The NASA Quantity - Unit - Dimension Ontology

Absorbed Dose Rate Unit^c back to ToC or Class ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#AbsorbedDoseRateUnit

has super-classes

Radiology Unit^c

Absorbed Dose Unit^c back to ToC or Class ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#AbsorbedDoseUnit

has super-classes

Radiology Unit^c

Acceleration Unit^c back to ToC or Class ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#AccelerationUnit

has super-classes

Space And Time Unit^c

has sub-classes

Angular Acceleration Unit^c, Linear Acceleration Unit^c

Activity Unit^c back to ToC or Class ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#ActivityUnit

has super-classes

Radiology Unit^c

Amount Of Substance Temperature Unit^c back to ToC or Class ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#AmountOfSubstanceTemperatureUnit

has super-classes

Chemistry Unit^c

Amount Of Substance Unit^c back to ToC or Class ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#AmountOfSubstanceUnit

has super-classes

Chemistry Unit^c

Angle Unit^c back to ToC or Class ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#AngleUnit

has super-classes

Dimensionless Unit^c

Space And Time Unit^c

has sub-classes

Plane Angle Unit^c, Solid Angle Unit^c

Angular Acceleration Unit^c back to ToC or Class ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#AngularAccelerationUnit

has super-classes

Acceleration Unit^c

Angular Mass Unit^c back to ToC or Class ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#AngularMassUnit

has super-classes

Mechanics Unit^c

is also defined as

named individual

Angular Momentum Unit^c back to ToC or Class ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#AngularMomentumUnit

has super-classes

Momentum Unit^c

Angular Velocity Unit^c back to ToC or Class ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#AngularVelocityUnit

has super-classes

Velocity Unit^c

Area Angle Unit^c back to ToC or Class ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#AreaAngleUnit

has super-classes

Space And Time Unit^c

Area Temperature Unit^c back to ToC or Class ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#AreaTemperatureUnit

has super-classes

Thermodynamics Unit^c

Area Thermal Expansion Unit^c back to ToC or Class ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#AreaThermalExpansionUnit

has super-classes

Thermal Expansion Unit^c

is also defined as

named individual

Area Time Temperature Unit^c back to ToC or Class ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#AreaTimeTemperatureUnit

has super-classes

Thermodynamics Unit^c

Area Unit^c back to ToC or Class ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#AreaUnit

has super-classes

Space And Time Unit^c

Atomic Charge Unit^c back to ToC or Class ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#AtomicChargeUnit

has super-classes

Atomic Physics Unit^c

is also defined as

named individual

Atomic Physics^c back to ToC or Class ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#AtomicPhysicsQuantityKind

has super-classes

Quantity Kind^c

is also defined as

named individual

Atomic Physics Unit^c back to ToC or Class ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#AtomicPhysicsUnit

is equivalent to

quantity kind^op only Atomic Physics^c

has super-classes

Physical Unit^c

quantity kind^op only Atomic Physics^c

has sub-classes

Atomic Charge Unit^c, Linear Energy Transfer Unit^c

Base Unit^c back to ToC or Class ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#BaseUnit

has super-classes

Unit^c

has sub-classes

SI Base Unit^c

Bending Moment Or Torque Unit^c back to ToC or Class ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#BendingMomentOrTorqueUnit

has super-classes

Mechanics Unit^c

Binary Prefix Unit^c back to ToC or Class ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#BinaryPrefixUnit

has super-classes

Prefix Unit^c

Bio And Medical Unit^c back to ToC or Class ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#BioAndMedicalUnit

has super-classes

Science And Engineering Unit^c

has sub-classes

Heart Rate Unit^c, Microbial Formation Unit^c, Respiratory Rate Unit^c, Serum Or Plasma Level Unit^c, Turbidity Unit^c

Biology^c back to ToC or Class ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#BiologyQuantityKind

has super-classes

Quantity Kind^c

is also defined as

named individual

Capacitance Unit^c back to ToC or Class ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#CapacitanceUnit

has super-classes

Electricity And Magnetism Unit^c

is also defined as

named individual

Catalytic Activity Unit^c back to ToC or Class ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#CatalyticActivityUnit

has super-classes

Chemistry Unit^c

Chemistry^c back to ToC or Class ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#ChemistryQuantityKind

has super-classes

Quantity Kind^c

is also defined as

named individual

Chemistry Unit^c back to ToC or Class ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#ChemistryUnit

is equivalent to

quantity kind^op only Chemistry^c

has super-classes

Physical Unit^c

quantity kind^op only Chemistry^c

has sub-classes

Amount Of Substance Temperature Unit^c, Amount Of Substance Unit^c, Catalytic Activity Unit^c, Concentration Unit^c, Electrochemistry Unit^c, Energy and work per mass amount of substance^c, Inverse Amount Of Substance Unit^c, Mass Amount Of Substance Temperature Unit^c, Mass Amount Of Substance Unit^c, Molar Energy Unit^c

