# Saved by TopBraid on Wed Jun 01 22:57:33 PDT 2011
# baseURI: http://qudt.org/1.1/schema/quantity
# imports: http://www.linkedmodel.org/1.2/schema/vaem
# imports: http://www.linkedmodel.org/1.0/schema/dtype
# imports: http://qudt.org/1.1/schema/qudt

@prefix creativecommons:  <http://creativecommons.org/ns#> .
@prefix dc:      <http://purl.org/dc/elements/1.1/> .
@prefix dtype:   <http://www.linkedmodel.org/schema/dtype#> .
@prefix owl:     <http://www.w3.org/2002/07/owl#> .
@prefix quantity:  <http://qudt.org/schema/quantity#> .
@prefix quantity-1.1:  <http://qudt.org/1.1/schema/quantity#> .
@prefix qudt:    <http://qudt.org/schema/qudt#> .
@prefix qudt-1.1:  <http://qudt.org/1.1/schema/qudt#> .
@prefix rdf:     <http://www.w3.org/1999/02/22-rdf-syntax-ns#> .
@prefix rdfs:    <http://www.w3.org/2000/01/rdf-schema#> .
@prefix skos:    <http://www.w3.org/2004/02/skos/core#> .
@prefix vaem:    <http://www.linkedmodel.org/schema/vaem#> .
@prefix voag:    <http://voag.linkedmodel.org/schema/voag#> .
@prefix xsd:     <http://www.w3.org/2001/XMLSchema#> .

<http://qudt.org/1.1/schema/quantity>
      rdf:type owl:Ontology ;
      rdfs:label "Quantity Schema"^^xsd:string ;
      dc:contributor "Ralph Hodgson"^^xsd:string , "David Price"^^xsd:string , "Irene Polikoff"^^xsd:string , "Daniel Mekonnen"^^xsd:string ;
      dc:creator "James E. Masters"^^xsd:string ;
      dc:rights "The QUDT Ontologies are issued under a Creative Commons Attribution Share Alike 3.0 United States License. Attribution should be made to NASA Ames Research Center and TopQuadrant, Inc."^^xsd:string ;
      dc:subject "Quantities, Units, and Dimensions"^^xsd:string ;
      dc:title "QUDT Quantity Ontology Version 1.1"^^xsd:string ;
      voag:hasLicenseType <voag:CC-SHAREALIKE_3PT0-US> ;
      voag:withAttributionTo
              voag:TopQuadrantAttribution , qudt:NASA-ARC-Attribution ;
      vaem:acronym "QUDT"^^xsd:string ;
      vaem:dateCreated "2011-01-04T14:44:26"^^xsd:dateTime ;
      vaem:description "The 'Quantity' Ontology provides a schema for defining quantities. A quantity is a measure of an observable phenomenon, that, when associated with something, becomes a property of that thing; a particular object, event, or physical system. A quantity has meaning in the context of a measurement (i.e. the thing measured, the measured value, the accuracy of measurement, etc.) whereas the underlying quantity kind is independent of any particular measurement. Thus, length is a quantity kind while the height of a rocket is a specific quantity of length; its magnitude that may be expressed in meters, feet, inches, etc.  Or, as stated at Wikipedia, in the language of measurement, quantities are quantifiable aspects of the world, such as time, distance, velocity, mass, momentum, energy, and weight, and units are used to describe their measure. Many of these quantities are related to each other by various physical laws, and as a result the units of some of the quantities can be expressed as products (or ratios) of powers of other units (e.g., momentum is mass times velocity and velocity is measured in distance divided by time)."^^xsd:string ;
      vaem:hasAspectScope "Basic treatment of quantities and units. No dimensional treatment in this graph."^^xsd:string ;
      vaem:hasCatalogEntry
              <http://qudt.org/catalog/qudt#QUDT-QUANTITY-SchemaCatalogEntry> ;
      vaem:hasDisciplineScope
              "All disciplines"^^xsd:string ;
      vaem:hasDomainScope "Science, Medicine and Engineering"^^xsd:string ;
      vaem:hasRole vaem:SchemaGraph ;
      vaem:intent "The intent of the QUDT Quantity Ontology is to specify an OWL schema for describing the attributes and fundamental relationships of quantities. A quantity is a kind of property which exists as a magnitude or multitude with a unit of measure. When a quantity is associated with some thing it becomes a property of that thing."^^xsd:string ;
      vaem:lastUpdated "$LastChangedDate: 2011-06-01 13:34:19 -0700 (Wed, 01 Jun 2011) $"^^xsd:string ;
      vaem:namespace "http://qudt.org/schema/quantity"^^xsd:string ;
      vaem:namespacePrefix
              "quantity"^^xsd:string ;
      vaem:revisionNumber "1.1"^^xsd:string ;
      vaem:specificity 1 ;
      vaem:usesNonImportedResource
              skos:closeMatch , dc:title , dc:contributor , dc:author , dc:rights , skos:exactMatch , dc:creator , dc:description , dc:subject , <voag:CC-SHAREALIKE_3PT0-US> ;
      owl:imports <http://www.linkedmodel.org/1.2/schema/vaem> , <http://qudt.org/1.1/schema/qudt> , <http://www.linkedmodel.org/1.0/schema/dtype> ;
      owl:versionIRI <http://qudt.org/1.1/schema/quantity> ;
      owl:versionInfo "$Id: OSG_quantity-(v1.1).ttl 4988 2011-06-01 20:34:19Z RalphHodgson $"^^xsd:string .

qudt:AbsorbedDoseRateUnit
      rdfs:subClassOf
              [ rdf:type owl:Restriction ;
                owl:hasValue <http://qudt.org/vocab/quantity#AbsorbedDoseRate> ;
                owl:onProperty qudt:quantityKind
              ] .

qudt:AbsorbedDoseUnit
      rdfs:subClassOf
              [ rdf:type owl:Restriction ;
                owl:hasValue <http://qudt.org/vocab/quantity#AbsorbedDose> ;
                owl:onProperty qudt:quantityKind
              ] .

qudt:ActivityUnit
      rdfs:subClassOf
              [ rdf:type owl:Restriction ;
                owl:hasValue <http://qudt.org/vocab/quantity#Activity> ;
                owl:onProperty qudt:quantityKind
              ] .

qudt:AmountOfSubstanceTemperatureUnit
      rdfs:subClassOf
              [ rdf:type owl:Restriction ;
                owl:hasValue <http://qudt.org/vocab/quantity#TemperatureAmountOfSubstance> ;
                owl:onProperty qudt:quantityKind
              ] .

qudt:AmountOfSubstanceUnit
      rdfs:subClassOf
              [ rdf:type owl:Restriction ;
                owl:hasValue <http://qudt.org/vocab/quantity#AmountOfSubstance> ;
                owl:onProperty qudt:quantityKind
              ] .

qudt:AngleUnit
      rdfs:subClassOf
              [ rdf:type owl:Restriction ;
                owl:hasValue <http://qudt.org/vocab/quantity#Angle> ;
                owl:onProperty qudt:quantityKind
              ] .

qudt:AngularAccelerationUnit
      rdfs:subClassOf
              [ rdf:type owl:Restriction ;
                owl:hasValue <http://qudt.org/vocab/quantity#AngularAcceleration> ;
                owl:onProperty qudt:quantityKind
              ] .

