hasModel
hasUnitSymbol
Relates a prefixed unit to its unit symbol part.
hasUnitSymbol
Relates a prefixed unit to its unit symbol part.
hasCharacteriser
hasCharacteriser
affects
affects
hasQuantity
Relates the result of a semiotic process to ont of its optained quantities.
hasQuantity
Relates the result of a semiotic process to ont of its optained quantities.
emergesFrom
emergesFrom
hasCharacterised
hasCharacterised
hasDeduced
A semiotic relation connecting a decucing interpreter to the "deduced" semiotic object in a deduction process.
hasDeduced
A semiotic relation connecting a decucing interpreter to the "deduced" semiotic object in a deduction process.
hasIUPAC2016AtomicMass
This is a convenient shortcut for the measurement process process of the atomic mass reported by IUPAC2016.
The mass of an atomic element according to IUPAC 2016.
hasIUPAC2016AtomicMass
The mass of an atomic element according to IUPAC 2016.
hasSIConversionMultiplier
Conversion formula:
nonsi_coherent_unit = si_coherent_unit * multiplier + offset
Number to multiply a SI coherent unit with when converting to a given non-SI coherent unit.
hasSIConversionMultiplier
Number to multiply a SI coherent unit with when converting to a given non-SI coherent unit.
Conversion formula:
nonsi_coherent_unit = si_coherent_unit * multiplier + offset
hasAtomicNumber
This is a convenient shortcut for the conventional declaration process of assigning an atomic number to an atom subclass.
The atomic number of an atomic element.
hasAtomicNumber
The atomic number of an atomic element.
hasURNValue
hasURNValue
hasURIValue
hasURIValue
hasDimensionString
Relates a SI dimensional unit to a dimension string.
hasDimensionString
Relates a SI dimensional unit to a dimension string.
hasSymbolValue
The owl:dataProperty that provides a serialisation of an EMMO symbol data entity.
hasSymbolValue
The owl:dataProperty that provides a serialisation of an EMMO symbol data entity.
hasSIConversionOffset
Conversion formula:
nonsi_coherent_unit = si_coherent_unit * multiplier + offset
Number to add to a SI coherent unit when converting to a given non-SI coherent unit.
hasSIConversionOffset
Number to add to a SI coherent unit when converting to a given non-SI coherent unit.
Conversion formula:
nonsi_coherent_unit = si_coherent_unit * multiplier + offset
hasNumberValue
The owl:dataProperty that provides a serialisation of an EMMO numerical data entity.
hasNumberValue
The owl:dataProperty that provides a serialisation of an EMMO numerical data entity.
hasDataValue
The owl:dataProperty that provides a serialisation of an EMMO data entity.
This is the superproperty of all data properties used to serialise a fundamental data type in the EMMO Data perspective. An entity can have only one data value expressing its serialisation (e.g. a Real entity cannot have two different real values).
hasDataValue
The owl:dataProperty that provides a serialisation of an EMMO data entity.
This is the superproperty of all data properties used to serialise a fundamental data type in the EMMO Data perspective. An entity can have only one data value expressing its serialisation (e.g. a Real entity cannot have two different real values).
hasPrefixMultiplier
Relates a SI prefixed unit to the multiplication factor corresponding to the prefix.
hasPrefixMultiplier
Relates a SI prefixed unit to the multiplication factor corresponding to the prefix.
hasPrefixSymbol
Relates a SI prefixed unit to the prefix symbol.
true
hasPrefixSymbol
Relates a SI prefixed unit to the prefix symbol.
hasStringValue
The owl:dataProperty that provides a serialisation of an EMMO string data entity.
hasStringValue
The owl:dataProperty that provides a serialisation of an EMMO string data entity.
hasURLValue
hasURLValue
elucidation
An elucidation should address the real world entities using the concepts introduced by the conceptualisation annotation.
Short enlightening explanation aimed to facilitate the user in drawing the connection (interpretation) between a OWL entity and the real world object(s) for which it stands.
elucidation
Short enlightening explanation aimed to facilitate the user in drawing the connection (interpretation) between a OWL entity and the real world object(s) for which it stands.
An elucidation should address the real world entities using the concepts introduced by the conceptualisation annotation.
comment
A comment can be addressed to facilitate interpretation, to suggest possible usage, to clarify the concepts behind each entity with respect to other ontological apporaches.
A text that add some information about the entity.
comment
A text that add some information about the entity.
A comment can be addressed to facilitate interpretation, to suggest possible usage, to clarify the concepts behind each entity with respect to other ontological apporaches.
uneceCommonCode
The UN/CEFACT Recommendation 20 provides three character alphabetic and alphanumeric codes for representing units of measurement for length, area, volume/capacity, mass (weight), time, and other quantities used in international trade. The codes are intended for use in manual and/or automated systems for the exchange of information between participants in international trade.
uneceCommonCode
The UN/CEFACT Recommendation 20 provides three character alphabetic and alphanumeric codes for representing units of measurement for length, area, volume/capacity, mass (weight), time, and other quantities used in international trade. The codes are intended for use in manual and/or automated systems for the exchange of information between participants in international trade.
metrologicalReference
metrologicalReference
omReference
IRI to corresponding concept in the Ontology of units of Measure.
https://enterpriseintegrationlab.github.io/icity/OM/doc/index-en.html
https://github.com/HajoRijgersberg/OM
omReference
IRI to corresponding concept in the Ontology of units of Measure.
unitSymbol
A unit symbol may be a symbolic construct (e.g. km) or a symbol (e.g. m).
The standard symbol for a unit.
unitSymbol
The standard symbol for a unit.
A unit symbol may be a symbolic construct (e.g. km) or a symbol (e.g. m).
ISO14040Reference
ISO14040Reference
contact
A person or organisation acting as a contact point for enquiries about the ontology resource
The annotation should include an email address.
contact
A person or organisation acting as a contact point for enquiries about the ontology resource
The annotation should include an email address.
Will be removed with 1.0.0 release due to duplicated scope of emmo:example with respect to skos:example
true
wikipediaReference
URL to corresponding Wikipedia entry.
https://www.wikipedia.org/
wikipediaReference
URL to corresponding Wikipedia entry.
definition
A definition univocally determines a OWL entity using necessary and sufficient conditions referring to other OWL entities.
Precise and univocal description of an ontological entity in the framework of an axiomatic system.
definition
Precise and univocal description of an ontological entity in the framework of an axiomatic system.
A definition univocally determines a OWL entity using necessary and sufficient conditions referring to other OWL entities.
qudtReference
URL to corresponing entity in QUDT.
http://www.qudt.org/2.1/catalog/qudt-catalog.html
qudtReference
URL to corresponing entity in QUDT.
dbpediaReference
URL to corresponding dpbedia entry.
https://wiki.dbpedia.org/
dbpediaReference
URL to corresponding dpbedia entry.
etymology
Definitions are usually taken from Wiktionary.
The etymology annotation explains the origin of a word and the historical development of its meaning.
etymology
The etymology annotation explains the origin of a word and the historical development of its meaning.
Definitions are usually taken from Wiktionary.
The etymology annotation is usually applied to rdfs:label entities, to better understand the connection between a label and the concept it concisely represents.
VIMTerm
The term in the International vocabulary of metrology (VIM) (JCGM 200:2008) that corresponds to the annotated term in EMMO.
https://www.bipm.org/documents/20126/2071204/JCGM_200_2012.pdf
quantity value (term in VIM that corresponds to Quantity in EMMO)
VIMTerm
The term in the International vocabulary of metrology (VIM) (JCGM 200:2008) that corresponds to the annotated term in EMMO.
ucumCode
The Unified Code for Units of Measure (UCUM) is a code system intended to include all units of measures being contemporarily used in international science, engineering, and business. The purpose is to facilitate unambiguous electronic communication of quantities together with their units.
Unified Code for Units of Measure (UCUM).
https://ucum.org/
ucumCode
Unified Code for Units of Measure (UCUM).
The Unified Code for Units of Measure (UCUM) is a code system intended to include all units of measures being contemporarily used in international science, engineering, and business. The purpose is to facilitate unambiguous electronic communication of quantities together with their units.
inchiKey
A hash of the full International Chemical Identifier (InChi) for a chemical substance.
The InChiKey is a hash of the full InChi identifier using the SHA-256 algorithm, designed to allow for easy web searches of chemical compounds.
https://inchi.info/inchikey_overview_en.html
inchiKey
A hash of the full International Chemical Identifier (InChi) for a chemical substance.
The InChiKey is a hash of the full InChi identifier using the SHA-256 algorithm, designed to allow for easy web searches of chemical compounds.
conceptualisation
A conceptualisation is the preliminary step behind each theory, preceding each logical formalisation. The readers approaching an ontology entity should first read the conceptualisation annotation to clearly understand "what we are talking about" and the accompanying terminology, and then read the elucidation.
The conceptualisation annotation is a comment that helps the reader to understand how the world has been conceptualised by the ontology authors.
conceptualisation
The conceptualisation annotation is a comment that helps the reader to understand how the world has been conceptualised by the ontology authors.
A conceptualisation is the preliminary step behind each theory, preceding each logical formalisation. The readers approaching an ontology entity should first read the conceptualisation annotation to clearly understand "what we are talking about" and the accompanying terminology, and then read the elucidation.
An elucidation can provide references to external knowledge sources (i.e. ISO, Goldbook, RoMM).
OWLDLRestrictedAxiom
Axiom not included in the theory because of OWL 2 DL global restrictions for decidability.
OWLDLRestrictedAxiom
Axiom not included in the theory because of OWL 2 DL global restrictions for decidability.
ISO80000Reference
Corresponding item number in ISO 80 000.
https://www.iso.org/obp/ui/#iso:std:iso:80000:-1:ed-1:v1:en
3-1.1 (ISO80000 reference to length)
ISO80000Reference
Corresponding item number in ISO 80 000.
wikidataReference
URL corresponding to entry in Wikidata.
https://www.wikidata.org/
wikidataReference
URL corresponding to entry in Wikidata.
smileReference
OpenSMILE representation of a molecular structure.
OpenSMILES is an open specification of the SMILE language for specifying molecular structures, which has become a defacto standard for exchange of molecular structures.
http://opensmiles.org/opensmiles.html
smileReference
OpenSMILE representation of a molecular structure.
OpenSMILES is an open specification of the SMILE language for specifying molecular structures, which has become a defacto standard for exchange of molecular structures.
illustration
A link to a graphical representation aimed to facilitate understanding of the concept, or of an annotation.
illustration
A link to a graphical representation aimed to facilitate understanding of the concept, or of an annotation.
IEVReference
URL for the entry in the International Electrotechnical Vocabulary (IEV).
https://www.electropedia.org/
IEVReference
URL for the entry in the International Electrotechnical Vocabulary (IEV).
ISO9000Reference
ISO9000Reference
iupacReference
DOI to corresponding concept in IUPAC
https://goldbook.iupac.org/
iupacReference
Tessellation
A causal object that is tessellated in direct parts.
A tessellation (or tiling) is the covering of a surface, often a plane, using one or more geometric shapes, called tiles, with no overlaps and no gaps.
Tiling
Tessellation
A tessellation (or tiling) is the covering of a surface, often a plane, using one or more geometric shapes, called tiles, with no overlaps and no gaps.
A causal object that is tessellated in direct parts.
F
FluorineSymbol
The symbol that stands for the fluorine atom.
FluorineSymbol
The symbol that stands for the fluorine atom.
0.006
0.0
SquareCentiMetreMinute
"Square centimeter minute" is a unit for 'Area Time' expressed as cm² . m.
-- QUDT
http://qudt.org/2.1/vocab/unit
Square Centimetre Minute
SquareCentiMetreMinute
http://qudt.org/vocab/unit/CentiM2-MIN
cm2.min
cm²m
"Square centimeter minute" is a unit for 'Area Time' expressed as cm² . m.
-- QUDT
SINonCoherentUnit
A non-SI coherent can be expressed in terms of its corresponding SI coherent unit, as
nonsi_coherent_unit = si_coherent_unit * multiplier + offset
where `multiplier` and `offset` are specified via the 'hasConversionMultiplier' and 'hasConversionOffset' data properties, respectively.
A unit whos numerical factor in front of the product of base units is NOT equal to one.
SINonCoherentUnit
A unit whos numerical factor in front of the product of base units is NOT equal to one.
A non-SI coherent can be expressed in terms of its corresponding SI coherent unit, as
nonsi_coherent_unit = si_coherent_unit * multiplier + offset
where `multiplier` and `offset` are specified via the 'hasConversionMultiplier' and 'hasConversionOffset' data properties, respectively.
T+1 L+2 M0 I0 Θ0 N0 J0
AreaTimeUnit
The class of units with dimensionality 'AreaTime'.
AreaTimeUnit
The class of units with dimensionality 'AreaTime'.
Somatosensory
Somatosensory
Existent
'Existent' is the EMMO class to be used for representing real world physical objects under a reductionistic perspective (i.e. objects come from the composition of sub-part objects, both in time and space).
'Existent' class collects all individuals that stand for physical objects that can be structured in well defined temporal sub-parts called states, through the temporal direct parthood relation.
This class provides a first granularity hierarchy in time, and a way to axiomatize tessellation principles for a specific whole with a non-transitivity relation (direct parthood) that helps to retain the granularity levels.
e.g. a car, a supersaturated gas with nucleating nanoparticles, an atom that becomes ionized and then recombines with an electron.
A 'Physical' which is a tessellation of 'State' temporal direct parts.
An 'Existent' individual stands for a real world object for which the ontologist wants to provide univocal tessellation in time.
By definition, the tiles are represented by 'State'-s individual.
Tiles are related to the 'Existent' through temporal direct parthood, enforcing non-transitivity and inverse-functionality.
Being hasTemporalDirectPart a proper parthood relation, there cannot be 'Existent' made of a single 'State'.
Moreover, due to inverse functionality, a 'State' can be part of only one 'Existent', preventing overlapping between 'Existent'-s.
true
Existent
A 'Physical' which is a tessellation of 'State' temporal direct parts.
Au
GoldSymbol
The symbol that stands for the gold atom.
GoldSymbol
The symbol that stands for the gold atom.
ChemicalElement
The IUPAC Gold Book defines the a chemical element both as:
- a species of atoms; all atoms with the same number of protons in the atomic nucleus
- a pure chemical substance composed of atoms with the same number of protons in the atomic nucleus
This qualifies a chemical element as a name and not a matter obejct that can stand for an atom or a substance.
The symbol for a specific chemical element, that can stand both for an atom or a substance.
http://publications.iupac.org/ci/2005/2701/ud.html
ChemicalElement
The symbol for a specific chemical element, that can stand both for an atom or a substance.
https://doi.org/10.1351/goldbook.C01022
SupplyChain
A supply chain is a system of organizations, people, activities, information, and resources involved in supplying a product or service to a consumer.
SupplyChain
A supply chain is a system of organizations, people, activities, information, and resources involved in supplying a product or service to a consumer.
1.0
0.0
CubicMetrePerSquareSecond
`Cubic Meter per Square Second` is a C.G.S System unit for `Standard Gravitational Parameter` expressed as m³/s²
-- QUDT
http://qudt.org/2.1/vocab/unit
Cubic Metre per Square Second
CubicMetrePerSquareSecond
http://qudt.org/vocab/unit/M3-PER-SEC2
m3.s-2
m3/s2
m³/s²
`Cubic Meter per Square Second` is a C.G.S System unit for `Standard Gravitational Parameter` expressed as m³/s²
-- QUDT
SICoherentDerivedUnit
A SI derived unit whos numerical factor in front of the product of SI base units is one.
This class collects all units that are products or powers of SI base or SI special units only.
m/s
kg/m^3
SICoherentDerivedUnit
A SI derived unit whos numerical factor in front of the product of SI base units is one.
T-2 L+3 M0 I0 Θ0 N0 J0
VolumePerSquareTimeUnit
The class of units with dimensionality 'VolumePerSquareTime'.
VolumePerSquareTimeUnit
The class of units with dimensionality 'VolumePerSquareTime'.
0.0
1000.0
TonnePerCubicMetre
unit tonne divided by the power of the SI base unit metre with the exponent 3
-- QUDT
http://qudt.org/2.1/vocab/unit
Tonne Per Cubic Metre
TonnePerCubicMetre
http://qudt.org/vocab/unit/TONNE-PER-M3
t.m-3
t/m³
unit tonne divided by the power of the SI base unit metre with the exponent 3
-- QUDT
T0 L-3 M+1 I0 Θ0 N0 J0
DensityUnit
The class of units with dimensionality 'Density'.
DensityUnit
The class of units with dimensionality 'Density'.
SIAcceptedDerivedUnit
Defived units that are accepted to be used with SI.
SIAcceptedDerivedUnit
Defived units that are accepted to be used with SI.
Spray
A suspension of liquid droplets dispersed in a gas through an atomization process.
Spray
A suspension of liquid droplets dispersed in a gas through an atomization process.
GasLiquidSuspension
A coarse dispersion of liquid in a gas continuum phase.
Rain, spray.
GasLiquidSuspension
A coarse dispersion of liquid in a gas continuum phase.
ShearStrain
Displacement of one surface with respect to another divided by the distance between them.
ShearStrain
https://qudt.org/vocab/quantitykind/ShearStrain
https://www.wikidata.org/wiki/Q7561704
https://www.electropedia.org/iev/iev.nsf/display?openform&ievref=113-03-59
4-17.3
Displacement of one surface with respect to another divided by the distance between them.
https://doi.org/10.1351/goldbook.S05637
ISQDimensionlessQuantity
A quantity to which no physical dimension is assigned and with a corresponding unit of measurement in the SI of the unit one.
ISQDimensionlessQuantity
http://qudt.org/vocab/quantitykind/Dimensionless
A quantity to which no physical dimension is assigned and with a corresponding unit of measurement in the SI of the unit one.
https://en.wikipedia.org/wiki/Dimensionless_quantity
https://doi.org/10.1351/goldbook.D01742
MechanicalQuantity
Quantities categorised according to ISO 80000-4.
MechanicalQuantity
Quantities categorised according to ISO 80000-4.
SIDimensionalUnit
Dimensional unit with its physical dimensionality described accortind to the International System of Units (SI).
In SI are the physical dimensions of the base quantities time (T), length (L), mass (M), electric current (I), thermodynamic temperature (Θ), amount of substance (N) and luminous intensity (J).
In general the dimension of any quantity Q is written in the form of a dimensional product,
dim Q = T^α L^β M^γ I^δ Θ^ε N^ζ J^η
where the exponents α, β, γ, δ, ε, ζ and η, which are generally small integers, which can be positive, negative, or zero, are called the dimensional exponents.
-- SI brouchure
The SI dimensional units are equivalent to dimensional strings that uniquely defines their dimensionality by specifying the values of the coefficients α, β, γ, δ, ε, ζ and η. A dimensional string is a space-separated string of the physical dimension symbols followed by the value of the exponent (including it sign). They should always match the following regular expression:
^T([+-][1-9]|0) L([+-][1-9]|0) M([+-][1-9]|0) I([+-][1-9]|0) Θ([+-][1-9]|0) N([+-][1-9]|0) J([+-][1-9]|0)$
Examples of correspondance between dimensional units and their dimensional units are:
- AmountOfSubstanceUnit <=> "T0 L0 M0 I0 Θ0 N+1 J0"
- TimeUnit <=> "T+1 L0 M0 I0 Θ0 N0 J0"
- ElectricCurrentDensityUnit <=> "T0 L-2 M0 I+1 Θ0 N0 J0"
SIDimensionalUnit
Dimensional unit with its physical dimensionality described accortind to the International System of Units (SI).
The class of units with dimensionality 'SIDimensional'.
In SI are the physical dimensions of the base quantities time (T), length (L), mass (M), electric current (I), thermodynamic temperature (Θ), amount of substance (N) and luminous intensity (J).
In general the dimension of any quantity Q is written in the form of a dimensional product,
dim Q = T^α L^β M^γ I^δ Θ^ε N^ζ J^η
where the exponents α, β, γ, δ, ε, ζ and η, which are generally small integers, which can be positive, negative, or zero, are called the dimensional exponents.
-- SI brouchure
The SI dimensional units are equivalent to dimensional strings that uniquely defines their dimensionality by specifying the values of the coefficients α, β, γ, δ, ε, ζ and η. A dimensional string is a space-separated string of the physical dimension symbols followed by the value of the exponent (including it sign). They should always match the following regular expression:
^T([+-][1-9]|0) L([+-][1-9]|0) M([+-][1-9]|0) I([+-][1-9]|0) Θ([+-][1-9]|0) N([+-][1-9]|0) J([+-][1-9]|0)$
Examples of correspondance between dimensional units and their dimensional units are:
- AmountOfSubstanceUnit <=> "T0 L0 M0 I0 Θ0 N+1 J0"
- TimeUnit <=> "T+1 L0 M0 I0 Θ0 N0 J0"
- ElectricCurrentDensityUnit <=> "T0 L-2 M0 I+1 Θ0 N0 J0"
La
LanthanumSymbol
The symbol that stands for the lanthanum atom.
LanthanumSymbol
The symbol that stands for the lanthanum atom.
MassConcentration
Mass of a constituent divided by the volume of the mixture.
MassConcentration
http://qudt.org/vocab/quantitykind/MassConcentration
Mass of a constituent divided by the volume of the mixture.
https://doi.org/10.1351/goldbook.M03713
Density
Quantity representing the spatial distribution of mass in a continuous material.
MassConcentration
MassDensity
Density
http://qudt.org/vocab/quantitykind/Density
4-2
9-10
Mass per volume.
Quantity representing the spatial distribution of mass in a continuous material.
https://doi.org/10.1351/goldbook.D01590
ChemicalCompositionQuantity
ChemicalCompositionQuantity
Concentration
the abundance of a constituent divided by the total volume of a mixture.
Concentration
https://qudt.org/vocab/quantitykind/Concentration
https://www.wikidata.org/wiki/Q3686031
https://dbpedia.org/page/Concentration
the abundance of a constituent divided by the total volume of a mixture.
https://en.wikipedia.org/wiki/Concentration
https://goldbook.iupac.org/terms/view/C01222
CubicExpansionCoefficient
Quantity characterizing the variation with thermodynamic temperature T of the volume V of a body, under given conditions.
alpha_V = (1/V) * (dV/dT)
CubicExpansionCoefficient
https://qudt.org/vocab/quantitykind/CubicExpansionCoefficient
https://www.wikidata.org/wiki/Q74761076
https://www.electropedia.org/iev/iev.nsf/display?openform&ievref=113-04-28
5-3.2
Quantity characterizing the variation with thermodynamic temperature T of the volume V of a body, under given conditions.
CoefficientOfThermalExpansion
Material property which describes how the size of an object changes with a change in temperature.
ThermalExpansionCoefficient
CoefficientOfThermalExpansion
https://www.wikidata.org/wiki/Q45760
Material property which describes how the size of an object changes with a change in temperature.
ThermodynamicalQuantity
Quantities categorised according to ISO 80000-5.
ThermodynamicalQuantity
Quantities categorised according to ISO 80000-5.
LinearExpansionCoefficient
Relative change of length per change of temperature.
LinearExpansionCoefficient
https://qudt.org/vocab/quantitykind/LinearExpansionCoefficient
https://www.wikidata.org/wiki/Q74760821
https://www.electropedia.org/iev/iev.nsf/display?openform&ievref=113-04-27
5-3.1
Relative change of length per change of temperature.
Cm
CuriumSymbol
The symbol that stands for the curium atom.
CuriumSymbol
The symbol that stands for the curium atom.
ThermalResistance
The name “thermal resistance” and the symbol R are used in building technology to designate thermal insulance.
Thermodynamic temperature difference divided by heat flow rate.
ThermalResistance
https://qudt.org/vocab/quantitykind/ThermalResistance
https://www.wikidata.org/wiki/Q899628
https://www.electropedia.org/iev/iev.nsf/display?openform&ievref=113-04-45
5-12
Thermodynamic temperature difference divided by heat flow rate.
ISQDerivedQuantity
Derived quantities defined in the International System of Quantities (ISQ).
ISQDerivedQuantity
Derived quantities defined in the International System of Quantities (ISQ).
1.0
0.0
AmperePerJoule
The inverse measure of joule-per-ampere or weber. The measure for the reciprical of magnetic flux.
-- QUDT
http://qudt.org/2.1/vocab/unit
Ampere per Joule
AmperePerJoule
http://qudt.org/vocab/unit/A-PER-J
A.J-1
A/J
A/J
The inverse measure of joule-per-ampere or weber. The measure for the reciprical of magnetic flux.
-- QUDT
T+3 L-2 M-1 I+1 Θ0 N0 J0
ElectricCurrentPerUnitEnergyUnit
The class of units with dimensionality 'ElectricCurrentPerUnitEnergy'.
ElectricCurrentPerUnitEnergyUnit
The class of units with dimensionality 'ElectricCurrentPerUnitEnergy'.
No
NobeliumSymbol
The symbol that stands for the nobelium atom.
NobeliumSymbol
The symbol that stands for the nobelium atom.
HolisticSystem
A system is conceived as an aggregate of things that 'work' (or interact) together. While a system extends in time through distinct temporal parts (like every other 4D object), this elucdation focuses on a timescale in which the obejct shows a persistence in time.
An object that is made of a set of sub objects working together as parts of a mechanism or an interconnecting network (natural or artificial); a complex whole.
HolisticSystem
An object that is made of a set of sub objects working together as parts of a mechanism or an interconnecting network (natural or artificial); a complex whole.
A system is conceived as an aggregate of things that 'work' (or interact) together. While a system extends in time through distinct temporal parts (like every other 4D object), this elucdation focuses on a timescale in which the obejct shows a persistence in time.
RotationalDisplacement
Quotient of the traversed circular path length of a point in space during a rotation and its distance from the axis or centre of rotation.
AngularDisplacement
RotationalDisplacement
https://www.wikidata.org/wiki/Q3305038
3-6
Quotient of the traversed circular path length of a point in space during a rotation and its distance from the axis or centre of rotation.
https://en.wikipedia.org/wiki/Angular_displacement
SpaceAndTimeQuantity
Quantities categorised according to ISO 80000-3.
SpaceAndTimeQuantity
Quantities categorised according to ISO 80000-3.
Angle
Ratio of circular arc length to radius.
PlaneAngle
Angle
http://qudt.org/vocab/quantitykind/PlaneAngle
3-5
Ratio of circular arc length to radius.
https://doi.org/10.1351/goldbook.A00346
mol
Mole
The mole, symbol mol, is the SI unit of amount of substance. One mole contains exactly 6.022 140 76 × 1023 elementary entities. This number is the fixed numerical value of the Avogadro constant, NA, when expressed in the unit mol−1 and is called the Avogadro number. The amount of substance, symbol n, of a system is a measure of the number of specified elementary entities. An elementary entity may be an atom, a molecule, an ion, an electron, any other particle or specified group of particles.
Mole
C34
http://qudt.org/vocab/unit/MOL
mol
http://dbpedia.org/resource/Mole_%28unit%29
The mole, symbol mol, is the SI unit of amount of substance. One mole contains exactly 6.022 140 76 × 1023 elementary entities. This number is the fixed numerical value of the Avogadro constant, NA, when expressed in the unit mol−1 and is called the Avogadro number. The amount of substance, symbol n, of a system is a measure of the number of specified elementary entities. An elementary entity may be an atom, a molecule, an ion, an electron, any other particle or specified group of particles.
http://en.wikipedia.org/wiki/Mole_(unit)
https://doi.org/10.1351/goldbook.M03980
T0 L0 M0 I0 Θ0 N+1 J0
AmountUnit
The class of units with dimensionality 'Amount'.
AmountUnit
The class of units with dimensionality 'Amount'.
1e-06
0.0
MicroGramPerLitre
0.000000001-fold of the SI base unit kilogram divided by the unit litre
-- QUDT
http://qudt.org/2.1/vocab/unit
Microgram Per Litre
MicroGramPerLitre
http://qudt.org/vocab/unit/MicroGM-PER-L
ug.L-1
ug/L
μg/L
0.000000001-fold of the SI base unit kilogram divided by the unit litre
-- QUDT
MeasurementUnit
"Real scalar quantity, defined and adopted by convention, with which any other quantity of the same kind can be compared to express the ratio of the second quantity to the first one as a number"
ISO 80000-1
A metrological reference for a physical quantity.
kg
m/s
km
MeasurementUnit
A metrological reference for a physical quantity.
measurement unit (VIM3 1.9)
"Real scalar quantity, defined and adopted by convention, with which any other quantity of the same kind can be compared to express the ratio of the second quantity to the first one as a number"
ISO 80000-1
"Unit symbols are mathematical entities and not abbreviations."
"Symbols for units are treated as mathematical entities. In expressing the value of a quantity as the product of a numerical value and a unit, both the numerical value and the unit may be treated by the ordinary rules of algebra."
https://www.bipm.org/utils/common/pdf/si-brochure/SI-Brochure-9-EN.pdf
Measurement units and procedure units are disjoint.
Quantitative value are expressed as a multiple of the 'MeasurementUnit'.
1
1
PrefixedUnit
A measurement unit that is made of a metric prefix and a unit symbol.
PrefixedUnit
A measurement unit that is made of a metric prefix and a unit symbol.
ElementaryBoson
An elementary particle of a fundamental bosonic type.
ElementaryBoson
An elementary particle of a fundamental bosonic type.
Moulding
Free forming is pressure forming with tools that do not or only partially contain the shape of the workpiece and move against each other (from: DIN 8583 Part 3/05.70).
Gesenkformen
Moulding
URN
The term "Uniform Resource Name" (URN) has been used historically to refer to both URIs under the "urn" scheme [RFC2141], which are required to remain globally unique and persistent even when the resource ceases to exist or becomes unavailable, and to any other URI with the properties of a name.
URN
The term "Uniform Resource Name" (URN) has been used historically to refer to both URIs under the "urn" scheme [RFC2141], which are required to remain globally unique and persistent even when the resource ceases to exist or becomes unavailable, and to any other URI with the properties of a name.
URI
A Uniform Resource Identifier (URI) is a compact sequence of characters that identifies an abstract or physical resource.
URI = scheme ":" ["//" authority] path ["?" query] ["#" fragment]
URI
https://en.wikipedia.org/wiki/File:URI_syntax_diagram.svg
A Uniform Resource Identifier (URI) is a compact sequence of characters that identifies an abstract or physical resource.
URI = scheme ":" ["//" authority] path ["?" query] ["#" fragment]
3.895644e+19
0.0
ReciprocalSquareGigaElectronVolt
Per Square Giga Electron Volt Unit is a denominator unit with dimensions /GeV².
-- QUDT
http://qudt.org/2.1/vocab/unit
Reciprocal Square Giga Electron Volt
ReciprocalSquareGigaElectronVolt
http://qudt.org/vocab/unit/PER-GigaEV2
GeV-2
/GeV²
Per Square Giga Electron Volt Unit is a denominator unit with dimensions /GeV².
-- QUDT
T+4 L-4 M-2 I0 Θ0 N0 J0
ReciprocalSquareEnergyUnit
The class of units with dimensionality 'ReciprocalSquareEnergy'.
ReciprocalSquareEnergyUnit
The class of units with dimensionality 'ReciprocalSquareEnergy'.
FermiEnergy
In a metal, highest occupied energy level at zero thermodynamic temperature, where energy level means the energy of an electron in the interior of a substance.
FermiEnergy
https://qudt.org/vocab/quantitykind/FermiEnergy
https://www.wikidata.org/wiki/Q431335
https://www.electropedia.org/iev/iev.nsf/display?openform&ievref=113-06-18
12-27.1
In a metal, highest occupied energy level at zero thermodynamic temperature, where energy level means the energy of an electron in the interior of a substance.
https://doi.org/10.1351/goldbook.F02340
Energy
A property of objects which can be transferred to other objects or converted into different forms.
Energy is often defined as "ability of a system to perform work", but it might be misleading since is not necessarily available to do work.
Energy
http://qudt.org/vocab/quantitykind/Energy
5-20-1
A property of objects which can be transferred to other objects or converted into different forms.
https://doi.org/10.1351/goldbook.E02101
CondensedMatterPhysicsQuantity
Quantities categorised according to ISO 80000-12.
CondensedMatterPhysicsQuantity
Quantities categorised according to ISO 80000-12.
10000.0
0.0
NewtonPerSquareCentiMetre
derived SI unit newton divided by the 0.0001-fold of the power of the SI base unit metre by exponent 2
-- QUDT
http://qudt.org/2.1/vocab/unit
Newton Per Square Centimetre
NewtonPerSquareCentiMetre
http://qudt.org/vocab/unit/N-PER-CentiM2
N.cm-2
N/cm²
derived SI unit newton divided by the 0.0001-fold of the power of the SI base unit metre by exponent 2
-- QUDT
T-2 L-1 M+1 I0 Θ0 N0 J0
PressureUnit
The class of units with dimensionality 'Pressure'.
PressureUnit
The class of units with dimensionality 'Pressure'.
SINonCoherentDerivedUnit
A derived unit whos numerical factor in front of the product of base units is NOT equal to one.
cm/s
SINonCoherentDerivedUnit
A derived unit whos numerical factor in front of the product of base units is NOT equal to one.
Modeller
A estimator that uses modelling to declare a property of an object (i.e. infer a property from other properties).
Modeller
A estimator that uses modelling to declare a property of an object (i.e. infer a property from other properties).