Coefficient Of Heat Transfer Unit^c back to ToC or Class ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#CoefficientOfHeatTransferUnit

has super-classes

Thermodynamics Unit^c

Communications^c back to ToC or Class ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#CommunicationsQuantityKind

has super-classes

Quantity Kind^c

is also defined as

named individual

Communications Unit^c back to ToC or Class ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#CommunicationsUnit

has super-classes

Science And Engineering Unit^c

has sub-classes

RF-Power Unit^c, Signal Detection Threshold Unit^c

Computing Unit^c back to ToC or Class ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#ComputingUnit

has super-classes

Science And Engineering Unit^c

has sub-classes

Data Rate Unit^c, Information Entropy Unit^c, Video Frame Rate Unit^c

Concentration Unit^c back to ToC or Class ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#ConcentrationUnit

has super-classes

Chemistry Unit^c

has sub-classes

Molal Concentration Unit^c, Molar Concentration Unit^c

Conductance Unit^c back to ToC or Class ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#ConductanceUnit

has super-classes

Electricity And Magnetism Unit^c

is also defined as

named individual

Constant of Proportionality^c back to ToC or Class ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#ProportionalityConstant

has super-classes

Quantity^c

Continuum Mechanics Quantity Kind^c back to ToC or Class ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#ContinuumMechanicsQuantityKind

has super-classes

Mechanics^c

has sub-classes

Fluid Dynamics Quantity Kind^c, Solid Mechanics Quantity Kind^c

Counting Unit^c back to ToC or Class ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#CountingUnit

has super-classes

Dimensionless Unit^c

Resource Unit^c

Currency Unit^c back to ToC or Class ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#CurrencyUnit

has super-classes

Financial Unit^c

currency exponent^dp exactly 1

Current Per Angle Unit^c back to ToC or Class ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#CurrentPerAngleUnit

has super-classes

Electricity And Magnetism Unit^c

Curvature Unit^c back to ToC or Class ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#CurvatureUnit

has super-classes

Space And Time Unit^c

is also defined as

named individual

Data Rate Unit^c back to ToC or Class ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#DataRateUnit

has super-classes

Computing Unit^c

Resource Unit^c

Decimal Prefix Unit^c back to ToC or Class ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#DecimalPrefixUnit

has super-classes

Prefix Unit^c

SI Unit^c

Derived Unit^c back to ToC or Class ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#DerivedUnit

has super-classes

Unit^c

has sub-classes

SI Derived Unit^c

Dimension^c back to ToC or Class ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#Dimension

has super-classes

Enumeration element^c

reference quantity^op min 1

reference quantity^op only Quantity Kind^c

dimension vector^op only Dimension Vector^c

dimension vector^op min 1

Dimension Vector^c back to ToC or Class ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#DimensionVector

has super-classes

Thing^c

vector magnitude^dp only float

basis element^op only Quantity Kind^c

basis element^op exactly 1

vector magnitude^dp exactly 1

Dimensionless Unit^c back to ToC or Class ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#DimensionlessUnit

has super-classes

Unit^c

has sub-classes

Angle Unit^c, Counting Unit^c, Prefix Unit^c

Dose Equivalent Unit^c back to ToC or Class ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#DoseEquivalentUnit

has super-classes

Radiology Unit^c

Dynamic Viscosity Unit^c back to ToC or Class ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#DynamicViscosityUnit

has super-classes

Mechanics Unit^c

Electric Charge Area Density Unit^c back to ToC or Class ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#ElectricChargeAreaDensityUnit

has super-classes

Electric Charge Density Unit^c

Electric Charge Density Unit^c back to ToC or Class ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#ElectricChargeDensityUnit

has super-classes

Electricity And Magnetism Unit^c

has sub-classes

Electric Charge Area Density Unit^c, Electric Charge Line Density Unit^c, Electric Charge Volume Density Unit^c, Electric Flux Density Unit^c