qudt:AngularMassUnit
      rdfs:subClassOf
              [ rdf:type owl:Restriction ;
                owl:hasValue <http://qudt.org/vocab/quantity#MomentOfInertia> ;
                owl:onProperty qudt:quantityKind
              ] .

qudt:AngularMomentumUnit
      rdfs:subClassOf
              [ rdf:type owl:Restriction ;
                owl:hasValue <http://qudt.org/vocab/quantity#AngularMomentum> ;
                owl:onProperty qudt:quantityKind
              ] .

qudt:AngularVelocityUnit
      rdfs:subClassOf
              [ rdf:type owl:Restriction ;
                owl:hasValue <http://qudt.org/vocab/quantity#AngularVelocity> ;
                owl:onProperty qudt:quantityKind
              ] .

qudt:AreaAngleUnit
      rdfs:subClassOf
              [ rdf:type owl:Restriction ;
                owl:hasValue <http://qudt.org/vocab/quantity#AreaAngle> ;
                owl:onProperty qudt:quantityKind
              ] .

qudt:AreaTemperatureUnit
      rdfs:subClassOf
              [ rdf:type owl:Restriction ;
                owl:hasValue <http://qudt.org/vocab/quantity#AreaTemperature> ;
                owl:onProperty qudt:quantityKind
              ] .

qudt:AreaThermalExpansionUnit
      rdfs:subClassOf
              [ rdf:type owl:Restriction ;
                owl:hasValue <http://qudt.org/vocab/quantity#AreaThermalExpansion> ;
                owl:onProperty qudt:quantityKind
              ] .

qudt:AreaTimeTemperatureUnit
      rdfs:subClassOf
              [ rdf:type owl:Restriction ;
                owl:hasValue <http://qudt.org/vocab/quantity#AreaTimeTemperature> ;
                owl:onProperty qudt:quantityKind
              ] .

qudt:AreaUnit
      rdfs:subClassOf
              [ rdf:type owl:Restriction ;
                owl:hasValue <http://qudt.org/vocab/quantity#Area> ;
                owl:onProperty qudt:quantityKind
              ] .

qudt:AtomicChargeUnit
      rdfs:subClassOf
              [ rdf:type owl:Restriction ;
                owl:hasValue <http://qudt.org/vocab/quantity#AtomicCharge> ;
                owl:onProperty qudt:quantityKind
              ] .

qudt:AtomicPhysicsQuantityKind
      rdf:type qudt:QuantityKindCategory ;
      rdfs:label "Atomic Physics" ;
      rdfs:subClassOf qudt:QuantityKind .

qudt:AtomicPhysicsUnit
      rdfs:subClassOf
              [ rdf:type owl:Restriction ;
                owl:allValuesFrom qudt:AtomicPhysicsQuantityKind ;
                owl:onProperty qudt:quantityKind
              ] ;
      owl:equivalentClass
              [ rdf:type owl:Restriction ;
                owl:allValuesFrom qudt:AtomicPhysicsQuantityKind ;
                owl:onProperty qudt:quantityKind
              ] .

qudt:BendingMomentOrTorqueUnit
      rdfs:subClassOf
              [ rdf:type owl:Restriction ;
                owl:hasValue <http://qudt.org/vocab/quantity#LengthByForce> ;
                owl:onProperty qudt:quantityKind
              ] .

qudt:BiologyQuantityKind
      rdf:type qudt:QuantityKindCategory , owl:Class ;
      rdfs:label "Biology"^^xsd:string ;
      rdfs:subClassOf qudt:QuantityKind .

qudt:CapacitanceUnit
      rdfs:subClassOf
              [ rdf:type owl:Restriction ;
                owl:hasValue <http://qudt.org/vocab/quantity#Capacitance> ;
                owl:onProperty qudt:quantityKind
              ] .

qudt:CatalyticActivityUnit
      rdfs:subClassOf
              [ rdf:type owl:Restriction ;
                owl:hasValue <http://qudt.org/vocab/quantity#CatalyticActivity> ;
                owl:onProperty qudt:quantityKind
              ] .

qudt:ChemistryQuantityKind
      rdf:type owl:Class , qudt:QuantityKindCategory ;
      rdfs:label "Chemistry quantity kind"^^xsd:string ;
      rdfs:subClassOf qudt:QuantityKind ;
      skos:exactMatch <http://dbpedia.org/resource/Chemistry> .

qudt:ChemistryUnit
      rdfs:subClassOf
              [ rdf:type owl:Restriction ;
                owl:allValuesFrom qudt:ChemistryQuantityKind ;
                owl:onProperty qudt:quantityKind
              ] ;
      owl:equivalentClass
              [ rdf:type owl:Restriction ;
                owl:allValuesFrom qudt:ChemistryQuantityKind ;
                owl:onProperty qudt:quantityKind
              ] .

qudt:CoefficientOfHeatTransferUnit
      rdfs:subClassOf
              [ rdf:type owl:Restriction ;
                owl:hasValue <http://qudt.org/vocab/quantity#CoefficientOfHeatTransfer> ;
                owl:onProperty qudt:quantityKind
              ] .

qudt:CommunicationsQuantityKind
      rdf:type owl:Class , qudt:QuantityKindCategory ;
      rdfs:label "Communications"^^xsd:string ;
      rdfs:subClassOf qudt:QuantityKind ;
      skos:exactMatch <http://dbpedia.org/resource/Communication> .

qudt:ConcentrationUnit
      rdfs:subClassOf
              [ rdf:type owl:Restriction ;
                owl:hasValue <http://qudt.org/vocab/quantity#AmountOfSubstancePerUnitVolume> ;
                owl:onProperty qudt:quantityKind
              ] .

qudt:ConductanceUnit
      rdfs:subClassOf
              [ rdf:type owl:Restriction ;
                owl:hasValue <http://qudt.org/vocab/quantity#ElectricConductivity> ;
                owl:onProperty qudt:quantityKind
              ] .

qudt:ConstantValue
      rdf:type owl:Class ;
      rdfs:label "Constant value"^^xsd:string ;
      rdfs:subClassOf qudt:QuantityValue .

qudt:ContinuumMechanicsQuantityKind
      rdf:type owl:Class ;
      rdfs:label "Continuum Mechanics Quantity Kind"^^xsd:string ;
      rdfs:subClassOf qudt:MechanicsQuantityKind .

qudt:CurrencyUnit
      rdfs:subClassOf
              [ rdf:type owl:Restriction ;
                owl:hasValue <http://qudt.org/vocab/quantity#Currency> ;
                owl:onProperty qudt:quantityKind
              ] .

qudt:CurrentPerAngleUnit
      rdfs:subClassOf
              [ rdf:type owl:Restriction ;
                owl:hasValue <http://qudt.org/vocab/quantity#ElectricCurrentPerAngle> ;
                owl:onProperty qudt:quantityKind
              ] .

qudt:CurvatureUnit
      rdfs:subClassOf
              [ rdf:type owl:Restriction ;
                owl:hasValue <http://qudt.org/vocab/quantity#Curvature> ;
                owl:onProperty qudt:quantityKind
              ] .