Estimator
A characteriser that declares a property for an object without actually interact with it with the specific interaction required by the property definition (i.e. infer a property from other properties).
Estimator
A characteriser that declares a property for an object without actually interact with it with the specific interaction required by the property definition (i.e. infer a property from other properties).
35
79.904
BromineAtom
Atom subclass for bromine.
BromineAtom
Atom subclass for bromine.
Atom
A standalone atom has direct part one 'nucleus' and one 'electron_cloud'.
An O 'atom' within an O₂ 'molecule' is an 'e-bonded_atom'.
In this material branch, H atom is a particular case, with respect to higher atomic number atoms, since as soon as it shares its electron it has no nucleus entangled electron cloud.
We cannot say that H₂ molecule has direct part two H atoms, but has direct part two H nucleus.
An 'atom' is a 'nucleus' surrounded by an 'electron_cloud', i.e. a quantum system made of one or more bounded electrons.
ChemicalElement
Atom
A standalone atom has direct part one 'nucleus' and one 'electron_cloud'.
An O 'atom' within an O₂ 'molecule' is an 'e-bonded_atom'.
In this material branch, H atom is a particular case, with respect to higher atomic number atoms, since as soon as it shares its electron it has no nucleus entangled electron cloud.
We cannot say that H₂ molecule has direct part two H atoms, but has direct part two H nucleus.
An 'atom' is a 'nucleus' surrounded by an 'electron_cloud', i.e. a quantum system made of one or more bounded electrons.
FreeForming
Free forming is pressure forming with tools that do not or only partially contain the shape of the workpiece and move against each other.
Non la metterei
Printing forms with tools that do not or only partially contain the shape of the workpiece and move against each other. The workpiece shape is created by free or fixed relative movement between the tool and the workpiece (kinematic shape generation).
FreeForming
SourceCode
A programming language entity expressing a formal detailed plan of what a software is intended to do.
A source code is the companion of an application, being it the entity used to generate the application list of CPU executable instructions.
SourceCode
A programming language entity expressing a formal detailed plan of what a software is intended to do.
A source code is the companion of an application, being it the entity used to generate the application list of CPU executable instructions.
Source code (also referred to as source or code) is the version of software as it is originally written (i.e., typed into a computer) by a human in plain text (i.e., human readable alphanumeric characters).
Software
All or part of the programs, procedures, rules, and associated documentation of an information processing system.
Software is usually used as a generic term for programs. However, in its broadest sense it can refer to all information (i.e., both programs and data) in electronic form and can provide a distinction from hardware, which refers to computers or other electronic systems on which software can exist and be use.
Here we explicitly include in the definition also all the data (e.g. source code, script files) that takes part to the building of the executable, are necessary to the execution of a program or that document it for the users.
Software
All or part of the programs, procedures, rules, and associated documentation of an information processing system.
Software is usually used as a generic term for programs. However, in its broadest sense it can refer to all information (i.e., both programs and data) in electronic form and can provide a distinction from hardware, which refers to computers or other electronic systems on which software can exist and be use.
Here we explicitly include in the definition also all the data (e.g. source code, script files) that takes part to the building of the executable, are necessary to the execution of a program or that document it for the users.
ProgrammingLanguage
A language object that follows syntactic rules of a programming language.
A programming language object can also be a fragment (e.g. a C function) not suitable for exectution.
Code
SoftwareCode
ProgrammingLanguage
A language object that follows syntactic rules of a programming language.
A programming language object can also be a fragment (e.g. a C function) not suitable for exectution.
Entities are not necessarily digital data, but can be code fragments printed on paper.
0.0
1.0
MetrePerSecond
Metre per second is an SI derived unit of both speed (scalar) and velocity (vector quantity which specifies both magnitude and a specific direction), defined by distance in metres divided by time in seconds.
The official SI symbolic abbreviation is mu00b7s-1, or equivalently either m/s.
-- QUDT
MetrePerSecond
MTS
http://qudt.org/vocab/unit/M-PER-SEC
http://www.ontology-of-units-of-measure.org/resource/om-2/metrePerSecond-Time
m.s-1
m/s
Metre per second is an SI derived unit of both speed (scalar) and velocity (vector quantity which specifies both magnitude and a specific direction), defined by distance in metres divided by time in seconds.
The official SI symbolic abbreviation is mu00b7s-1, or equivalently either m/s.
-- QUDT
T-1 L+1 M0 I0 Θ0 N0 J0
SpeedUnit
The class of units with dimensionality 'Speed'.
SpeedUnit
The class of units with dimensionality 'Speed'.
ChipboardManufacturing
ChipboardManufacturing
FormingFromChip
FormingFromChip
FormingFromLiquid
FormingFromLiquid
FromNotProperShapeToWorkPiece
From Powder, from liquid, from gas
da una forma non propria ad una forma propria
FromNotProperShapeToWorkPiece
From Powder, from liquid, from gas
Powder:
particles that are usually less than 1 mm in size
VolumicTotalCrossSection
Product of the number density na of the atoms and the cross section σ_tot for a given type of atoms.
MacroscopicTotalCrossSection
VolumicTotalCrossSection
https://qudt.org/vocab/quantitykind/MacroscopicTotalCrossSection
https://www.wikidata.org/wiki/Q98280548
10-42.2
Product of the number density na of the atoms and the cross section σ_tot for a given type of atoms.
AtomicAndNuclearPhysicsQuantity
Quantities categorised according to ISO 80000-10.
AtomicAndNuclearPhysicsQuantity
Quantities categorised according to ISO 80000-10.
PeriodDuration
duration of one cycle of a periodic event
Period
PeriodDuration
https://qudt.org/vocab/quantitykind/Period
https://www.wikidata.org/wiki/Q2642727
https://www.electropedia.org/iev/iev.nsf/display?openform&ievref=103-06-01
3-14
duration of one cycle of a periodic event
https://doi.org/10.1351/goldbook.P04493
Duration
Physical quantity for describing the temporal distance between events.
Duration
https://www.wikidata.org/wiki/Q2199864
https://www.electropedia.org/iev/iev.nsf/display?openform&ievref=113-01-13
3-9
Physical quantity for describing the temporal distance between events.
83.798
36
KryptonAtom
Atom subclass for krypton.
KryptonAtom
Atom subclass for krypton.
Process
A process can be defined only according to an entity type. The minimum process is an entity made of two entities of different types that are temporally related.
The superclass for causal structure classes whose individuals have some temporal item parts that are not of the same type of the whole.
Occurrent
Perdurant
Practically speaking, the Process class can be populated by primitive subclasses (e.g. Cooking) for each of which holds the axiom that not all the item temporal parts are of the same type of the whole (e.g. breaking an egg, which is not necessarily a cooking process) and there are at least two temporal item parts of different types (e.g. breaking and egg and turning on the stove).
The intended usage is not for an individual to belong directly to Process, but to belong to a specific subclass of Process that identifies entities with a specific non-type-persistent structure.
Process
The superclass for causal structure classes whose individuals have some temporal item parts that are not of the same type of the whole.
A process can be defined only according to an entity type. The minimum process is an entity made of two entities of different types that are temporally related.
Following the common definition of process, the reader may think that every entity in the EMMO should be a process, since every 4D entity0 always has a time dimension. However, in the EMMO we restrict the concept of process to items whose temporal parts show a change in type (i.e. every 4D object unfolds in time, but not every 4D time unfolding may be of interest for the ontologist and categorized as a process).
The definition of every specific process subclass requires a reference type, that is expressed by some but not all temporal parts.
WorkpieceManufacturing
A manufacturing with an output that is an object with a specific function, shape, or intended use, not simply a material.
DIN 8580:2020
ISO 15531-1:2004
discrete manufacturing: production of discrete items.
ISO 8887-1:2017
manufacturing: production of components
Werkstücke
DiscreteManufacturing
WorkpieceManufacturing
A manufacturing with an output that is an object with a specific function, shape, or intended use, not simply a material.
RelativePressureCoefficient
Relative change of pressure with temperature at constant volume.
RelativePressureCoefficient
https://qudt.org/vocab/quantitykind/RelativePressureCoefficient
https://www.wikidata.org/wiki/Q74761852
https://www.electropedia.org/iev/iev.nsf/display?openform&ievref=113-04-30
5-3.3
Relative change of pressure with temperature at constant volume.
PressureCoefficient
Change of pressure per change of temperature at constant volume.
PressureCoefficient
https://qudt.org/vocab/quantitykind/PressureCoefficient
https://www.wikidata.org/wiki/Q74762732
https://www.electropedia.org/iev/iev.nsf/display?openform&ievref=113-04-29
5-4
Change of pressure per change of temperature at constant volume.
1.0
0.0
NewtonSecondPerRadian
Newton seconds measured per radian
-- QUDT
http://qudt.org/2.1/vocab/unit
Newton seconds per radian
NewtonSecondPerRadian
http://qudt.org/vocab/unit/N-SEC-PER-RAD
N⋅s/rad
Newton seconds measured per radian
-- QUDT
T-1 L+1 M+1 I0 Θ0 N0 J0
MomentumUnit
The class of units with dimensionality 'Momentum'.
MomentumUnit
The class of units with dimensionality 'Momentum'.
ConductanceForAlternatingCurrent
Real part of the admittance.
ConductanceForAlternatingCurrent
https://www.wikidata.org/wiki/Q79464628
https://www.electropedia.org/iev/iev.nsf/display?openform&ievref=131-12-53
6-52.2
Real part of the admittance.
ElectricConductance
Inverse of 'ElectricalResistance'.
Measure of the ease for electric current to pass through a material.
Conductance
ElectricConductance
http://qudt.org/vocab/quantitykind/Conductance
https://www.wikidata.org/wiki/Q309017
https://www.electropedia.org/iev/iev.nsf/display?openform&ievref=131-12-06
6-47
Measure of the ease for electric current to pass through a material.
https://doi.org/10.1351/goldbook.E01925
T-1 L-3 M+1 I0 Θ0 N0 J0
MassPerVolumeTimeUnit
The class of units with dimensionality 'MassPerVolumeTime'.
MassPerVolumeTimeUnit
The class of units with dimensionality 'MassPerVolumeTime'.
1000000000.0
0.0
ReciprocalMicroMolePerLitre
Units used to describe the sensitivity of detection of a spectrophotometer.
-- QUDT
http://qudt.org/2.1/vocab/unit
Reciprocal micromole per litre
ReciprocalMicroMolePerLitre
http://qudt.org/vocab/unit/PER-MicroMOL-L
umol-1.L-1
/(mmol⋅L)
Units used to describe the sensitivity of detection of a spectrophotometer.
-- QUDT
T0 L-3 M0 I0 Θ0 N-1 J0
ReciprocalAmountPerVolumeUnit
The class of units with dimensionality 'ReciprocalAmountPerVolume'.
ReciprocalAmountPerVolumeUnit
The class of units with dimensionality 'ReciprocalAmountPerVolume'.
0.0
1.0
PerPascalSecond
Per Pascal and Second.
http://qudt.org/2.1/vocab/unit
PerPascalSecond
PerPascalSecond
http://qudt.org/vocab/unit/PER-PA-SEC
Pa-1.s-1
/(Pa⋅s)
Per Pascal and Second.
T+1 L+1 M-1 I0 Θ0 N0 J0
LengthTimePerMassUnit
The class of units with dimensionality 'LengthTimePerMass'.
LengthTimePerMassUnit
The class of units with dimensionality 'LengthTimePerMass'.
AbsoluteHumidity
Mass of the contained water vapour per volume.
MassConcentrationOfWaterVapour
AbsoluteHumidity
https://qudt.org/vocab/quantitykind/AbsoluteHumidity
https://qudt.org/vocab/quantitykind/MassConcentrationOfWaterVapour
https://www.wikidata.org/wiki/Q76378808
https://www.electropedia.org/iev/iev.nsf/display?openform&ievref=113-04-60
5-28
Mass of the contained water vapour per volume.
1.0
0.0
BecquerelPerCubicMetre
The SI derived unit of unit in the category of Radioactivity concentration.
-- QUDT
http://qudt.org/2.1/vocab/unit
http://www.efunda.com/glossary/units/units--radioactivity_concentration--becquerel_per_cubic_meter.cfm
Becquerel per Cubic Metre
BecquerelPerCubicMetre
http://qudt.org/vocab/unit/BQ-PER-M3
Bq.m-3
Bq/m3
Bq/m³
The SI derived unit of unit in the category of Radioactivity concentration.
-- QUDT
T-1 L-3 M0 I0 Θ0 N0 J0
FrequencyPerVolumeUnit
The class of units with dimensionality 'FrequencyPerVolume'.
FrequencyPerVolumeUnit
The class of units with dimensionality 'FrequencyPerVolume'.
BindingFraction
The ratio of the binding energy of a nucleus to the atomic mass number.
BindingFraction
https://qudt.org/vocab/quantitykind/BindingFraction
https://www.wikidata.org/wiki/Q98058362
10-23.2
The ratio of the binding energy of a nucleus to the atomic mass number.
0.0
1.0
PerSecond
A reciprical unit of time for `reciprocal second` or `inverse second`. The `Per Second` is a unit of rate.
-- QUDT
http://qudt.org/2.1/vocab/unit
ReciprocalSecond
PerSecond
http://qudt.org/vocab/unit/PER-SEC
/s
s-1
/s
A reciprical unit of time for `reciprocal second` or `inverse second`. The `Per Second` is a unit of rate.
-- QUDT
T-1 L0 M0 I0 Θ0 N0 J0
FrequencyUnit
The class of units with dimensionality 'Frequency'.
FrequencyUnit
The class of units with dimensionality 'Frequency'.
Proton
A positive charged subatomic particle found in the atomic nucleus.
Proton
A positive charged subatomic particle found in the atomic nucleus.
https://en.wikipedia.org/wiki/Proton
1.0
0.0
KelvinPerKelvin
SI base unit kelvin divided by the SI base unit kelvin
-- QUDT
http://qudt.org/2.1/vocab/unit
Kelvin Per Kelvin
KelvinPerKelvin
http://qudt.org/vocab/unit/K-PER-K
K.K-1
K/K
SI base unit kelvin divided by the SI base unit kelvin
-- QUDT
FractionUnit
Quantities that are ratios of quantities of the same kind (for example length ratios and amount fractions) have the option of being expressed with units (m/m, mol/mol to aid the understanding of the quantity being expressed and also allow the use of SI prefixes, if this
is desirable (μm/m, nmol/mol).
-- SI Brochure
Unit for fractions of quantities of the same kind, to aid the understanding of the quantity being expressed.
RatioUnit
FractionUnit
Unit for fractions of quantities of the same kind, to aid the understanding of the quantity being expressed.
Time
One-dimensional subspace of space-time, which is locally orthogonal to space.
The indefinite continued progress of existence and events that occur in apparently irreversible succession from the past through the present to the future.
Time can be seen as the duration of an event or, more operationally, as "what clocks read".
Time
http://qudt.org/vocab/quantitykind/Time
One-dimensional subspace of space-time, which is locally orthogonal to space.
3-7
The indefinite continued progress of existence and events that occur in apparently irreversible succession from the past through the present to the future.
https://doi.org/10.1351/goldbook.T06375
Distance
Distance is the norm of Displacement.
Shortest path length between two points in a metric space.
Distance
https://qudt.org/vocab/quantitykind/Distance
https://www.wikidata.org/wiki/Q126017
https://www.electropedia.org/iev/iev.nsf/display?openform&ievref=102-03-24
https://dbpedia.org/page/Distance
3-1.8
Shortest path length between two points in a metric space.
https://en.wikipedia.org/wiki/Distance
Length
Extend of a spatial dimension.
Length is a non-negative additive quantity attributed to a one-dimensional object in space.
Length
http://qudt.org/vocab/quantitykind/Length
3-1.1
Extend of a spatial dimension.
https://doi.org/10.1351/goldbook.L03498
Auditory
'acoustical' refers to the perception mechanism of the observer that can occur through a microphone, a ear.
A 'Perceptual' which stands for a real world object whose spatiotemporal pattern makes it identifiable by an observer as a sound.
Sound
When we use the term 'sound' what are we referring to? The EMMO identifis a sound as the physical object that can be heard by the observer (more exactly, by the sensor of the observer).
In this sense, a sound (which is an acoustical object) is to be identified as the air region that manifests the sound wave and is able to be perceived by an observer. In case the wave is travelling through water or steel, then these other media regions are the sounds.
If the waveform is travelling through a cable as electronic signal (analog or digital) it is no more a sound, since it cannot be perceived by an observer as an acoustical object. This electrical waveform (or digital packet) is another physical that may stand for a sound if interpreted by a device (e.g. an amplifier, a DA converter).
Auditory
A 'Perceptual' which stands for a real world object whose spatiotemporal pattern makes it identifiable by an observer as a sound.
'acoustical' refers to the perception mechanism of the observer that can occur through a microphone, a ear.
ThermodynamicEfficiency
Performance measure of a device that uses thermal energy, expressed as the ratio of work done over thermal energy used.
ThermalEfficiency
ThermodynamicEfficiency
https://qudt.org/vocab/quantitykind/ThermalEfficiency
https://www.wikidata.org/wiki/Q1452104
5-25.1
Performance measure of a device that uses thermal energy, expressed as the ratio of work done over thermal energy used.
RatioQuantity
Quantities defined as ratios `Q=A/B` having equal dimensions in numerator and denominator are dimensionless quantities but still have a physical dimension defined as dim(A)/dim(B).
Johansson, Ingvar (2010). "Metrological thinking needs the notions of parametric quantities, units and dimensions". Metrologia. 47 (3): 219–230. doi:10.1088/0026-1394/47/3/012. ISSN 0026-1394.
The class of quantities that are the ratio of two quantities with the same physical dimensionality.
https://iopscience.iop.org/article/10.1088/0026-1394/47/3/012
refractive index,
volume fraction,
fine structure constant
RatioQuantity
http://qudt.org/vocab/quantitykind/DimensionlessRatio
The class of quantities that are the ratio of two quantities with the same physical dimensionality.
T-1 L-2 M0 I0 Θ0 N0 J0
PerAreaTimeUnit
The class of units with dimensionality 'PerAreaTime'.
PerAreaTimeUnit
The class of units with dimensionality 'PerAreaTime'.
MassNumber
Number of nucleons in an atomic nucleus.
AtomicMassNumber
NucleonNumber
MassNumber
http://qudt.org/vocab/quantitykind/MassNumber
Number of nucleons in an atomic nucleus.
PureNumberQuantity
A pure number, typically the number of something.
According to the SI brochure counting does not automatically qualify a quantity as an amount of substance.
This quantity is used only to describe the outcome of a counting process, without regard of the type of entities.
There are also some quantities that cannot be described in terms of the seven base quantities of the SI, but have the nature of a count. Examples are a number of molecules, a number of cellular or biomolecular entities (for example copies of a particular nucleic acid sequence), or degeneracy in quantum mechanics. Counting quantities are also quantities with the associated unit one.
1,
i,
π,
the number of protons in the nucleus of an atom
PureNumberQuantity
A pure number, typically the number of something.
N
NitrogenSymbol
The symbol that stands for the nitrogen atom.
NitrogenSymbol
The symbol that stands for the nitrogen atom.
Tool
An object that enables or facilitate an agent in the execution of a process that modifies the surrounding environment.
Tool
An object that enables or facilitate an agent in the execution of a process that modifies the surrounding environment.
9.0121831
4
BerylliumAtom
Atom subclass for beryllium.
BerylliumAtom
Atom subclass for beryllium.
CoefficientOfHeatTransfer
At a point on the surface separating two media with different thermodynamic temperatures, magnitude of the density of heat flow rate φ divided by the absolute value of temperature difference ΔT.
ThermalTransmittance
CoefficientOfHeatTransfer
https://qudt.org/vocab/quantitykind/CoefficientOfHeatTransfer
https://www.wikidata.org/wiki/Q634340
https://www.electropedia.org/iev/iev.nsf/display?openform&ievref=113-04-39
5-10.1
At a point on the surface separating two media with different thermodynamic temperatures, magnitude of the density of heat flow rate φ divided by the absolute value of temperature difference ΔT.
DisplacementVector
In condensed matter physics, position vector of an atom or ion relative to its equilibrium position.
DisplacementVector
https://qudt.org/vocab/quantitykind/DisplacementVectorOfIon
https://www.wikidata.org/wiki/Q105533558
12-7.3
In condensed matter physics, position vector of an atom or ion relative to its equilibrium position.
Displacement
vector quantity between any two points in space
Displacement
https://qudt.org/vocab/quantitykind/Displacement
https://www.wikidata.org/wiki/Q190291
https://www.electropedia.org/iev/iev.nsf/display?openform&ievref=113-01-29
https://dbpedia.org/page/Displacement_(geometry)
3-1.11
vector quantity between any two points in space
https://en.wikipedia.org/wiki/Displacement_(geometry)
Datum
A self-consistent encoded data entity.
A character, a bit, a song in a CD.
Datum
A self-consistent encoded data entity.
T+1 L-3 M0 I+1 Θ0 N0 J0
ElectricChargeDensityUnit
The class of units with dimensionality 'ElectricChargeDensity'.
ElectricChargeDensityUnit
The class of units with dimensionality 'ElectricChargeDensity'.
0.001
0.0
LitrePerSecondPerSquareMetre
Ventilation rate in Litres per second divided by the floor area
-- QUDT
http://qudt.org/2.1/vocab/unit
Litre Per Second Per Square Metre
LitrePerSecondPerSquareMetre
http://qudt.org/vocab/unit/L-PER-SEC-M2
L/(m²⋅s)
Ventilation rate in Litres per second divided by the floor area
-- QUDT
1e-06
0.0
CubicCentiMetrePerCubicMetre
volume ratio consisting of the 0.000 001-fold of the power of the SI base unit metre with the exponent 3 divided by the power of the SI base unit metre with the exponent 3
-- QUDT
http://qudt.org/2.1/vocab/unit
Cubic Centimetre Per Cubic Metre
CubicCentiMetrePerCubicMetre
http://qudt.org/vocab/unit/CentiM3-PER-M3
cm3.m-3
cm3/m3
cm³/m³
volume ratio consisting of the 0.000 001-fold of the power of the SI base unit metre with the exponent 3 divided by the power of the SI base unit metre with the exponent 3
-- QUDT
VolumeFractionUnit
Unit for quantities of dimension one that are the fraction of two volumes.
Unit for volume fraction.
VolumeFractionUnit
Unit for quantities of dimension one that are the fraction of two volumes.
Determination
A 'Semiosis' that involves an 'Observer' that perceives another 'Physical' (the 'Object') through a specific perception mechanism and produces a 'Property' (the 'Sign') that stands for the result of that particular perception according to a well defined conventional procedure.
Characterisation
Assigning the word "red" as sign for an object provides an information to all other interpreters about the outcome of a specific observation procedure according to the determiner.
Determination
A 'Semiosis' that involves an 'Observer' that perceives another 'Physical' (the 'Object') through a specific perception mechanism and produces a 'Property' (the 'Sign') that stands for the result of that particular perception according to a well defined conventional procedure.
0.0
1.0
NewtonMetrePerKilogram
product of the derived SI unit newton and the SI base unit metre divided by the SI base unit kilogram
-- QUDT
http://qudt.org/2.1/vocab/unit
Newton Metre Per Kilogram
NewtonMetrePerKilogram
http://qudt.org/vocab/unit/N-M-PER-KiloGM
N.m.kg-1
N⋅m/kg
product of the derived SI unit newton and the SI base unit metre divided by the SI base unit kilogram
-- QUDT
T-2 L+2 M0 I0 Θ0 N0 J0
AbsorbedDoseUnit
The class of units with dimensionality 'AbsorbedDose'.
AbsorbedDoseUnit
The class of units with dimensionality 'AbsorbedDose'.
KnownConstant
A variable that stand for a well known numerical constant (a known number).
π refers to the constant number ~3.14
KnownConstant
A variable that stand for a well known numerical constant (a known number).
Numerical
A 'Mathematical' that has no unknown value, i.e. all its 'Variable"-s parts refers to a 'Number' (for scalars that have a built-in datatype) or to another 'Numerical' (for complex numerical data structures that should rely on external implementations).
Numerical
A 'Mathematical' that has no unknown value, i.e. all its 'Variable"-s parts refers to a 'Number' (for scalars that have a built-in datatype) or to another 'Numerical' (for complex numerical data structures that should rely on external implementations).
Constant
A variable that stand for a numerical constant, even if it is unknown.
Constant
A variable that stand for a numerical constant, even if it is unknown.
Os
OsmiumSymbol
The symbol that stands for the osmium atom.
OsmiumSymbol
The symbol that stands for the osmium atom.
PlasticSintering
PlasticSintering
Sintering
Sintering is the process of forming a solid mass of material through heat and pressure without melting to the point of liquefaction. This process involves the atoms in materials diffusing across the particle boundaries and fusing together into one piece.
Sintering occurs naturally in mineral deposits, and is used as a manufacturing process for materials including ceramics, metals and plastics.
Because the sintering temperature doesn’t reach the materials’ melting point, it is often used for materials with high melting points, such as molybdenum and tungsten.
ISO 3252:2019 Powder metallurgy
sintering: thermal treatment of a powder or compact, at a temperature below the melting point of the main constituent, for the purpose of increasing its strength by the metallurgical bonding of its particles
ISO/ASTM TR 52906:2022 Additive manufacturing
sintering: process of heating a powder metal compact to increase density and/or improve mechanical properties via solid state diffusion
https://www.twi-global.com/technical-knowledge/faqs/what-is-sintering
Sintern
Sintering
Sintering is the process of forming a solid mass of material through heat and pressure without melting to the point of liquefaction. This process involves the atoms in materials diffusing across the particle boundaries and fusing together into one piece.
Sintering occurs naturally in mineral deposits, and is used as a manufacturing process for materials including ceramics, metals and plastics.
Because the sintering temperature doesn’t reach the materials’ melting point, it is often used for materials with high melting points, such as molybdenum and tungsten.
1e+18
E
Exa
SI prefix who's value is 1e18.
Exa
SI prefix who's value is 1e18.
Interpreter
The entity (or agent, or observer, or cognitive entity) who connects 'Sign', 'Interpretant' and 'Object'.
The interpreter is not the ontologist, being the ontologist acting outside the ontology at the meta-ontology level.
On the contrary, the interpreter is an agent recognized by the ontologist. The semiotic branch of the EMMO is the tool used by the ontologist to represent an interpreter's semiotic activity.
For example, the ontologist may be interest in cataloguing in the EMMO how the same object (e.g. a cat) is addressed using different signs (e.g. cat, gatto, chat) by different interpreters (e.g. english, italian or french people).
The same applies for the results of measurements: the ontologist may be interest to represent in the EMMO how different measurement processes (i.e. semiosis) lead to different quantitative results (i.e. signs) according to different measurement devices (i.e. interpreters).
Interpreter
The entity (or agent, or observer, or cognitive entity) who connects 'Sign', 'Interpretant' and 'Object'.
The interpreter is not the ontologist, being the ontologist acting outside the ontology at the meta-ontology level.
On the contrary, the interpreter is an agent recognized by the ontologist. The semiotic branch of the EMMO is the tool used by the ontologist to represent an interpreter's semiotic activity.
MagneticFluxDensity
Often denoted B.
Strength of the magnetic field.
MagneticInduction
MagneticFluxDensity
http://qudt.org/vocab/quantitykind/MagneticFluxDensity
https://www.wikidata.org/wiki/Q30204
https://www.electropedia.org/iev/iev.nsf/display?openform&ievref=121-11-19
6-21
Strength of the magnetic field.
https://doi.org/10.1351/goldbook.M03686
ElectromagneticQuantity
Quantities categorised according to ISO 80000-6.
ElectromagneticQuantity
Quantities categorised according to ISO 80000-6.
Hardening
Heat treatment process that generally produces martensite in the matrix.
Hardening
Heat treatment process that generally produces martensite in the matrix.
10.0
DecaPrefixedUnit
Superclass for all units prefixed with "deca" (10).
DekaPrefixedUnit
DecaPrefixedUnit
Superclass for all units prefixed with "deca" (10).
T+3 L0 M-1 I0 Θ+1 N0 J0
PerThermalTransmittanceUnit
The class of units with dimensionality 'PerThermalTransmittance'.
PerThermalTransmittanceUnit
The class of units with dimensionality 'PerThermalTransmittance'.
T+3 L-2 M-1 I0 Θ0 N0 J+1
LuminousEfficacyUnit
The class of units with dimensionality 'LuminousEfficacy'.
LuminousEfficacyUnit
The class of units with dimensionality 'LuminousEfficacy'.
T-1 L+3 M0 I-1 Θ0 N0 J0
ReciprocalElectricChargeDensityUnit
The class of units with dimensionality 'ReciprocalElectricChargeDensity'.
ReciprocalElectricChargeDensityUnit
The class of units with dimensionality 'ReciprocalElectricChargeDensity'.
0.0
1000.0
BecquerelPerLitre
One radioactive disintegration per second from a one part in 10**3 of the SI unit of volume (cubic metre).
-- QUDT
http://qudt.org/2.1/vocab/unit
Becquerels per litre
BecquerelPerLitre
http://qudt.org/vocab/unit/BQ-PER-L
Bq.L-1
Bq/L
One radioactive disintegration per second from a one part in 10**3 of the SI unit of volume (cubic metre).
-- QUDT
1e-06
0.0
MicroLitrePerLitre
volume ratio as 0.000001-fold of the unit litre divided by the unit litre
-- QUDT
http://qudt.org/2.1/vocab/unit
Microlitre Per Litre
MicroLitrePerLitre
http://qudt.org/vocab/unit/MicroL-PER-L
uL.L-1
uL/L
μL/L
volume ratio as 0.000001-fold of the unit litre divided by the unit litre
-- QUDT
0.01745329
0.0
DegreePerMetre
A change of angle in one SI unit of length.
-- QUDT
http://qudt.org/2.1/vocab/unit
Degrees per metre
DegreePerMetre
http://qudt.org/vocab/unit/DEG-PER-M
deg.m-1
°/m
A change of angle in one SI unit of length.
-- QUDT
T0 L-1 M0 I0 Θ0 N0 J0
ReciprocalLengthUnit
The class of units with dimensionality 'ReciprocalLength'.
ReciprocalLengthUnit
The class of units with dimensionality 'ReciprocalLength'.
1.0
0.0
PerCubicMetreSecond
Per cubic metre and second.
http://qudt.org/2.1/vocab/unit
PerCubicMetreSecond
http://qudt.org/vocab/unit/PER-M3-SEC
m-3.s-1
/(m³⋅s)
Per cubic metre and second.
3600.0
0.0
LuxHour
The SI unit for measuring the illumination (illuminance) of a surface. One lux is defined as an illumination of one lumen per square meter or 0.0001 phot. In considering the various light units, it's useful to think about light originating at a point and shining upon a surface. The intensity of the light source is measured in candelas; the total light flux in transit is measured in lumens (1 lumen = 1 candelau00b7steradian); and the amount of light received per unit of surface area is measured in lux (1 lux = 1 lumen/square meter). One lux is equal to approximately 0.09290 foot candle.
-- QUDT
http://qudt.org/2.1/vocab/unit
Lux Hour
LuxHour
http://qudt.org/vocab/unit/LUX-HR
lx.h
lx⋅hr
The SI unit for measuring the illumination (illuminance) of a surface. One lux is defined as an illumination of one lumen per square meter or 0.0001 phot. In considering the various light units, it's useful to think about light originating at a point and shining upon a surface. The intensity of the light source is measured in candelas; the total light flux in transit is measured in lumens (1 lumen = 1 candelau00b7steradian); and the amount of light received per unit of surface area is measured in lux (1 lux = 1 lumen/square meter). One lux is equal to approximately 0.09290 foot candle.
-- QUDT
http://en.wikipedia.org/wiki/Lux?oldid=494700274
T+1 L-2 M0 I0 Θ0 N0 J+1
IlluminanceTimeUnit
The class of units with dimensionality 'IlluminanceTime'.
IlluminanceTimeUnit
The class of units with dimensionality 'IlluminanceTime'.
1.0
0.0
NewtonMetreSecondPerRadian
Newton metre seconds measured per radian
-- QUDT
http://qudt.org/2.1/vocab/unit
Newton metre seconds per radian
NewtonMetreSecondPerRadian
http://qudt.org/vocab/unit/N-M-SEC-PER-RAD
N⋅m⋅s/rad
Newton metre seconds measured per radian
-- QUDT
T-1 L+2 M+1 I0 Θ0 N0 J0
AngularMomentumUnit
The class of units with dimensionality 'AngularMomentum'.
AngularMomentumUnit
The class of units with dimensionality 'AngularMomentum'.
0.001
0.0
PerKiloMetre
Per Kilometer Unit is a denominator unit with dimensions /km.
-- QUDT
http://qudt.org/2.1/vocab/unit
ReciprocalKiloMetre
PerKiloMetre
http://qudt.org/vocab/unit/PER-KiloM
/km
km-1
/km
Per Kilometer Unit is a denominator unit with dimensions /km.
-- QUDT
Perspective
The class of causal objects that stand for world objects according to a specific representational perspective.
This class is the practical implementation of the EMMO pluralistic approach for which the only objective categorization is provided by the Universe individual and all the Quantum individuals.
Between these two extremes, there are several subjective ways to categorize real world objects, each one provide under a 'Perspective' subclass.