is also defined as

named individual

Electric Charge Line Density Unit^c back to ToC or Class ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#ElectricChargeLineDensityUnit

has super-classes

Electric Charge Density Unit^c

is also defined as

named individual

Electric Charge Per Amount Of Substance Unit^c back to ToC or Class ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#ElectricChargePerAmountOfSubstanceUnit

has super-classes

Electrochemistry Unit^c

Electric Charge Unit^c back to ToC or Class ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#ElectricChargeUnit

has super-classes

Electricity And Magnetism Unit^c

is also defined as

named individual

Electric Charge Volume Density Unit^c back to ToC or Class ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#ElectricChargeVolumeDensityUnit

has super-classes

Electric Charge Density Unit^c

is also defined as

named individual

Electric Current Density Unit^c back to ToC or Class ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#ElectricCurrentDensityUnit

has super-classes

Electricity And Magnetism Unit^c

is also defined as

named individual

Electric Current Unit^c back to ToC or Class ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#ElectricCurrentUnit

has super-classes

Electricity And Magnetism Unit^c

is also defined as

named individual

Electric Dipole Moment Unit^c back to ToC or Class ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#ElectricDipoleMomentUnit

has super-classes

Electricity And Magnetism Unit^c

is also defined as

named individual

Electric Field Strength Unit^c back to ToC or Class ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#ElectricFieldStrengthUnit

has super-classes

Electricity And Magnetism Unit^c

is also defined as

named individual

Electric Flux Density Unit^c back to ToC or Class ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#ElectricFluxDensityUnit

has super-classes

Electric Charge Density Unit^c

Electric Flux Unit^c back to ToC or Class ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#ElectricFluxUnit

has super-classes

Electricity And Magnetism Unit^c

Electricity and Magnetism^c back to ToC or Class ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#ElectricityAndMagnetismQuantityKind

has super-classes

Quantity Kind^c

has sub-classes

Optics^c

is also defined as

named individual

Electricity And Magnetism Unit^c back to ToC or Class ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#ElectricityAndMagnetismUnit

is equivalent to

quantity kind^op only Electricity and Magnetism^c

has super-classes

Physical Unit^c

quantity kind^op only Electricity and Magnetism^c

has sub-classes

Capacitance Unit^c, Conductance Unit^c, Current Per Angle Unit^c, Electric Charge Density Unit^c, Electric Charge Unit^c, Electric Current Density Unit^c, Electric Current Unit^c, Electric Dipole Moment Unit^c, Electric Field Strength Unit^c, Electric Flux Unit^c, Electrochemistry Unit^c, Energy per Electric Charge Unit^c, Energy per Electric Charge Unit^c, Force Per Electric Charge Unit^c, Inductance Unit^c, Light Unit^c, Magnetic Field Strength Unit^c, Magnetic Flux Density Unit^c, Magnetic Flux Unit^c, Magnetomotive Force Unit^c, Permeability Unit^c, Permittivity Unit^c, Resistance Unit^c

is also defined as

named individual

Electrochemistry Unit^c back to ToC or Class ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#ElectrochemistryUnit

has super-classes

Chemistry Unit^c

Electricity And Magnetism Unit^c

has sub-classes

Electric Charge Per Amount Of Substance Unit^c

Energy and work per mass amount of substance^c back to ToC or Class ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#EnergyAndWorkPerMassAmountOfSubstance

has super-classes

Chemistry Unit^c

Energy And Work Unit^c back to ToC or Class ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#EnergyAndWorkUnit

has super-classes

Mechanics Unit^c

Energy Density Unit^c back to ToC or Class ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#EnergyDensityUnit

has super-classes

Mechanics Unit^c

is also defined as

named individual

Energy Per Area Unit^c back to ToC or Class ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#EnergyPerAreaUnit

has super-classes

Mechanics Unit^c

is also defined as

named individual

Energy per Electric Charge Unit^c back to ToC or Class ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#EnergyPerElectricChargeUnit

has super-classes

Electricity And Magnetism Unit^c

is also defined as

named individual

Energy per Electric Charge Unit^c back to ToC or Class ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#PowerPerElectricChargeUnit

has super-classes

Electricity And Magnetism Unit^c

is also defined as

named individual

Enumeration^c back to ToC or Class ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#Enumeration