qudt:DataRateUnit
      rdfs:subClassOf
              [ rdf:type owl:Restriction ;
                owl:hasValue <http://qudt.org/vocab/quantity#DataRate> ;
                owl:onProperty qudt:quantityKind
              ] .

qudt:DimensionlessUnit
      rdfs:subClassOf
              [ rdf:type owl:Restriction ;
                owl:hasValue <http://qudt.org/vocab/quantity#Dimensionless> ;
                owl:onProperty qudt:quantityKind
              ] ;
      rdfs:subClassOf
              [ rdf:type owl:Restriction ;
                owl:hasValue <http://qudt.org/vocab/quantity#Dimensionless> ;
                owl:onProperty qudt:quantityKind
              ] .

qudt:DoseEquivalentUnit
      rdfs:subClassOf
              [ rdf:type owl:Restriction ;
                owl:hasValue <http://qudt.org/vocab/quantity#DoseEquivalent> ;
                owl:onProperty qudt:quantityKind
              ] .

qudt:DynamicViscosityUnit
      rdfs:subClassOf
              [ rdf:type owl:Restriction ;
                owl:hasValue <http://qudt.org/vocab/quantity#DynamicViscosity> ;
                owl:onProperty qudt:quantityKind
              ] .

qudt:ElectricChargeAreaDensityUnit
      rdfs:subClassOf
              [ rdf:type owl:Restriction ;
                owl:hasValue <http://qudt.org/vocab/quantity#PolarizationField> ;
                owl:onProperty qudt:quantityKind
              ] .

qudt:ElectricChargeLineDensityUnit
      rdfs:subClassOf
              [ rdf:type owl:Restriction ;
                owl:hasValue <http://qudt.org/vocab/quantity#ElectricChargeLineDensity> ;
                owl:onProperty qudt:quantityKind
              ] .

qudt:ElectricChargePerAmountOfSubstanceUnit
      rdfs:subClassOf
              [ rdf:type owl:Restriction ;
                owl:hasValue <http://qudt.org/vocab/quantity#ElectricChargePerAmountOfSubstance> ;
                owl:onProperty qudt:quantityKind
              ] .

qudt:ElectricChargeUnit
      rdfs:subClassOf
              [ rdf:type owl:Restriction ;
                owl:hasValue <http://qudt.org/vocab/quantity#ElectricCharge> ;
                owl:onProperty qudt:quantityKind
              ] .

qudt:ElectricChargeVolumeDensityUnit
      rdfs:subClassOf
              [ rdf:type owl:Restriction ;
                owl:hasValue <http://qudt.org/vocab/quantity#ElectricChargeVolumeDensity> ;
                owl:onProperty qudt:quantityKind
              ] .

qudt:ElectricCurrentDensityUnit
      rdfs:subClassOf
              [ rdf:type owl:Restriction ;
                owl:hasValue <http://qudt.org/vocab/quantity#ElectricCurrentDensity> ;
                owl:onProperty qudt:quantityKind
              ] .

qudt:ElectricCurrentUnit
      rdfs:subClassOf
              [ rdf:type owl:Restriction ;
                owl:hasValue <http://qudt.org/vocab/quantity#ElectricCurrent> ;
                owl:onProperty qudt:quantityKind
              ] .

qudt:ElectricDipoleMomentUnit
      rdfs:subClassOf
              [ rdf:type owl:Restriction ;
                owl:hasValue <http://qudt.org/vocab/quantity#ElectricDipoleMoment> ;
                owl:onProperty qudt:quantityKind
              ] .

qudt:ElectricFieldStrengthUnit
      rdfs:subClassOf
              [ rdf:type owl:Restriction ;
                owl:hasValue <http://qudt.org/vocab/quantity#ElectricField> ;
                owl:onProperty qudt:quantityKind
              ] .

qudt:ElectricFluxDensityUnit
      rdfs:subClassOf
              [ rdf:type owl:Restriction ;
                owl:hasValue <http://qudt.org/vocab/quantity#ElectricDisplacementField> ;
                owl:onProperty qudt:quantityKind
              ] .

qudt:ElectricityAndMagnetismQuantityKind
      rdf:type qudt:QuantityKindCategory , owl:Class ;
      rdfs:label "Electricity and Magnetism"^^xsd:string ;
      rdfs:subClassOf qudt:QuantityKind .

qudt:ElectricityAndMagnetismUnit
      rdfs:subClassOf
              [ rdf:type owl:Restriction ;
                owl:allValuesFrom qudt:ElectricityAndMagnetismQuantityKind ;
                owl:onProperty qudt:quantityKind
              ] ;
      owl:equivalentClass
              [ rdf:type owl:Restriction ;
                owl:allValuesFrom qudt:ElectricityAndMagnetismQuantityKind ;
                owl:onProperty qudt:quantityKind
              ] .

qudt:EnergyAndWorkPerMassAmountOfSubstance
      rdfs:subClassOf
              [ rdf:type owl:Restriction ;
                owl:hasValue <http://qudt.org/vocab/quantity#EnergyAndWorkPerMassAmountOfSubstance> ;
                owl:onProperty qudt:quantityKind
              ] .

qudt:EnergyAndWorkUnit
      rdfs:subClassOf
              [ rdf:type owl:Restriction ;
                owl:hasValue <http://qudt.org/vocab/quantity#EnergyAndWork> ;
                owl:onProperty qudt:quantityKind
              ] .

qudt:EnergyDensityUnit
      rdfs:subClassOf
              [ rdf:type owl:Restriction ;
                owl:hasValue <http://qudt.org/vocab/quantity#EnergyDensity> ;
                owl:onProperty qudt:quantityKind
              ] .

qudt:EnergyPerAreaUnit
      rdfs:subClassOf
              [ rdf:type owl:Restriction ;
                owl:hasValue <http://qudt.org/vocab/quantity#EnergyPerArea> ;
                owl:onProperty qudt:quantityKind
              ] .

qudt:EnergyPerElectricChargeUnit
      rdfs:subClassOf
              [ rdf:type owl:Restriction ;
                owl:hasValue <http://qudt.org/vocab/quantity#ElectromotiveForce> ;
                owl:onProperty qudt:quantityKind
              ] .

qudt:ExposureUnit
      rdfs:subClassOf
              [ rdf:type owl:Restriction ;
                owl:hasValue <http://qudt.org/vocab/quantity#Exposure> ;
                owl:onProperty qudt:quantityKind
              ] .

qudt:FinancialQuantityKind
      rdf:type owl:Class , qudt:QuantityKindCategory ;
      rdfs:label "Financial"^^xsd:string ;
      rdfs:subClassOf qudt:QuantityKind ;
      skos:exactMatch <http://dbpedia.org/resource/Finance> .

qudt:FinancialUnit
      rdfs:subClassOf
              [ rdf:type owl:Restriction ;
                owl:allValuesFrom qudt:FinancialQuantityKind ;
                owl:onProperty qudt:quantityKind
              ] ;
      owl:equivalentClass
              [ rdf:type owl:Restriction ;
                owl:allValuesFrom qudt:FinancialQuantityKind ;
                owl:onProperty qudt:quantityKind
              ] .