Perspective
The class of causal objects that stand for world objects according to a specific representational perspective.
This class is the practical implementation of the EMMO pluralistic approach for which the only objective categorization is provided by the Universe individual and all the Quantum individuals.
Between these two extremes, there are several subjective ways to categorize real world objects, each one provide under a 'Perspective' subclass.
1.0
0.0
CubicMetrePerKilogramSquareSecond
Cubic metre per kilogram and square second.
http://qudt.org/2.1/vocab/unit
CubicMetrePerKilogramSquareSecond
http://qudt.org/vocab/unit/M3-PER-KiloGM-SEC2
m3.(kg.s2)-1
m3.kg-1.s-2
m3/(kg.s2)
m³/(kg⋅s²)
Cubic metre per kilogram and square second.
T-2 L+3 M-1 I0 Θ0 N0 J0
NewtonianConstantOfGravityUnit
The class of units with dimensionality 'NewtonianConstantOfGravity'.
NewtonianConstantOfGravityUnit
The class of units with dimensionality 'NewtonianConstantOfGravity'.
LaserCutting
LaserCutting
ThermalCutting
Thermal ablation is the separation of material particles in solid, liquid or gaseous state by heat processes as well as the removal of these material particles by mechanical or electromagnetic forces (from: DIN
Thermisches Abtragen
ThermalCutting
Thermal ablation is the separation of material particles in solid, liquid or gaseous state by heat processes as well as the removal of these material particles by mechanical or electromagnetic forces (from: DIN
Icon
A sign that stands for an object by resembling or imitating it, in shape, function or by sharing a similar logical structure.
If object and sign belongs to the same class, then the sign is fuctional, diagrammatic and resemblance.
For example, when a Boeing 747 is used as a sign for another Boeing 747.
In Peirce semiotics three subtypes of icon are possible:
(a) the image, which depends on a simple quality (e.g. picture)
(b) the diagram, whose internal relations, mainly dyadic or so taken, represent by analogy the relations in something (e.g. math formula, geometric flowchart)
(c) the metaphor, which represents the representative character of a sign by representing a parallelism in something else
[Wikipedia]
Model
Simulacrum
A picture that reproduces the aspect of a person.
An equation that reproduces the logical connection of the properties of a physical entity.
Icon
A sign that stands for an object by resembling or imitating it, in shape, function or by sharing a similar logical structure.
PhysicalParticle
A well defined physical entity, elementary or composite, usually treated as a singular unit, that is found at scales spanning from the elementary particles to molecules, as fundamental constituents of larger scale substances (as the etymology of "particle" suggests).
The scope of the physical particle definition goes from the elementary particles to molecules, as fundamental constituents of substances.
The union of hadron and lepton, or fermion and bosons.
Particle
PhysicalParticle
The union of hadron and lepton, or fermion and bosons.
A well defined physical entity, elementary or composite, usually treated as a singular unit, that is found at scales spanning from the elementary particles to molecules, as fundamental constituents of larger scale substances (as the etymology of "particle" suggests).
The scope of the physical particle definition goes from the elementary particles to molecules, as fundamental constituents of substances.
SIAcceptedUnit
Non-SI units mentioned in the SI.
This is a list of units that are not defined as part of the International System of Units (SI), but are otherwise mentioned in the SI brouchure, because either the General Conference on Weights and Measures (CGPM) accepts their use as being multiples or submultiples of SI-units, they have important contemporary application worldwide, or are otherwise commonly encountered worldwide.
SIAcceptedUnit
Non-SI units mentioned in the SI.
https://en.wikipedia.org/wiki/Non-SI_units_mentioned_in_the_SI
SpecialUnit
A unit symbol that stands for a derived unit.
Special units are semiotic shortcuts to more complex composed symbolic objects.
Pa stands for N/m2
J stands for N m
SpecialUnit
A unit symbol that stands for a derived unit.
ElectricInductance
A property of an electrical conductor by which a change in current through it induces an electromotive force in both the conductor itself and in any nearby conductors by mutual inductance.
Inductance
ElectricInductance
http://qudt.org/vocab/quantitykind/Inductance
https://www.wikidata.org/wiki/Q177897
https://www.electropedia.org/iev/iev.nsf/display?openform&ievref=131-12-19
6-41.1
A property of an electrical conductor by which a change in current through it induces an electromotive force in both the conductor itself and in any nearby conductors by mutual inductance.
https://doi.org/10.1351/goldbook.M04076
T
Tesla
SI unit for magnetic flux density or induction.
The SI unit of flux density (or field intensity) for magnetic fields (also called the magnetic induction). The intensity of a magnetic field can be measured by placing a current-carrying conductor in the field. The magnetic field exerts a force on the conductor, a force which depends on the amount of the current and on the length of the conductor. One tesla is defined as the field intensity generating one newton of force per ampere of current per meter of conductor. Equivalently, one tesla represents a magnetic flux density of one weber per square meter of area. A field of one tesla is quite strong: the strongest fields available in laboratories are about 20 teslas, and the Earth's magnetic flux density, at its surface, is about 50 microteslas. The tesla, defined in 1958, honors the Serbian-American electrical engineer Nikola Tesla (1856-1943), whose work in electromagnetic induction led to the first practical generators and motors using alternating current.
-- QUDT
Tesla
D33
http://qudt.org/vocab/unit/T
T
http://dbpedia.org/resource/Tesla
SI unit for magnetic flux density or induction.
T = V·s·m⁻² = N/(A·m) = Wb/m
The SI unit of flux density (or field intensity) for magnetic fields (also called the magnetic induction). The intensity of a magnetic field can be measured by placing a current-carrying conductor in the field. The magnetic field exerts a force on the conductor, a force which depends on the amount of the current and on the length of the conductor. One tesla is defined as the field intensity generating one newton of force per ampere of current per meter of conductor. Equivalently, one tesla represents a magnetic flux density of one weber per square meter of area. A field of one tesla is quite strong: the strongest fields available in laboratories are about 20 teslas, and the Earth's magnetic flux density, at its surface, is about 50 microteslas. The tesla, defined in 1958, honors the Serbian-American electrical engineer Nikola Tesla (1856-1943), whose work in electromagnetic induction led to the first practical generators and motors using alternating current.
-- QUDT
http://en.wikipedia.org/wiki/Tesla_(unit)
https://doi.org/10.1351/goldbook.T06283
T-2 L0 M+1 I-1 Θ0 N0 J0
MagneticFluxDensityUnit
The class of units with dimensionality 'MagneticFluxDensity'.
MagneticFluxDensityUnit
The class of units with dimensionality 'MagneticFluxDensity'.
T-6 L+4 M+2 I-2 Θ0 N0 J0
LorenzNumberUnit
The class of units with dimensionality 'LorenzNumber'.
LorenzNumberUnit
The class of units with dimensionality 'LorenzNumber'.
VolumeFlowRate
Quantity equal to the volume dV of substance crossing a given surface during a time interval with infinitesimal duration dt, divided by this duration, thus qV = dV / dt-
VolumetricFlowRate
VolumeFlowRate
https://qudt.org/vocab/quantitykind/VolumeFlowRate
https://www.wikidata.org/wiki/Q1134348
https://www.electropedia.org/iev/iev.nsf/display?openform&ievref=113-03-72
4-31
Quantity equal to the volume dV of substance crossing a given surface during a time interval with infinitesimal duration dt, divided by this duration, thus qV = dV / dt-
https://en.wikipedia.org/wiki/Volumetric_flow_rate
CoefficientOfFriction
Dimensionless scalar value which describes the ratio of the force of friction between two bodies and the force pressing them together; depends on the materials used, ranges from near zero to greater than one.
FrictionCoefficient
FrictionFactor
CoefficientOfFriction
https://www.wikidata.org/wiki/Q1932524
Dimensionless scalar value which describes the ratio of the force of friction between two bodies and the force pressing them together; depends on the materials used, ranges from near zero to greater than one.
https://doi.org/10.1351/goldbook.F02530
ProductionSystem
A network of objects that implements a production process through a series of interconnected elements.
ProductionSystem
A network of objects that implements a production process through a series of interconnected elements.
Network
A system whose is mainly characterised by the way in which elements are interconnected.
Network
A system whose is mainly characterised by the way in which elements are interconnected.
T0 L0 M-1 I+1 Θ0 N0 J0
ElectricCurrentPerMassUnit
The class of units with dimensionality 'ElectricCurrentPerMass'.
ElectricCurrentPerMassUnit
The class of units with dimensionality 'ElectricCurrentPerMass'.
1000.0
0.0
CubicDecaMetre
1 000-fold of the power of the SI base unit metre by exponent 3
-- QUDT
http://qudt.org/2.1/vocab/unit
Cubic Decametre
CubicDecaMetre
http://qudt.org/vocab/unit/DecaM3
dam3
dam³
1 000-fold of the power of the SI base unit metre by exponent 3
-- QUDT
T0 L+3 M0 I0 Θ0 N0 J0
VolumeUnit
The class of units with dimensionality 'Volume'.
VolumeUnit
The class of units with dimensionality 'Volume'.
ISO80000Categorised
ISO80000Categorised
0.0
°
0.01745329
Degree
A degree (in full, a degree of arc, arc degree, or arcdegree), usually denoted by ° (the degree symbol), is a measurement of plane angle, representing 1/360 of a full rotation; one degree is equivalent to 2π /360 rad, 0.017453 rad. It is not an SI unit, as the SI unit for angles is radian, but is an accepted SI unit.
-- QUDT
Degree is a measurement of plane angle, defined by representing a full rotation as 360 degrees.
Degree
DD
http://qudt.org/vocab/unit/DEG
deg
http://dbpedia.org/page/Degree_(angle)
Degree is a measurement of plane angle, defined by representing a full rotation as 360 degrees.
A degree (in full, a degree of arc, arc degree, or arcdegree), usually denoted by ° (the degree symbol), is a measurement of plane angle, representing 1/360 of a full rotation; one degree is equivalent to 2π /360 rad, 0.017453 rad. It is not an SI unit, as the SI unit for angles is radian, but is an accepted SI unit.
-- QUDT
https://doi.org/10.1351/goldbook.D01560
LengthFractionUnit
Unit for quantities of dimension one that are the fraction of two lengths.
Unit for plane angle.
LengthFractionUnit
Unit for quantities of dimension one that are the fraction of two lengths.
1e-06
0.0
MicroNewtonMetre
0.000001-fold of the product out of the derived SI newton and the SI base unit metre
-- QUDT
http://qudt.org/2.1/vocab/unit
Micronewton Metre
MicroNewtonMetre
http://qudt.org/vocab/unit/MicroN-M
uN.m
μN⋅m
0.000001-fold of the product out of the derived SI newton and the SI base unit metre
-- QUDT
T-2 L+2 M+1 I0 Θ0 N0 J0
EnergyUnit
The class of units with dimensionality 'Energy'.
EnergyUnit
The class of units with dimensionality 'Energy'.
Bh
BohriumSymbol
The symbol that stands for the bohrium atom.
BohriumSymbol
The symbol that stands for the bohrium atom.
TotalMassStoppingPower
Quotient of the total linear stopping power S and the mass density ρ of the material.
MassStoppingPower
TotalMassStoppingPower
https://qudt.org/vocab/quantitykind/TotalMassStoppingPower
https://www.wikidata.org/wiki/Q98642795
https://www.electropedia.org/iev/iev.nsf/display?openform&ievref=881-12-52
10-55
Quotient of the total linear stopping power S and the mass density ρ of the material.
FlexuralForming
Forming of a solid body, whereby the plastic state is essentially brought about by a bending stress.
Biegeumformen
FlexuralForming
ReshapeManufacturing
A manufacturing in which workpieces are produced from solid raw parts through permanent deformation, provided that neither material is added nor removed.
The mass of the raw part is equal to the mass of the finished part.
DIN 8580:2020
Umformen
Forming
ReshapeManufacturing
A manufacturing in which workpieces are produced from solid raw parts through permanent deformation, provided that neither material is added nor removed.
The mass of the raw part is equal to the mass of the finished part.
0.0
1.0
NewtonPerRadian
A one-newton force applied for one angle/torsional torque
-- QUDT
http://qudt.org/2.1/vocab/unit
Newton per radian
NewtonPerRadian
http://qudt.org/vocab/unit/N-PER-RAD
N/rad
A one-newton force applied for one angle/torsional torque
-- QUDT
T-2 L+1 M+1 I0 Θ0 N0 J0
ForceUnit
The class of units with dimensionality 'Force'.
ForceUnit
The class of units with dimensionality 'Force'.
Status
An object which is an holistic temporal part of a process.
State
A semi-naked man is a status in the process of a man's dressing.
Status
An object which is an holistic temporal part of a process.
TemporalRole
An holistic temporal part of a whole.
HolisticTemporalPart
TemporalRole
An holistic temporal part of a whole.
Object
An item can be classified as an object according to a type ϕ (a ϕ-object) if it's a ϕ all its temporal item parts are also of type ϕ. This conceptualisation tries to catch the persistency of type in the temporal parts of an entity.
Indefinitely temporally slicing of an entity leads to temporal parts whose temporal extension is so small that the connectivity relations that define the entity as an item will no longer hold. More generally. a temporal part is no more of type ϕ when the temporal interval is lower than the interval that characterizes the causality interactions between the object parts.
In other terms, if the time span of a temporal part is lower than the inverse of the frequency of interactions between the constituents, then the constituents in such temporal part are not connected. The object is no more an object, neither an item, but simply a collection of fundamental quantum parts.
For this reason, the definition of object is done by considering only item temporal parts, meaning that slicing in time has the lower limit of a self-connected (i.e. item) entity.
The superclass for causal structure classes whose individuals have all temporal item parts of the same type of the whole.
Continuant
Endurant
Practically speaking, the Object class can be populated by primitive subclasses (e.g. Car) for each of which holds the axiom that all the item parts are of the same type of the whole (e.g. Car SubClassOf hasTemporalItemPart only Car).
The intended usage is not for an individual to belong directly to Object, but to belong to a specific subclass of Object that identifies entities with a type-persistent structure.
Object
An item can be classified as an object according to a type ϕ (a ϕ-object) if it's a ϕ all its temporal item parts are also of type ϕ. This conceptualisation tries to catch the persistency of type in the temporal parts of an entity.
The superclass for causal structure classes whose individuals have all temporal item parts of the same type of the whole.
Indefinitely temporally slicing of an entity leads to temporal parts whose temporal extension is so small that the connectivity relations that define the entity as an item will no longer hold. More generally. a temporal part is no more of type ϕ when the temporal interval is lower than the interval that characterizes the causality interactions between the object parts.
In other terms, if the time span of a temporal part is lower than the inverse of the frequency of interactions between the constituents, then the constituents in such temporal part are not connected. The object is no more an object, neither an item, but simply a collection of fundamental quantum parts.
For this reason, the definition of object is done by considering only item temporal parts, meaning that slicing in time has the lower limit of a self-connected (i.e. item) entity.
1.0
0.0
NewtonSecondPerCubicMetre
The SI unit of specific acoustic impedance. When sound waves pass through any physical substance the pressure of the waves causes the particles of the substance to move. The sound specific impedance is the ratio between the sound pressure and the particle velocity it produces. The specific impedance is 1 N · s · m⁻³ if unit pressure produces unit velocity.
-- QUDT
http://qudt.org/2.1/vocab/unit
Newton second per Cubic Metre
NewtonSecondPerCubicMetre
http://qudt.org/vocab/unit/N-SEC-PER-M3
N.s.m-3
N⋅s/m³
The SI unit of specific acoustic impedance. When sound waves pass through any physical substance the pressure of the waves causes the particles of the substance to move. The sound specific impedance is the ratio between the sound pressure and the particle velocity it produces. The specific impedance is 1 N · s · m⁻³ if unit pressure produces unit velocity.
-- QUDT
T-1 L-2 M+1 I0 Θ0 N0 J0
MassFluxUnit
The class of units with dimensionality 'MassFlux'.
MassFluxUnit
The class of units with dimensionality 'MassFlux'.
FormingJoin
FormingJoin
JoinManufacturing
The permanent joining or other bringing together of two or more workpieces of a geometric shape or of similar workpieces with shapeless material. In each case, the cohesion is created locally and increased as a whole.
A manufacturing involving the creation of long-term connection of several workpieces.
DIN 8580:2020
Fügen
JoinManufacturing
A manufacturing involving the creation of long-term connection of several workpieces.
FineStructureConstant
A fundamental physical constant characterizing the strength of the electromagnetic interaction between elementary charged particles.
FineStructureConstant
http://qudt.org/vocab/constant/FineStructureConstant
https://doi.org/10.1351/goldbook.F02389
MeasuredConstant
For a given unit system, measured constants are physical constants that are not used to define the unit system. Hence, these constants have to be measured and will therefore be associated with an uncertainty.
MeasuredConstant
For a given unit system, measured constants are physical constants that are not used to define the unit system. Hence, these constants have to be measured and will therefore be associated with an uncertainty.
AtomicMass
Since the nucleus account for nearly all of the total mass of atoms (with the electrons and nuclear binding energy making minor contributions), the atomic mass measured in Da has nearly the same value as the mass number.
The atomic mass is often expressed as an average of the commonly found isotopes.
The mass of an atom in the ground state.
AtomicMass
The mass of an atom in the ground state.
10-4.1
https://en.wikipedia.org/wiki/Atomic_mass
https://doi.org/10.1351/goldbook.A00496
Mass
Property of a physical body that express its resistance to acceleration (a change in its state of motion) when a force is applied.
Mass
http://qudt.org/vocab/quantitykind/Mass
4-1
Property of a physical body that express its resistance to acceleration (a change in its state of motion) when a force is applied.
https://doi.org/10.1351/goldbook.M03709
1.0
0.0
JoulePerMoleKelvin
Energy needed to heat one mole of substance by 1 Kelvin, under standard conditions (not standard temperature and pressure STP). The standard molar entropy is usually given the symbol S, and has units of joules per mole kelvin ( J· mol⁻¹ K⁻¹). Unlike standard enthalpies of formation, the value of S is an absolute. That is, an element in its standard state has a nonzero value of S at room temperature.
-- QUDT
http://qudt.org/2.1/vocab/unit
Joule per Mole Kelvin
JoulePerMoleKelvin
http://qudt.org/vocab/unit/J-PER-MOL-K
J.mol-1.K-1
J/(mol⋅K)
Energy needed to heat one mole of substance by 1 Kelvin, under standard conditions (not standard temperature and pressure STP). The standard molar entropy is usually given the symbol S, and has units of joules per mole kelvin ( J· mol⁻¹ K⁻¹). Unlike standard enthalpies of formation, the value of S is an absolute. That is, an element in its standard state has a nonzero value of S at room temperature.
-- QUDT
T-2 L+2 M+1 I0 Θ-1 N-1 J0
EntropyPerAmountUnit
The class of units with dimensionality 'EntropyPerAmount'.
EntropyPerAmountUnit
The class of units with dimensionality 'EntropyPerAmount'.
1e-06
0.0
CubicCentiMetrePerMole
0.000 001-fold of the power of the SI base unit metre with the exponent 3 divided by the SI base unit mol
-- QUDT
http://qudt.org/2.1/vocab/unit
Cubic Centimetre Per Mole
CubicCentiMetrePerMole
http://qudt.org/vocab/unit/CentiM3-PER-MOL
cm3.mol-1
cm3/mol
cm³/mol
0.000 001-fold of the power of the SI base unit metre with the exponent 3 divided by the SI base unit mol
-- QUDT
T0 L+3 M0 I0 Θ0 N-1 J0
VolumePerAmountUnit
The class of units with dimensionality 'VolumePerAmount'.
VolumePerAmountUnit
The class of units with dimensionality 'VolumePerAmount'.
Wavenumber
Reciprocal of the wavelength.
Repetency
Wavenumber
https://qudt.org/vocab/quantitykind/Wavenumber
https://www.wikidata.org/wiki/Q192510
https://www.electropedia.org/iev/iev.nsf/display?openform&ievref=103-10-11
https://dbpedia.org/page/Wavenumber
3-20
Reciprocal of the wavelength.
https://en.wikipedia.org/wiki/Wavenumber
https://doi.org/10.1351/goldbook.W06664
ReciprocalLength
The inverse of length.
InverseLength
ReciprocalLength
http://qudt.org/vocab/quantitykind/InverseLength
The inverse of length.
https://en.wikipedia.org/wiki/Reciprocal_length
1e-09
0.0
MicroGram
0.000000001-fold of the SI base unit kilogram
-- QUDT
http://qudt.org/2.1/vocab/unit
MicroGram
http://qudt.org/vocab/unit/MicroGM
ug
μg
0.000000001-fold of the SI base unit kilogram
-- QUDT
T0 L0 M+1 I0 Θ0 N0 J0
MassUnit
The class of units with dimensionality 'Mass'.
MassUnit
The class of units with dimensionality 'Mass'.
Participant
An object which is an holistic spatial part of a process.
A student during an examination.
Participant
An object which is an holistic spatial part of a process.
VolumeFraction
Volume of a constituent of a mixture divided by the sum of volumes of all constituents prior to mixing.
VolumeFraction
http://qudt.org/vocab/quantitykind/VolumeFraction
9-14
Volume of a constituent of a mixture divided by the sum of volumes of all constituents prior to mixing.
https://doi.org/10.1351/goldbook.V06643
Intensive
A quantity whose magnitude is independent of the size of the system.
Note that not all physical quantities can be categorised as being either intensive or extensive. For example the square root of the mass.
Temperature
Density
Pressure
ChemicalPotential
Intensive
A quantity whose magnitude is independent of the size of the system.
1.0
0.0
JoulePerKilogram
Joule Per Kilogram} (J/kg) is a unit in the category of Thermal heat capacity. It is also known as `joule/kilogram`, `joules per kilogram`. This unit is commonly used in the SI unit system. The unit has a dimension of L2T⁻² where L is length, and T is time. This unit is the standard SI unit in this category.
-- QUDT
http://qudt.org/2.1/vocab/unit
Joule per Kilogram
JoulePerKilogram
http://qudt.org/vocab/unit/J-PER-KiloGM
J.kg-1
J/kg
J/kg
Joule Per Kilogram} (J/kg) is a unit in the category of Thermal heat capacity. It is also known as `joule/kilogram`, `joules per kilogram`. This unit is commonly used in the SI unit system. The unit has a dimension of L2T⁻² where L is length, and T is time. This unit is the standard SI unit in this category.
-- QUDT
DoubleData
A symbolic data representing a 64-bit floating point numbers incl. ±Inf, ±0, NaN.
https://www.w3.org/TR/2012/REC-xmlschema11-2-20120405/datatypes.html#double
DoubleData
A symbolic data representing a 64-bit floating point numbers incl. ±Inf, ±0, NaN.
FloatingPointData
A symbolic data representing a numerical floating point value.
FloatingPointData
A symbolic data representing a numerical floating point value.
RecombinationCoefficient
Coefficient in the law of recombination,
RecombinationCoefficient
https://qudt.org/vocab/quantitykind/RecombinationCoefficient
https://www.wikidata.org/wiki/Q98842099
https://www.electropedia.org/iev/iev.nsf/display?openform&ievref=113-06-47
10-63
Coefficient in the law of recombination,
1e-09
0.0
MicroLitre
0.000001-fold of the unit litre
-- QUDT
http://qudt.org/2.1/vocab/unit
MicroLitre
http://qudt.org/vocab/unit/MicroL
uL
μL
0.000001-fold of the unit litre
-- QUDT
Ar
ArgonSymbol
The symbol that stands for the argon atom.
ArgonSymbol
The symbol that stands for the argon atom.
T-2 L+4 M0 I0 Θ0 N0 J0
MassStoppingPowerUnit
The class of units with dimensionality 'MassStoppingPower'.
MassStoppingPowerUnit
The class of units with dimensionality 'MassStoppingPower'.
OrdinaryMatter
Matter composed of only matter particles, excluding anti-matter particles.
OrdinaryMatter
Matter composed of only matter particles, excluding anti-matter particles.
CategorizedPhysicalQuantity
The superclass for all physical quantities classes that are categorized according to some domain of interests (e.g. metallurgy, chemistry), property (intensive/extensive) or application.
https://physics.nist.gov/cuu/Constants
CategorizedPhysicalQuantity
The superclass for all physical quantities classes that are categorized according to some domain of interests (e.g. metallurgy, chemistry), property (intensive/extensive) or application.
DefinedEdgeCutting
Machining in which a tool is used whose number of cutting edges, geometry of the cutting wedges and position of the cutting edges in relation to the workpiece are determined
Spanen mit geometrisch bestimmten Schneiden
DefinedEdgeCutting
1.0
0.0
RadianPerMetre
Radian per metre.
http://qudt.org/2.1/vocab/unit
http://www.iso.org/iso/catalogue_detail?csnumber=31897
RadianPerMetre
http://qudt.org/vocab/unit/RAD-PER-M
rad.m-1
rad/m
Radian per metre.
T-1 L+3 M0 I0 Θ0 N-1 J0
VolumePerAmountTimeUnit
The class of units with dimensionality 'VolumePerAmountTime'.
VolumePerAmountTimeUnit
The class of units with dimensionality 'VolumePerAmountTime'.
Holistic
A perspective characterized by the belief that:
- a whole is more than merely the sum of its parts (wholism)
- the parts of a whole are interconnected in a way that can be explained only by reference to the whole (rolism).
An holistic perspective considers each part of the whole as equally important, without the need to position the parts within a hierarchy (in time or space). The interest is on the whole object and on its parts (how they contribute to the whole, i.e. their roles), without going further into specifying the spatial hierarchy or the temporal position of each part.
This class allows the picking of parts without necessarily going trough a rigid hierarchy of spatial compositions (e.g. body -> organ -> cell -> molecule) or temporal composition. This is inline with the transitive nature of parthood, as it is usually defined in literature.
The holistic perspective is not excluding the reductionistic perspective, on the contrary it can be considered its complement.
The union of classes whole and part.
Wholistic
A molecule of a body can have role in the body evolution, without caring if its part of a specific organ and without specifying the time interval in which this role occurred.
A product is a role that can be fulfilled by many objects, but always requires a process to which the product participates and from which it is generated.
Holistic
An holistic perspective considers each part of the whole as equally important, without the need to position the parts within a hierarchy (in time or space). The interest is on the whole object and on its parts (how they contribute to the whole, i.e. their roles), without going further into specifying the spatial hierarchy or the temporal position of each part.
This class allows the picking of parts without necessarily going trough a rigid hierarchy of spatial compositions (e.g. body -> organ -> cell -> molecule) or temporal composition. This is inline with the transitive nature of parthood, as it is usually defined in literature.
The holistic perspective is not excluding the reductionistic perspective, on the contrary it can be considered its complement.
The union of classes whole and part.
A perspective characterized by the belief that:
- a whole is more than merely the sum of its parts (wholism)
- the parts of a whole are interconnected in a way that can be explained only by reference to the whole (rolism).
PhaseDifference
Under sinusoidal conditions, phase difference between the voltage applied to a linear two-terminal element or two-terminal circuit and the electric current in the element or circuit.
DisplacementAngle
PhaseDifference
https://www.wikidata.org/wiki/Q97222919
https://www.electropedia.org/iev/iev.nsf/display?openform&ievref=131-11-48
6-48
Under sinusoidal conditions, phase difference between the voltage applied to a linear two-terminal element or two-terminal circuit and the electric current in the element or circuit.
MolarInternalEnergy
Internal energy per amount of substance.
MolarInternalEnergy
https://www.wikidata.org/wiki/Q88523106
9-6.1
Internal energy per amount of substance.
PhysioChemicalQuantity
Quantities categorised according to ISO 80000-9.
PhysioChemicalQuantity
Quantities categorised according to ISO 80000-9.
MolarEnergy
Energy per amount of substance.
MolarEnergy
https://qudt.org/vocab/quantitykind/MolarEnergy
https://www.wikidata.org/wiki/Q69427512
Energy per amount of substance.
262.11
103
LawrenciumAtom
Atom subclass for lawrencium.
LawrenciumAtom
Atom subclass for lawrencium.
DiffusionArea
One-sixth of the mean square distance between the point where a neutron enters a specified class and the point where it leaves this class.
DiffusionArea
https://qudt.org/vocab/quantitykind/DiffusionArea
https://www.wikidata.org/wiki/Q98966292
10-72.2
One-sixth of the mean square distance between the point where a neutron enters a specified class and the point where it leaves this class.
1.0
0.0
FaradPerMetre
Farad Per Meter (F/m) is a unit in the category of Electric permittivity. It is also known as farad/meter. This unit is commonly used in the SI unit system. Farad Per Meter has a dimension of M-1L-3T4I2 where M is mass, L is length, T is time, and I is electric current. This unit is the standard SI unit in this category.
-- QUDT
http://qudt.org/2.1/vocab/unit
Farad per Metre
FaradPerMetre
http://qudt.org/vocab/unit/FARAD-PER-M
F.m-1
F/m
F/m
Farad Per Meter (F/m) is a unit in the category of Electric permittivity. It is also known as farad/meter. This unit is commonly used in the SI unit system. Farad Per Meter has a dimension of M-1L-3T4I2 where M is mass, L is length, T is time, and I is electric current. This unit is the standard SI unit in this category.
-- QUDT
T+4 L-3 M-1 I+2 Θ0 N0 J0
PermittivityUnit
The class of units with dimensionality 'Permittivity'.
PermittivityUnit
The class of units with dimensionality 'Permittivity'.
Symbolic
A discrete data whose elements can be decoded as tokens from one or more alphabets, without necessarily respecting syntactic rules.
A symbolic entity is not necessarily graphical (e.g. it doesn't necessarily have the physical shape of a letter), but its elements can be decoded and put in relation with an alphabet.
In other words, a sequence of bit "1000010" in a RAM (a non-graphical entity) is a valid symbol since it can be decoded through ASCII rules as the letter "B". The same holds for an entity standing for the sound of a voice saying: "Hello", since it can be decomposed in discrete parts, each of them being associated to a letter of an alphabet.
fe780
emmo
!5*a
cat
for(i=0;i<N;++i)
Symbolic
A discrete data whose elements can be decoded as tokens from one or more alphabets, without necessarily respecting syntactic rules.
A symbolic entity is not necessarily graphical (e.g. it doesn't necessarily have the physical shape of a letter), but its elements can be decoded and put in relation with an alphabet.
In other words, a sequence of bit "1000010" in a RAM (a non-graphical entity) is a valid symbol since it can be decoded through ASCII rules as the letter "B". The same holds for an entity standing for the sound of a voice saying: "Hello", since it can be decomposed in discrete parts, each of them being associated to a letter of an alphabet.
A symbolic object possesses a reductionistic oriented structure.
For example, text is made of words, spaces and punctuations. Words are made of characters (i.e. atomic symbols).
The structure of an array can be expressed mereologically. An array consists of a set of equally sized tiles. The tiles of an n-dimensional array are (n-1)-dimensional,
the tiles of an (n-1)-dimensional array are (n-2)-dimensional and so forth...
The tiles of a vector (1-dimensional array) are scalar symbolic data (that is symbolic data that are not subclasses of array).
The `hasSpatialTile` relation, can be used to navigate between dimensions.
The `hasPart` relation can be used to refer to the scalar data
DiscreteData
A discrete schema may be based on a continuum material basis that is filtered according to its variations. For example, a continuous voltage based signal can be considered 1 or 0 according to some threshold.
Discrete does not mean that the material basis is discrete, but that the data are encoded according to such step-based rules.
Data whose variations are decoded according to a discrete schema.
A text is a collection of discrete symbols. A compact disc is designed to host discrete states in the form of pits and lands.
DiscreteData
Data whose variations are decoded according to a discrete schema.
A discrete schema may be based on a continuum material basis that is filtered according to its variations. For example, a continuous voltage based signal can be considered 1 or 0 according to some threshold.
Discrete does not mean that the material basis is discrete, but that the data are encoded according to such step-based rules.
1e+21
ZettaPrefixedUnit
Superclass for all units prefixed with "zetta" (1e21).
ZettaPrefixedUnit
Superclass for all units prefixed with "zetta" (1e21).
ChemicalNomenclature
A chemical numenclature should not be confused with the chemical formula.
A language object following a specific nomenclature rules for defining univocal names of chemical compounds.
ChemicalNomenclature
A language object following a specific nomenclature rules for defining univocal names of chemical compounds.
100.0
0.0
SquareCentiMetrePerCubicCentiMetre
Square centimetre per cubic centimetre.
http://qudt.org/2.1/vocab/unit
SquareCentiMetrePerCubicCentiMetre
http://qudt.org/vocab/unit/CentiM2-PER-CentiM3
cm2.cm-3
cm²/cm³
Square centimetre per cubic centimetre.
Lethargy
Natural logarithm of the quotient of a reference energy and the kinetic energy of a neutron.
Lethargy
https://qudt.org/vocab/quantitykind/Lethargy
https://www.wikidata.org/wiki/Q25508781
https://www.electropedia.org/iev/iev.nsf/display?openform&ievref=395-07-01
10-69
Natural logarithm of the quotient of a reference energy and the kinetic energy of a neutron.
IonNumberDensity
Number of ions per volume.
IonDensity
IonNumberDensity
https://www.wikidata.org/wiki/Q98831218
10-62.2
Number of ions per volume.