has super-classes

Thing^c

default^op max 1

element^op min 1

element^op only Enumeration element^c

default^op only Enumeration element^c

has sub-classes

Quantity type^c

Enumeration element^c back to ToC or Class ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#EnumerationElement

has super-classes

Thing^c

literal^dp exactly 1

order^dp max 1

has sub-classes

Dimension^c, Unit^c

Event Unit^c back to ToC or Class ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#EventUnit

has super-classes

Resource Unit^c

Exposure Unit^c back to ToC or Class ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#ExposureUnit

has super-classes

Radiology Unit^c

Financial^c back to ToC or Class ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#FinancialQuantityKind

has super-classes

Quantity Kind^c

is also defined as

named individual

Financial Unit^c back to ToC or Class ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#FinancialUnit

is equivalent to

quantity kind^op only Financial^c

has super-classes

Resource Unit^c

quantity kind^op only Financial^c

has sub-classes

Currency Unit^c, Rate Of Return Unit^c

is also defined as

named individual

Fluid Dynamics Quantity Kind^c back to ToC or Class ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#FluidMechanicsQuantityKind

has super-classes

Continuum Mechanics Quantity Kind^c

Force Per Electric Charge Unit^c back to ToC or Class ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#ForcePerElectricChargeUnit

has super-classes

Electricity And Magnetism Unit^c

Force Per Length Unit^c back to ToC or Class ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#ForcePerLengthUnit

has super-classes

Mechanics Unit^c

Force Unit^c back to ToC or Class ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#ForceUnit

has super-classes

Mechanics Unit^c

Frequency Unit^c back to ToC or Class ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#FrequencyUnit

has super-classes

Space And Time Unit^c

Gravitational Attraction Unit^c back to ToC or Class ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#GravitationalAttractionUnit

has super-classes

Mechanics Unit^c

Heart Rate Unit^c back to ToC or Class ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#HeartRateUnit

has super-classes

Bio And Medical Unit^c

Heat Capacity And Entropy Unit^c back to ToC or Class ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#HeatCapacityAndEntropyUnit

has super-classes

Thermodynamics Unit^c

Heat Flow Rate Unit^c back to ToC or Class ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#HeatFlowRateUnit

has super-classes

Thermodynamics Unit^c

Human Unit^c back to ToC or Class ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#HumanUnit

has super-classes

Resource Unit^c

is also defined as

named individual

Illuminance Unit^c back to ToC or Class ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#IlluminanceUnit

has super-classes

Photometry Unit^c

Inductance Unit^c back to ToC or Class ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#InductanceUnit

has super-classes

Electricity And Magnetism Unit^c

is also defined as

named individual

Information^c back to ToC or Class ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#InformationQuantityKind

has super-classes

Quantity Kind^c

is also defined as

named individual

Information Entropy Unit^c back to ToC or Class ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#InformationEntropyUnit

has super-classes

Computing Unit^c

Logarithmic Unit^c

Resource Unit^c

Inverse Amount Of Substance Unit^c back to ToC or Class ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#InverseAmountOfSubstanceUnit

has super-classes

Chemistry Unit^c

Kinematic Viscosity Unit^c back to ToC or Class ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#KinematicViscosityUnit

has super-classes

Mechanics Unit^c

Length Temperature Time Unit^c back to ToC or Class ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#LengthTemperatureTimeUnit

has super-classes

Thermodynamics Unit^c

Length Temperature Unit^c back to ToC or Class ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#LengthTemperatureUnit

has super-classes

Thermodynamics Unit^c

Length Unit^c back to ToC or Class ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#LengthUnit

has super-classes

Space And Time Unit^c

Light Unit^c back to ToC or Class ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#OpticsUnit

is equivalent to

quantity kind^op only Optics^c

has super-classes

Electricity And Magnetism Unit^c

quantity kind^op only Optics^c

has sub-classes

Photometry Unit^c, Radiometry Unit^c

Linear Acceleration Unit^c back to ToC or Class ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#LinearAccelerationUnit

has super-classes

Acceleration Unit^c

Linear Energy Transfer Unit^c back to ToC or Class ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#LinearEnergyTransferUnit

has super-classes

Atomic Physics Unit^c

Linear Momentum Unit^c back to ToC or Class ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#LinearMomentumUnit

has super-classes

Momentum Unit^c

Linear Thermal Expansion Unit^c back to ToC or Class ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#LinearThermalExpansionUnit