qudt:FluidMechanicsQuantityKind
      rdf:type owl:Class ;
      rdfs:label "Fluid Dynamics Quantity Kind"^^xsd:string ;
      rdfs:subClassOf qudt:ContinuumMechanicsQuantityKind .

qudt:ForcePerElectricChargeUnit
      rdfs:subClassOf
              [ rdf:type owl:Restriction ;
                owl:hasValue <http://qudt.org/vocab/quantity#ForcePerElectricCharge> ;
                owl:onProperty qudt:quantityKind
              ] .

qudt:ForcePerLengthUnit
      rdfs:subClassOf
              [ rdf:type owl:Restriction ;
                owl:hasValue <http://qudt.org/vocab/quantity#ForcePerLength> ;
                owl:onProperty qudt:quantityKind
              ] .

qudt:ForceUnit
      rdfs:subClassOf
              [ rdf:type owl:Restriction ;
                owl:hasValue <http://qudt.org/vocab/quantity#Force> ;
                owl:onProperty qudt:quantityKind
              ] .

qudt:FrequencyUnit
      rdfs:subClassOf
              [ rdf:type owl:Restriction ;
                owl:hasValue <http://qudt.org/vocab/quantity#Frequency> ;
                owl:onProperty qudt:quantityKind
              ] .

qudt:GravitationalAttractionUnit
      rdfs:subClassOf
              [ rdf:type owl:Restriction ;
                owl:hasValue <http://qudt.org/vocab/quantity#GravitationalAttraction> ;
                owl:onProperty qudt:quantityKind
              ] .

qudt:HeartRateUnit
      rdfs:subClassOf
              [ rdf:type owl:Restriction ;
                owl:hasValue <http://qudt.org/vocab/quantity#HeartRate> ;
                owl:onProperty qudt:quantityKind
              ] .

qudt:HeatCapacityAndEntropyUnit
      rdfs:subClassOf
              [ rdf:type owl:Restriction ;
                owl:hasValue <http://qudt.org/vocab/quantity#HeatCapacity> ;
                owl:onProperty qudt:quantityKind
              ] .

qudt:HeatFlowRateUnit
      rdfs:subClassOf
              [ rdf:type owl:Restriction ;
                owl:hasValue <http://qudt.org/vocab/quantity#HeatFlowRate> ;
                owl:onProperty qudt:quantityKind
              ] ;
      rdfs:subClassOf
              [ rdf:type owl:Restriction ;
                owl:hasValue <http://qudt.org/vocab/quantity#Power> ;
                owl:onProperty qudt:quantityKind
              ] .

qudt:IlluminanceUnit
      rdfs:subClassOf
              [ rdf:type owl:Restriction ;
                owl:hasValue <http://qudt.org/vocab/quantity#Illuminance> ;
                owl:onProperty qudt:quantityKind
              ] .

qudt:InductanceUnit
      rdfs:subClassOf
              [ rdf:type owl:Restriction ;
                owl:hasValue <http://qudt.org/vocab/quantity#Inductance> ;
                owl:onProperty qudt:quantityKind
              ] .

qudt:InformationEntropyUnit
      rdfs:subClassOf
              [ rdf:type owl:Restriction ;
                owl:hasValue <http://qudt.org/vocab/quantity#InformationEntropy> ;
                owl:onProperty qudt:quantityKind
              ] .

qudt:InformationQuantityKind
      rdf:type owl:Class , qudt:QuantityKindCategory ;
      rdfs:label "Information"^^xsd:string ;
      rdfs:subClassOf qudt:QuantityKind ;
      skos:exactMatch <http://dbpedia.org/resource/Information> .

qudt:KinematicViscosityUnit
      rdfs:subClassOf
              [ rdf:type owl:Restriction ;
                owl:hasValue <http://qudt.org/vocab/quantity#KinematicViscosity> ;
                owl:onProperty qudt:quantityKind
              ] .

qudt:LengthTemperatureTimeUnit
      rdfs:subClassOf
              [ rdf:type owl:Restriction ;
                owl:hasValue <http://qudt.org/vocab/quantity#LengthTemperatureTime> ;
                owl:onProperty qudt:quantityKind
              ] .

qudt:LengthTemperatureUnit
      rdfs:subClassOf
              [ rdf:type owl:Restriction ;
                owl:hasValue <http://qudt.org/vocab/quantity#LengthTemperature> ;
                owl:onProperty qudt:quantityKind
              ] .

qudt:LengthUnit
      rdfs:subClassOf
              [ rdf:type owl:Restriction ;
                owl:hasValue <http://qudt.org/vocab/quantity#Length> ;
                owl:onProperty qudt:quantityKind
              ] .

qudt:LinearAccelerationUnit
      rdfs:subClassOf
              [ rdf:type owl:Restriction ;
                owl:hasValue <http://qudt.org/vocab/quantity#LinearAcceleration> ;
                owl:onProperty qudt:quantityKind
              ] .

qudt:LinearEnergyTransferUnit
      rdfs:subClassOf
              [ rdf:type owl:Restriction ;
                owl:hasValue <http://qudt.org/vocab/quantity#LinearEnergyTransfer> ;
                owl:onProperty qudt:quantityKind
              ] .

qudt:LinearMomentumUnit
      rdfs:subClassOf
              [ rdf:type owl:Restriction ;
                owl:hasValue <http://qudt.org/vocab/quantity#LinearMomentum> ;
                owl:onProperty qudt:quantityKind
              ] .

qudt:LinearThermalExpansionUnit
      rdfs:subClassOf
              [ rdf:type owl:Restriction ;
                owl:hasValue <http://qudt.org/vocab/quantity#LinearThermalExpansion> ;
                owl:onProperty qudt:quantityKind
              ] .

qudt:LinearVelocityUnit
      rdfs:subClassOf
              [ rdf:type owl:Restriction ;
                owl:hasValue <http://qudt.org/vocab/quantity#LinearVelocity> ;
                owl:onProperty qudt:quantityKind
              ] .

qudt:LuminanceUnit
      rdfs:subClassOf
              [ rdf:type owl:Restriction ;
                owl:hasValue <http://qudt.org/vocab/quantity#Luminance> ;
                owl:onProperty qudt:quantityKind
              ] .

qudt:LuminousFluxUnit
      rdfs:subClassOf
              [ rdf:type owl:Restriction ;
                owl:hasValue <http://qudt.org/vocab/quantity#LuminousFlux> ;
                owl:onProperty qudt:quantityKind
              ] .

qudt:LuminousIntensityUnit
      rdfs:subClassOf
              [ rdf:type owl:Restriction ;
                owl:hasValue <http://qudt.org/vocab/quantity#LuminousIntensity> ;
                owl:onProperty qudt:quantityKind
              ] .

qudt:MagneticFieldStrengthUnit
      rdfs:subClassOf
              [ rdf:type owl:Restriction ;
                owl:hasValue <http://qudt.org/vocab/quantity#AuxillaryMagneticField> ;
                owl:onProperty qudt:quantityKind
              ] .

qudt:MagneticFluxDensityUnit
      rdfs:subClassOf
              [ rdf:type owl:Restriction ;
                owl:hasValue <http://qudt.org/vocab/quantity#MagneticField> ;
                owl:onProperty qudt:quantityKind
              ] .