0.0
1.0
AmperePerMetre
is the SI unit of magnetic field strength. One ampere per meter is equal to π/250 oersteds (12.566 371 millioersteds) in CGS units. The ampere per meter is also the SI unit of "magnetization" in the sense of magnetic dipole moment per unit volume; in this context 1 A/m = 0.001 emu per cubic centimeter.
-- QUDT
http://qudt.org/2.1/vocab/unit
Ampere per Metre
AmperePerMetre
http://qudt.org/vocab/unit/A-PER-M
A.m-1
A/m
A/m
is the SI unit of magnetic field strength. One ampere per meter is equal to π/250 oersteds (12.566 371 millioersteds) in CGS units. The ampere per meter is also the SI unit of "magnetization" in the sense of magnetic dipole moment per unit volume; in this context 1 A/m = 0.001 emu per cubic centimeter.
-- QUDT
T0 L-1 M0 I+1 Θ0 N0 J0
MagneticFieldStrengthUnit
The class of units with dimensionality 'MagneticFieldStrength'.
MagneticFieldStrengthUnit
The class of units with dimensionality 'MagneticFieldStrength'.
0.1
d
Deci
SI prefix who's value is 1/10.
Deci
SI prefix who's value is 1/10.
GyromagneticRatio
Ratio of magnetic dipole moment to total angular momentum.
GyromagneticCoefficient
MagnetogyricRatio
GyromagneticRatio
https://qudt.org/vocab/quantitykind/GyromagneticRatio
https://www.wikidata.org/wiki/Q634552
10-12.1
Ratio of magnetic dipole moment to total angular momentum.
https://doi.org/10.1351/goldbook.M03693
RelativeMassDensity
Mass density ρ of a substance divided by the mass density ρ0 of a reference substance, under conditions that should be specified for both substances.
RelativeDensity
RelativeMassDensity
https://www.wikidata.org/wiki/Q11027905
https://www.electropedia.org/iev/iev.nsf/display?openform&ievref=113-03-08
4-4
Mass density ρ of a substance divided by the mass density ρ0 of a reference substance, under conditions that should be specified for both substances.
https://doi.org/10.1351/goldbook.R05262
0.0002777778
0.0
PascalPerHour
A rate of change of pressure measured as the number of Pascals in a period of one hour.
-- QUDT
http://qudt.org/2.1/vocab/unit
Pascal per Hour
PascalPerHour
http://qudt.org/vocab/unit/PA-PER-HR
Pa.h-1
P/hr
A rate of change of pressure measured as the number of Pascals in a period of one hour.
-- QUDT
T-3 L-1 M+1 I0 Θ0 N0 J0
PressurePerTimeUnit
The class of units with dimensionality 'PressurePerTime'.
PressurePerTimeUnit
The class of units with dimensionality 'PressurePerTime'.
SectionModulus
Geometrical characteristic of a shape of a body.
SectionModulus
https://qudt.org/vocab/quantitykind/SectionModulus
https://www.wikidata.org/wiki/Q1930808
https://www.electropedia.org/iev/iev.nsf/display?openform&ievref=113-03-31
4-22
Geometrical characteristic of a shape of a body.
144.91276
61
PromethiumAtom
Atom subclass for promethium.
PromethiumAtom
Atom subclass for promethium.
Assigner
A estimator that uses its predefined knowledge to declare a property of an object.
I estimate the molecular mass of the gas in my bottle as 1.00784 u because it is tagged as H.
Assigner
A estimator that uses its predefined knowledge to declare a property of an object.
SpecificGasConstant
Quotient of the Boltzmann constant and the mass m.
SpecificGasConstant
https://www.wikidata.org/wiki/Q94372268
5-26
Quotient of the Boltzmann constant and the mass m.
BooleanData
A data repesenting a boolean number.
https://www.w3.org/TR/2012/REC-xmlschema11-2-20120405/datatypes.html#boolean
BooleanData
A data repesenting a boolean number.
1.0
0.0
PascalPerSecond
A rate of change of pressure measured as the number of Pascals in a period of one second.
-- QUDT
http://qudt.org/2.1/vocab/unit
Pascal per Second
PascalPerSecond
http://qudt.org/vocab/unit/PA-PER-SEC
Pa.s-1
Pa/s
P/s
A rate of change of pressure measured as the number of Pascals in a period of one second.
-- QUDT
JosephsonConstant
Inverse of the magnetic flux quantum.
The DBpedia definition (http://dbpedia.org/page/Magnetic_flux_quantum) is outdated as May 20, 2019. It is now an exact quantity.
JosephsonConstant
http://qudt.org/vocab/constant/JosephsonConstant
Inverse of the magnetic flux quantum.
SIExactConstant
Physical constant that by definition (after the latest revision of the SI system that was enforsed May 2019) has a known exact numerical value when expressed in SI units.
SIExactConstant
Physical constant that by definition (after the latest revision of the SI system that was enforsed May 2019) has a known exact numerical value when expressed in SI units.
CausalStructure
A causal structure expresses itself in time and space thanks to the underlying causality relations between its constituent quantum entities. It must at least provide two temporal parts. The unity criterion beyond the definition of a causal structure (the most general concept of structure) is the existence of an undirected causal path between each of its parts.
The class of individuals representing causally self-connected world entities.
The disjoint union of Causal Path and CausalSystem classes.
The most fundamental unity criterion for the definition of an structure is that:
- is made of at least two quantums (a structure is not a simple entity)
- all quantum parts form a causally connected graph
CausalStructure
The most fundamental unity criterion for the definition of an structure is that:
- is made of at least two quantums (a structure is not a simple entity)
- all quantum parts form a causally connected graph
The disjoint union of Causal Path and CausalSystem classes.
The class of individuals representing causally self-connected world entities.
A causal structure expresses itself in time and space thanks to the underlying causality relations between its constituent quantum entities. It must at least provide two temporal parts. The unity criterion beyond the definition of a causal structure (the most general concept of structure) is the existence of an undirected causal path between each of its parts.
1.0
0.0
MolePerKilogramPascal
Mole Per Kilogram Pascal (mol/kg-pa) is a unit of Molar Mass variation due to Pressure.
-- QUDT
http://qudt.org/2.1/vocab/unit
Mole per Kilogram Pascal
MolePerKilogramPascal
http://qudt.org/vocab/unit/MOL-PER-KiloGM-PA
mol.kg-1.Pa-1
mol/(kg⋅Pa)
Mole Per Kilogram Pascal (mol/kg-pa) is a unit of Molar Mass variation due to Pressure.
-- QUDT
T+2 L+1 M-2 I0 Θ0 N+1 J0
AmountPerMassPressureUnit
The class of units with dimensionality 'AmountPerMassPressure'.
AmountPerMassPressureUnit
The class of units with dimensionality 'AmountPerMassPressure'.
EnergyDistributionOfCrossSection
Differential quotient of the cross section for a process and the energy of the scattered particle.
EnergyDistributionOfCrossSection
https://qudt.org/vocab/quantitykind/SpectralCrossSection
https://www.wikidata.org/wiki/Q98267245
10-40
Differential quotient of the cross section for a process and the energy of the scattered particle.
3DPrinting
fabrication of objects through the deposition of a material using a print head, nozzle or another printer technology
Note 1 to entry: This term is often used in a non-technical context synonymously with additive manufacturing (3.1.2) and, in these cases, typically associated with machines used for non-industrial purposes including personal use.
Fabrication of objects through the deposition of a material using a print head, nozzle or another printer technology.
This term is often used in a non-technical context synonymously with additive manufacturing and, in these cases, typically associated with machines used for non-industrial purposes including personal use.
3DPrinting
Fabrication of objects through the deposition of a material using a print head, nozzle or another printer technology.
This term is often used in a non-technical context synonymously with additive manufacturing and, in these cases, typically associated with machines used for non-industrial purposes including personal use.
AdditiveManufacturing
process of joining materials to make parts from 3D model data, usually layer upon layer, as opposed to subtractive manufacturing (3.1.29) and formative manufacturing methodologies,
GenerativeManufacturing
AdditiveManufacturing
process of joining materials to make parts from 3D model data, usually layer upon layer, as opposed to subtractive manufacturing (3.1.29) and formative manufacturing methodologies,
Dimension
A coded sign that stands for a dimension.
Examples of some Dimension individuals:
- 'x-dimension': stand for the spatial dimension along the x-direction.
- 'emergy_dimension': stand for the energy dimension in an energy spectrum.
- 'number_of_samples': is a countable dimension that may stand for the index of a given sample in a series of samples.
Dimension
A coded sign that stands for a dimension.
Property
A coded that makes use of an atomic symbol with respect to the code used to refer to the interaction.
A property is atomic in the sense that is aimed to deliver one and one only aspect of the object according to one code, such as the color with one sign (e.g., black) or a quantitiative property (e.g., 1.4 kg).
Hardness is a subclass of properties.
Vickers hardness is a subclass of hardness that involves the procedures and instruments defined by the standard hardness test.
The name "red" which is atomic in the code made of the list of colors.
Property
A coded that makes use of an atomic symbol with respect to the code used to refer to the interaction.
A property is atomic in the sense that is aimed to deliver one and one only aspect of the object according to one code, such as the color with one sign (e.g., black) or a quantitiative property (e.g., 1.4 kg).
T0 L-2 M0 I0 Θ0 N0 J+1
LuminanceUnit
The class of units with dimensionality 'Luminance'.
LuminanceUnit
The class of units with dimensionality 'Luminance'.
1.0
0.0
NewtonPerAmpere
SI derived unit newton divided by the SI base unit ampere
-- QUDT
http://qudt.org/2.1/vocab/unit
Newton Per Ampere
NewtonPerAmpere
http://qudt.org/vocab/unit/N-PER-A
N.A-1
N/A
SI derived unit newton divided by the SI base unit ampere
-- QUDT
T-2 L+1 M+1 I-1 Θ0 N0 J0
MagneticPotentialUnit
The class of units with dimensionality 'MagneticPotential'.
MagneticPotentialUnit
The class of units with dimensionality 'MagneticPotential'.
1e-12
0.0
CubicMicroMetrePerMilliLitre
Cubic micrometre per millilitre.
http://qudt.org/2.1/vocab/unit
CubicMicroMetrePerMilliLitre
http://qudt.org/vocab/unit/MicroM3-PER-MilliL
um3.mL-1
µm³/mL
Cubic micrometre per millilitre.
NonSIUnit
Measurement units that are not SI units.
NonSIUnit
Measurement units that are not SI units.
Tempering
Process consisting of two steps: - first, the steel is heated in a quenching treatment to a temperature above Ac3 and then rapidly cooled in a liquid to produce a process-specific grain structure; - subsequently, the steel is heated to a specific temperature during tempering to set the desired property and cooled in air.
QuenchingAndTempering
Vergüten
Tempering
Process consisting of two steps: - first, the steel is heated in a quenching treatment to a temperature above Ac3 and then rapidly cooled in a liquid to produce a process-specific grain structure; - subsequently, the steel is heated to a specific temperature during tempering to set the desired property and cooled in air.
HeatTreatment
Heat to a temperature appropriate for the particular material, maintain at that temperature and then cool at an appropriate rate to reduce hardness, improve machinability or achieve desired properties.
wärmebehandeln
HeatTreatment
Heat to a temperature appropriate for the particular material, maintain at that temperature and then cool at an appropriate rate to reduce hardness, improve machinability or achieve desired properties.
J
Joule
SI unit for energy.
The SI unit of work or energy, defined to be the work done by a force of one newton acting to move an object through a distance of one meter in the direction in which the force is applied. Equivalently, since kinetic energy is one half the mass times the square of the velocity, one joule is the kinetic energy of a mass of two kilograms moving at a velocity of 1 m/s.
-- QUDT
Joule
JOU
http://qudt.org/vocab/unit/J
J
http://dbpedia.org/resource/Joule
SI unit for energy.
The SI unit of work or energy, defined to be the work done by a force of one newton acting to move an object through a distance of one meter in the direction in which the force is applied. Equivalently, since kinetic energy is one half the mass times the square of the velocity, one joule is the kinetic energy of a mass of two kilograms moving at a velocity of 1 m/s.
-- QUDT
http://en.wikipedia.org/wiki/Joule?oldid=494340406
https://doi.org/10.1351/goldbook.J03363
42
95.95
MolybdenumAtom
Atom subclass for molybdenum.
MolybdenumAtom
Atom subclass for molybdenum.
SubProcess
A process which is an holistic spatial part of a process.
In the EMMO the relation of participation to a process falls under mereotopology.
Since topological connection means causality, then the only way for a real world object to participate to a process is to be a part of it.
Breathing is a subprocess of living for a human being.
SubProcess
A process which is an holistic spatial part of a process.
In the EMMO the relation of participation to a process falls under mereotopology.
Since topological connection means causality, then the only way for a real world object to participate to a process is to be a part of it.
NonTemporalRole
An holistic spatial part of a whole.
HolisticSpatialPart
NonTemporalRole
An holistic spatial part of a whole.
ThomsonCoefficient
Quotient of Thomson heat power developed, and the electric current and temperature difference.
ThomsonCoefficient
https://qudt.org/vocab/quantitykind/ThomsonCoefficient
https://www.wikidata.org/wiki/Q105801233
12-23
Quotient of Thomson heat power developed, and the electric current and temperature difference.
JouleThomsonCoefficient
Change of thermodynamic temperature with respect to pressure in a Joule-Thomson process at constant enthalpy.
JouleThomsonCoefficient
https://www.wikidata.org/wiki/Q93946998
5-24
Change of thermodynamic temperature with respect to pressure in a Joule-Thomson process at constant enthalpy.
1.0
0.0
PascalMetrePerSquareSecond
Pascal metre per square second.
http://qudt.org/2.1/vocab/unit
PascalMetrePerSquareSecond
http://qudt.org/vocab/unit/PA-M-PER-SEC2
Pa.m.s-2
Pa⋅m/s²
Pascal metre per square second.
T-4 L0 M+1 I0 Θ0 N0 J0
MassPerQuarticTimeUnit
The class of units with dimensionality 'MassPerQuarticTime'.
MassPerQuarticTimeUnit
The class of units with dimensionality 'MassPerQuarticTime'.
110
281.165
DarmastadtiumAtom
Atom subclass for darmastadtium.
DarmastadtiumAtom
Atom subclass for darmastadtium.
NonPrefixedUnit
A measurement unit symbol that do not have a metric prefix as a direct spatial part.
NonPrefixedUnit
A measurement unit symbol that do not have a metric prefix as a direct spatial part.
SandMolds
SandMolds
FormingFromPowder
FormingFromPowder
MolarEntropy
Entropy per amount of substance.
MolarEntropy
https://qudt.org/vocab/quantitykind/MolarEntropy
https://www.wikidata.org/wiki/Q68972876
9-8
Entropy per amount of substance.
Grinding
Removal of material by means of rigid or flexible discs or belts containing abrasives.
Schleifen
Grinding
83
208.9804
BismuthAtom
Atom subclass for bismuth.
BismuthAtom
Atom subclass for bismuth.
Hypothesis
A hypothesis is a theory, estimated and objective, since its estimated premises are objective.
Hypothesis
A hypothesis is a theory, estimated and objective, since its estimated premises are objective.
Objective
A coded conventional that is determined by each interpeter following a well defined determination procedure through a specific perception channel.
The word objective does not mean that each observation will provide the same results. It means that the observation followed a well defined procedure.
This class refers to what is commonly known as physical property, i.e. a measurable property of physical system, whether is quantifiable or not.
Objective
A coded conventional that is determined by each interpeter following a well defined determination procedure through a specific perception channel.
Theory
A 'conventional' that stand for a 'physical'.
The 'theory' is e.g. a proposition, a book or a paper whose sub-symbols suggest in the mind of the interpreter an interpretant structure that can represent a 'physical'.
It is not an 'icon' (like a math equation), because it has no common resemblance or logical structure with the 'physical'.
In Peirce semiotics: legisign-symbol-argument
Theory
A 'conventional' that stand for a 'physical'.
Estimated
A coded that is assigned from an estimation.
The biography of a person that the author have not met.
Estimated
A coded that is assigned from an estimation.
Pa
ProtactiniumSymbol
The symbol that stands for the protactinium atom.
ProtactiniumSymbol
The symbol that stands for the protactinium atom.
0.0
1.0
VoltPerMetre
Volt Per Meter (V/m) is a unit in the category of Electric field strength. It is also known as volts per meter, volt/meter, volt/metre, volt per metre, volts per metre. This unit is commonly used in the SI unit system. Volt Per Meter (V/m) has a dimension of MLT⁻³I⁻¹ where M is mass, L is length, T is time, and I is electric current. This unit is the standard SI unit in this category.
-- QUDT
http://qudt.org/2.1/vocab/unit
http://www.efunda.com/glossary/units/units--electric_field_strength--volt_per_meter.cfm
Volt per Metre
VoltPerMetre
http://qudt.org/vocab/unit/V-PER-M
V.m-1
V/m
Volt Per Meter (V/m) is a unit in the category of Electric field strength. It is also known as volts per meter, volt/meter, volt/metre, volt per metre, volts per metre. This unit is commonly used in the SI unit system. Volt Per Meter (V/m) has a dimension of MLT⁻³I⁻¹ where M is mass, L is length, T is time, and I is electric current. This unit is the standard SI unit in this category.
-- QUDT
T-3 L+1 M+1 I-1 Θ0 N0 J0
ElectricFieldStrengthUnit
The class of units with dimensionality 'ElectricFieldStrength'.
ElectricFieldStrengthUnit
The class of units with dimensionality 'ElectricFieldStrength'.
ShortRangeOrderParameter
fraction of nearest-neighbour atom pairs in an Ising ferromagnet having magnetic moments in one direction, minus the fraction having magnetic moments in the opposite direction
ShortRangeOrderParameter
https://qudt.org/vocab/quantitykind/Short-RangeOrderParameter
https://www.wikidata.org/wiki/Q105495979
12-5.1
fraction of nearest-neighbour atom pairs in an Ising ferromagnet having magnetic moments in one direction, minus the fraction having magnetic moments in the opposite direction
PaperManufacturing
PaperManufacturing
OneManifold
A topological space with the property that each point has a neighborhood that is homeomorphic to an open subset of 1-dimensional Euclidean space.
One-dimensional manifolds include lines and circles, but not self-crossing curves. Two-dimensional manifolds are also called surfaces. Examples include the plane, the sphere, and the torus, and also the Klein bottle and real projective plane.
1-manifold
OneManifold
A topological space with the property that each point has a neighborhood that is homeomorphic to an open subset of 1-dimensional Euclidean space.
One-dimensional manifolds include lines and circles, but not self-crossing curves. Two-dimensional manifolds are also called surfaces. Examples include the plane, the sphere, and the torus, and also the Klein bottle and real projective plane.
68
167.259
ErbiumAtom
Atom subclass for erbium.
ErbiumAtom
Atom subclass for erbium.
z
1e-21
Zepto
SI prefix who's value is 1e-21.
Zepto
SI prefix who's value is 1e-21.
1.0
0.0
PascalMetre
Pascal metre.
http://qudt.org/2.1/vocab/unit
PascalMetre
http://qudt.org/vocab/unit/PA-M
Pa.m
Pa⋅m
Pascal metre.
T-2 L0 M+1 I0 Θ0 N0 J0
ForcePerLengthUnit
The class of units with dimensionality 'ForcePerLength'.
ForcePerLengthUnit
The class of units with dimensionality 'ForcePerLength'.
Ra
RadiumSymbol
The symbol that stands for the radium atom.
RadiumSymbol
The symbol that stands for the radium atom.
HolisticArrangement
A system which is mainly characterised by the spatial configuration of its elements.
HolisticArrangement
A system which is mainly characterised by the spatial configuration of its elements.
1.602177e-19
0.0
ElectronVoltPerKelvin
`Electron Volt per Kelvin` is a unit for 'Heat Capacity' expressed as eV/K.
-- QUDT
http://qudt.org/2.1/vocab/unit
Electron Volt per Kelvin
ElectronVoltPerKelvin
http://qudt.org/vocab/unit/EV-PER-K
eV.K-1
eV/K
ev/K
`Electron Volt per Kelvin` is a unit for 'Heat Capacity' expressed as eV/K.
-- QUDT
T-2 L+2 M+1 I0 Θ-1 N0 J0
EntropyUnit
The class of units with dimensionality 'Entropy'.
EntropyUnit
The class of units with dimensionality 'Entropy'.
T-1 L-3 M0 I0 Θ0 N+1 J0
AmountPerVolumeTimeUnit
The class of units with dimensionality 'AmountPerVolumeTime'.
AmountPerVolumeTimeUnit
The class of units with dimensionality 'AmountPerVolumeTime'.
VectorMeson
A meson with total spin 1 and odd parit.
VectorMeson
A meson with total spin 1 and odd parit.
https://en.wikipedia.org/wiki/Vector_meson
0.01
c
Centi
SI prefix who's value is 1/100.
Centi
SI prefix who's value is 1/100.
Join
A tessellation in wich a tile is next for two or more non spatially connected tiles.
Join
https://raw.githubusercontent.com/emmo-repo/EMMO/1.0.0-rc1/doc/figs/Join.png
A tessellation in wich a tile is next for two or more non spatially connected tiles.
TemporalTiling
A well formed tessellation with tiles that are all temporal.
TemporalTiling
A well formed tessellation with tiles that are all temporal.
DegreeCelsiusCentiMetre
`Degree Celsius Centimeter` is a C.G.S System unit for 'Length Temperature' expressed as cm-degC.
-- QUDT
http://qudt.org/2.1/vocab/unit
Degree Celsius Centimetre
DegreeCelsiusCentiMetre
http://qudt.org/vocab/unit/DEG_C-CentiM
Cel.cm
°C⋅cm
`Degree Celsius Centimeter` is a C.G.S System unit for 'Length Temperature' expressed as cm-degC.
-- QUDT
T0 L+1 M0 I0 Θ+1 N0 J0
LengthTemperatureUnit
The class of units with dimensionality 'LengthTemperature'.
LengthTemperatureUnit
The class of units with dimensionality 'LengthTemperature'.
1.0
0.0
NewtonSquareMetrePerAmpere
Newton metre squared per Ampere.
http://qudt.org/2.1/vocab/unit
NewtonSquareMetrePerAmpere
http://qudt.org/vocab/unit/N-M2-PER-A
N.m2.A-1
N.m2/A
N⋅m²/A
Newton metre squared per Ampere.
T-2 L+3 M+1 I-1 Θ+1 N0 J0
NewtonSquareMetrePerAmpereUnit
The class of units with dimensionality 'NewtonSquareMetrePerAmpere'.
NewtonSquareMetrePerAmpereUnit
The class of units with dimensionality 'NewtonSquareMetrePerAmpere'.
ThermalSprayingForming
ThermalSprayingForming
ConstructionLanguage
A computer language by which a human can specify an executable problem solution to a computer.
ConstructionLanguage
A computer language by which a human can specify an executable problem solution to a computer.
https://en.wikipedia.org/wiki/Software_construction#Construction_languages
ComputerLanguage
A formal language used to communicate with a computer.
The categorisation of computer languages is based on
Guide to the Software Engineering Body of Knowledge (SWEBOK(R)): Version 3.0, January 2014. Editors Pierre Bourque, Richard E. Fairley. Publisher: IEEE Computer Society PressWashingtonDCUnited States. ISBN:978-0-7695-5166-1.
https://www.computer.org/education/bodies-of-knowledge/software-engineering
ComputerLanguage
A formal language used to communicate with a computer.
The categorisation of computer languages is based on
Guide to the Software Engineering Body of Knowledge (SWEBOK(R)): Version 3.0, January 2014. Editors Pierre Bourque, Richard E. Fairley. Publisher: IEEE Computer Society PressWashingtonDCUnited States. ISBN:978-0-7695-5166-1.
https://www.computer.org/education/bodies-of-knowledge/software-engineering
https://en.wikipedia.org/wiki/Computer_language
T-1 L+2 M+1 I0 Θ0 N-1 J0
EnergyTimePerAmountUnit
The class of units with dimensionality 'EnergyTimePerAmount'.
EnergyTimePerAmountUnit
The class of units with dimensionality 'EnergyTimePerAmount'.
GrandCanonicalPartionFunction
Sum of canonical partition function Z (NA,NB,…) for the given number of particles A, B, ... multiplied by absolute activities of particles A, B, ...
GrandPartionFunction
GrandCanonicalPartionFunction
https://qudt.org/vocab/quantitykind/GrandCanonicalPartitionFunction
https://www.wikidata.org/wiki/Q96176022
9-35.3
Sum of canonical partition function Z (NA,NB,…) for the given number of particles A, B, ... multiplied by absolute activities of particles A, B, ...
U
UraniumSymbol
The symbol that stands for the uranium atom.
UraniumSymbol
The symbol that stands for the uranium atom.
StructureFactor
Mathematical description in crystallography.
StructureFactor
https://qudt.org/vocab/quantitykind/StructureFactor
https://www.wikidata.org/wiki/Q900684
12-5.4
Mathematical description in crystallography.
Radius
Distance from the centre of a circle to the circumference.
Radius
https://qudt.org/vocab/quantitykind/Radius
https://www.wikidata.org/wiki/Q173817
https://www.electropedia.org/iev/iev.nsf/display?openform&ievref=113-01-25
https://dbpedia.org/page/Radius
3-1.6
Distance from the centre of a circle to the circumference.
https://en.wikipedia.org/wiki/Radius
RadialDistance
Distance, where one point is located on an axis or within a closed non self-intersecting curve or surface.
RadialDistance
https://qudt.org/vocab/quantitykind/RadialDistance
https://www.wikidata.org/wiki/Q1578234
https://www.electropedia.org/iev/iev.nsf/display?openform&ievref=113-01-26
3-1.9
Distance, where one point is located on an axis or within a closed non self-intersecting curve or surface.
Quantum
A quantum is the EMMO mereological atomistic and causal reductionistic entity. To avoid confusion with the concept of atom coming from physics and to underline the causal reductionistic approach, we will use the expression quantum mereology, instead of atomistic mereology.
A quantum is the most fundamental item (both mereologically and causally) and is considered causally self-connected by definition.
The quantum concept recalls the fact that there is lower epistemological limit to our knowledge of the universe, related to the uncertainity principle.
Space and time emerge following the network of causal connections between quantum objects. So quantum objects are adimensional objects, that precede space and time dimensions: they are simple beings (in greek οντα).
Using physics concepts, we can think the quantum as an elementary particle (e.g. an electron) in a specific state between two causal interactions.
A quantum stands for an incoming or outcoming real particle in a Feynman diagram.
The class of entities without proper parts.
The class of the mereological and causal fundamental entities.
RealParticle
From a physics perspective a quantum can be related to smallest identifiable entities, according to the limits imposed by the uncertainty principle in space and time measurements.
However, the quantum mereotopology approach is not restricted only to physics. For example, in a manpower management ontology, a quantum can stand for an hour (time) of a worker (space) activity.
Quantum
A quantum is the most fundamental item (both mereologically and causally) and is considered causally self-connected by definition.
The quantum concept recalls the fact that there is lower epistemological limit to our knowledge of the universe, related to the uncertainity principle.
Space and time emerge following the network of causal connections between quantum objects. So quantum objects are adimensional objects, that precede space and time dimensions: they are simple beings (in greek οντα).
Using physics concepts, we can think the quantum as an elementary particle (e.g. an electron) in a specific state between two causal interactions.
A quantum stands for an incoming or outcoming real particle in a Feynman diagram.
The class of entities without proper parts.
The class of the mereological and causal fundamental entities.
A quantum is the EMMO mereological atomistic and causal reductionistic entity. To avoid confusion with the concept of atom coming from physics and to underline the causal reductionistic approach, we will use the expression quantum mereology, instead of atomistic mereology.
Mathematical
A mathematical object in this branch is not representing a concept but an actual graphical object built using mathematcal symbols arranged in some way, according to math conventions.
The class of general mathematical symbolic objects respecting mathematical syntactic rules.
Mathematical
The class of general mathematical symbolic objects respecting mathematical syntactic rules.
A mathematical object in this branch is not representing a concept but an actual graphical object built using mathematcal symbols arranged in some way, according to math conventions.
T0 L+6 M0 I0 Θ0 N0 J0
SexticLengthUnit
The class of units with dimensionality 'SexticLength'.
SexticLengthUnit
The class of units with dimensionality 'SexticLength'.
f
1e-15
Femto
SI prefix who's value is 1e-15.
Femto
SI prefix who's value is 1e-15.
PhaseCoefficient
Change of phase angle with the length along the path travelled by a plane wave.
The imaginary part of the propagation coefficient.
PhaseChangeCoefficient
PhaseCoefficient
https://qudt.org/vocab/quantitykind/PhaseCoefficient
https://www.wikidata.org/wiki/Q32745742
https://www.electropedia.org/iev/iev.nsf/display?openform&ievref=103-10-20
3-26.2
Change of phase angle with the length along the path travelled by a plane wave.
The imaginary part of the propagation coefficient.
https://en.wikipedia.org/wiki/Propagation_constant#Phase_constant
TemporalTile
A direct part that is obtained by partitioning a whole purely in temporal parts.
TemporalTile
A direct part that is obtained by partitioning a whole purely in temporal parts.
1e-06
0.0
MicroSiemensPerMetre
0.000001-fold of the SI derived unit Siemens divided by the SI base unit metre
-- QUDT
http://qudt.org/2.1/vocab/unit
Microsiemens Per Metre
MicroSiemensPerMetre
http://qudt.org/vocab/unit/MicroS-PER-M
uS.m-1
μS/m
0.000001-fold of the SI derived unit Siemens divided by the SI base unit metre
-- QUDT
T+3 L-3 M-1 I+2 Θ0 N0 J0
ElectricConductivityUnit
The class of units with dimensionality 'ElectricConductivity'.
ElectricConductivityUnit
The class of units with dimensionality 'ElectricConductivity'.
T-3 L+2 M+1 I-1 Θ-1 N0 J0
ElectricPotentialPerTemperatureUnit
The class of units with dimensionality 'ElectricPotentialPerTemperature'.
ElectricPotentialPerTemperatureUnit
The class of units with dimensionality 'ElectricPotentialPerTemperature'.
1.157407e-05
0.0
MolePerSquareMetrePerDay
quantity of matter per unit area per unit of time.
-- QUDT
http://qudt.org/2.1/vocab/unit
Moles per square metre per day
MolePerSquareMetrePerDay
http://qudt.org/vocab/unit/MOL-PER-M2-DAY
mol.m-2.d-1
mol/(m²⋅day)
quantity of matter per unit area per unit of time.
-- QUDT
T-1 L-2 M0 I0 Θ0 N+1 J0
AmountPerAreaTimeUnit
The class of units with dimensionality 'AmountPerAreaTime'.
AmountPerAreaTimeUnit
The class of units with dimensionality 'AmountPerAreaTime'.
0.0
0.0003046174
SquareDegree
A square degree is a non-SI unit measure of solid angle. It is denoted in various ways, including deg, sq. deg. and °². Just as degrees are used to measure parts of a circle, square degrees are used to measure parts of a sphere. Analogous to one degree being equal to π /180 radians, a square degree is equal to (π /180) or about 1/3283 steradian. The number of square degrees in a whole sphere is or approximately 41 253 deg. This is the total area of the 88 constellations in the list of constellations by area. For example, observed from the surface of the Earth, the Moon has a diameter of approximately 0.5°, so it covers a solid angle of approximately 0.196 deg, which is 4.8 × 10 of the total sky sphere.
-- QUDT
http://qudt.org/2.1/vocab/unit
Square degree
SquareDegree
http://qudt.org/vocab/unit/DEG2
deg2
°²
A square degree is a non-SI unit measure of solid angle. It is denoted in various ways, including deg, sq. deg. and °². Just as degrees are used to measure parts of a circle, square degrees are used to measure parts of a sphere. Analogous to one degree being equal to π /180 radians, a square degree is equal to (π /180) or about 1/3283 steradian. The number of square degrees in a whole sphere is or approximately 41 253 deg. This is the total area of the 88 constellations in the list of constellations by area. For example, observed from the surface of the Earth, the Moon has a diameter of approximately 0.5°, so it covers a solid angle of approximately 0.196 deg, which is 4.8 × 10 of the total sky sphere.
-- QUDT
AreaFractionUnit
Unit for quantities of dimension one that are the fraction of two areas.
Unit for solid angle.
AreaFractionUnit
Unit for quantities of dimension one that are the fraction of two areas.
Cogniser
An interpreter who establish the connection between an icon an an object recognizing their resemblance (e.g. logical, pictorial)
The scientist that connects an equation to a physical phenomenon.
Cogniser
An interpreter who establish the connection between an icon an an object recognizing their resemblance (e.g. logical, pictorial)
Index
A 'Sign' that stands for an 'Object' due to causal continguity.
Signal
Smoke stands for a combustion process (a fire).
My facial expression stands for my emotional status.
Index
A 'Sign' that stands for an 'Object' due to causal continguity.
NeutronYieldPerAbsorption
Average number of fission neutrons, both prompt and delayed, emitted per neutron absorbed in a fissionable nuclide or in a nuclear fuel, as specified.
NeutronYieldPerAbsorption
https://qudt.org/vocab/quantitykind/NeutronYieldPerAbsorption
https://www.wikidata.org/wiki/Q99159075
10-74.2
Average number of fission neutrons, both prompt and delayed, emitted per neutron absorbed in a fissionable nuclide or in a nuclear fuel, as specified.