has super-classes

Thermal Expansion Unit^c

is also defined as

named individual

Linear Velocity Unit^c back to ToC or Class ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#LinearVelocityUnit

has super-classes

Velocity Unit^c

is also defined as

named individual

Logarithmic Unit^c back to ToC or Class ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#LogarithmicUnit

has super-classes

Physical Unit^c

has sub-classes

Information Entropy Unit^c

is also defined as

named individual

Luminance Unit^c back to ToC or Class ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#LuminanceUnit

has super-classes

Photometry Unit^c

Luminous Efficacy Unit^c back to ToC or Class ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#LuminousEfficacyUnit

has super-classes

Photometry Unit^c

Luminous Energy Unit^c back to ToC or Class ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#LuminousEnergyUnit

has super-classes

Photometry Unit^c

Luminous Flux Unit^c back to ToC or Class ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#LuminousFluxUnit

has super-classes

Photometry Unit^c

Luminous Intensity Unit^c back to ToC or Class ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#LuminousIntensityUnit

has super-classes

Photometry Unit^c

Magnetic Field Strength Unit^c back to ToC or Class ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#MagneticFieldStrengthUnit

has super-classes

Electricity And Magnetism Unit^c

is also defined as

named individual

Magnetic Flux Density Unit^c back to ToC or Class ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#MagneticFluxDensityUnit

has super-classes

Electricity And Magnetism Unit^c

Magnetic Flux Unit^c back to ToC or Class ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#MagneticFluxUnit

has super-classes

Electricity And Magnetism Unit^c

is also defined as

named individual

Magnetomotive Force Unit^c back to ToC or Class ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#MagnetomotiveForceUnit

has super-classes

Electricity And Magnetism Unit^c

is also defined as

named individual

Mass Amount Of Substance Temperature Unit^c back to ToC or Class ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#MassAmountOfSubstanceTemperatureUnit

has super-classes

Chemistry Unit^c

Mass Amount Of Substance Unit^c back to ToC or Class ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#MassAmountOfSubstanceUnit

has super-classes

Chemistry Unit^c

Mass Per Area Unit^c back to ToC or Class ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#MassPerAreaUnit

has super-classes

Mechanics Unit^c

Mass Per Length Unit^c back to ToC or Class ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#MassPerLengthUnit

has super-classes

Mechanics Unit^c

Mass Per Time Unit^c back to ToC or Class ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#MassPerTimeUnit

has super-classes

Mechanics Unit^c

Mass Per Volume Unit^c back to ToC or Class ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#MassPerVolumeUnit

has super-classes

Mechanics Unit^c

Mass Temperature Unit^c back to ToC or Class ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#MassTemperatureUnit

has super-classes

Thermodynamics Unit^c

Mass Unit^c back to ToC or Class ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#MassUnit

has super-classes

Mechanics Unit^c

Mechanics^c back to ToC or Class ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#MechanicsQuantityKind

has super-classes

Quantity Kind^c

has sub-classes

Continuum Mechanics Quantity Kind^c, Quantum Mechanics Quantity Kind^c

is also defined as

named individual

Mechanics Unit^c back to ToC or Class ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#MechanicsUnit

is equivalent to

quantity kind^op only Mechanics^c

has super-classes

Physical Unit^c

quantity kind^op only Mechanics^c

has sub-classes

Angular Mass Unit^c, Bending Moment Or Torque Unit^c, Dynamic Viscosity Unit^c, Energy And Work Unit^c, Energy Density Unit^c, Energy Per Area Unit^c, Force Per Length Unit^c, Force Unit^c, Gravitational Attraction Unit^c, Kinematic Viscosity Unit^c, Mass Per Area Unit^c, Mass Per Length Unit^c, Mass Per Time Unit^c, Mass Per Volume Unit^c, Mass Unit^c, Momentum Unit^c, Power Per Area Unit^c, Power Unit^c, Pressure Or Stress Unit^c, Pressure or stress rate^c, Specific Energy Unit^c, Thrust To Mass Ratio Unit^c, Volume per Time Squared Unit^c, Volume per mass unit^c