qudt:MagneticFluxUnit
      rdfs:subClassOf
              [ rdf:type owl:Restriction ;
                owl:hasValue <http://qudt.org/vocab/quantity#MagneticFlux> ;
                owl:onProperty qudt:quantityKind
              ] .

qudt:MagnetomotiveForceUnit
      rdfs:subClassOf
              [ rdf:type owl:Restriction ;
                owl:hasValue <http://qudt.org/vocab/quantity#MagnetomotiveForce> ;
                owl:onProperty qudt:quantityKind
              ] .

qudt:MassAmountOfSubstanceTemperatureUnit
      rdfs:subClassOf
              [ rdf:type owl:Restriction ;
                owl:hasValue <http://qudt.org/vocab/quantity#MassAmountOfSubstanceTemperature> ;
                owl:onProperty qudt:quantityKind
              ] .

qudt:MassAmountOfSubstanceUnit
      rdfs:subClassOf
              [ rdf:type owl:Restriction ;
                owl:hasValue <http://qudt.org/vocab/quantity#MassAmountOfSubstance> ;
                owl:onProperty qudt:quantityKind
              ] .

qudt:MassPerAreaUnit
      rdfs:subClassOf
              [ rdf:type owl:Restriction ;
                owl:hasValue <http://qudt.org/vocab/quantity#MassPerArea> ;
                owl:onProperty qudt:quantityKind
              ] .

qudt:MassPerLengthUnit
      rdfs:subClassOf
              [ rdf:type owl:Restriction ;
                owl:hasValue <http://qudt.org/vocab/quantity#MassPerLength> ;
                owl:onProperty qudt:quantityKind
              ] .

qudt:MassPerTimeUnit
      rdfs:subClassOf
              [ rdf:type owl:Restriction ;
                owl:hasValue <http://qudt.org/vocab/quantity#MassPerTime> ;
                owl:onProperty qudt:quantityKind
              ] .

qudt:MassPerVolumeUnit
      rdfs:subClassOf
              [ rdf:type owl:Restriction ;
                owl:hasValue <http://qudt.org/vocab/quantity#Density> ;
                owl:onProperty qudt:quantityKind
              ] .

qudt:MassTemperatureUnit
      rdfs:subClassOf
              [ rdf:type owl:Restriction ;
                owl:hasValue <http://qudt.org/vocab/quantity#MassTemperature> ;
                owl:onProperty qudt:quantityKind
              ] .

qudt:MassUnit
      rdfs:subClassOf
              [ rdf:type owl:Restriction ;
                owl:hasValue <http://qudt.org/vocab/quantity#Mass> ;
                owl:onProperty qudt:quantityKind
              ] .

qudt:MechanicsQuantityKind
      rdf:type owl:Class , qudt:QuantityKindCategory ;
      rdfs:label "Mechanics Quantity Kind"^^xsd:string ;
      rdfs:subClassOf qudt:QuantityKind ;
      skos:exactMatch <http://dbpedia.org/resource/Mechanics> .

qudt:MechanicsUnit
      rdfs:subClassOf
              [ rdf:type owl:Restriction ;
                owl:allValuesFrom qudt:MechanicsQuantityKind ;
                owl:onProperty qudt:quantityKind
              ] ;
      owl:equivalentClass
              [ rdf:type owl:Restriction ;
                owl:allValuesFrom qudt:MechanicsQuantityKind ;
                owl:onProperty qudt:quantityKind
              ] .

qudt:MicrobialFormationUnit
      rdfs:subClassOf
              [ rdf:type owl:Restriction ;
                owl:hasValue <http://qudt.org/vocab/quantity#MicrobialFormation> ;
                owl:onProperty qudt:quantityKind
              ] .

qudt:MolalConcentrationUnit
      rdfs:subClassOf
              [ rdf:type owl:Restriction ;
                owl:hasValue <http://qudt.org/vocab/quantity#AmountOfSubstancePerUnitMass> ;
                owl:onProperty qudt:quantityKind
              ] .

qudt:MolarConcentrationUnit
      rdfs:subClassOf
              [ rdf:type owl:Restriction ;
                owl:hasValue <http://qudt.org/vocab/quantity#AmountOfSubstancePerUnitVolume> ;
                owl:onProperty qudt:quantityKind
              ] .

qudt:MolarEnergyUnit
      rdfs:subClassOf
              [ rdf:type owl:Restriction ;
                owl:hasValue <http://qudt.org/vocab/quantity#MolarEnergy> ;
                owl:onProperty qudt:quantityKind
              ] .

qudt:MolarHeatCapacityUnit
      rdfs:subClassOf
              [ rdf:type owl:Restriction ;
                owl:hasValue <http://qudt.org/vocab/quantity#MolarHeatCapacity> ;
                owl:onProperty qudt:quantityKind
              ] .

qudt:OpticsQuantityKind
      rdf:type owl:Class , qudt:QuantityKindCategory ;
      rdfs:label "Optics"^^xsd:string ;
      rdfs:subClassOf qudt:QuantityKind ;
      skos:exactMatch <http://dbpedia.org/resource/Light> .

qudt:OpticsUnit
      rdfs:subClassOf
              [ rdf:type owl:Restriction ;
                owl:allValuesFrom qudt:OpticsQuantityKind ;
                owl:onProperty qudt:quantityKind
              ] ;
      owl:equivalentClass
              [ rdf:type owl:Restriction ;
                owl:allValuesFrom qudt:OpticsQuantityKind ;
                owl:onProperty qudt:quantityKind
              ] .

qudt:PermeabilityUnit
      rdfs:subClassOf
              [ rdf:type owl:Restriction ;
                owl:hasValue <http://qudt.org/vocab/quantity#Permeability> ;
                owl:onProperty qudt:quantityKind
              ] ;
      rdfs:subClassOf
              [ rdf:type owl:Restriction ;
                owl:hasValue <http://qudt.org/vocab/quantity#Permeability> ;
                owl:onProperty qudt:quantityKind
              ] .

qudt:PermittivityUnit
      rdfs:subClassOf
              [ rdf:type owl:Restriction ;
                owl:hasValue <http://qudt.org/vocab/quantity#Permittivity> ;
                owl:onProperty qudt:quantityKind
              ] .

qudt:PhotometryQuantityKind
      rdf:type owl:Class ;
      rdfs:label "Photometry quantity kind"^^xsd:string ;
      rdfs:subClassOf qudt:OpticsQuantityKind ;
      qudt:description "Photometry is the science of the measurement of light, in terms of its perceived brightness to the human eye. It is distinct from radiometry, which is the science of measurement of radiant energy (including light) in terms of absolute power."^^xsd:string .

qudt:PhysicalConstant
      rdf:type owl:Class ;
      rdfs:label "Physical Constant"^^xsd:string ;
      rdfs:subClassOf qudt:Quantity ;
      dc:description "A physical constant is a physical quantity that is generally believed to be both universal in nature and constant in time. It can be contrasted with a mathematical constant, which is a fixed numerical value but does not directly involve any physical measurement. There are many physical constants in science, some of the most widely recognized being the speed of light in vacuum c, Newton's gravitational constant G, Planck's constant h, the electric permittivity of free space ε0, and the elementary charge e. Physical constants can take many dimensional forms, or may be dimensionless depending on the system of quantities and units used."^^xsd:string ;
      skos:exactMatch <http://dbpedia.org/resource/Physical_constant> .