Sg
SeaborgiumSymbol
The symbol that stands for the seaborgium atom.
SeaborgiumSymbol
The symbol that stands for the seaborgium atom.
SquareDegreeCelsiusPerSecond
Square degree Celsius per second.
http://qudt.org/2.1/vocab/unit
SquareDegreeCelsiusPerSecond
http://qudt.org/vocab/unit/DEG_C2-PER-SEC
K2.s-1
°C²⋅s
Square degree Celsius per second.
T-1 L0 M0 I0 Θ+2 N0 J0
SquareTemperaturePerTimeUnit
The class of units with dimensionality 'SquareTemperaturePerTime'.
SquareTemperaturePerTimeUnit
The class of units with dimensionality 'SquareTemperaturePerTime'.
0.0
3600.0
VoltAmpereHour
product of the unit for apparent by ampere and the unit hour
-- QUDT
http://qudt.org/2.1/vocab/unit
Volt Ampere Hour
VoltAmpereHour
http://qudt.org/vocab/unit/V-A-HR
V.A.h
V⋅A⋅hr
product of the unit for apparent by ampere and the unit hour
-- QUDT
NeutralAtom
A standalone atom that has no net charge.
NeutralAtom
A standalone atom that has no net charge.
Replica
An icon that not only resembles the object, but also can express some of the object's functions.
A small scale replica of a plane tested in a wind gallery shares the same functionality in terms of aerodynamic behaviour of the bigger one.
Pinocchio is a functional icon of a boy since it imitates the external behaviour without having the internal biological structure of a human being (it is made of magic wood...).
Replica
An icon that not only resembles the object, but also can express some of the object's functions.
ShortData
A data representing 16-bit integer number.
https://www.w3.org/TR/xmlschema11-2/#short
ShortData
A data representing 16-bit integer number.
Foaming
Foaming
Whole
A whole is always defined using a criterion expressed through the classical transitive parthood relation.
This class is expected to host the definition of world objects as they appear in its wholeness, dependently on some of their parts and independently on the surroundings.
A whole is categorized as fundamental (or maximal) or redundant (non-maximal).
The superclass of entities which are defined by requiring the existence of some parts (at least one) of specifically given types, where the specified types are different with respect to the type of the whole.
Whole
The superclass of entities which are defined by requiring the existence of some parts (at least one) of specifically given types, where the specified types are different with respect to the type of the whole.
A whole is always defined using a criterion expressed through the classical transitive parthood relation.
This class is expected to host the definition of world objects as they appear in its wholeness, dependently on some of their parts and independently on the surroundings.
Organisation
An holistic system of people that has its own functions with responsibilities, authorities and relationships to achieve its objectives.
ISO 55000:2014
organization: person or group of people that has its own functions with responsibilities, authorities and relationships to achieve its objectives
Organisation
An holistic system of people that has its own functions with responsibilities, authorities and relationships to achieve its objectives.
T0 L-4 M0 I0 Θ0 N0 J0
PerQuarticLengthUnit
The class of units with physical dimensionality per length to the power of four.
PerQuarticLengthUnit
The class of units with physical dimensionality per length to the power of four.
Hadron
Particles composed of two or more quarks.
Hadron
Particles composed of two or more quarks.
https://en.wikipedia.org/wiki/Hadron
Matter
A matter entity requires the presence of fermions without excluding the presence of real or virtual fundamental bosons parts that are responsible for the interactions between the (real) fundamental fermions.
The class of physical objects that have some fermionic quantum parts.
The interpretation of the term "matter" is not univocal. Several concepts are labelled with this term, depending on the field of science. The concept mass is sometimes related to the term "matter", even if the former refers to a physical quantity (precisely defined by modern physics) while the latter is a type that qualifies a physical entity.
It is possible to identify more than one concept that can be reasonably labelled with the term "matter". For example, it is possible to label as matter only the entities that are made up of atoms. Or more generally, we can be more fine-grained and call "matter" the entities that are made up of protons, neutrons or electrons, so that we can call matter also a neutron radiation or a cathode ray.
A more fundamental approach, that we embrace for the EMMO, considers matter as entities that are made of fermions (i.e. quarks and leptons) requiring their presence, without excluding particles like the W and Z bosons that possess some mass, but are not fermions.
Antimatter is a subclass of matter.
PhysicalSubstance
Matter
The interpretation of the term "matter" is not univocal. Several concepts are labelled with this term, depending on the field of science. The concept mass is sometimes related to the term "matter", even if the former refers to a physical quantity (precisely defined by modern physics) while the latter is a type that qualifies a physical entity.
It is possible to identify more than one concept that can be reasonably labelled with the term "matter". For example, it is possible to label as matter only the entities that are made up of atoms. Or more generally, we can be more fine-grained and call "matter" the entities that are made up of protons, neutrons or electrons, so that we can call matter also a neutron radiation or a cathode ray.
A more fundamental approach, that we embrace for the EMMO, considers matter as entities that are made of fermions (i.e. quarks and leptons) requiring their presence, without excluding particles like the W and Z bosons that possess some mass, but are not fermions.
Antimatter is a subclass of matter.
The class of physical objects that have some fermionic quantum parts.
A matter entity requires the presence of fermions without excluding the presence of real or virtual fundamental bosons parts that are responsible for the interactions between the (real) fundamental fermions.
Matter includes ordinary- and anti-matter. It is possible to have entities that are made of particle and anti-particles (e.g. mesons made of a quark and an anti-quark pair) so that it is possible to have entities that are somewhat heterogeneous with regards to this distinction.
BondedParticle
A composite particle is a bonded particle for which it is possible to clearly define its bosonic or fermionic behaviour. The term particle is then reserved for entities whose fermionic or bosonic nature is clearly defined.
BondedParticle
A composite particle is a bonded particle for which it is possible to clearly define its bosonic or fermionic behaviour. The term particle is then reserved for entities whose fermionic or bosonic nature is clearly defined.
0.0
min
60.0
Minute
A minute is a unit of measurement of time. The minute is a unit of time equal to 1/60 (the first sexagesimal fraction of an hour or 60 seconds. In the UTC time scale, a minute on rare occasions has 59 or 61 seconds; see leap second. The minute is not an SI unit; however, it is accepted for use with SI units. The SI symbol for minute or minutes is min (for time measurement) or the prime symbol after a number, e.g. 5' (for angle measurement, even if it is informally used for time).
-- QUDT
Non-SI time unit defined as 60 seconds.
Minute
MIN
http://qudt.org/vocab/unit/MIN
min
http://dbpedia.org/page/Minute
Non-SI time unit defined as 60 seconds.
A minute is a unit of measurement of time. The minute is a unit of time equal to 1/60 (the first sexagesimal fraction of an hour or 60 seconds. In the UTC time scale, a minute on rare occasions has 59 or 61 seconds; see leap second. The minute is not an SI unit; however, it is accepted for use with SI units. The SI symbol for minute or minutes is min (for time measurement) or the prime symbol after a number, e.g. 5' (for angle measurement, even if it is informally used for time).
-- QUDT
T+1 L0 M0 I0 Θ0 N0 J0
TimeUnit
The class of units with dimensionality 'Time'.
TimeUnit
The class of units with dimensionality 'Time'.
Nucleus
The small, dense region at the centre of an atom consisting of protons and neutrons.
Nucleus
The small, dense region at the centre of an atom consisting of protons and neutrons.
Mobility
Quotient of average drift speed imparted to a charged particle in a medium by an electric field, and the electric field strength.
Mobility
https://qudt.org/vocab/quantitykind/Mobility
https://www.wikidata.org/wiki/Q900648
https://www.electropedia.org/iev/iev.nsf/display?openform&ievref=113-06-36
https://www.electropedia.org/iev/iev.nsf/display?openform&ievref=881-02-77
10-61
Quotient of average drift speed imparted to a charged particle in a medium by an electric field, and the electric field strength.
https://doi.org/10.1351/goldbook.M03955
1.0
0.0
AmperePerSquareMetre
`Ampere Per Square Meter` is a unit in the category of electric current density. This unit is commonly used in the SI unit system.
-- QUDT
http://qudt.org/2.1/vocab/unit
https://cdd.iec.ch/cdd/iec61360/iec61360.nsf/Units/0112-2---62720%23UAA105
Ampere per Square Metre
AmperePerSquareMetre
http://qudt.org/vocab/unit/A-PER-M2
A.m-2
A/m2
A/m²
`Ampere Per Square Meter` is a unit in the category of electric current density. This unit is commonly used in the SI unit system.
-- QUDT
T0 L-2 M0 I+1 Θ0 N0 J0
ElectricCurrentDensityUnit
The class of units with dimensionality 'ElectricCurrentDensity'.
ElectricCurrentDensityUnit
The class of units with dimensionality 'ElectricCurrentDensity'.
EnergyFluenceRate
In nuclear physics, time derivative of the energy fluence.
EnergyFluenceRate
https://qudt.org/vocab/quantitykind/EnergyFluenceRate
https://www.wikidata.org/wiki/Q98538655
10-47
In nuclear physics, time derivative of the energy fluence.
1
Quantity
A quantifiable property of a phenomenon, body, or substance.
VIM defines a quantity as a "property of a phenomenon, body, or substance, where the property has a magnitude that can be expressed as a number and a reference".
A quantity in EMMO is a property and therefore only addresses the first part of the VIM definition (that is a property of a phenomenon, body, or substance). The second part (that it can be expressed as a number and a reference) is syntactic and addressed by emmo:QuantityValue.
Measurand
length
Rockwell C hardness
electric resistance
Quantity
https://qudt.org/schema/qudt/Quantity
A quantifiable property of a phenomenon, body, or substance.
measurand
quantity
VIM defines a quantity as a "property of a phenomenon, body, or substance, where the property has a magnitude that can be expressed as a number and a reference".
A quantity in EMMO is a property and therefore only addresses the first part of the VIM definition (that is a property of a phenomenon, body, or substance). The second part (that it can be expressed as a number and a reference) is syntactic and addressed by emmo:QuantityValue.
MetrologicalReference
A reference can be a measurement unit, a measurement procedure, a reference material, or a combination of such (VIM3 1.1 NOTE 2).
A symbolic is recognized as reference unit also if it is not part of a quantity (e.g. as in the sentence "the Bq is the reference unit of Becquerel").
For this reason we can't declare the axiom:
MetrologicalReference SubClassOf: inverse(hasMetrologicalReference) some Quantity
because there exist reference units without being part of a quantity.
This is peculiar to EMMO, where quantities as syntatic entities (explicit quantities) are distinct with quantities as semantic entities (properties).
MetrologicalReference
A reference can be a measurement unit, a measurement procedure, a reference material, or a combination of such (VIM3 1.1 NOTE 2).
A symbolic is recognized as reference unit also if it is not part of a quantity (e.g. as in the sentence "the Bq is the reference unit of Becquerel").
For this reason we can't declare the axiom:
MetrologicalReference SubClassOf: inverse(hasMetrologicalReference) some Quantity
because there exist reference units without being part of a quantity.
This is peculiar to EMMO, where quantities as syntatic entities (explicit quantities) are distinct with quantities as semantic entities (properties).
Magnetization
At a given point within a domain of quasi-infinitesimal volume V, vector quantity equal to the magnetic area moment m of the substance contained within the domain divided by the volume V.
Magnetization
https://qudt.org/vocab/quantitykind/Magnetization
https://www.wikidata.org/wiki/Q856711
https://www.electropedia.org/iev/iev.nsf/display?openform&ievref=121-11-52
6-24
At a given point within a domain of quasi-infinitesimal volume V, vector quantity equal to the magnetic area moment m of the substance contained within the domain divided by the volume V.
ActivityOfSolvent
For a solvent in a solution, quotient of the absolute activity and that of the pure substance at the same temperature and pressure.
ActivityOfSolvent
https://www.wikidata.org/wiki/Q89486193
9-27.1
For a solvent in a solution, quotient of the absolute activity and that of the pure substance at the same temperature and pressure.
ThermalConductivity
At a point fixed in a medium with a temperature field, scalar quantity λ characterizing the ability of the medium to transmit heat through a surface element containing that point: φ = −λ grad T, where φ is the density of heat flow rate and T is thermodynamic temperature.
In an anisotropic medium, thermal conductivity is a tensor quantity.
ThermalConductivity
https://qudt.org/vocab/quantitykind/ThermalConductivity
https://www.wikidata.org/wiki/Q487005
https://www.electropedia.org/iev/iev.nsf/display?openform&ievref=113-04-38
https://dbpedia.org/page/Thermal_conductivity
5-9
At a point fixed in a medium with a temperature field, scalar quantity λ characterizing the ability of the medium to transmit heat through a surface element containing that point: φ = −λ grad T, where φ is the density of heat flow rate and T is thermodynamic temperature.
URL
The term "Uniform Resource Locator" (URL) refers to the subset of URIs that, in addition to identifying a resource, provide a means of locating the resource by describing its primary access mechanism (e.g., its network "location").
URL
The term "Uniform Resource Locator" (URL) refers to the subset of URIs that, in addition to identifying a resource, provide a means of locating the resource by describing its primary access mechanism (e.g., its network "location").
Annealing
heat treatment consisting of heating and soaking at a suitable temperature, followed by cooling under conditions such that, after return to ambient temperature, the metal will be in a structural state closer to that of equilibrium
Annealing
heat treatment consisting of heating and soaking at a suitable temperature, followed by cooling under conditions such that, after return to ambient temperature, the metal will be in a structural state closer to that of equilibrium
T+1 L0 M0 I+1 Θ0 N0 J0
ElectricChargeUnit
The class of units with dimensionality 'ElectricCharge'.
ElectricChargeUnit
The class of units with dimensionality 'ElectricCharge'.
ApparentPower
RMS value voltage multiplied by rms value of electric current.
ApparentPower
https://qudt.org/vocab/quantitykind/ApparentPower
https://www.wikidata.org/wiki/Q1930258
https://www.electropedia.org/iev/iev.nsf/display?openform&ievref=131-11-41
6-57
RMS value voltage multiplied by rms value of electric current.
Power
Rate of transfer of energy per unit time.
Power
http://qudt.org/vocab/quantitykind/Power
4-27
6-45
Rate of transfer of energy per unit time.
https://doi.org/10.1351/goldbook.P04792
Ag
SilverSymbol
The symbol that stands for the silver atom.
SilverSymbol
The symbol that stands for the silver atom.
Flanging
Flanging
IterativeStep
A workflow whose output can be used as input for another workflow of the same type, iteratively, within the framework of a larger workflow.
Jacobi method numerical step, involving the multiplication between a matrix A and a vector x, whose result is used to update the vector x.
IterativeStep
A workflow whose output can be used as input for another workflow of the same type, iteratively, within the framework of a larger workflow.
Ho
HolmiumSymbol
The symbol that stands for the holmium atom.
HolmiumSymbol
The symbol that stands for the holmium atom.
1.0
0.0
PerWeber
Per Weber unit.
http://qudt.org/2.1/vocab/unit
http://www.iso.org/iso/catalogue_detail?csnumber=31897
ReciprocalWeber
PerWeber
http://qudt.org/vocab/unit/PER-WB
Wb-1
/Wb
Per Weber unit.
T+2 L-2 M-1 I+1 Θ0 N0 J0
ElectricCurrentPerEnergyUnit
The class of units with dimensionality 'ElectricCurrentPerEnergy'.
ElectricCurrentPerEnergyUnit
The class of units with dimensionality 'ElectricCurrentPerEnergy'.
Gustatory
Gustatory
ProductionEngineering
ProductionEngineering
ProcessEngineeringProcess
Deals with entities that have a undefined shape. Undefined means that the actual shape of the entity that is produced is not relevant for the definition of the process.
In fact, everything has a shape, but in process engineering this is not relevant.
e.g. the fact that steel comes in sheets is not relevant for the definition of steel material generated in a steel-making process.
ProcessEngineeringProcess
Deals with entities that have a undefined shape. Undefined means that the actual shape of the entity that is produced is not relevant for the definition of the process.
In fact, everything has a shape, but in process engineering this is not relevant.
e.g. the fact that steel comes in sheets is not relevant for the definition of steel material generated in a steel-making process.
https://de.wikipedia.org/wiki/Verfahrenstechnik
SpecificVolume
inverse of the mass density ρ, thus v = 1/ρ.
MassicVolume
SpecificVolume
https://qudt.org/vocab/quantitykind/SpecificVolume
https://www.wikidata.org/wiki/Q683556
https://www.electropedia.org/iev/iev.nsf/display?openform&ievref=113-03-09
4-3
inverse of the mass density ρ, thus v = 1/ρ.
https://doi.org/10.1351/goldbook.S05807
Work
Product of force and displacement.
Work
http://qudt.org/vocab/quantitykind/Work
4-28.4
Product of force and displacement.
https://doi.org/10.1351/goldbook.W06684
251.07959
98
CaliforniumAtom
Atom subclass for californium.
CaliforniumAtom
Atom subclass for californium.
MathematicalFormula
A mathematical string that express a relation between the elements in one set X to elements in another set Y.
The set X is called domain and the set Y range or codomain.
MathematicalFormula
A mathematical string that express a relation between the elements in one set X to elements in another set Y.
SymbolicConstruct
A symbolic entity made of other symbolic entities according to a specific spatial configuration.
This class collects individuals that represents arrangements of strings, or other symbolic compositions, without any particular predifined arrangement schema.
SymbolicConstruct
A symbolic entity made of other symbolic entities according to a specific spatial configuration.
This class collects individuals that represents arrangements of strings, or other symbolic compositions, without any particular predifined arrangement schema.
EndStep
The final step of a workflow.
There may be more than one end task, if they run in parallel leading to more than one output.
EndStep
The final step of a workflow.
There may be more than one end task, if they run in parallel leading to more than one output.
Step
A step is part of a specific granularity level for the workflow description, as composition of tasks.
A task that is a well formed tile of a workflow, according to a reductionistic description.
Step
A task that is a well formed tile of a workflow, according to a reductionistic description.
A step is part of a specific granularity level for the workflow description, as composition of tasks.
EndTile
EndTile
ExactConstant
Physical constant used to define a unit system. Hence, when expressed in that unit system they have an exact value with no associated uncertainty.
ExactConstant
Physical constant used to define a unit system. Hence, when expressed in that unit system they have an exact value with no associated uncertainty.
MolecularEntity
Molecular entity is used as a general term for singular entities, irrespective of their nature, while chemical species stands for sets or ensembles of molecular entities.
Note that the name of a compound may refer to the respective molecular entity or to the chemical species,
Any constitutionally or isotopically distinct atom, molecule, ion, ion pair, radical, radical ion, complex, conformer etc., identifiable as a separately distinguishable entity that can undergo a chemical reaction.
Molecular entity is used as a general term for singular entities, irrespective of their nature, while chemical species stands for sets or ensembles of molecular entities.
Note that the name of a compound may refer to the respective molecular entity or to the chemical species,
https://goldbook.iupac.org/terms/view/M03986
ChemicalEntity
Hydrogen molecule is an adequate definition of a certain molecular entity for some purposes, whereas for others it is necessary to distinguish the electronic state and/or vibrational state and/or nuclear spin, etc. of the hydrogen molecule.
Methane, may mean a single molecule of CH4 (molecular entity) or a molar amount, specified or not (chemical species), participating in a reaction. The degree of precision necessary to describe a molecular entity depends on the context.
Hydrogen molecule is an adequate definition of a certain molecular entity for some purposes, whereas for others it is necessary to distinguish the electronic state and/or vibrational state and/or nuclear spin, etc. of the hydrogen molecule.
Methane, may mean a single molecule of CH4 (molecular entity) or a molar amount, specified or not (chemical species), participating in a reaction. The degree of precision necessary to describe a molecular entity depends on the context.
MolecularEntity
Any constitutionally or isotopically distinct atom, molecule, ion, ion pair, radical, radical ion, complex, conformer etc., identifiable as a separately distinguishable entity that can undergo a chemical reaction.
Molecular entity is used as a general term for singular entities, irrespective of their nature, while chemical species stands for sets or ensembles of molecular entities.
Note that the name of a compound may refer to the respective molecular entity or to the chemical species,
This concept is strictly related to chemistry. For this reason an atom can be considered the smallest entity that can be considered "molecular", including nucleus when they are seen as ions (e.g. H⁺, He⁺⁺).
ElementaryPhoton
A boson with spin of 1 that carries electromagnetism.
ElementaryPhoton
A boson with spin of 1 that carries electromagnetism.
T
1000000000000.0
Tera
SI prefix who's value is 1e12.
Tera
SI prefix who's value is 1e12.
SparkErosion
A manufacturing process in which metallic material is anodically dissolved under the influence of an electric current and an electrolyte solution. The current flow can be caused either by connection to an external current source or due to local element formation on the workpiece (etching).
elektrochemisches Abtragen
SparkErosion
Ablation
Manufacturing by separating particles of material from a solid body by non-mechanical means. Ablation refers both to the removal of layers of material and to the separation of workpiece parts. The production process of ablation is considered in its stationary instantaneous state, independently of the application of auxiliary processes necessary to initiate the process. Ablation is divided into three subgroups according to the order point of view (OGP) "process in the effective zone on the surface of the workpiece": - thermal ablation; - chemical ablation; - electrochemical ablation.
Abtragen
Ablation
T0 L+1 M0 I0 Θ0 N0 J0
LengthUnit
The class of units with dimensionality 'Length'.
LengthUnit
The class of units with dimensionality 'Length'.
1000000000000000.0
PetaPrefixedUnit
Superclass for all units prefixed with "peta" (1e15).
PetaPrefixedUnit
Superclass for all units prefixed with "peta" (1e15).
ActivePower
Average power over a period.
ActivePower
https://qudt.org/vocab/quantitykind/ActivePower
https://www.wikidata.org/wiki/Q20820042
https://www.electropedia.org/iev/iev.nsf/display?openform&ievref=131-11-42
6-56
Average power over a period.
T0 L0 M0 I+1 Θ0 N0 J0
ElectricCurrentUnit
The class of units with dimensionality 'ElectricCurrent'.
ElectricCurrentUnit
The class of units with dimensionality 'ElectricCurrent'.
FundamentalPhysicalSystem
A causal system that is the representation of a Feynman diagram, where quantum represents the real particles entering and exiting the system.
A fundamental physical process is made of one or more standard particles as input, and one or more standard particles as output, where each input is direct cause of each output.
Each fundamental physical phenomena refers to a Feynman diagram, hence is made at least of three standard model particles.
This requirement implies that a physical phenomena is either a decay, annihilation, interaction, collapse or creation phenomena (fundamental) or a composition of them (non-fundamental).
A fundamental system is expressed as a complete bipartite directed graph K(m,n) of quantums, m being the number of originating quantums, and n being the receiving quantums.
FundamentalPhysicalSystem
A fundamental physical process is made of one or more standard particles as input, and one or more standard particles as output, where each input is direct cause of each output.
Each fundamental physical phenomena refers to a Feynman diagram, hence is made at least of three standard model particles.
This requirement implies that a physical phenomena is either a decay, annihilation, interaction, collapse or creation phenomena (fundamental) or a composition of them (non-fundamental).
A causal system that is the representation of a Feynman diagram, where quantum represents the real particles entering and exiting the system.
A fundamental system is expressed as a complete bipartite directed graph K(m,n) of quantums, m being the number of originating quantums, and n being the receiving quantums.
CausalSystem
A causal system provides the most general concept of system, being a union of causal structures interacting together. In its most simple form, a causal system is an interlacement of causal paths (the most simple structure type).
A causal system is always a spatial-like structure, and is represented as a multiple topologically orderable direct acyclic graph, with quanta as nodes and causality relations as edges.
The class of individuals representing a causal system.
A electron binded by a nucleus.
CausalSystem
A causal system provides the most general concept of system, being a union of causal structures interacting together. In its most simple form, a causal system is an interlacement of causal paths (the most simple structure type).
A causal system is always a spatial-like structure, and is represented as a multiple topologically orderable direct acyclic graph, with quanta as nodes and causality relations as edges.
The class of individuals representing a causal system.
S
Siemens
SI unit for electrical conductance.
Siemens is the SI unit of electric conductance, susceptance, and admittance. The most important property of a conductor is the amount of current it will carry when a voltage is applied. Current flow is opposed by resistance in all circuits, and by also by reactance and impedance in alternating current circuits. Conductance, susceptance, and admittance are the inverses of resistance, reactance, and impedance, respectively. To measure these properties, the siemens is the reciprocal of the ohm. In other words, the conductance, susceptance, or admittance, in siemens, is simply 1 divided by the resistance, reactance or impedance, respectively, in ohms. The unit is named for the German electrical engineer Werner von Siemens (1816-1892).
-- QUDT
Siemens
SIE
http://qudt.org/vocab/unit/S
S
SI unit for electrical conductance.
S = A/V = F/s
Siemens is the SI unit of electric conductance, susceptance, and admittance. The most important property of a conductor is the amount of current it will carry when a voltage is applied. Current flow is opposed by resistance in all circuits, and by also by reactance and impedance in alternating current circuits. Conductance, susceptance, and admittance are the inverses of resistance, reactance, and impedance, respectively. To measure these properties, the siemens is the reciprocal of the ohm. In other words, the conductance, susceptance, or admittance, in siemens, is simply 1 divided by the resistance, reactance or impedance, respectively, in ohms. The unit is named for the German electrical engineer Werner von Siemens (1816-1892).
-- QUDT
https://en.wikipedia.org/wiki/Siemens_(unit)
T+3 L-2 M-1 I+2 Θ0 N0 J0
ElectricConductanceUnit
The class of units with dimensionality 'ElectricConductance'.
ElectricConductanceUnit
The class of units with dimensionality 'ElectricConductance'.
Tile
A causal object that is direct part of a tessellation.
Tile
A causal object that is direct part of a tessellation.
SIAccepted
Non-SI unit that has been accepted by SI to be used together with the SI system.
SIAccepted
Non-SI unit that has been accepted by SI to be used together with the SI system.
0.01
0.0
SquareDeciMetre
0.1-fold of the power of the SI base unit metre with the exponent 2
-- QUDT
http://qudt.org/2.1/vocab/unit
Square Decimetre
SquareDeciMetre
http://qudt.org/vocab/unit/DeciM2
dm2
dm²
0.1-fold of the power of the SI base unit metre with the exponent 2
-- QUDT
T0 L+2 M0 I0 Θ0 N0 J0
AreaUnit
The class of units with dimensionality 'Area'.
AreaUnit
The class of units with dimensionality 'Area'.
MeanFreePathOfPhonons
average distance that phonons travel between two successive interactions
MeanFreePathOfPhonons
https://qudt.org/vocab/quantitykind/PhononMeanFreePath
https://www.wikidata.org/wiki/Q105672255
12-15.1
average distance that phonons travel between two successive interactions
MeanFreePath
The mean free path may thus be specified either for all interactions, i.e. total mean free path, or for particular types of interaction such as scattering, capture, or ionization.
in a given medium, average distance that particles of a specified type travel between successive interactions of a specified type.
MeanFreePath
https://qudt.org/vocab/quantitykind/MeanFreePath
https://www.wikidata.org/wiki/Q756307
https://www.electropedia.org/iev/iev.nsf/display?openform&ievref=113-06-37
9-38
in a given medium, average distance that particles of a specified type travel between successive interactions of a specified type.
https://doi.org/10.1351/goldbook.M03778
T-1 L0 M0 I0 Θ0 N+1 J0
CatalyticActivityUnit
The class of units with dimensionality 'CatalyticActivity'.
CatalyticActivityUnit
The class of units with dimensionality 'CatalyticActivity'.
AbsoluteActivity
The exponential of the ratio of the chemical potential to R*T where R is the gas constant and T the thermodynamic temperature.
AbsoluteActivity
https://qudt.org/vocab/quantitykind/AbsoluteActivity
https://www.wikidata.org/wiki/Q56638155
9-18
The exponential of the ratio of the chemical potential to R*T where R is the gas constant and T the thermodynamic temperature.
https://goldbook.iupac.org/terms/view/A00019
IsentropicCompressibility
Quantity characterizing the relative variation of volume V with pressure p at constant entropy.
The coherent SI unit of isentropic compressibility is pascal to the power minus one, 1/Pa.
IsentropicCompressibility
https://qudt.org/vocab/quantitykind/IsentropicCompressibility
https://www.wikidata.org/wiki/Q2990695
https://www.electropedia.org/iev/iev.nsf/display?openform&ievref=113-04-32
5-5.2
Quantity characterizing the relative variation of volume V with pressure p at constant entropy.
The coherent SI unit of isentropic compressibility is pascal to the power minus one, 1/Pa.
Compressibility
Measure of the relative volume change of a fluid or solid as a response to a pressure change.
Compressibility
https://qudt.org/vocab/quantitykind/Compressibility
https://www.wikidata.org/wiki/Q8067817
https://www.electropedia.org/iev/iev.nsf/display?openform&ievref=113-03-70
4-20
Measure of the relative volume change of a fluid or solid as a response to a pressure change.
HelmholtzEnergy
Internal energy minus the product of thermodynamic temperature and entropy.
HelmholtzFreeEnergy
HelmholtzEnergy
https://www.wikidata.org/wiki/Q865821
https://www.electropedia.org/iev/iev.nsf/display?openform&ievref=113-04-24
5-20.4
Internal energy minus the product of thermodynamic temperature and entropy.
https://doi.org/10.1351/goldbook.H02772
DampingCoefficient
Inverse of the time constant of an exponentially varying quantity.
DampingCoefficient
https://www.electropedia.org/iev/iev.nsf/display?openform&ievref=103-05-24
3-24
Inverse of the time constant of an exponentially varying quantity.
Rate
Quotient of a quantity by a duration.
Activity
Specific absorption rate (SAR)
Rate of rise
Sampling rate
Modulation rate
Fading rate
Rain rate
Rate
112-03-18
Quotient of a quantity by a duration.
ChemicalSubstance
A substance is always composed of more than one molecular entity. It lays in the continuum or mesoscopic domain.
Matter of constant composition best characterized by the entities (molecules, formula units, atoms) it is composed of.
ChemicalSubstance
Matter of constant composition best characterized by the entities (molecules, formula units, atoms) it is composed of.
https://doi.org/10.1351/goldbook.C01039
Substance
A composite physical object made of fermions (i.e. having mass and occupying space).
Substance
A composite physical object made of fermions (i.e. having mass and occupying space).
ReactivePower
Imaginary part of the complex power.
ReactivePower
https://qudt.org/vocab/quantitykind/ReactivePower
https://www.wikidata.org/wiki/Q2144613
https://www.electropedia.org/iev/iev.nsf/display?openform&ievref=131-11-44
6-60
Imaginary part of the complex power.
1.157407e-08
0.0
LitrePerDay
unit litre divided by the unit day
-- QUDT
http://qudt.org/2.1/vocab/unit
Litre Per Day
LitrePerDay
http://qudt.org/vocab/unit/L-PER-DAY
L.d-1
L/d
L/day
unit litre divided by the unit day
-- QUDT
T-1 L+3 M0 I0 Θ0 N0 J0
VolumePerTimeUnit
The class of units with dimensionality 'VolumePerTime'.
VolumePerTimeUnit
The class of units with dimensionality 'VolumePerTime'.
Vapor
A liquid aerosol composed of water droplets in air or another gas.
Vapor
A liquid aerosol composed of water droplets in air or another gas.
LiquidAerosol
An aerosol composed of liquid droplets in air or another gas.
LiquidAerosol
An aerosol composed of liquid droplets in air or another gas.
48
112.414
CadmiumAtom
Atom subclass for cadmium.
CadmiumAtom
Atom subclass for cadmium.
192.217
77
IridiumAtom
Atom subclass for iridium.
IridiumAtom
Atom subclass for iridium.
1.0
0.0
SquareMetrePerSteradianJoule
Square metre per steradian and Joule.
http://qudt.org/2.1/vocab/unit
SquareMetrePerSteradianJoule
http://qudt.org/vocab/unit/M2-PER-SR-J
m2.sr-1.J-1
m²/(sr⋅J)
Square metre per steradian and Joule.
T+2 L0 M-1 I0 Θ0 N0 J0
SquareTimePerMassUnit
The class of units with dimensionality 'SquareTimePerMass'.
SquareTimePerMassUnit
The class of units with dimensionality 'SquareTimePerMass'.
ElementaryQuark
An elementary fermionic particle that is the fundamental constituent of matter.
ElementaryQuark
An elementary fermionic particle that is the fundamental constituent of matter.
ElementaryFermion
An elementary particle of a fundamental fermionic type.
ElementaryFermion
An elementary particle of a fundamental fermionic type.
1000.0
0.0
NewtonPerMilliMetre
SI derived unit newton divided by the 0.001-fold of the SI base unit metre
-- QUDT
http://qudt.org/2.1/vocab/unit
Newton Per Millimetre
NewtonPerMilliMetre
http://qudt.org/vocab/unit/N-PER-MilliM
N.mm-1
N/mm
SI derived unit newton divided by the 0.001-fold of the SI base unit metre
-- QUDT
InjectionMolding
InjectionMolding
ArchetypeJoin
Archetype join attaches two workpiece with geometrically defined shape together, using supplementary workpiece made of amorphous material (e.g. powder).
ArchetypeJoin
Archetype join attaches two workpiece with geometrically defined shape together, using supplementary workpiece made of amorphous material (e.g. powder).
FormingFromPlastic
FormingFromPlastic
1.0
0.0
NewtonMetreSecond
The SI derived unit of angular momentum.