qudt:PowerPerAreaUnit
      rdfs:subClassOf
              [ rdf:type owl:Restriction ;
                owl:hasValue <http://qudt.org/vocab/quantity#PowerPerArea> ;
                owl:onProperty qudt:quantityKind
              ] .

qudt:PowerUnit
      rdfs:subClassOf
              [ rdf:type owl:Restriction ;
                owl:hasValue <http://qudt.org/vocab/quantity#Power> ;
                owl:onProperty qudt:quantityKind
              ] .

qudt:PrefixUnit
      rdfs:subClassOf
              [ rdf:type owl:Restriction ;
                owl:hasValue <http://qudt.org/vocab/quantity#Dimensionless> ;
                owl:onProperty qudt:quantityKind
              ] ;
      rdfs:subClassOf
              [ rdf:type owl:Restriction ;
                owl:hasValue <http://qudt.org/vocab/quantity#Dimensionless> ;
                owl:onProperty qudt:quantityKind
              ] .

qudt:PressureOrStressUnit
      rdfs:subClassOf
              [ rdf:type owl:Restriction ;
                owl:hasValue <http://qudt.org/vocab/quantity#Stress> ;
                owl:onProperty qudt:quantityKind
              ] .

qudt:ProportionalityConstant
      rdf:type owl:Class ;
      rdfs:label "Constant of Proportionality"^^xsd:string ;
      rdfs:subClassOf qudt:Quantity ;
      dc:description """Two quantities proportional if they vary in such a way that one of the quantities is a constant multiple of the other. The multiple is the constant of proportionality between the two quantities. Constants of proportionality may be dimensioned in some quantity systems and dimensionless in others. For example, in the SI system, the permittivity of a vacuum has the dimensions L^-3 M^-1 T^4 I^2 and is measured in Farads per Meter; in the CGS-EMU system it has dimensions L^-2T^2 and is measured in Abfarads per Centimeter; in the CGS-ESU system it is dimensionless.

Constants of proportionality are important in the definition of systems of natural units, where units are chosen in order to make certain constants of proportionality dimensionless and equal to 1."""^^xsd:string ;
      skos:closeMatch <http://dbpedia.org/resource/Proportionality_%28mathematics%29> .

qudt:Quantity
      rdf:type owl:Class ;
      rdfs:label "Quantity"^^xsd:string ;
      rdfs:subClassOf owl:Thing ;
      rdfs:subClassOf
              [ rdf:type owl:Restriction ;
                owl:minCardinality "1"^^xsd:int ;
                owl:onProperty qudt:quantityValue
              ] ;
      rdfs:subClassOf
              [ rdf:type owl:Restriction ;
                dc:description "a reference to the dimension that quantifies the property"^^xsd:string ;
                owl:allValuesFrom qudt:QuantityValue ;
                owl:onProperty qudt:quantityValue
              ] ;
      rdfs:subClassOf
              [ rdf:type owl:Restriction ;
                owl:allValuesFrom qudt:QuantityKind ;
                owl:onProperty qudt:quantityKind
              ] ;
      rdfs:subClassOf
              [ rdf:type owl:Restriction ;
                owl:maxCardinality "1"^^xsd:nonNegativeInteger ;
                owl:onProperty qudt:description
              ] ;
      dc:description "A quantity is the measurement of an observable property of a particular object, event, or physical system. A quantity is always associated with the context of measurement (i.e. the thing measured, the measured value, the accuracy of measurement, etc.) whereas the underlying quantity kind is independent of any particular measurement. Thus, length is a quantity kind while the height of a rocket is a specific quantity of length; its magnitude that may be expressed in meters, feet, inches, etc. Examples of physical quantities include physical constants, such as the speed of light in a vacuum, Planck's constant, the electric permittivity of free space, and the fine structure constant. Or, as stated at Wikipedia, in the language of measurement, quantities are quantifiable aspects of the world, such as time, distance, velocity, mass, momentum, energy, and weight, and units are used to describe their measure. Many of these quantities are related to each other by various physical laws, and as a result the units of some of the quantities can be expressed as products (or ratios) of powers of other units (e.g., momentum is mass times velocity and velocity is measured in distance divided by time). These relationships are discussed in dimensional analysis. Those that cannot be so expressed can be regarded as \"fundamental\" in this sense."^^xsd:string ;
      skos:exactMatch <http://dbpedia.org/resource/Quantity> .

qudt:QuantityKind
      rdf:type owl:Class ;
      rdfs:label "Quantity Kind"^^xsd:string ;
      rdfs:subClassOf qudt:EnumeratedValue ;
      rdfs:subClassOf
              [ rdf:type owl:Restriction ;
                owl:allValuesFrom qudt:QuantityKind ;
                owl:onProperty qudt:generalization
              ] ;
      rdfs:subClassOf
              [ rdf:type owl:Restriction ;
                owl:maxCardinality "1"^^xsd:int ;
                owl:onProperty qudt:generalization
              ] ;
      dc:description "A Quantity Kind is an aspect common to mutually comparable quantities."^^xsd:string ;
      skos:closeMatch <http://dbpedia.org/resource/Category:Physical_quantities> .

qudt:QuantityType
      rdf:type owl:Class ;
      rdfs:label "Quantity type"^^xsd:string ;
      rdfs:subClassOf qudt:Enumeration ;
      rdfs:subClassOf
              [ rdf:type owl:Restriction ;
                owl:cardinality "1"^^xsd:nonNegativeInteger ;
                owl:onProperty qudt:elementKind
              ] ;
      rdfs:subClassOf
              [ rdf:type owl:Restriction ;
                owl:allValuesFrom qudt:Unit ;
                owl:onProperty qudt:element
              ] ;
      rdfs:subClassOf
              [ rdf:type owl:Restriction ;
                owl:allValuesFrom qudt:QuantityKind ;
                owl:onProperty qudt:elementKind
              ] ;
      rdfs:subClassOf
              [ rdf:type owl:Restriction ;
                owl:allValuesFrom qudt:Unit ;
                owl:onProperty qudt:default
              ] ;
      dc:description "A quantity type is an enumeration of units that are measures of the same quantity kind."^^xsd:string .

qudt:QuantityValue
      rdf:type owl:Class ;
      rdfs:label "Quantity value"^^xsd:string ;
      rdfs:subClassOf owl:Thing ;
      rdfs:subClassOf
              [ rdf:type owl:Restriction ;
                owl:allValuesFrom qudt:Unit ;
                owl:onProperty qudt:unit
              ] ;
      rdfs:subClassOf
              [ rdf:type owl:Restriction ;
                owl:cardinality "1"^^xsd:int ;
                owl:onProperty qudt:numericValue
              ] ;
      rdfs:subClassOf
              [ rdf:type owl:Restriction ;
                owl:maxCardinality "1"^^xsd:int ;
                owl:onProperty qudt:valueQuantity
              ] ;
      rdfs:subClassOf
              [ rdf:type owl:Restriction ;
                owl:maxCardinality "1"^^xsd:int ;
                owl:onProperty qudt:relativeStandardUncertainty
              ] ;
      rdfs:subClassOf
              [ rdf:type owl:Restriction ;
                owl:maxCardinality "1"^^xsd:int ;
                owl:onProperty qudt:standardUncertainty
              ] ;
      rdfs:subClassOf
              [ rdf:type owl:Restriction ;
                owl:allValuesFrom xsd:double ;
                owl:onProperty qudt:standardUncertainty
              ] ;
      rdfs:subClassOf
              [ rdf:type owl:Restriction ;
                owl:allValuesFrom qudt:numericUnion ;
                owl:onProperty qudt:numericValue
              ] ;
      rdfs:subClassOf
              [ rdf:type owl:Restriction ;
                owl:allValuesFrom qudt:Quantity ;
                owl:onProperty qudt:valueQuantity
              ] ;
      rdfs:subClassOf
              [ rdf:type owl:Restriction ;
                owl:allValuesFrom xsd:double ;
                owl:onProperty qudt:relativeStandardUncertainty
              ] ;
      rdfs:subClassOf
              [ rdf:type owl:Restriction ;
                owl:cardinality "1"^^xsd:int ;
                owl:onProperty qudt:unit
              ] ;
      dc:description "A quantity value expresses the numerical value of a quantity with respect to a chosen unit of measure. For example, the value of Planck's constant in Joule-Seconds (J s) is approximately 6.62606896E-34, whereas the value in Erg-Seconds (erg s) is approximately 6.62606896E-27."^^xsd:string .

qudt:QuantumMechanicsQuantityKind
      rdf:type owl:Class ;
      rdfs:label "Quantum Mechanics Quantity Kind"^^xsd:string ;
      rdfs:subClassOf qudt:MechanicsQuantityKind .

qudt:RF-PowerUnit
      rdfs:subClassOf
              [ rdf:type owl:Restriction ;
                owl:hasValue <http://qudt.org/vocab/quantity#RF-Power> ;
                owl:onProperty qudt:quantityKind
              ] .

qudt:RadianceUnit
      rdfs:subClassOf
              [ rdf:type owl:Restriction ;
                owl:hasValue <http://qudt.org/vocab/quantity#PowerPerAreaAngle> ;
                owl:onProperty qudt:quantityKind
              ] .

qudt:RadiantIntensityUnit
      rdfs:subClassOf
              [ rdf:type owl:Restriction ;
                owl:hasValue <http://qudt.org/vocab/quantity#RadiantIntensity> ;
                owl:onProperty qudt:quantityKind
              ] .

qudt:RadiologyQuantityKind
      rdf:type owl:Class , qudt:QuantityKindCategory ;
      rdfs:label "Radiology"^^xsd:string ;
      rdfs:subClassOf qudt:QuantityKind ;
      skos:exactMatch <http://dbpedia.org/resource/Radiology> .

qudt:RadiologyUnit
      rdfs:subClassOf
              [ rdf:type owl:Restriction ;
                owl:allValuesFrom qudt:RadiologyQuantityKind ;
                owl:onProperty qudt:quantityKind
              ] ;
      owl:equivalentClass
              [ rdf:type owl:Restriction ;
                owl:allValuesFrom qudt:RadiologyQuantityKind ;
                owl:onProperty qudt:quantityKind
              ] .

qudt:RadiometryQuantityKind
      rdf:type owl:Class ;
      rdfs:label "Radiometry quantity kind"^^xsd:string ;
      rdfs:subClassOf qudt:OpticsQuantityKind ;
      qudt:description "Photometry is the field that studies the measurement of electromagnetic radiation, including visible light. Note that light is also measured using the techniques of photometry, which deal with brightness as perceived by the human eye, rather than absolute power."^^xsd:string .

qudt:ResistanceUnit
      rdfs:subClassOf
              [ rdf:type owl:Restriction ;
                owl:hasValue <http://qudt.org/vocab/quantity#Resistance> ;
                owl:onProperty qudt:quantityKind
              ] .

qudt:RespiratoryRateUnit
      rdfs:subClassOf
              [ rdf:type owl:Restriction ;
                owl:hasValue <http://qudt.org/vocab/quantity#RespiratoryRate> ;
                owl:onProperty qudt:quantityKind
              ] .

qudt:SerumOrPlasmaLevelUnit
      rdfs:subClassOf
              [ rdf:type owl:Restriction ;
                owl:hasValue <http://qudt.org/vocab/quantity#SerumOrPlasmaLevel> ;
                owl:onProperty qudt:quantityKind
              ] .

qudt:SignalDetectionThresholdUnit
      rdfs:subClassOf
              [ rdf:type owl:Restriction ;
                owl:hasValue <http://qudt.org/vocab/quantity#SignalDetectionThreshold> ;
                owl:onProperty qudt:quantityKind
              ] .

qudt:SolidAngleUnit
      rdfs:subClassOf
              [ rdf:type owl:Restriction ;
                owl:hasValue <http://qudt.org/vocab/quantity#SolidAngle> ;
                owl:onProperty qudt:quantityKind
              ] .

qudt:SolidMechanicsQuantityKind
      rdf:type owl:Class ;
      rdfs:label "Solid Mechanics Quantity Kind"^^xsd:string ;
      rdfs:subClassOf qudt:ContinuumMechanicsQuantityKind .

qudt:SpaceAndTimeQuantityKind
      rdf:type owl:Class , qudt:QuantityKindCategory ;
      rdfs:label "Space and Time" ;
      rdfs:subClassOf qudt:QuantityKind .

qudt:SpaceAndTimeUnit
      rdfs:subClassOf
              [ rdf:type owl:Restriction ;
                owl:allValuesFrom qudt:SpaceAndTimeQuantityKind ;
                owl:onProperty qudt:quantityKind
              ] ;
      owl:equivalentClass
              [ rdf:type owl:Restriction ;
                owl:allValuesFrom qudt:SpaceAndTimeQuantityKind ;
                owl:onProperty qudt:quantityKind
              ] .

qudt:SpecificEnergyUnit
      rdfs:subClassOf
              [ rdf:type owl:Restriction ;
                owl:hasValue <http://qudt.org/vocab/quantity#SpecificEnergy> ;
                owl:onProperty qudt:quantityKind
              ] .

qudt:SpecificHeatCapacityUnit
      rdfs:subClassOf
              [ rdf:type owl:Restriction ;
                owl:hasValue <http://qudt.org/vocab/quantity#SpecificHeatCapacity> ;
                owl:onProperty qudt:quantityKind
              ] .