-- QUDT
http://qudt.org/2.1/vocab/unit
Newton Metre Second
NewtonMetreSecond
http://qudt.org/vocab/unit/N-M-SEC
N.m.s
N⋅m⋅s
The SI derived unit of angular momentum.
-- QUDT
http://en.wikipedia.org/wiki/SI_derived_unit
GravitySintering
ISO 3252:2019 Powder metallurgy
loose-powder sintering, gravity sintering: sintering of uncompacted powder
Loose-powderSintering
PressurelessSintering
GravitySintering
0.000277778
0.0
MolePerHour
SI base unit mole divided by the unit for time hour
-- QUDT
http://qudt.org/2.1/vocab/unit
Mole Per Hour
MolePerHour
http://qudt.org/vocab/unit/MOL-PER-HR
mol.h-1
mol/hr
SI base unit mole divided by the unit for time hour
-- QUDT
AngularReciprocalLatticeVector
Vector whose scalar products with all fundamental lattice vectors are integral multiples of 2pi.
AngularReciprocalLatticeVector
https://qudt.org/vocab/quantitykind/AngularReciprocalLatticeVector
https://www.wikidata.org/wiki/Q105475278
12-2.1
Vector whose scalar products with all fundamental lattice vectors are integral multiples of 2pi.
StoichiometricNumberOfSubstance
For substance B, an integer number or a simple fraction, being negative for a reactant and positive for a product, occurring in the expression for a chemical reaction.
The factors 1/2 and 3/2 in the chemical reaction formula below are stoicheiometric mumbers of substance.
(1/2)N2 + (3/2)H2 = NH3
StoichiometricNumberOfSubstance
https://qudt.org/vocab/quantitykind/StoichiometricNumber
https://www.wikidata.org/wiki/Q95443720
https://www.electropedia.org/iev/iev.nsf/display?openform&ievref=114-01-22
9-29
For substance B, an integer number or a simple fraction, being negative for a reactant and positive for a product, occurring in the expression for a chemical reaction.
https://doi.org/10.1351/goldbook.S06025
Workflow
A procedure that has at least two procedures (tasks) as proper parts.
Workflow
A procedure that has at least two procedures (tasks) as proper parts.
126.90447
53
IodineAtom
Atom subclass for iodine.
IodineAtom
Atom subclass for iodine.
a
1e-18
Atto
SI prefix who's value is 1e-18.
Atto
SI prefix who's value is 1e-18.
FundamentalLatticeVector
Fundamental translation vector for the crystal lattice.
FundamentalLatticeVector
https://qudt.org/vocab/quantitykind/FundamentalLatticeVector
https://www.wikidata.org/wiki/Q105451063
12-1.2
Fundamental translation vector for the crystal lattice.
1.0
0.0
SquareCoulombSquareMetrePerJoule
"Square Coulomb Square Meter per Joule" is a unit for 'Polarizability' expressed as C² m² J⁻¹.
-- QUDT
http://qudt.org/2.1/vocab/unit
Square Coulomb Square Metre per Joule
SquareCoulombSquareMetrePerJoule
http://qudt.org/vocab/unit/C2-M2-PER-J
C2.m2.J-1
C2.m2/J
C²⋅m²/J
"Square Coulomb Square Meter per Joule" is a unit for 'Polarizability' expressed as C² m² J⁻¹.
-- QUDT
T+4 L0 M-1 I+2 Θ0 N0 J0
SquareCurrentQuarticTimePerMassUnit
The class of units with dimensionality 'SquareCurrentQuarticTimePerMass'.
SquareCurrentQuarticTimePerMassUnit
The class of units with dimensionality 'SquareCurrentQuarticTimePerMass'.
SpecificEnergyImparted
In nuclear physics, energy imparted per mass.
SpecificEnergyImparted
https://qudt.org/vocab/quantitykind/SpecificEnergyImparted
https://www.wikidata.org/wiki/Q99566195
10-81.2
In nuclear physics, energy imparted per mass.
SpecificEnergy
Energy per unit mass
SpecificEnergy
https://qudt.org/vocab/quantitykind/SpecificEnergy
https://www.wikidata.org/wiki/Q3023293
https://dbpedia.org/page/Specific_energy
5-21.1
Energy per unit mass
https://en.wikipedia.org/wiki/Specific_energy
Curve
A one-manyfold with two unconnected end points.
Curve
A one-manyfold with two unconnected end points.
StatisticalWeightOfSubsystem
Number of different microstates in a subsystem.
StatisticalWeightOfSubsystem
https://www.wikidata.org/wiki/Q96207431
9-36.1
Number of different microstates in a subsystem.
SpatialTile
A direct part that is obtained by partitioning a whole purely in spatial parts.
SpatialTile
A direct part that is obtained by partitioning a whole purely in spatial parts.
0.0
1.0
OhmMetre
Ohm metre.
http://qudt.org/2.1/vocab/unit
http://www.iso.org/iso/catalogue_detail?csnumber=31897
OhmMetre
http://qudt.org/vocab/unit/OHM-M
Ohm.m
Ω⋅m
Ohm metre.
T-3 L+3 M+1 I-2 Θ0 N0 J0
ElectricResistivityUnit
The class of units with dimensionality 'ElectricResistivity'.
ElectricResistivityUnit
The class of units with dimensionality 'ElectricResistivity'.
DensityOfVibrationalStates
quotient of the number of vibrational modes in an infinitesimal interval of angular frequency, and the product of the width of that interval and volume
DensityOfVibrationalStates
https://qudt.org/vocab/quantitykind/DensityOfStates
https://www.wikidata.org/wiki/Q105637294
12-12
quotient of the number of vibrational modes in an infinitesimal interval of angular frequency, and the product of the width of that interval and volume
Fermion
A physical particle with half odd integer spin (1/2, 3/2, etc...) that follows Fermi-Dirac statistics.
Fermion
A physical particle with half odd integer spin (1/2, 3/2, etc...) that follows Fermi-Dirac statistics.
https://en.wikipedia.org/wiki/Fermion
Boson
A physical particle with integer spin that follows Bose–Einstein statistics.
Boson
A physical particle with integer spin that follows Bose–Einstein statistics.
https://en.wikipedia.org/wiki/Boson
PhysicalPhenomenon
The class of individuals standing for causally non-convex interacting systems.
PhysicalPhenomenon
The class of individuals standing for causally non-convex interacting systems.
PhysicalObject
It is natural to define entities made or more than one smaller parts as object according to some unity criteria. One of the most general one applicable to causal interacting systems is to ask that all the quantum parts of the system are part of elementaries whose paths start and end within the entitiy. We call this causal convexity. In other words, causal convexity excludes all quantums that leave the system (no more interacting), or that are not yet part of it (not yet interacting).
So, a photon leaving a body is not part of a convex system, while a real photon that is the carrier of clasical electromagnetic interaction between two molecular parts of the body, is part of the convex body.
A physical phenomenon is defined as a causally non-convex interacting system, complement of causally convex interacting system.
The class of individuals standing for causally convex interacting systems.
PhysicalObject
It is natural to define entities made or more than one smaller parts as object according to some unity criteria. One of the most general one applicable to causal interacting systems is to ask that all the quantum parts of the system are part of elementaries whose paths start and end within the entitiy. We call this causal convexity. In other words, causal convexity excludes all quantums that leave the system (no more interacting), or that are not yet part of it (not yet interacting).
So, a photon leaving a body is not part of a convex system, while a real photon that is the carrier of clasical electromagnetic interaction between two molecular parts of the body, is part of the convex body.
A physical phenomenon is defined as a causally non-convex interacting system, complement of causally convex interacting system.
The class of individuals standing for causally convex interacting systems.
82
207.2
LeadAtom
Atom subclass for lead.
LeadAtom
Atom subclass for lead.
TechnologyProcess
Class that includes the application of scientific knowledge, tools and techniques in order to transform a precursor object (ex. conversion of material) following a practic purpose.
Conversion of materials and assembly of components for the manufacture of products
Technology is the application of knowledge for achieving practical goals in a reproducible way.
Technology refers to methods, systems, and devices which are the result of scientific knowledge being used for practical purposes.
application of scientific knowledge, tools, techniques, crafts or systems in order to solve a problem or to achieve an objective which can result in a product or process
application of scientific knowledge, tools, techniques, crafts, systems or methods of organization in order to solve a problem or achieve an objective
ProductionEngineeringProcess
TechnologyProcess
Class that includes the application of scientific knowledge, tools and techniques in order to transform a precursor object (ex. conversion of material) following a practic purpose.
1.0
0.0
MetreKelvin
`Meter Kelvin` is a unit for 'Length Temperature' expressed as m K.
-- QUDT
http://qudt.org/2.1/vocab/unit
Metre Kelvin
MetreKelvin
http://qudt.org/vocab/unit/M-K
m.K
m⋅K
`Meter Kelvin` is a unit for 'Length Temperature' expressed as m K.
-- QUDT
ScalarMagneticPotential
Scalar potential of an irrotational magnetic field strength.
ScalarMagneticPotential
https://www.wikidata.org/wiki/Q17162107
https://www.electropedia.org/iev/iev.nsf/display?openform&ievref=121-11-58
6-37.1
Scalar potential of an irrotational magnetic field strength.
1.0
0.0
HenryPerOhm
SI derived unit henry divided by the SI derived unit ohm
-- QUDT
http://qudt.org/2.1/vocab/unit
Henry Per Ohm
HenryPerOhm
http://qudt.org/vocab/unit/H-PER-OHM
H.Ohm-1
H/Ω
SI derived unit henry divided by the SI derived unit ohm
-- QUDT
HardeningByForming
Verfestigen durch Umformen
HardeningByForming
MaterialTreatment
esce workpiece
Has shaped bodies as input and output.
The processing of a material aimed to transform its structure by means of any type of treatment, without involving relevant synthesis phenomena.
DIN 8580:2020
Stoffeigenschaft ändern
WorkPieceTreatment
MaterialTreatment
The processing of a material aimed to transform its structure by means of any type of treatment, without involving relevant synthesis phenomena.
Manufacturing by changing the properties of the material of which a workpiece is made, which is done, among other things, by changes in the submicroscopic or atomic range, e.g. by diffusion of atoms, generation and movement of dislocations in the atomic lattice or chemical reactions, and where unavoidable changes in shape are not part of the essence of these processes.
Has shaped bodies as input and output.
IRI
An Internationalized Resource Identifier (IRI) is a compact sequence of characters that identifies an abstract or physical resource. It is similar to URI, but greatly extends the allowed character set from ASCII to the Universal Character Set (Unicode/ISO 10646)..
IRIs are commonly used as identifiers for ontological entities, although the extended unicode character set is rarely used.
https://en.wiktionary.org/wiki/Ῥόδος
IRI
An Internationalized Resource Identifier (IRI) is a compact sequence of characters that identifies an abstract or physical resource. It is similar to URI, but greatly extends the allowed character set from ASCII to the Universal Character Set (Unicode/ISO 10646)..
IRIs are commonly used as identifiers for ontological entities, although the extended unicode character set is rarely used.
https://en.wikipedia.org/wiki/Internationalized_Resource_Identifier
SymbolicData
A symbolic data is a a data that is rooted on some symbolic based encoding, such as floating point numbers, strings, integer. They are not to be intended as mathematical entities (even if they may be interpreted as such) but as syntactic structures (datastructures or datatypes) based on concatenated tokens (or symbols, letters) that can deliver data.
The class for entities which stands for data expressed using a symbolic encoding.
https://www.w3.org/TR/2012/REC-xmlschema11-2-20120405/#built-in-datatypes
https://www.w3.org/TR/rdf11-concepts/
https://www.w3.org/TR/2012/REC-owl2-syntax-20121211/#Datatype_Maps
https://www.w3schools.com/xml/schema_dtypes_numeric.asp
LiteralData
SymbolicData
A symbolic data is a a data that is rooted on some symbolic based encoding, such as floating point numbers, strings, integer. They are not to be intended as mathematical entities (even if they may be interpreted as such) but as syntactic structures (datastructures or datatypes) based on concatenated tokens (or symbols, letters) that can deliver data.
The class for entities which stands for data expressed using a symbolic encoding.
ResourceIdentifier
A formal computer-interpretable identifier of a system resource.
ResourceIdentifier
A formal computer-interpretable identifier of a system resource.
ModulusOfElasticity
Mechanical property of linear elastic solid materials.
YoungsModulus
ModulusOfElasticity
https://www.wikidata.org/wiki/Q2091584
https://www.electropedia.org/iev/iev.nsf/display?openform&ievref=113-03-67
4-19.1
Mechanical property of linear elastic solid materials.
https://doi.org/10.1351/goldbook.M03966
NuclearRadius
Conventional radius of sphere in which the nuclear matter is included,
NuclearRadius
https://qudt.org/vocab/quantitykind/NuclearRadius
https://www.wikidata.org/wiki/Q3535676
10-19.1
Conventional radius of sphere in which the nuclear matter is included,
PhaseSpeedOfElectromagneticWaves
Angular frequency divided by angular wavenumber.
PhaseSpeedOfElectromagneticWaves
https://qudt.org/vocab/quantitykind/ElectromagneticWavePhaseSpeed
https://www.wikidata.org/wiki/Q77990619
6-35.1
Angular frequency divided by angular wavenumber.
Speed
Length per unit time.
Speed in the absolute value of the velocity.
Speed
http://qudt.org/vocab/quantitykind/Speed
3-8.2
Length per unit time.
Speed in the absolute value of the velocity.
https://doi.org/10.1351/goldbook.S05852
1.0
0.0
JouleSquareMetre
Joule square metre.
http://qudt.org/2.1/vocab/unit
JouleSquareMetre
http://qudt.org/vocab/unit/J-M2
J.m2
J⋅m²
Joule square metre.
T-2 L+4 M+1 I0 Θ0 N0 J0
EnergyAreaUnit
The class of units with dimensionality 'EnergyArea'.
EnergyAreaUnit
The class of units with dimensionality 'EnergyArea'.
Se
SeleniumSymbol
The symbol that stands for the selenium atom.
SeleniumSymbol
The symbol that stands for the selenium atom.
T-4 L+2 M+1 I-1 Θ0 N0 J0
ElectricPotentialPerTimeUnit
The class of units with dimensionality 'ElectricPotentialPerTime'.
ElectricPotentialPerTimeUnit
The class of units with dimensionality 'ElectricPotentialPerTime'.
ExchangeIntegral
constituent of the interaction energy between the spins of adjacent electrons in matter arising from the overlap of electron state functions
ExchangeIntegral
https://qudt.org/vocab/quantitykind/ExchangeIntegral
https://www.wikidata.org/wiki/Q10882959
12-34
constituent of the interaction energy between the spins of adjacent electrons in matter arising from the overlap of electron state functions
1.0
0.0
MetrePerSquareSecond
The `meter per Square second` is the unit of acceleration in the International System of Units (SI). As a derived unit it is composed from the SI base units of length, the metre, and the standard unit of time, the second. Its symbol is written in several forms as m/s², or m s⁻². As acceleration, the unit is interpreted physically as change in velocity or speed per time interval, that is, `metre per second per second`.
-- QUDT
http://qudt.org/2.1/vocab/unit
Metre per Square Second
MetrePerSquareSecond
http://qudt.org/vocab/unit/M-PER-SEC2
m.s-2
m/s2
m/s²
The `meter per Square second` is the unit of acceleration in the International System of Units (SI). As a derived unit it is composed from the SI base units of length, the metre, and the standard unit of time, the second. Its symbol is written in several forms as m/s², or m s⁻². As acceleration, the unit is interpreted physically as change in velocity or speed per time interval, that is, `metre per second per second`.
-- QUDT
T-2 L+1 M0 I0 Θ0 N0 J0
AccelerationUnit
The class of units with dimensionality 'Acceleration'.
AccelerationUnit
The class of units with dimensionality 'Acceleration'.
Symbol
Subclasses of 'Symbol' are alphabets, in formal languages terminology. A 'Symbol' is atomic for that alphabet, i.e. it has no parts that are symbols for the same alphabet.
e.g. a math symbol is not made of other math symbols
A Symbol may be a String in another language.
e.g. "Bq" is the symbol for Becquerel units when dealing with metrology, or a string of "B" and "q" symbols when dealing with characters.
The class of individuals that stand for an elementary mark of a specific symbolic code (alphabet).
AlphabeticEntity
The class of letter "A" is the symbol as idea and the letter A that you see on the screen is the mark that can be represented by an individual belonging to "A".
Symbol
The class of individuals that stand for an elementary mark of a specific symbolic code (alphabet).
Subclasses of 'Symbol' are alphabets, in formal languages terminology. A 'Symbol' is atomic for that alphabet, i.e. it has no parts that are symbols for the same alphabet.
e.g. a math symbol is not made of other math symbols
A Symbol may be a String in another language.
e.g. "Bq" is the symbol for Becquerel units when dealing with metrology, or a string of "B" and "q" symbols when dealing with characters.
Symbols of a formal language need not be symbols of anything. For instance there are logical constants which do not refer to any idea, but rather serve as a form of punctuation in the language (e.g. parentheses).
Symbols of a formal language must be capable of being specified without any reference to any interpretation of them.
(Wikipedia)
The class is the idea of the symbol, while the individual of that class stands for a specific mark (or token) of that idea.
Chemical
A language object that follows the syntactic rules used in the chemical field.
Chemical
A language object that follows the syntactic rules used in the chemical field.
T-2 L-2 M+1 I0 Θ0 N0 J0
MassPerSquareLengthSquareTimeUnit
The class of units with dimensionality 'MassPerSquareLengthSquareTime'.
MassPerSquareLengthSquareTimeUnit
The class of units with dimensionality 'MassPerSquareLengthSquareTime'.
1.0
0.0
KelvinPerSquareSecond
`Kelvin per Square Second` is a unit for 'Temperature Per Time Squared' expressed as K / s².
-- QUDT
http://qudt.org/2.1/vocab/unit
Kelvin per Square Second
KelvinPerSquareSecond
http://qudt.org/vocab/unit/K-PER-SEC2
K.s-2
K/s^2
K/s²
`Kelvin per Square Second` is a unit for 'Temperature Per Time Squared' expressed as K / s².
-- QUDT
T-2 L0 M0 I0 Θ+1 N0 J0
TemperaturePerSquareTimeUnit
The class of units with dimensionality 'TemperaturePerSquareTime'.
TemperaturePerSquareTimeUnit
The class of units with dimensionality 'TemperaturePerSquareTime'.
1.0
0.0
JoulePerKelvin
Joule Per Kelvin (J/K) is a unit in the category of Entropy. It is also known as joules per kelvin, joule/kelvin. This unit is commonly used in the SI unit system. Joule Per Kelvin (J/K) has a dimension of ML²T⁻²Q⁻¹ where M is mass, L is length, T is time, and Q is temperature. This unit is the standard SI unit in this category.
-- QUDT
http://qudt.org/2.1/vocab/unit
Joule per Kelvin
JoulePerKelvin
http://qudt.org/vocab/unit/J-PER-K
J.K-1
J/K
Joule Per Kelvin (J/K) is a unit in the category of Entropy. It is also known as joules per kelvin, joule/kelvin. This unit is commonly used in the SI unit system. Joule Per Kelvin (J/K) has a dimension of ML²T⁻²Q⁻¹ where M is mass, L is length, T is time, and Q is temperature. This unit is the standard SI unit in this category.
-- QUDT
196.966569
79
GoldAtom
Atom subclass for gold.
GoldAtom
Atom subclass for gold.
Cf
CaliforniumSymbol
The symbol that stands for the californium atom.
CaliforniumSymbol
The symbol that stands for the californium atom.
ConfigurationLanguage
A construction language used to write configuration files.
.ini files
Files in the standard .config directory on Unix systems.
ConfigurationLanguage
A construction language used to write configuration files.
https://en.wikipedia.org/wiki/Configuration_file#Configuration_languages
FormingFromPulp
FormingFromPulp
*
Multiplication
Multiplication
ArithmeticOperator
ArithmeticOperator
Bq
Becquerel
Radioactive decays per second.
SI unit for radioactive activity.
The SI derived unit of activity, usually meaning radioactivity. "Radioactivity" is caused when atoms disintegrate, ejecting energetic particles. One becquerel is the radiation caused by one disintegration per second; this is equivalent to about 27.0270 picocuries (pCi). The unit is named for a French physicist, Antoine-Henri Becquerel (1852-1908), the discoverer of radioactivity. Note: both the becquerel and the hertz are basically defined as one event per second, yet they measure different things. The hertz is used to measure the rates of events that happen periodically in a fixed and definite cycle. The becquerel is used to measure the rates of events that happen sporadically and unpredictably, not in a definite cycle.
-- QUDT
Becquerel
BQL
http://qudt.org/vocab/unit/BQ
Bq
http://dbpedia.org/resource/Becquerel
Radioactive decays per second.
SI unit for radioactive activity.
The SI derived unit of activity, usually meaning radioactivity. "Radioactivity" is caused when atoms disintegrate, ejecting energetic particles. One becquerel is the radiation caused by one disintegration per second; this is equivalent to about 27.0270 picocuries (pCi). The unit is named for a French physicist, Antoine-Henri Becquerel (1852-1908), the discoverer of radioactivity. Note: both the becquerel and the hertz are basically defined as one event per second, yet they measure different things. The hertz is used to measure the rates of events that happen periodically in a fixed and definite cycle. The becquerel is used to measure the rates of events that happen sporadically and unpredictably, not in a definite cycle.
-- QUDT
http://en.wikipedia.org/wiki/Becquerel?oldid=493710036
https://doi.org/10.1351/goldbook.B00624
QuinticMetre
Metre to the power of five.
http://qudt.org/2.1/vocab/unit
QuinticMetre
http://qudt.org/vocab/unit/M5
m⁵
Metre to the power of five.
T0 L+5 M0 I0 Θ0 N0 J0
SectionAreaIntegralUnit
The class of units with dimensionality 'SectionAreaIntegral'.
SectionAreaIntegralUnit
The class of units with dimensionality 'SectionAreaIntegral'.
1.0
0.0
Fraction
Fraction is a unit for 'Dimensionless Ratio' expressed as the value of the ratio itself.
-- QUDT
http://qudt.org/2.1/vocab/unit
Fraction
http://qudt.org/vocab/unit/FRACTION
÷
Fraction is a unit for 'Dimensionless Ratio' expressed as the value of the ratio itself.
-- QUDT
MolecularConcentration
Number of molecules of a substance in a mixture per volume.
MolecularConcentration
https://qudt.org/vocab/quantitykind/MolecularConcentration
https://www.wikidata.org/wiki/Q88865973
9-9.2
Number of molecules of a substance in a mixture per volume.
AtomisticModel
A physics-based model based on a physics equation describing the behaviour of atoms.
AtomisticModel
A physics-based model based on a physics equation describing the behaviour of atoms.
0.0
1.0
PerHenry
Reciprocal Henry.
http://qudt.org/2.1/vocab/unit
ReciprocalHenry
PerHenry
http://qudt.org/vocab/unit/PER-H
H-1
/H
Reciprocal Henry.
T+2 L-2 M-1 I+2 Θ0 N0 J0
MagneticReluctanceUnit
The class of units with dimensionality 'MagneticReluctance'.
MagneticReluctanceUnit
The class of units with dimensionality 'MagneticReluctance'.
114.818
49
IndiumAtom
Atom subclass for indium.
IndiumAtom
Atom subclass for indium.
DiffusionLength
In condensed matter physics, the square root of the product of diffusion coefficient and lifetime.
DiffusionLength
https://qudt.org/vocab/quantitykind/SolidStateDiffusionLength
https://www.wikidata.org/wiki/Q106097176
https://www.electropedia.org/iev/iev.nsf/display?openform&ievref=521-02-60
12-33
In condensed matter physics, the square root of the product of diffusion coefficient and lifetime.
1.0
0.0
WattPerSquareMetrePerMetre
Watts per square metre per metre.
http://qudt.org/2.1/vocab/unit
WattPerSquareMetrePerMetre
http://qudt.org/vocab/unit/W-PER-M2-M
W.m-2.m-1
W/m²⋅m
Watts per square metre per metre.
3600.0
0.0
KelvinPerHour
`Kelvin per Hour` is a unit for 'Temperature Per Time' expressed as K / h.
-- QUDT
http://qudt.org/2.1/vocab/unit
Kelvin per Hour
KelvinPerHour
http://qudt.org/vocab/unit/K-PER-HR
K.h-1
K/h
`Kelvin per Hour` is a unit for 'Temperature Per Time' expressed as K / h.
-- QUDT
T-1 L0 M0 I0 Θ+1 N0 J0
TemperaturePerTimeUnit
The class of units with dimensionality 'TemperaturePerTime'.
TemperaturePerTimeUnit
The class of units with dimensionality 'TemperaturePerTime'.
K
PotassiumSymbol
The symbol that stands for the potassium atom.
PotassiumSymbol
The symbol that stands for the potassium atom.
0.001
0.0
CubicDeciMetre
0.1-fold of the power of the SI base unit metre with the exponent 3
-- QUDT
http://qudt.org/2.1/vocab/unit
Cubic Decimetre
CubicDeciMetre
http://qudt.org/vocab/unit/DeciM3
dm3
dm³
0.1-fold of the power of the SI base unit metre with the exponent 3
-- QUDT
0.1047198
0.0
RevolutionPerMinute
"Revolution per Minute" is a unit for 'Angular Velocity' expressed as rev/min.
-- QUDT
http://qudt.org/2.1/vocab/unit
Revolution per Minute
RevolutionPerMinute
http://qudt.org/vocab/unit/REV-PER-MIN
{#}.min-1
rev/min
"Revolution per Minute" is a unit for 'Angular Velocity' expressed as rev/min.
-- QUDT
MesoscopicModel
A physics-based model based on a physics equation describing the behaviour of mesoscopic entities, i.e. a set of bounded atoms like a molecule, bead or nanoparticle.
MesoscopicModel
A physics-based model based on a physics equation describing the behaviour of mesoscopic entities, i.e. a set of bounded atoms like a molecule, bead or nanoparticle.
MolarGasConstant
Equivalent to the Boltzmann constant, but expressed in units of energy per temperature increment per mole (rather than energy per temperature increment per particle).
MolarGasConstant
http://qudt.org/vocab/constant/MolarGasConstant
9-37.1
Equivalent to the Boltzmann constant, but expressed in units of energy per temperature increment per mole (rather than energy per temperature increment per particle).
https://doi.org/10.1351/goldbook.G02579
0.0
1.0
PascalSecondPerCubicMetre
`Pascal Second Per Cubic Meter` (Pa-s/m³) is a unit in the category of Acoustic impedance. It is also known as `pascal-second/cubic meter`. It has a dimension of ML⁻⁴T⁻¹ where M is mass, L is length, and T is time. This unit is the standard SI unit in this category.
-- QUDT
http://qudt.org/2.1/vocab/unit
http://www.efunda.com/glossary/units/units--acoustic_impedance--pascal_second_per_cubic_meter.cfm
Pascal Second Per Cubic Metre
PascalSecondPerCubicMetre
http://qudt.org/vocab/unit/PA-SEC-PER-M3
Pa.s.m-3
Pa⋅s/m³
`Pascal Second Per Cubic Meter` (Pa-s/m³) is a unit in the category of Acoustic impedance. It is also known as `pascal-second/cubic meter`. It has a dimension of ML⁻⁴T⁻¹ where M is mass, L is length, and T is time. This unit is the standard SI unit in this category.
-- QUDT
T-1 L-4 M+1 I0 Θ0 N0 J0
MassPerQuarticLengthTimeUnit
The class of units with dimensionality 'MassPerQuarticLengthTime'.
MassPerQuarticLengthTimeUnit
The class of units with dimensionality 'MassPerQuarticLengthTime'.
HeatFlowRate
Amount of heat through a surface during a time interval divided by the duration of this interval.
HeatFlowRate
https://qudt.org/vocab/quantitykind/HeatFlowRate
https://www.wikidata.org/wiki/Q12160631
https://www.electropedia.org/iev/iev.nsf/display?openform&ievref=113-04-36
5-7
Amount of heat through a surface during a time interval divided by the duration of this interval.
DensityOfHeatFlowRate
At a fixed point in a medium, the direction of propagation of heat is opposite to the temperature gradient. At a point on the surface separating two media with different temperatures, the direction of propagation of heat is normal to the surface, from higher to lower temperatures.
Vector quantity with magnitude equal to the heat flow rate dΦ through a surface element divided by the area dA of the element, and direction eφ in the direction of propagation of heat.
AreicHeatFlowRate
DensityOfHeatFlowRate
https://www.wikidata.org/wiki/Q1478382
https://www.electropedia.org/iev/iev.nsf/display?openform&ievref=113-04-37
5-8
Vector quantity with magnitude equal to the heat flow rate dΦ through a surface element divided by the area dA of the element, and direction eφ in the direction of propagation of heat.
https://doi.org/10.1351/goldbook.H02755
V
Volt
SI unit for electric potential difference.
The volt is the unit of electric potential difference—electric potential difference is also known as voltage. The size of 1 volt is officially defined as the potential difference between two points of a wire carrying a current of 1 ampere when the power dissipated in the wire is 1 watt.
Volt
VLT
http://qudt.org/vocab/unit/V
V
http://dbpedia.org/resource/Volt
SI unit for electric potential difference.
The volt is the unit of electric potential difference—electric potential difference is also known as voltage. The size of 1 volt is officially defined as the potential difference between two points of a wire carrying a current of 1 ampere when the power dissipated in the wire is 1 watt.
http://en.wikipedia.org/wiki/Volt?oldid=494812083
https://doi.org/10.1351/goldbook.V06634
T-3 L+2 M+1 I-1 Θ0 N0 J0
ElectricPotentialUnit
The class of units with dimensionality 'ElectricPotential'.
ElectricPotentialUnit
The class of units with dimensionality 'ElectricPotential'.
1000000000.0
0.0
CubicKiloMetrePerSquareSecond
`Cubic Kilometer per Square Second` is a unit for `Standard Gravitational Parameter` expressed as km³/s².
-- QUDT
http://qudt.org/2.1/vocab/unit
Cubic Kilometre per Square Second
CubicKiloMetrePerSquareSecond
http://qudt.org/vocab/unit/KiloM3-PER-SEC2
km3.s-2
km3/s2
km³/s²
`Cubic Kilometer per Square Second` is a unit for `Standard Gravitational Parameter` expressed as km³/s².
-- QUDT
RadiantEnergy
Mean energy, excluding rest energy, of the particles that are emitted, transferred, or received.
RadiantEnergy
https://www.wikidata.org/wiki/Q1259526
10-45
Mean energy, excluding rest energy, of the particles that are emitted, transferred, or received.
0.0
1.0
SquareMetre
The S I unit of area is the square metre.
-- QUDT
SquareMetre
MTK
http://qudt.org/vocab/unit/M2
http://www.ontology-of-units-of-measure.org/resource/om-2/squareMetre
m2
m²
The S I unit of area is the square metre.
-- QUDT
Tc
TechnetiumSymbol
The symbol that stands for the technetium atom.
TechnetiumSymbol
The symbol that stands for the technetium atom.
DebyeTemperature
DebyeTemperature
https://qudt.org/vocab/quantitykind/DebyeTemperature
https://www.wikidata.org/wiki/Q3517821
12-11
ThermodynamicTemperature
Thermodynamic temperature is the absolute measure of temperature. It is defined by the third law of thermodynamics in which the theoretically lowest temperature is the null or zero point.
Temperature
ThermodynamicTemperature
http://qudt.org/vocab/quantitykind/ThermodynamicTemperature
5-1
Thermodynamic temperature is the absolute measure of temperature. It is defined by the third law of thermodynamics in which the theoretically lowest temperature is the null or zero point.
https://doi.org/10.1351/goldbook.T06321
0.0
1.0
MetrePerFarad
Metre per Farad.
http://qudt.org/2.1/vocab/unit
MetrePerFarad
http://qudt.org/vocab/unit/M-PER-FARAD
m.F-1
m/f
Metre per Farad.
T-4 L+3 M+1 I-2 Θ0 N0 J0
InversePermittivityUnit
The class of units with dimensionality 'InversePermittivity'.
InversePermittivityUnit
The class of units with dimensionality 'InversePermittivity'.
M
1000000.0
Mega
SI prefix who's value is 1e6.
Mega
SI prefix who's value is 1e6.
SeebeckCoefficient
Measure of voltage induced by change of temperature.
SeebeckCoefficient
https://qudt.org/vocab/quantitykind/SeebeckCoefficient
https://www.wikidata.org/wiki/Q1091448
12-21
Measure of voltage induced by change of temperature.
223.01974
87
FranciumAtom
Atom subclass for francium.
FranciumAtom
Atom subclass for francium.
MolecularFormula
An expression that provides information about the element types that constiture a molecule or a molecular substance and their number.
Hydrogen peroxide is H2O2
MolecularFormula
An expression that provides information about the element types that constiture a molecule or a molecular substance and their number.
ChemicalFormula
A chemical formula may also include other symbols such as parentheses, plus and minus signs, brackets
A symbolic construct that provides informations about the chemical proportions of the elements that constitute a chemical compound or a specific molecule.
ChemicalFormula
A symbolic construct that provides informations about the chemical proportions of the elements that constitute a chemical compound or a specific molecule.
Hs
HassiumSymbol
The symbol that stands for the hassium atom.
HassiumSymbol
The symbol that stands for the hassium atom.
LiquidSol
A type of sol in the form of one solid dispersed in liquid.
LiquidSol
A type of sol in the form of one solid dispersed in liquid.
Sol
A colloid in which small particles (1 nm to 100 nm) are suspended in a continuum phase.
Sol
A colloid in which small particles (1 nm to 100 nm) are suspended in a continuum phase.
Liquid
A liquid is a nearly incompressible fluid that conforms to the shape of its container but retains a (nearly) constant volume independent of pressure.
Liquid
A liquid is a nearly incompressible fluid that conforms to the shape of its container but retains a (nearly) constant volume independent of pressure.
Eu
EuropiumSymbol
The symbol that stands for the europium atom.
EuropiumSymbol
The symbol that stands for the europium atom.
Si
SiliconSymbol
The symbol that stands for the silicon atom.
SiliconSymbol
The symbol that stands for the silicon atom.
BoltzmannConstant
A physical constant relating energy at the individual particle level with temperature. It is the gas constant R divided by the Avogadro constant.
It defines the Kelvin unit in the SI system.
The DBpedia definition (http://dbpedia.org/page/Boltzmann_constant) is outdated as May 20, 2019. It is now an exact quantity.
BoltzmannConstant
http://qudt.org/vocab/constant/BoltzmannConstant
A physical constant relating energy at the individual particle level with temperature. It is the gas constant R divided by the Avogadro constant.
It defines the Kelvin unit in the SI system.
https://doi.org/10.1351/goldbook.B00695
Entropy
Logarithmic measure of the number of available states of a system.
May also be referred to as a measure of order of a system.
Entropy
http://qudt.org/vocab/quantitykind/Entropy
5-18
Logarithmic measure of the number of available states of a system.
https://doi.org/10.1351/goldbook.E02149
1.0
0.0
JoulePerTesla
The magnetic moment of a magnet is a quantity that determines the force that the magnet can exert on electric currents and the torque that a magnetic field will exert on it. A loop of electric current, a bar magnet, an electron, a molecule, and a planet all have magnetic moments. The unit for magnetic moment is not a base unit in the International System of Units (SI) and it can be represented in more than one way. For example, in the current loop definition, the area is measured in square meters and I is measured in amperes, so the magnetic moment is measured in ampere-square meters (A m2). In the equation for torque on a moment, the torque is measured in joules and the magnetic field in tesla, so the moment is measured in Joules per Tesla (J u00b7T-1). These two representations are equivalent: 1 A u00b7m2 = 1 J u00b7T-1.
-- QUDT
http://qudt.org/2.1/vocab/unit
Joule per Tesla
JoulePerTesla
http://qudt.org/vocab/unit/J-PER-T
J.T-1
J/T
The magnetic moment of a magnet is a quantity that determines the force that the magnet can exert on electric currents and the torque that a magnetic field will exert on it. A loop of electric current, a bar magnet, an electron, a molecule, and a planet all have magnetic moments. The unit for magnetic moment is not a base unit in the International System of Units (SI) and it can be represented in more than one way. For example, in the current loop definition, the area is measured in square meters and I is measured in amperes, so the magnetic moment is measured in ampere-square meters (A m2). In the equation for torque on a moment, the torque is measured in joules and the magnetic field in tesla, so the moment is measured in Joules per Tesla (J u00b7T-1). These two representations are equivalent: 1 A u00b7m2 = 1 J u00b7T-1.
-- QUDT
T0 L+2 M0 I+1 Θ0 N0 J0
MagneticDipoleMomentUnit
The class of units with dimensionality 'MagneticDipoleMoment'.
MagneticDipoleMomentUnit
The class of units with dimensionality 'MagneticDipoleMoment'.
Extensive
A quantity whose magnitude is additive for subsystems.
Note that not all physical quantities can be categorised as being either intensive or extensive. For example the square root of the mass.
Mass
Volume
Entropy
Extensive
A quantity whose magnitude is additive for subsystems.
AngularMeasure
The abstract notion of angle.
AngularMeasure
https://qudt.org/vocab/quantitykind/Angle
https://www.wikidata.org/wiki/Q1357788
https://www.electropedia.org/iev/iev.nsf/display?openform&ievref=102-04-14
3-5
The abstract notion of angle.
https://doi.org/10.1351/goldbook.A00346
DataProcessing
A computation that provides a data output following the elaboration of some input data, using a data processing application.
DataProcessing
A computation that provides a data output following the elaboration of some input data, using a data processing application.
Computation
A procedure that deals with quantitative symbols (i.e. symbols associated with a quantitative oriented language).
A matematician that calculates 2+2.
A computation machine that calculate the average value of a dataset.
Computation
A procedure that deals with quantitative symbols (i.e. symbols associated with a quantitative oriented language).
HardeningByRolling
Strengthening by rolling is the strengthening of component surfaces by mechanically generating compressive stresses in the component surface and consolidating the material.
VerfestigendurchWalzen
HardeningByRolling
Strengthening by rolling is the strengthening of component surfaces by mechanically generating compressive stresses in the component surface and consolidating the material.
T-3 L+3 M+1 I-1 Θ0 N0 J0
ElectricFluxUnit
The class of units with dimensionality 'ElectricFlux'.
ElectricFluxUnit
The class of units with dimensionality 'ElectricFlux'.
12
24.305
MagnesiumAtom
Atom subclass for magnesium.
MagnesiumAtom
Atom subclass for magnesium.
0.0
1000.0
SquareMetrePerGram
A unit in the category of specific area.
SquareMetrePerGram
A unit in the category of specific area.
T0 L+2 M-1 I0 Θ0 N0 J0
AreaPerMassUnit
The class of units with dimensionality 'AreaPerMass'.
AreaPerMassUnit
The class of units with dimensionality 'AreaPerMass'.
RichardsonConstant
Parameter in the expression for the thermionic emission current density J for a metal in terms of the thermodynamic temperature T and work function.
RichardsonConstant
https://qudt.org/vocab/quantitykind/RichardsonConstant
https://www.wikidata.org/wiki/Q105883079
https://www.electropedia.org/iev/iev.nsf/display?openform&ievref=113-06-30
12-26
Parameter in the expression for the thermionic emission current density J for a metal in terms of the thermodynamic temperature T and work function.
100.0
0.0
NewtonPerCentiMetre
SI derived unit newton divided by the 0.01-fold of the SI base unit metre
-- QUDT
http://qudt.org/2.1/vocab/unit
Newton Per Centimetre
NewtonPerCentiMetre
http://qudt.org/vocab/unit/N-PER-CentiM
N.cm-1
N/cm
SI derived unit newton divided by the 0.01-fold of the SI base unit metre
-- QUDT
ScalarData
A symbolic data that is not array data.
Scalar data are primitive symbolic data that are not built up of other types of symbolic data.
ScalarData
A symbolic data that is not array data.
Scalar data are primitive symbolic data that are not built up of other types of symbolic data.
SurfaceDensityOfElectricCharge
The derivative of the electric charge of a system with respect to the area.
AreicElectricCharge
SurfaceChargeDensity
SurfaceDensityOfElectricCharge
https://www.wikidata.org/wiki/Q12799324
https://www.electropedia.org/iev/iev.nsf/display?openform&ievref=121-11-08
6-4
The derivative of the electric charge of a system with respect to the area.
https://doi.org/10.1351/goldbook.S06159
ElectricFluxDensity
Vector quantity obtained at a given point by adding the electric polarization P to the product of the electric field strength E and the electric constant ε0.
ElectricDisplacement
ElectricFluxDensity
https://qudt.org/vocab/quantitykind/ElectricDisplacementField
https://www.wikidata.org/wiki/Q371907
https://www.electropedia.org/iev/iev.nsf/display?openform&ievref=121-11-40
6-12
Vector quantity obtained at a given point by adding the electric polarization P to the product of the electric field strength E and the electric constant ε0.
Fluid
A continuum that has no fixed shape and yields easily to external pressure.
Gas, liquid, plasma,
Fluid
A continuum that has no fixed shape and yields easily to external pressure.
ContinuumSubstance
A continuum is made of a sufficient number of parts that it continues to exists as continuum individual even after the loss of one of them i.e. a continuum is a redundant.
A state that is a collection of sufficiently large number of other parts such that:
- it is the bearer of qualities that can exists only by the fact that it is a sum of parts
- the smallest partition dV of the state volume in which we are interested in, contains enough parts to be statistically consistent: n [#/m3] x dV [m3] >> 1
ContinuumSubstance
A state that is a collection of sufficiently large number of other parts such that:
- it is the bearer of qualities that can exists only by the fact that it is a sum of parts
- the smallest partition dV of the state volume in which we are interested in, contains enough parts to be statistically consistent: n [#/m3] x dV [m3] >> 1
A continuum is made of a sufficient number of parts that it continues to exists as continuum individual even after the loss of one of them i.e. a continuum is a redundant.
A continuum is not necessarily small (i.e. composed by the minimum amount of sates to fulfill the definition).
A single continuum individual can be the whole fluid in a pipe.
A continuum is the bearer of properties that are generated by the interactions of parts such as viscosity and thermal or electrical conductivity.
1e-21
ZeptoPrefixedUnit
Superclass for all units prefixed with "zepto" (1e-21).
ZeptoPrefixedUnit
Superclass for all units prefixed with "zepto" (1e-21).
RationalData
A symbolic data representing a rational number, that is a number that can be expressed exact by `p/q` where `p` and `q` are integer numbers.
RationalData
A symbolic data representing a rational number, that is a number that can be expressed exact by `p/q` where `p` and `q` are integer numbers.
85.4678
37
RubidiumAtom
Atom subclass for rubidium.
RubidiumAtom
Atom subclass for rubidium.
Task
A procedure that is an hoilistic part of a workflow.
A task is a generic part of a workflow, without taking care of the task granularities.
It means that you can declare that e.g. tightening a bolt is a task of building an airplane, without caring of the coarser tasks to which this tightening belongs.
Job
Task
A procedure that is an hoilistic part of a workflow.
A task is a generic part of a workflow, without taking care of the task granularities.
It means that you can declare that e.g. tightening a bolt is a task of building an airplane, without caring of the coarser tasks to which this tightening belongs.
1.0
0.0
JoulePerSquareTesla
A measure of the diamagnetic energy, for a Bohr-radius spread around a magnetic axis, per square Tesla.
-- QUDT
http://qudt.org/2.1/vocab/unit
http://www.eng.fsu.edu/~dommelen/quantum/style_a/elecmagfld.html
Joule per Square Tesla
JoulePerSquareTesla
http://qudt.org/vocab/unit/J-PER-T2
J.T-2
J/T²
A measure of the diamagnetic energy, for a Bohr-radius spread around a magnetic axis, per square Tesla.
-- QUDT
T+2 L+2 M-1 I+2 Θ0 N0 J0
EnergyPerSquareMagneticFluxDensityUnit
The class of units with dimensionality 'EnergyPerSquareMagneticFluxDensity'.
EnergyPerSquareMagneticFluxDensityUnit
The class of units with dimensionality 'EnergyPerSquareMagneticFluxDensity'.
T-1 L+2 M-1 I0 Θ+1 N0 J0
TemperatureAreaPerMassTimeUnit
The class of units with dimensionality 'TemperatureAreaPerMassTime'.
TemperatureAreaPerMassTimeUnit
The class of units with dimensionality 'TemperatureAreaPerMassTime'.
IntentionalProcess
A process occurring with the active participation of an agent that drives the process according to a specific objective (intention).
Project
IntentionalProcess
A process occurring with the active participation of an agent that drives the process according to a specific objective (intention).
T+1 L+1 M0 I+1 Θ0 N0 J0
LengthTimeCurrentUnit
The class of units with dimensionality 'LengthTimeCurrent'.
LengthTimeCurrentUnit
The class of units with dimensionality 'LengthTimeCurrent'.
1.0
0.0
SquareMetrePerVoltSecond
Square metre per volt second.
http://qudt.org/2.1/vocab/unit
SquareMetrePerVoltSecond
http://qudt.org/vocab/unit/M2-PER-V-SEC
m2.V-1.s-1
m²/(V⋅s)
Square metre per volt second.
2.777778e-07
0.0
GramPerHour
0,001-fold of the SI base unit kilogram divided by the unit hour
-- QUDT
http://qudt.org/2.1/vocab/unit
Gram Per Hour
GramPerHour
http://qudt.org/vocab/unit/GM-PER-HR
g.h-1
g/hr
0,001-fold of the SI base unit kilogram divided by the unit hour
-- QUDT
T-1 L0 M+1 I0 Θ0 N0 J0
MassPerTimeUnit
The class of units with dimensionality 'MassPerTime'.
MassPerTimeUnit
The class of units with dimensionality 'MassPerTime'.
Manufacturing
Deals with entities that have a defined shape.
The process of transforming precursor objects (e.g. raw materials) into a product by the use of manual labor, machinery or chemical/biological processes.
DIN 8580:2020
ISO 15531-1:2004
manufacturing: function or act of converting or transforming material from raw material or semi-finished state to a state of further completion
ISO 18435-1:2009
manufacturing process: set of processes in manufacturing involving a flow and/or transformation of material, information, energy, control, or any other element in a manufacturing area
Manufacturing
The process of transforming precursor objects (e.g. raw materials) into a product by the use of manual labor, machinery or chemical/biological processes.
Deals with entities that have a defined shape.
https://de.wikipedia.org/wiki/Fertigungsverfahren
Intensity
Power transferred per unit area.
Intensity
Power transferred per unit area.
https://en.wikipedia.org/wiki/Intensity_(physics)
PeltierCoefficient
Quotient of Peltier heat power developed at a junction, and the electric current flowing from substance a to substance b.
PeltierCoefficient
https://qudt.org/vocab/quantitykind/PeltierCoefficient
https://www.wikidata.org/wiki/Q105801003
12-22
Quotient of Peltier heat power developed at a junction, and the electric current flowing from substance a to substance b.
Susceptance
Imaginary part of the admittance.
Susceptance
https://qudt.org/vocab/quantitykind/Susceptance
https://www.wikidata.org/wiki/Q509598
https://www.electropedia.org/iev/iev.nsf/display?openform&ievref=131-12-54
6-52.3
Imaginary part of the admittance.
Volume
Extent of an object in space.
Volume
http://qudt.org/vocab/quantitykind/Volume
https://www.wikidata.org/wiki/Q39297
https://www.electropedia.org/iev/iev.nsf/display?openform&ievref=102-04-40
https://dbpedia.org/page/Volume
3-4
Extent of an object in space.
TransportationDevice
TransportationDevice
Device
An object which is instrumental for reaching a particular purpose through its characteristic functioning process, with particular reference to mechanical or electronic equipment.
Equipment
Machine
Device
An object which is instrumental for reaching a particular purpose through its characteristic functioning process, with particular reference to mechanical or electronic equipment.
101.07
44
RutheniumAtom
Atom subclass for ruthenium.
RutheniumAtom
Atom subclass for ruthenium.
QualityFactor
Dimensionless quantity in electromagnetism.
QualityFactor
https://qudt.org/vocab/quantitykind/QualityFactor
https://www.wikidata.org/wiki/Q79467569
https://www.electropedia.org/iev/iev.nsf/display?openform&ievref=151-15-45
6-53
Dimensionless quantity in electromagnetism.
1.0
0.0
SiemensPerMetre
SI derived unit siemens divided by the SI base unit metre.
-- QUDT
http://qudt.org/2.1/vocab/unit
Siemens Per Metre
SiemensPerMetre
http://qudt.org/vocab/unit/S-PER-M
S.m-1
S/m
S/m
SI derived unit siemens divided by the SI base unit metre.
-- QUDT
OsmoticCoefficientOfSolvent
Quantity characterizing the deviation of a solvent from ideal behavior.
OsmoticFactorOfSolvent
OsmoticCoefficientOfSolvent
https://qudt.org/vocab/quantitykind/OsmoticCoefficient
https://www.wikidata.org/wiki/Q5776102
9-27.2
Quantity characterizing the deviation of a solvent from ideal behavior.
https://doi.org/10.1351/goldbook.O04342
Rotation
Number of turns.
Rotation
https://www.wikidata.org/wiki/Q76435127
https://www.electropedia.org/iev/iev.nsf/display?openform&ievref=102-05-22
3-14
Number of turns.
Rotation is not necessarily integer.
Procedure
A procedure can be considered as an intentional process with a plan.
The process in which an agent works with some entities according to some existing formalised operative rules.
The set of established forms or methods of an organized body for accomplishing a certain task or tasks (Wiktionary).
Elaboration
Work
The process in which a control unit of a CPU (the agent) orchestrates some cached binary data according to a list of instructions (e.g. a program).
The process in which a librarian order books alphabetically on a shelf.
The execution of an algorithm.
Procedure
The set of established forms or methods of an organized body for accomplishing a certain task or tasks (Wiktionary).
The process in which an agent works with some entities according to some existing formalised operative rules.
A procedure can be considered as an intentional process with a plan.
1000000.0
0.0
PerCubicCentiMetre
reciprocal of the 0.000001-fold of the power of the SI base unit metre with the exponent 3
-- QUDT
http://qudt.org/2.1/vocab/unit
ReciprocalCubicCentiMetre
PerCubicCentiMetre
http://qudt.org/vocab/unit/PER-CentiM3
cm-3
/cm³
reciprocal of the 0.000001-fold of the power of the SI base unit metre with the exponent 3
-- QUDT
T0 L-3 M0 I0 Θ0 N0 J0
PerVolumeUnit
The class of units with dimensionality 'PerVolume'.
PerVolumeUnit
The class of units with dimensionality 'PerVolume'.
1e-27
r
Ronto
SI prefix who's value is 1e-27.
Ronto
SI prefix who's value is 1e-27.
QualifiedWhole
A qualified whole is an entity of a type that requires to have parts of a another specific and different type. For example, a process always requires to have a participant, or a car always requires to have a powertrain.
This definition provides a clear and precise way to define what a whole is.
The superclass for all classes whose entities requires to have at least a part of different type.
QualifiedWhole
The superclass for all classes whose entities requires to have at least a part of different type.
A qualified whole is an entity of a type that requires to have parts of a another specific and different type. For example, a process always requires to have a participant, or a car always requires to have a powertrain.
This definition provides a clear and precise way to define what a whole is.
1.0
0.0
WattSecondPerSquareMetre
Watt second per square metre.
http://qudt.org/2.1/vocab/unit
WattSecondPerSquareMetre
http://qudt.org/vocab/unit/W-SEC-PER-M2
W.s.m-2
W⋅s/m²
Watt second per square metre.
Tl
ThalliumSymbol
The symbol that stands for the thallium atom.
ThalliumSymbol
The symbol that stands for the thallium atom.
UnsignedLongData
A data representing 64-bit non-negative integer number, 0...18446744073709551615.
https://www.w3.org/TR/xmlschema11-2/#unsignedLong
UnsignedLongData
A data representing 64-bit non-negative integer number, 0...18446744073709551615.
Ta
TantalumSymbol
The symbol that stands for the tantalum atom.
TantalumSymbol
The symbol that stands for the tantalum atom.
1e-06
0.0
MicroBecquerel
0.000001-fold of the SI derived unit becquerel
-- QUDT
http://qudt.org/2.1/vocab/unit
MicroBecquerel
http://qudt.org/vocab/unit/MicroBQ
uBq
μBq
0.000001-fold of the SI derived unit becquerel
-- QUDT
SurfaceTension
4-26
SurfaceTension
https://qudt.org/vocab/quantitykind/SurfaceTension
https://www.wikidata.org/wiki/Q170749
https://www.electropedia.org/iev/iev.nsf/display?openform&ievref=113-03-42
https://doi.org/10.1351/goldbook.S06192
MassFractionOfDryMatter
Quantity wd = 1 − wH2O, where wH2O is mass fraction of water.
MassFractionOfDryMatter
https://qudt.org/vocab/quantitykind/MassFractionOfDryMatter
https://www.wikidata.org/wiki/Q76379189
https://www.electropedia.org/iev/iev.nsf/display?openform&ievref=113-04-64
5-32
Quantity wd = 1 − wH2O, where wH2O is mass fraction of water.
MassFraction
Mass of a constituent divided by the total mass of all constituents in the mixture.
MassFraction
http://qudt.org/vocab/quantitykind/MassFraction
9-11
Mass of a constituent divided by the total mass of all constituents in the mixture.
https://doi.org/10.1351/goldbook.M03722
2.777778e-07
0.0
CubicDeciMetrePerHour
0,001-fold of the power of the SI base unit metre with the exponent 3 divided by the unit hour
-- QUDT
http://qudt.org/2.1/vocab/unit
Cubic Decimetre Per Hour
CubicDeciMetrePerHour
http://qudt.org/vocab/unit/DeciM3-PER-HR
dm3.h-1
dm3/h
dm³/hr
0,001-fold of the power of the SI base unit metre with the exponent 3 divided by the unit hour
-- QUDT
SISpecialUnit
The 22 derived units that are given a special name in the SI system that stands for units derived by SI base units.
These units are SI coherent by definition.
SISpecialUnit
The 22 derived units that are given a special name in the SI system that stands for units derived by SI base units.
These units are SI coherent by definition.
https://en.wikipedia.org/wiki/International_System_of_Units#Derived_units
0.0
1.0
KelvinPascalPerSecond
Kelvin Pascal per second.
http://qudt.org/2.1/vocab/unit
KelvinPascalPerSecond
http://qudt.org/vocab/unit/K-PA-PER-SEC
K.Pa.s-1
K⋅Pa/s
Kelvin Pascal per second.
T-3 L-1 M+1 I0 Θ+1 N0 J0
TemperaturePressurePerTimeUnit
The class of units with dimensionality 'TemperaturePressurePerTime'.
TemperaturePressurePerTimeUnit
The class of units with dimensionality 'TemperaturePressurePerTime'.
TotalIonization
Quotient of the total mean charge of all positive ions produced by an ionizing charged particle along its entire path and along the paths of any secondary charged particles, and the elementary charge.
TotalIonization
https://qudt.org/vocab/quantitykind/TotalIonization
https://www.wikidata.org/wiki/Q98690787
10-59
Quotient of the total mean charge of all positive ions produced by an ionizing charged particle along its entire path and along the paths of any secondary charged particles, and the elementary charge.
DegreeCelsiusPerMinute
`Degree Celsius per Minute` is a unit for 'Temperature Per Time' expressed as degC / m.
-- QUDT
http://qudt.org/2.1/vocab/unit
Degree Celsius per Minute
DegreeCelsiusPerMinute
http://qudt.org/vocab/unit/DEG_C-PER-MIN
Cel.min-1
Cel/min
°C/min
`Degree Celsius per Minute` is a unit for 'Temperature Per Time' expressed as degC / m.
-- QUDT
ComptonWavelength
Quotient of the Planck constant and the product of the mass of the particle and the speed of light in vacuum.
ComptonWavelength
https://qudt.org/vocab/constant/ComptonWavelength
https://www.wikidata.org/wiki/Q1145377
10-20
Quotient of the Planck constant and the product of the mass of the particle and the speed of light in vacuum.
https://en.wikipedia.org/wiki/Compton_wavelength
Wavelength
Length of the repetition interval of a wave.
Wavelength
https://qudt.org/vocab/quantitykind/Wavelength
https://www.wikidata.org/wiki/Q41364
https://www.electropedia.org/iev/iev.nsf/display?openform&ievref=103-10-10
https://dbpedia.org/page/Wavelength
3-19
Length of the repetition interval of a wave.
https://en.wikipedia.org/wiki/Wavelength
https://doi.org/10.1351/goldbook.W06659
1.0
0.0
WattPerSquareMetrePascal
Watt Per Square Meter Per Pascal (W/m²-pa) is a unit of Evaporative Heat Transfer.
-- QUDT
http://qudt.org/2.1/vocab/unit
Watt per Square Metre Pascal
WattPerSquareMetrePascal
http://qudt.org/vocab/unit/W-PER-M2-PA
W.m-2.Pa-1
W/(m²⋅pa)
Watt Per Square Meter Per Pascal (W/m²-pa) is a unit of Evaporative Heat Transfer.
-- QUDT
Suspension
An heterogeneous mixture that contains coarsly dispersed particles (no Tyndall effect), that generally tend to separate in time to the dispersion medium phase.
Suspensions show no significant effect on light.
Suspension
An heterogeneous mixture that contains coarsly dispersed particles (no Tyndall effect), that generally tend to separate in time to the dispersion medium phase.
PhaseHeterogeneousMixture
A mixture in which more than one phases of matter cohexists.
Phase heterogenous mixture may share the same state of matter.
For example, immiscibile liquid phases (e.g. oil and water) constitute a mixture whose phases are clearly separated but share the same state of matter.
PhaseHeterogeneousMixture
A mixture in which more than one phases of matter cohexists.
Phase heterogenous mixture may share the same state of matter.
For example, immiscibile liquid phases (e.g. oil and water) constitute a mixture whose phases are clearly separated but share the same state of matter.
0.001
0.0
LitrePerKelvin
unit litre divided by the SI base unit kelvin
-- QUDT
http://qudt.org/2.1/vocab/unit
Litre Per Kelvin
LitrePerKelvin
http://qudt.org/vocab/unit/L-PER-K
L.K-1
L/K
L/K
unit litre divided by the SI base unit kelvin
-- QUDT
T0 L+3 M0 I0 Θ-1 N0 J0
VolumePerTemperatureUnit
The class of units with dimensionality 'VolumePerTemperature'.
VolumePerTemperatureUnit
The class of units with dimensionality 'VolumePerTemperature'.
NucleonNumber
number of nucleons in an atomic nucleus
MassNumber
NucleonNumber
https://qudt.org/vocab/quantitykind/NucleonNumber
https://www.wikidata.org/wiki/Q101395
https://www.electropedia.org/iev/iev.nsf/display?openform&ievref=113-05-32
https://dbpedia.org/page/Mass_number
10-1.3
number of nucleons in an atomic nucleus
https://en.wikipedia.org/wiki/Mass_number
https://doi.org/10.1351/goldbook.M03726
PackingFraction
Quotient of relative mass excess and the nucleon number.
PackingFraction
https://qudt.org/vocab/quantitykind/PackingFraction
https://www.wikidata.org/wiki/Q98058276
10-23.1
Quotient of relative mass excess and the nucleon number.
Assigned
Assigned
eV
1.602177e-19
ElectronVolt
An electron volt (eV) is the energy that an electron gains when it travels through a potential of one volt. You can imagine that the electron starts at the negative plate of a parallel plate capacitor and accelerates to the positive plate, which is at one volt higher potential. Numerically 1 eV approximates 1.6x10⁻¹⁹ joules, where 1 joule is 6.2x10¹⁸ eV. For example, it would take 6.2x10²⁰ eV/sec to light a 100 watt light bulb.
-- QUDT
The amount of energy gained (or lost) by the charge of a single electron moving across an electric potential difference of one volt.
ElectronVolt
A53
http://qudt.org/vocab/unit/EV
eV
http://dbpedia.org/page/Electronvolt
The amount of energy gained (or lost) by the charge of a single electron moving across an electric potential difference of one volt.
An electron volt (eV) is the energy that an electron gains when it travels through a potential of one volt. You can imagine that the electron starts at the negative plate of a parallel plate capacitor and accelerates to the positive plate, which is at one volt higher potential. Numerically 1 eV approximates 1.6x10⁻¹⁹ joules, where 1 joule is 6.2x10¹⁸ eV. For example, it would take 6.2x10²⁰ eV/sec to light a 100 watt light bulb.
-- QUDT
http://en.wikipedia.org/wiki/Electron_volt?oldid=344021738
https://doi.org/10.1351/goldbook.E02014
T0 L0 M0 I0 Θ+2 N0 J0
SquareTemperatureUnit
The class of units with dimensionality 'SquareTemperature'.
SquareTemperatureUnit
The class of units with dimensionality 'SquareTemperature'.
SpecificHeatCapacity
Heat capacity divided by mass.
SpecificHeatCapacity
https://qudt.org/vocab/quantitykind/SpecificHeatCapacity
https://www.wikidata.org/wiki/Q487756
https://www.electropedia.org/iev/iev.nsf/display?openform&ievref=113-04-48
https://dbpedia.org/page/Specific_heat_capacity
5-16.1
Heat capacity divided by mass.
https://en.wikipedia.org/wiki/Specific_heat_capacity
https://doi.org/10.1351/goldbook.S05800
1.0
0.0
NewtonPerCoulomb
Newton Per Coulomb ( N/C) is a unit in the category of Electric field strength. It is also known as newtons/coulomb. Newton Per Coulomb ( N/C) has a dimension of MLT-3I-1 where M is mass, L is length, T is time, and I is electric current. It essentially the same as the corresponding standard SI unit V/m.
-- QUDT
http://qudt.org/2.1/vocab/unit
Newton per Coulomb
NewtonPerCoulomb
http://qudt.org/vocab/unit/N-PER-C
N.C-1
N/C
Newton Per Coulomb ( N/C) is a unit in the category of Electric field strength. It is also known as newtons/coulomb. Newton Per Coulomb ( N/C) has a dimension of MLT-3I-1 where M is mass, L is length, T is time, and I is electric current. It essentially the same as the corresponding standard SI unit V/m.
-- QUDT
SpecificActivity
Quotient of the activity A of a sample and the mass m of that sample.
MassicActivity
SpecificActivity
https://qudt.org/vocab/quantitykind/SpecificActivity
https://www.wikidata.org/wiki/Q2823748
https://www.electropedia.org/iev/iev.nsf/display?openform&ievref=395-01-08
https://www.electropedia.org/iev/iev.nsf/display?openform&ievref=881-04-43
10-28
Quotient of the activity A of a sample and the mass m of that sample.
https://doi.org/10.1351/goldbook.S05790
ScalarMeson
A meson with spin zero and even parity.
ScalarMeson
A meson with spin zero and even parity.
https://en.wikipedia.org/wiki/Scalar_meson
Conventional
A 'Sign' that stands for an 'Object' through convention, norm or habit, without any resemblance to it.
In Peirce semiotics this kind of sign category is called symbol. However, since symbol is also used in formal languages, the name is changed in conventional.
Conventional
A 'Sign' that stands for an 'Object' through convention, norm or habit, without any resemblance to it.
PositionVector
In the usual geometrical three-dimensional space, position vectors are quantities of the dimension length.
-- IEC
Position vectors are so-called bounded vectors, i.e. their magnitude and direction depend on the particular coordinate system used.
-- ISO 80000-3
Vector r characterizing a point P in a point space with a given origin point O.
Position
PositionVector
http://qudt.org/vocab/quantitykind/PositionVector
Vector r characterizing a point P in a point space with a given origin point O.
Vector
1-dimensional array who's spatial direct parts are numbers.
LinearArray
1DArray
Vector
1-dimensional array who's spatial direct parts are numbers.
ArchetypeManufacturing
A manufacturing in which the product is a solid body with a well defined geometrical shape made from shapeless original material parts, whose cohesion is created during the process.
DIN 8580:2020
Urformen
PrimitiveForming
ArchetypeManufacturing
A manufacturing in which the product is a solid body with a well defined geometrical shape made from shapeless original material parts, whose cohesion is created during the process.
Cn
CoperniciumSymbol
The symbol that stands for the copernicium atom.
CoperniciumSymbol
The symbol that stands for the copernicium atom.
T0 L0 M0 I0 Θ+1 N+1 J0
AmountTemperatureUnit
The class of units with dimensionality 'AmountTemperature'.
AmountTemperatureUnit
The class of units with dimensionality 'AmountTemperature'.
ReactorTimeConstant
Duration required for the neutron fluence rate in a reactor to change by the factor e when the fluence rate is rising or falling exponentially.
ReactorTimeConstant
https://qudt.org/vocab/quantitykind/ReactorTimeConstant
https://www.wikidata.org/wiki/Q99518950
https://www.electropedia.org/iev/iev.nsf/display?openform&ievref=395-07-04
10-79
Duration required for the neutron fluence rate in a reactor to change by the factor e when the fluence rate is rising or falling exponentially.
T+2 L-1 M-1 I+1 Θ0 N0 J0
MagneticReluctivityUnit
The class of units with dimensionality 'MagneticReluctivity'.
MagneticReluctivityUnit
The class of units with dimensionality 'MagneticReluctivity'.
Zr
ZirconiumSymbol
The symbol that stands for the zirconium atom.
ZirconiumSymbol
The symbol that stands for the zirconium atom.
100.0
0.0
SiemensPerCentiMetre
SI derived unit Siemens divided by the 0.01-fold of the SI base unit metre
-- QUDT
http://qudt.org/2.1/vocab/unit
Siemens Per Centimetre
SiemensPerCentiMetre
http://qudt.org/vocab/unit/S-PER-CentiM
S.cm-1
S/cm
SI derived unit Siemens divided by the 0.01-fold of the SI base unit metre
-- QUDT
58
140.116
CeriumAtom
Atom subclass for cerium.
CeriumAtom
Atom subclass for cerium.
InChI
The International Chemical Identifier (InChI) textual identifier proposed by IUPAC to provide a standard encoding for databases of molecular information.
InChI
The International Chemical Identifier (InChI) textual identifier proposed by IUPAC to provide a standard encoding for databases of molecular information.
IUPACNomencalture
IUPACNomencalture
ParticleNumberDensity
Mean number of particles per volume.