qudt:SystemOfQuantities
      rdf:type owl:Class ;
      rdfs:label "System of Quantity Kinds"^^xsd:string ;
      rdfs:subClassOf owl:Thing ;
      rdfs:subClassOf
              [ rdf:type owl:Restriction ;
                owl:allValuesFrom qudt:Enumeration ;
                owl:onProperty qudt:baseDimensionEnumeration
              ] ;
      rdfs:subClassOf
              [ rdf:type owl:Restriction ;
                owl:allValuesFrom qudt:Dimension ;
                owl:onProperty qudt:systemDimension
              ] ;
      rdfs:subClassOf
              [ rdf:type owl:Restriction ;
                owl:minCardinality "1"^^xsd:int ;
                owl:onProperty qudt:systemQuantityKind
              ] ;
      rdfs:subClassOf
              [ rdf:type owl:Restriction ;
                owl:allValuesFrom qudt:QuantityKind ;
                owl:onProperty qudt:systemQuantityKind
              ] ;
      rdfs:subClassOf
              [ rdf:type owl:Restriction ;
                owl:maxCardinality "1"^^xsd:int ;
                owl:onProperty qudt:baseDimensionEnumeration
              ] ;
      rdfs:subClassOf
              [ rdf:type owl:Restriction ;
                owl:allValuesFrom qudt:SystemOfUnits ;
                owl:onProperty qudt:unitSystem
              ] ;
      dc:description """A system of quantity kinds is a set of one or more quantity kinds together with a set of zero or more algebraic equations that define relationships between quantity kinds in the set. In the physical sciences, the equations relating quantity kinds are typically physical laws and definitional relations, and constants of proportionality. Examples include Newton’s First Law of Motion, Coulomb’s Law, and the definition of velocity as the instantaneous change in position. 

In almost all cases, the system identifies a subset of base quantity kinds. The base set is chosen so that all other quantity kinds of interest can be derived from the base quantity kinds and the algebraic equations."""^^xsd:string .

qudt:TemperatureUnit
      rdfs:subClassOf
              [ rdf:type owl:Restriction ;
                owl:hasValue <http://qudt.org/vocab/quantity#ThermodynamicTemperature> ;
                owl:onProperty qudt:quantityKind
              ] .

qudt:ThermalConductivityUnit
      rdfs:subClassOf
              [ rdf:type owl:Restriction ;
                owl:hasValue <http://qudt.org/vocab/quantity#ThermalConductivity> ;
                owl:onProperty qudt:quantityKind
              ] .

qudt:ThermalDiffusivityUnit
      rdfs:subClassOf
              [ rdf:type owl:Restriction ;
                owl:hasValue <http://qudt.org/vocab/quantity#ThermalDiffusivity> ;
                owl:onProperty qudt:quantityKind
              ] .

qudt:ThermalEnergyLengthUnit
      rdfs:subClassOf
              [ rdf:type owl:Restriction ;
                owl:hasValue <http://qudt.org/vocab/quantity#ThermalEnergyLength> ;
                owl:onProperty qudt:quantityKind
              ] .

qudt:ThermalEnergyUnit
      rdfs:subClassOf
              [ rdf:type owl:Restriction ;
                owl:hasValue <http://qudt.org/vocab/quantity#ThermalEnergy> ;
                owl:onProperty qudt:quantityKind
              ] ;
      rdfs:subClassOf
              [ rdf:type owl:Restriction ;
                owl:hasValue <http://qudt.org/vocab/quantity#EnergyAndWork> ;
                owl:onProperty qudt:quantityKind
              ] .

qudt:ThermalInsulanceUnit
      rdfs:subClassOf
              [ rdf:type owl:Restriction ;
                owl:hasValue <http://qudt.org/vocab/quantity#ThermalInsulance> ;
                owl:onProperty qudt:quantityKind
              ] .

qudt:ThermalResistanceUnit
      rdfs:subClassOf
              [ rdf:type owl:Restriction ;
                owl:hasValue <http://qudt.org/vocab/quantity#ThermalResistance> ;
                owl:onProperty qudt:quantityKind
              ] .

qudt:ThermalResistivityUnit
      rdfs:subClassOf
              [ rdf:type owl:Restriction ;
                owl:hasValue <http://qudt.org/vocab/quantity#ThermalResistivity> ;
                owl:onProperty qudt:quantityKind
              ] .

qudt:ThermodynamicsQuantityKind
      rdf:type owl:Class , qudt:QuantityKindCategory ;
      rdfs:label "Thermodynamics"^^xsd:string ;
      rdfs:subClassOf qudt:QuantityKind ;
      skos:exactMatch <http://dbpedia.org/resource/Thermodynamics> .

qudt:ThermodynamicsUnit
      rdfs:subClassOf
              [ rdf:type owl:Restriction ;
                owl:allValuesFrom qudt:ThermodynamicsQuantityKind ;
                owl:onProperty qudt:quantityKind
              ] ;
      owl:equivalentClass
              [ rdf:type owl:Restriction ;
                owl:allValuesFrom qudt:ThermodynamicsQuantityKind ;
                owl:onProperty qudt:quantityKind
              ] .

qudt:ThrustToMassRatioUnit
      rdfs:subClassOf
              [ rdf:type owl:Restriction ;
                owl:hasValue <http://qudt.org/vocab/quantity#ThrustToMassRatio> ;
                owl:onProperty qudt:quantityKind
              ] .

qudt:TimeAreaUnit
      rdfs:subClassOf
              [ rdf:type owl:Restriction ;
                owl:hasValue <http://qudt.org/vocab/quantity#AreaTime> ;
                owl:onProperty qudt:quantityKind
              ] .

qudt:TimeSquaredUnit
      rdfs:subClassOf
              [ rdf:type owl:Restriction ;
                owl:hasValue <http://qudt.org/vocab/quantity#TimeSquared> ;
                owl:onProperty qudt:quantityKind
              ] .

qudt:TimeUnit
      rdfs:subClassOf
              [ rdf:type owl:Restriction ;
                owl:hasValue <http://qudt.org/vocab/quantity#Time> ;
                owl:onProperty qudt:quantityKind
              ] .

qudt:TurbidityUnit
      rdfs:subClassOf
              [ rdf:type owl:Restriction ;
                owl:hasValue <http://qudt.org/vocab/quantity#Turbidity> ;
                owl:onProperty qudt:quantityKind
              ] .

qudt:Unit
      rdfs:subClassOf
              [ rdf:type owl:Restriction ;
                owl:allValuesFrom qudt:QuantityKind ;
                owl:onProperty qudt:quantityKind
              ] .

qudt:VelocityUnit
      rdfs:subClassOf
              [ rdf:type owl:Restriction ;
                owl:hasValue <http://qudt.org/vocab/quantity#Velocity> ;
                owl:onProperty qudt:quantityKind
              ] .

qudt:VideoFrameRateUnit
      rdfs:subClassOf
              [ rdf:type owl:Restriction ;
                owl:hasValue <http://qudt.org/vocab/quantity#VideoFrameRate> ;
                owl:onProperty qudt:quantityKind
              ] .

qudt:VolumePerTimeUnit
      rdfs:subClassOf
              [ rdf:type owl:Restriction ;
                owl:hasValue <http://qudt.org/vocab/quantity#VolumePerUnitTime> ;
                owl:onProperty qudt:quantityKind
              ] .

qudt:VolumeThermalExpansionUnit
      rdfs:subClassOf
              [ rdf:type owl:Restriction ;
                owl:hasValue <http://qudt.org/vocab/quantity#VolumeThermalExpansion> ;
                owl:onProperty qudt:quantityKind
              ] .

qudt:VolumeUnit
      rdfs:subClassOf
              [ rdf:type owl:Restriction ;
                owl:hasValue <http://qudt.org/vocab/quantity#Volume> ;
                owl:onProperty qudt:quantityKind
              ] .