ParticleNumberDensity
https://qudt.org/vocab/quantitykind/ParticleNumberDensity
https://www.wikidata.org/wiki/Q98601569
10-62.1
Mean number of particles per volume.
https://doi.org/10.1351/goldbook.N04262
10000.0
0.0
AmperePerSquareCentiMetre
SI base unit ampere divided by the 0.0001-fold of the power of the SI base unit metre by exponent 2
-- QUDT
http://qudt.org/2.1/vocab/unit
Ampere Per Square Centimetre
AmperePerSquareCentiMetre
http://qudt.org/vocab/unit/A-PER-CentiM2
A.cm-2
A/cm2
A/cm²
SI base unit ampere divided by the 0.0001-fold of the power of the SI base unit metre by exponent 2
-- QUDT
EquilibriumConstant
The physical dimension can change based on the stoichiometric numbers of the substances involved.
for solutions, product for all substances B of concentration c_B of substance B in power of its stoichiometric number v_B: K_p = \sum_B{c_B^{v_B}}.
EquilibriumConstantConcentrationBasis
EquilibriumConstant
https://qudt.org/vocab/quantitykind/EquilibriumConstant
https://www.wikidata.org/wiki/Q857809
for solutions, product for all substances B of concentration c_B of substance B in power of its stoichiometric number v_B: K_p = \sum_B{c_B^{v_B}}.
https://en.wikipedia.org/wiki/Equilibrium_constant
https://doi.org/10.1351/goldbook.E02177
Role
An entity that is categorized according to its relation with a whole through a parthood relation and that contributes to it according to an holistic criterion, where the type of the whole is not the type of the part.
In this class the concept of role and part are superimposed (the term part is also used to define the role played by an actor).
Here entities are categorized according to their relation with the whole, i.e. how they contribute to make a specific whole, and not what they are as separate entities.
This class is expected to host the definition of world objects as they appear in its relation with the surrounding whole (being a part implies being surrounded by something bigger to which it contributes).
HolisticPart
Part
Role
An entity that is categorized according to its relation with a whole through a parthood relation and that contributes to it according to an holistic criterion, where the type of the whole is not the type of the part.
In this class the concept of role and part are superimposed (the term part is also used to define the role played by an actor).
Here entities are categorized according to their relation with the whole, i.e. how they contribute to make a specific whole, and not what they are as separate entities.
This class is expected to host the definition of world objects as they appear in its relation with the surrounding whole (being a part implies being surrounded by something bigger to which it contributes).
At
AstatineSymbol
The symbol that stands for the astatine atom.
AstatineSymbol
The symbol that stands for the astatine atom.
Velocity
The velocity depends on the choice of the reference frame. Proper transformation between frames must be used: Galilean for non-relativistic description, Lorentzian for relativistic description.
-- IEC, note 2
The velocity is related to a point described by its position vector. The point may localize a particle, or be attached to any other object such as a body or a wave.
-- IEC, note 1
Vector quantity giving the rate of change of a position vector.
-- ISO 80000-3
Velocity
http://qudt.org/vocab/quantitykind/Velocity
https://www.wikidata.org/wiki/Q11465
3-8.1
3‑10.1
Vector quantity giving the rate of change of a position vector.
-- ISO 80000-3
Ge
GermaniumSymbol
The symbol that stands for the germanium atom.
GermaniumSymbol
The symbol that stands for the germanium atom.
PhysicalBasedSimulationSoftware
A computational application that uses a physical model to predict the behaviour of a system, providing a identifiable analogy with the original object.
PhysicalBasedSimulationSoftware
A computational application that uses a physical model to predict the behaviour of a system, providing a identifiable analogy with the original object.
SimulationApplication
An application aimed to functionally reproduce an object.
An application that predicts the pressure drop of a fluid in a pipe segment is aimed to functionally reproduce the outcome of a measurement of pressure before and after the segment.
SimulationApplication
An application aimed to functionally reproduce an object.
UnsignedByteData
A data representing 8-bit non-negative integer number, 0...255.
https://www.w3.org/TR/xmlschema11-2/#unsignedByte
UnsignedByteData
A data representing 8-bit non-negative integer number, 0...255.
1e-06
0.0
MicroMole
0.000001-fold of the SI base unit mol
-- QUDT
http://qudt.org/2.1/vocab/unit
MicroMole
http://qudt.org/vocab/unit/MicroMOL
umol
μmol
0.000001-fold of the SI base unit mol
-- QUDT
Br
BromineSymbol
The symbol that stands for the bromine atom.
BromineSymbol
The symbol that stands for the bromine atom.
DirectionAndEnergyDistributionOfCrossSection
Partial differential quotient of the cross section of a process with respect to the solid angle around a given direction and the energy of a particle scattered in that direction.
DirectionAndEnergyDistributionOfCrossSection
https://qudt.org/vocab/quantitykind/SpectralAngularCrossSection
https://www.wikidata.org/wiki/Q98269571
10-41
Partial differential quotient of the cross section of a process with respect to the solid angle around a given direction and the energy of a particle scattered in that direction.
Nucleon
Either a proton or a neutron.
Nucleon
Either a proton or a neutron.
https://en.wikipedia.org/wiki/Nucleon
Baryon
Subatomic particle which contains an odd number of valence quarks, at least 3.
Baryon
Subatomic particle which contains an odd number of valence quarks, at least 3.
https://en.wikipedia.org/wiki/Baryon
0.0
0.0002908882
DegreePerMinute
A unit of measure for the rate of change of plane angle, dω / dt, in durations of one minute.The vector ω is directed along the axis of rotation in the direction for which the rotation is clockwise.
-- QUDT
http://qudt.org/2.1/vocab/unit
Degree per Minute
DegreePerMinute
http://qudt.org/vocab/unit/DEG-PER-MIN
deg.min-1
deg/min
°/min
A unit of measure for the rate of change of plane angle, dω / dt, in durations of one minute.The vector ω is directed along the axis of rotation in the direction for which the rotation is clockwise.
-- QUDT
Colloid
A mixture in which one substance of microscopically dispersed insoluble or soluble particles (from 1 nm to 1 μm) is suspended throughout another substance and that does not settle, or would take a very long time to settle appreciably.
Colloids are characterized by the occurring of the Tyndall effect on light.
Colloid
A mixture in which one substance of microscopically dispersed insoluble or soluble particles (from 1 nm to 1 μm) is suspended throughout another substance and that does not settle, or would take a very long time to settle appreciably.
Colloids are characterized by the occurring of the Tyndall effect on light.
0.0
1.0
CoulombSquareMetrePerVolt
Coulomb Square Meter (C-m2-per-volt) is a unit in the category of Electric polarizability.
-- QUDT
http://qudt.org/2.1/vocab/unit
Coulomb Square Metre Per Volt
CoulombSquareMetrePerVolt
http://qudt.org/vocab/unit/C-M2-PER-V
C.m2.V-1
C.m2/V
C⋅m²/V
Coulomb Square Meter (C-m2-per-volt) is a unit in the category of Electric polarizability.
-- QUDT
Sc
ScandiumSymbol
The symbol that stands for the scandium atom.
ScandiumSymbol
The symbol that stands for the scandium atom.
1.0
0.0
PascalSecondPerMetre
Pascal Second Per Meter (Pa-s/m) is a unit in the category of Specific acoustic impedance. It is also known as pascal-second/meter. Pascal Second Per Meter has a dimension of ML²T⁻¹ where M is mass, L is length, and T is time. It essentially the same as the corresponding standard SI unit kg/m2· s.
-- QUDT
http://qudt.org/2.1/vocab/unit
http://www.efunda.com/glossary/units/units--specific_acoustic_impedance--pascal_second_per_meter.cfm
Pascal Second Per Metre
PascalSecondPerMetre
http://qudt.org/vocab/unit/PA-SEC-PER-M
Pa.s.m-1
Pa⋅s/m
Pascal Second Per Meter (Pa-s/m) is a unit in the category of Specific acoustic impedance. It is also known as pascal-second/meter. Pascal Second Per Meter has a dimension of ML²T⁻¹ where M is mass, L is length, and T is time. It essentially the same as the corresponding standard SI unit kg/m2· s.
-- QUDT
MultiParticlePath
A chausal path whose quantum parts belongs to at least two different standard model fundamental types.
An multi-particle path is a causal path of quantum entities of different type, following the causal connection between an initial quantum up to the final one, regardless on the fact that causality is passing through elementary particles of different types.
For example, a path starting from an elementary photon, then through the electron with which it scatter, and then trough a positron with which the electron collides.
MultiParticlePath
An multi-particle path is a causal path of quantum entities of different type, following the causal connection between an initial quantum up to the final one, regardless on the fact that causality is passing through elementary particles of different types.
For example, a path starting from an elementary photon, then through the electron with which it scatter, and then trough a positron with which the electron collides.
A chausal path whose quantum parts belongs to at least two different standard model fundamental types.
Soldering
Method of joining metallic materials with the aid of a molten filler metal (solder), optionally with the use of flow agents
Löten
Soldering
ParallelWorkflow
A workflow whose tasks are spatial tiles.
ParallelWorkflow
A workflow whose tasks are spatial tiles.
Pt
PlatinumSymbol
The symbol that stands for the platinum atom.
PlatinumSymbol
The symbol that stands for the platinum atom.
IsobaricHeatCapacity
Heat capacity at constant pressure.
HeatCapacityAtConstantPressure
IsobaricHeatCapacity
https://www.wikidata.org/wiki/Q112187490
https://www.electropedia.org/iev/iev.nsf/display?openform&ievref=113-04-49
5-16.2
Heat capacity at constant pressure.
HeatCapacity
Examples of condition might be constant volume or constant pressure for a gas.
Quantity C = dQ/dT, when the thermodynamic temperature of a system is increased by dT as a result of the addition of a amount of heat dQ, under given condition.
HeatCapacity
https://qudt.org/vocab/quantitykind/HeatCapacity
https://www.wikidata.org/wiki/Q179388
https://www.electropedia.org/iev/iev.nsf/display?openform&ievref=113-04-47
https://dbpedia.org/page/Heat_capacity
5-15
Quantity C = dQ/dT, when the thermodynamic temperature of a system is increased by dT as a result of the addition of a amount of heat dQ, under given condition.
https://en.wikipedia.org/wiki/Heat_capacity
https://doi.org/10.1351/goldbook.H02753
1.0
0.0
JoulePerKilogramKelvin
Specific heat capacity - The heat required to raise unit mass of a substance by unit temperature interval under specified conditions, such as constant pressure: usually measured in joules per kelvin per kilogram. Symbol c_p (for constant pressure) Also called specific heat.
-- QUDT
http://qudt.org/2.1/vocab/unit
Joule per Kilogram Kelvin
JoulePerKilogramKelvin
http://qudt.org/vocab/unit/J-PER-KiloGM-K
J.kg-1.K-1
J/(kg⋅K)
Specific heat capacity - The heat required to raise unit mass of a substance by unit temperature interval under specified conditions, such as constant pressure: usually measured in joules per kelvin per kilogram. Symbol c_p (for constant pressure) Also called specific heat.
-- QUDT
T-2 L+2 M0 I0 Θ-1 N0 J0
EntropyPerMassUnit
The class of units with dimensionality 'EntropyPerMass'.
EntropyPerMassUnit
The class of units with dimensionality 'EntropyPerMass'.
1.0
0.0
KelvinPerWatt
Thermal resistance is a heat property and a measure of a temperature difference by which an object or material resists a heat flow (heat per time unit or thermal resistance). Thermal resistance is the reciprocal thermal conductance. Absolute thermal resistance is the temperature difference across a structure when a unit of heat energy flows through it in unit time. It is the reciprocal of thermal conductance. The SI units of thermal resistance are kelvins per watt or the equivalent degrees Celsius per watt (the two are the same since as intervals).
-- QUDT
http://qudt.org/2.1/vocab/unit
Kelvin per Watt
KelvinPerWatt
http://qudt.org/vocab/unit/K-PER-W
K.W-1
K/W
K/W
Thermal resistance is a heat property and a measure of a temperature difference by which an object or material resists a heat flow (heat per time unit or thermal resistance). Thermal resistance is the reciprocal thermal conductance. Absolute thermal resistance is the temperature difference across a structure when a unit of heat energy flows through it in unit time. It is the reciprocal of thermal conductance. The SI units of thermal resistance are kelvins per watt or the equivalent degrees Celsius per watt (the two are the same since as intervals).
-- QUDT
T+3 L-2 M-1 I0 Θ+1 N0 J0
ThermalResistanceUnit
The class of units with dimensionality 'ThermalResistance'.
ThermalResistanceUnit
The class of units with dimensionality 'ThermalResistance'.
StandaloneModelSimulation
A standalone simulation, where a single physics equation is solved.
StandaloneModelSimulation
A standalone simulation, where a single physics equation is solved.
PhysicsBasedSimulation
A simulation that relies on physics based models, according to the Review of Materials Modelling and CWA 17284:2018.
CEN Workshop Agreement – CWA 17284 “Materials modelling – terminology, classification and metadata”
PhysicsBasedSimulation
A simulation that relies on physics based models, according to the Review of Materials Modelling and CWA 17284:2018.
96
247.07035
CuriumAtom
Atom subclass for curium.
CuriumAtom
Atom subclass for curium.
ElementalSubstance
A chemical substance composed of atoms with the same number of protons in the atomic nucleus.
PureSubstance
ElementalSubstance
A chemical substance composed of atoms with the same number of protons in the atomic nucleus.
https://doi.org/10.1351/goldbook.C01022
Vergence
In geometrical optics, vergence describes the curvature of optical wavefronts.
Vergence
http://qudt.org/vocab/quantitykind/Curvature
In geometrical optics, vergence describes the curvature of optical wavefronts.
ComputerScience
A well-formed formula in computer science may be or not be interpreted by a computer. For example pseudo-code is only intended for human consumption.
A well-formed formula that follows the syntactic rules of computer science.
ComputerScience
A well-formed formula that follows the syntactic rules of computer science.
A well-formed formula in computer science may be or not be interpreted by a computer. For example pseudo-code is only intended for human consumption.
AlgebricEquation
An 'equation' that has parts two 'polynomial'-s
2 * a - b = c
AlgebricEquation
Equation
An equation with variables can always be represented as:
f(v0, v1, ..., vn) = g(v0, v1, ..., vn)
where f is the left hand and g the right hand side expressions and v0, v1, ..., vn are the variables.
The class of 'mathematical'-s that stand for a statement of equality between two mathematical expressions.
2+3 = 5
x^2 +3x = 5x
dv/dt = a
sin(x) = y
Equation
The class of 'mathematical'-s that stand for a statement of equality between two mathematical expressions.
DerivedQuantity
"Quantity, in a system of quantities, defined in terms of the base quantities of that system".
DerivedQuantity
"Quantity, in a system of quantities, defined in terms of the base quantities of that system".
derived quantity
InternationalSystemOfQuantity
Quantities declared under the ISO 80000.
https://www.iso.org/obp/ui/#iso:std:iso:80000:-1:ed-1:v1:en:sec:3.1
InternationalSystemOfQuantity
Quantities declared under the ISO 80000.
https://en.wikipedia.org/wiki/International_System_of_Quantities
Variable
A variable is a symbolic object that stands for any other mathematical object, such as number, a vector, a matrix, a function, the argument of a function, a set, an element of a set.
x
k
Variable
A variable is a symbolic object that stands for any other mathematical object, such as number, a vector, a matrix, a function, the argument of a function, a set, an element of a set.
90
232.0377
ThoriumAtom
Atom subclass for thorium.
ThoriumAtom
Atom subclass for thorium.
Fe
IronSymbol
The symbol that stands for the iron atom.
IronSymbol
The symbol that stands for the iron atom.
1.0
0.0
CubicMetre
The SI unit of volume, equal to 1.0e6 cm3, 1000 liters, 35.3147 ft3, or 1.30795 yd3. A cubic meter holds about 264.17 U.S. liquid gallons or 219.99 British Imperial gallons.
-- QUDT
CubicMetre
MTQ
http://qudt.org/vocab/unit/M3
http://www.ontology-of-units-of-measure.org/resource/om-2/cubicMetre
m3
http://dbpedia.org/resource/Cubic_metre
m³
The SI unit of volume, equal to 1.0e6 cm3, 1000 liters, 35.3147 ft3, or 1.30795 yd3. A cubic meter holds about 264.17 U.S. liquid gallons or 219.99 British Imperial gallons.
-- QUDT
http://en.wikipedia.org/wiki/Cubic_metre?oldid=490956678
IsochoricHeatCapacity
Heat capacity at constant volume.
HeatCapacityAtConstantVolume
IsochoricHeatCapacity
https://www.wikidata.org/wiki/Q112187521
https://www.electropedia.org/iev/iev.nsf/display?openform&ievref=113-04-50
5-16.3
Heat capacity at constant volume.
NumericData
A symbolic data representing a numerical value.
NumericData
A symbolic data representing a numerical value.
JavaScript
JavaScript
ScriptingLanguage
A programming language that is executed through runtime interpretation.
ScriptingLanguage
A programming language that is executed through runtime interpretation.
T+2 L0 M0 I0 Θ0 N0 J0
SquareTimeUnit
The class of units with dimensionality 'SquareTime'.
SquareTimeUnit
The class of units with dimensionality 'SquareTime'.
StateOfMatter
A superclass made as the disjoint union of all the form under which matter can exist.
In physics, a state of matter is one of the distinct forms in which matter can exist. Four states of matter are observable in everyday life: solid, liquid, gas, and plasma.
StateOfMatter
A superclass made as the disjoint union of all the form under which matter can exist.
In physics, a state of matter is one of the distinct forms in which matter can exist. Four states of matter are observable in everyday life: solid, liquid, gas, and plasma.
https://en.wikipedia.org/wiki/State_of_matter
0.0
1.0
NewtonMetrePerMetrePerRadian
Newton metre per metre and radian.
http://qudt.org/2.1/vocab/unit
NewtonMetrePerMetrePerRadian
http://qudt.org/vocab/unit/N-M-PER-M-RAD
N⋅m/(m⋅rad)
Newton metre per metre and radian.
SuperconductorEnergyGap
Width of the forbidden energy band in a superconductor.
SuperconductorEnergyGap
https://qudt.org/vocab/quantitykind/SuperconductorEnergyGap
https://www.wikidata.org/wiki/Q106127898
https://www.electropedia.org/iev/iev.nsf/display?openform&ievref=815-10-28
12-37
Width of the forbidden energy band in a superconductor.
GapEnergy
Smallest energy difference between the lowest level of conduction band and the highest level of valence band at zero thermodynamic temperature.
BandgapEnergy
GapEnergy
https://www.wikidata.org/wiki/Q103982939
https://www.electropedia.org/iev/iev.nsf/display?openform&ievref=113-06-16
12-27.2
Smallest energy difference between the lowest level of conduction band and the highest level of valence band at zero thermodynamic temperature.
https://doi.org/10.1351/goldbook.B00593
1.0
0.0
MoleKelvin
Mole Kelvin is a unit for `Temperature Amount Of Substance` expressed as mol-K.
-- QUDT
http://qudt.org/2.1/vocab/unit
Mole Kelvin
MoleKelvin
http://qudt.org/vocab/unit/MOL-K
mol.K
mol⋅K
Mole Kelvin is a unit for `Temperature Amount Of Substance` expressed as mol-K.
-- QUDT
FlameCutting
FlameCutting
118.71
50
TinAtom
Atom subclass for tin.
TinAtom
Atom subclass for tin.
StandaloneAtom
A standalone atom can be bonded with other atoms by intermolecular forces (i.e. dipole–dipole, London dispersion force, hydrogen bonding), since this bonds does not involve electron sharing.
An atom that does not share electrons with other atoms.
StandaloneAtom
An atom that does not share electrons with other atoms.
1.0
0.0
JoulePerSquareMetre
Joule Per Square Meter (J/m²) is a unit in the category of Energy density. It is also known as joules per square meter, joule per square metre, joule/square meter, joule/square metre. This unit is commonly used in the SI unit system.
-- QUDT
http://qudt.org/2.1/vocab/unit
Joule per Square Metre
JoulePerSquareMetre
http://qudt.org/vocab/unit/J-PER-M2
J.m-2
J/m2
J/m²
Joule Per Square Meter (J/m²) is a unit in the category of Energy density. It is also known as joules per square meter, joule per square metre, joule/square meter, joule/square metre. This unit is commonly used in the SI unit system.
-- QUDT
16
32.06
SulfurAtom
Atom subclass for sulfur.
SulfurAtom
Atom subclass for sulfur.
10000.0
ha
0.0
Hectare
A non-SI metric unit of area defined as the square with 100-metre sides.
The customary metric unit of land area, equal to 100 ares. One hectare is a square hectometer, that is, the area of a square 100 meters on each side: exactly 10 000 square meters or approximately 107 639.1 square feet, 11 959.9 square yards, or 2.471 054 acres.
-- QUDT
Hectare
HAR
http://qudt.org/vocab/unit/HA
har
http://dbpedia.org/page/Hectare
A non-SI metric unit of area defined as the square with 100-metre sides.
The customary metric unit of land area, equal to 100 ares. One hectare is a square hectometer, that is, the area of a square 100 meters on each side: exactly 10 000 square meters or approximately 107 639.1 square feet, 11 959.9 square yards, or 2.471 054 acres.
-- QUDT
https://en.wikipedia.org/wiki/Hectare
1.0
0.0
JoulePerMole
The joule per mole (symbol: J· mol⁻¹) is an SI derived unit of energy per amount of material. Energy is measured in joules, and the amount of material is measured in moles. Physical quantities measured in J· mol⁻¹) usually describe quantities of energy transferred during phase transformations or chemical reactions. Division by the number of moles facilitates comparison between processes involving different quantities of material and between similar processes involving different types of materials. The meaning of such a quantity is always context-dependent and, particularly for chemical reactions, is dependent on the (possibly arbitrary) definition of a 'mole' for a particular process.
-- QUDT
http://qudt.org/2.1/vocab/unit
Joule per Mole
JoulePerMole
http://qudt.org/vocab/unit/J-PER-MOL
J.mol-1
J/mol
The joule per mole (symbol: J· mol⁻¹) is an SI derived unit of energy per amount of material. Energy is measured in joules, and the amount of material is measured in moles. Physical quantities measured in J· mol⁻¹) usually describe quantities of energy transferred during phase transformations or chemical reactions. Division by the number of moles facilitates comparison between processes involving different quantities of material and between similar processes involving different types of materials. The meaning of such a quantity is always context-dependent and, particularly for chemical reactions, is dependent on the (possibly arbitrary) definition of a 'mole' for a particular process.
-- QUDT
T-2 L+2 M+1 I0 Θ0 N-1 J0
EnergyPerAmountUnit
The class of units with dimensionality 'EnergyPerAmount'.
EnergyPerAmountUnit
The class of units with dimensionality 'EnergyPerAmount'.
T0 L-2 M0 I+1 Θ-1 N0 J0
ElectricCurrentDensityPerTemperatureUnit
The class of units with dimensionality 'ElectricCurrentDensityPerTemperature'.
ElectricCurrentDensityPerTemperatureUnit
The class of units with dimensionality 'ElectricCurrentDensityPerTemperature'.
3600.0
0.0
WattHourPerKilogram
A unit of specific energy commonly used to measure the density of energy in batteries and capacitors.
WattHourPerKilogram
A unit of specific energy commonly used to measure the density of energy in batteries and capacitors.
https://en.wikipedia.org/wiki/Watt-hour_per_kilogram
SolidAerosol
An aerosol composed of fine solid particles in air or another gas.
SolidAerosol
An aerosol composed of fine solid particles in air or another gas.
Aerosol
A colloid composed of fine solid particles or liquid droplets in air or another gas.
Aerosol
A colloid composed of fine solid particles or liquid droplets in air or another gas.
SIAcceptedPrefixedUnit
Non-SI prefixed units that have been accepted by SI to be used together with the SI system.
SIAcceptedPrefixedUnit
Non-SI prefixed units that have been accepted by SI to be used together with the SI system.
Lv
LivermoriumSymbol
The symbol that stands for the livermorium atom.
LivermoriumSymbol
The symbol that stands for the livermorium atom.
SIMetricPrefixedUnit
A SI base or special unit with a metric prefix.
The presence of the prefix makes this units non-coherent with SI system.
SIMetricPrefixedUnit
A SI base or special unit with a metric prefix.
Y
YttriumSymbol
The symbol that stands for the yttrium atom.
YttriumSymbol
The symbol that stands for the yttrium atom.
HyperfineStructureQuantumNumber
Quantum number of an atom describing the inclination of the nuclear spin with respect to a quantization axis given by the magnetic field produced by the orbital electrons.
HyperfineStructureQuantumNumber
https://qudt.org/vocab/quantitykind/HyperfineStructureQuantumNumber
https://www.wikidata.org/wiki/Q97577449
10-13.8
Quantum number of an atom describing the inclination of the nuclear spin with respect to a quantization axis given by the magnetic field produced by the orbital electrons.
QuantumNumber
Number describing a particular state of a quantum system.
QuantumNumber
https://qudt.org/vocab/quantitykind/QuantumNumber
https://www.wikidata.org/wiki/Q232431
10-13.1
Number describing a particular state of a quantum system.
S
SulfurSymbol
The symbol that stands for the sulfur atom.
SulfurSymbol
The symbol that stands for the sulfur atom.
PhysicalPhenomenon
A 'process' that is recognized by physical sciences and is categorized accordingly.
While every 'process' in the EMMO involves physical objects, this class is devoted to represent real world objects that express a phenomenon relevant for the ontologist
PhysicalPhenomenon
A 'process' that is recognized by physical sciences and is categorized accordingly.
MaterialSynthesis
Deals with undefined shapes both input and output.
The creation of a material entity starting from fundamental substances, involving chemical phenomena (e.g. reaction, bonding).
MaterialSynthesis
The creation of a material entity starting from fundamental substances, involving chemical phenomena (e.g. reaction, bonding).
Deals with undefined shapes both input and output.
MaterialsProcessing
A manufacturing process aimed to modify the precursor objects through a physical process (involving other materials, energy, manipulation) to change its material properties.
A material process requires the output to be classified as an individual of a material subclass.
ContinuumManufacturing
Synthesis of materials, quenching, the preparation of a cake, tempering of a steel beam.
MaterialsProcessing
A manufacturing process aimed to modify the precursor objects through a physical process (involving other materials, energy, manipulation) to change its material properties.
A material process requires the output to be classified as an individual of a material subclass.
Stage
A process which is an holistic temporal part of a process.
Moving a leg is a stage of the process of running.
Stage
A process which is an holistic temporal part of a process.
ThermochemicalTreatment
ThermochemicalTreatment
CompositeFermion
A non-elementary particle (bonded) of a fundamental fermionic type (half-integer spin).
Examples of composite particles with half-integer spin:
spin 1/2: He3 in ground state, proton, neutron
spin 3/2: He5 in ground state, Delta baryons (excitations of the proton and neutron)
CompositeFermion
A non-elementary particle (bonded) of a fundamental fermionic type (half-integer spin).
W
Watt
SI unit for power.
The SI unit of power. Power is the rate at which work is done, or (equivalently) the rate at which energy is expended. One watt is equal to a power rate of one joule of work per second of time. This unit is used both in mechanics and in electricity, so it links the mechanical and electrical units to one another. In mechanical terms, one watt equals about 0.001 341 02 horsepower (hp) or 0.737 562 foot-pound per second (lbf/s). In electrical terms, one watt is the power produced by a current of one ampere flowing through an electric potential of one volt. The name of the unit honors James Watt (1736-1819), the British engineer whose improvements to the steam engine are often credited with igniting the Industrial Revolution.
-- QUDT
Watt
WTT
http://qudt.org/vocab/unit/W
W
http://dbpedia.org/resource/Watt
SI unit for power.
The SI unit of power. Power is the rate at which work is done, or (equivalently) the rate at which energy is expended. One watt is equal to a power rate of one joule of work per second of time. This unit is used both in mechanics and in electricity, so it links the mechanical and electrical units to one another. In mechanical terms, one watt equals about 0.001 341 02 horsepower (hp) or 0.737 562 foot-pound per second (lbf/s). In electrical terms, one watt is the power produced by a current of one ampere flowing through an electric potential of one volt. The name of the unit honors James Watt (1736-1819), the British engineer whose improvements to the steam engine are often credited with igniting the Industrial Revolution.
-- QUDT
http://en.wikipedia.org/wiki/Watt?oldid=494906356
https://doi.org/10.1351/goldbook.W06656
T-3 L+2 M+1 I0 Θ0 N0 J0
PowerUnit
The class of units with dimensionality 'Power'.
PowerUnit
The class of units with dimensionality 'Power'.
1.0
0.0
SquareMetreCubicHertz
Square metre and cubic Hertz.
http://qudt.org/2.1/vocab/unit
SquareMetreCubicHertz
http://qudt.org/vocab/unit/M2-HZ3
m2.Hz3
m²⋅Hz³
Square metre and cubic Hertz.
T-3 L+2 M0 I0 Θ0 N0 J0
AbsorbedDoseRateUnit
The class of units with dimensionality 'AbsorbedDoseRate'.
AbsorbedDoseRateUnit
The class of units with dimensionality 'AbsorbedDoseRate'.
Geometrical
A 'graphical' aimed to represent a geometrical concept.
A geometrical object can be expressed in many different forms.
For example, a line can be expressed by:
a) an equation like y=mx+q, which is both an 'equation' and a 'geometrical'
b) a line drawn with a pencil on a paper, which is simply a 'graphical' object
c) a set of axioms, when the properties of a line are inferred by the interpreter reading them, that are both 'graphical' and also 'formula'
The case a) is a geometrical and mathematical, b) is geometrical and pictorial, while c) is geometrical and a composition of idiomatic strings.
Geometrical
A 'graphical' aimed to represent a geometrical concept.
0.0
1.0
CandelaPerSquareMetre
The candela per square metre (cd/m²) is the derived SI unit of luminance. The unit is based on the candela, the SI unit of luminous intensity, and the square metre, the SI unit of area. Nit (nt) is a deprecated non-SI name also used for this unit (1 nit = 1 cd/m²). As a measure of light emitted per unit area, this unit is frequently used to specify the brightness of a display device. Most consumer desktop liquid crystal displays have luminances of 200 to 300 cd/m²; the sRGB spec for monitors targets 80 cd/m2. HDTVs range from 450 to about 1000 cd/m2. Typically, calibrated monitors should have a brightness of 120 cd/m². Nit is believed to come from the Latin word nitere, to shine.
-- QUDT
http://qudt.org/2.1/vocab/unit
candela per square metre
CandelaPerSquareMetre
http://qudt.org/vocab/unit/CD-PER-M2
cd.m-2
cd/m2
cd/m²
The candela per square metre (cd/m²) is the derived SI unit of luminance. The unit is based on the candela, the SI unit of luminous intensity, and the square metre, the SI unit of area. Nit (nt) is a deprecated non-SI name also used for this unit (1 nit = 1 cd/m²). As a measure of light emitted per unit area, this unit is frequently used to specify the brightness of a display device. Most consumer desktop liquid crystal displays have luminances of 200 to 300 cd/m²; the sRGB spec for monitors targets 80 cd/m2. HDTVs range from 450 to about 1000 cd/m2. Typically, calibrated monitors should have a brightness of 120 cd/m². Nit is believed to come from the Latin word nitere, to shine.
-- QUDT
1.0
0.0
CubicMetrePerKelvin
Cubic metre per Kelvin.
http://qudt.org/2.1/vocab/unit
CubicMetrePerKelvin
http://qudt.org/vocab/unit/M3-PER-K
m3.K-1
m³/K
Cubic metre per Kelvin.
WaveVector
Vector k in the expression ω t−k⋅r+ϑ0 of the phase of a sinusoidal wave.
WaveVector
https://www.wikidata.org/wiki/Q657009
https://www.electropedia.org/iev/iev.nsf/display?openform&ievref=103-10-09
3-21
Vector k in the expression ω t−k⋅r+ϑ0 of the phase of a sinusoidal wave.
https://en.wikipedia.org/wiki/Wave_vector
DippingForms
DippingForms
T-3 L+4 M+1 I0 Θ0 N0 J0
PowerAreaUnit
The class of units with dimensionality 'PowerArea'.
PowerAreaUnit
The class of units with dimensionality 'PowerArea'.
1.0
0.0
KelvinSquareMetrePerKilogramPerSecond
Kelvin square metres per kilogram and second.
http://qudt.org/2.1/vocab/unit
KelvinSquareMetrePerKilogramPerSecond
http://qudt.org/vocab/unit/K-M2-PER-KiloGM-SEC
K.m2.kg-1.s-1
K⋅m²/(kg⋅s)
Kelvin square metres per kilogram and second.
LinearMassDensity
Mass per length.
LinearDensity
LineicMass
LinearMassDensity
https://qudt.org/vocab/quantitykind/LinearDensity
https://www.wikidata.org/wiki/Q56298294
https://www.electropedia.org/iev/iev.nsf/display?openform&ievref=113-03-11
4-6
Mass per length.
1.0
0.0
HertzMetre
product of the SI derived unit hertz and the SI base unit metre
-- QUDT
http://qudt.org/2.1/vocab/unit
Hertz Metre
HertzMetre
http://qudt.org/vocab/unit/HZ-M
Hz.m
Hz⋅M
product of the SI derived unit hertz and the SI base unit metre
-- QUDT