Microbial Formation Unit^c back to ToC or Class ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#MicrobialFormationUnit

has super-classes

Bio And Medical Unit^c

Molal Concentration Unit^c back to ToC or Class ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#MolalConcentrationUnit

has super-classes

Concentration Unit^c

Molar Concentration Unit^c back to ToC or Class ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#MolarConcentrationUnit

has super-classes

Concentration Unit^c

Molar Energy Unit^c back to ToC or Class ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#MolarEnergyUnit

has super-classes

Chemistry Unit^c

Molar Heat Capacity Unit^c back to ToC or Class ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#MolarHeatCapacityUnit

has super-classes

Thermodynamics Unit^c

Momentum Unit^c back to ToC or Class ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#MomentumUnit

has super-classes

Mechanics Unit^c

has sub-classes

Angular Momentum Unit^c, Linear Momentum Unit^c

Non SI Unit^c back to ToC or Class ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#NonSIUnit

has super-classes

Physical Unit^c

has sub-classes

Not Used With SI Unit^c, Used With SI Unit^c

is disjoint with

SI Unit^c

is also defined as

named individual

Not Used With SI Unit^c back to ToC or Class ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#NotUsedWithSIUnit

has super-classes

Non SI Unit^c

is disjoint with

Used With SI Unit^c

is also defined as

named individual

Optics^c back to ToC or Class ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#OpticsQuantityKind

has super-classes

Electricity and Magnetism^c

has sub-classes

Photometry quantity kind^c, Radiometry quantity kind^c

is also defined as

named individual

Permeability Unit^c back to ToC or Class ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#PermeabilityUnit

has super-classes

Electricity And Magnetism Unit^c

Permittivity Unit^c back to ToC or Class ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#PermittivityUnit

has super-classes

Electricity And Magnetism Unit^c

Photometry quantity kind^c back to ToC or Class ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#PhotometryQuantityKind

has super-classes

Optics^c

is also defined as

named individual

Photometry Unit^c back to ToC or Class ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#PhotometryUnit

has super-classes

Light Unit^c

has sub-classes

Illuminance Unit^c, Luminance Unit^c, Luminous Efficacy Unit^c, Luminous Energy Unit^c, Luminous Flux Unit^c, Luminous Intensity Unit^c

Physical Constant^c back to ToC or Class ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#PhysicalConstant

has super-classes

Quantity^c

Physical Unit^c back to ToC or Class ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#PhysicalUnit

has super-classes

Science And Engineering Unit^c

has sub-classes

Atomic Physics Unit^c, Chemistry Unit^c, Electricity And Magnetism Unit^c, Logarithmic Unit^c, Mechanics Unit^c, Non SI Unit^c, Radiology Unit^c, SI Unit^c, Space And Time Unit^c, Thermodynamics Unit^c

Plane Angle Unit^c back to ToC or Class ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#PlaneAngleUnit

has super-classes

Angle Unit^c

Power Per Area Unit^c back to ToC or Class ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#PowerPerAreaUnit

has super-classes

Mechanics Unit^c

Power Unit^c back to ToC or Class ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#PowerUnit

has super-classes

Mechanics Unit^c

Prefix Unit^c back to ToC or Class ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#PrefixUnit

has super-classes

Dimensionless Unit^c

has sub-classes

Binary Prefix Unit^c, Decimal Prefix Unit^c

Pressure or stress rate^c back to ToC or Class ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#PressureOrStressRateUnit

has super-classes

Mechanics Unit^c

Pressure Or Stress Unit^c back to ToC or Class ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#PressureOrStressUnit

has super-classes

Mechanics Unit^c

Quantity^c back to ToC or Class ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#Quantity

has super-classes

Thing^c

quantity kind^op only Quantity Kind^c

quantity value^op min 1

quantity value^op only Quantity value^c

has sub-classes

Constant of Proportionality^c, Physical Constant^c

is in range of

quantity^op

Quantity Kind^c back to ToC or Class ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#QuantityKind

has super-classes

Thing^c

generalization^op max 1

generalization^op only Quantity Kind^c

has sub-classes

Atomic Physics^c, Biology^c, Chemistry^c, Communications^c, Electricity and Magnetism^c, Financial^c, Information^c, Mechanics^c, Radiology^c, Space and Time^c, Thermodynamics^c

Quantity Kind Category^c back to ToC or Class ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#QuantityKindCategory

has super-classes

class^c

has members

Atomic Physicsⁿⁱ, Biologyⁿⁱ, Chemistryⁿⁱ, Communicationsⁿⁱ, Electricity and Magnetismⁿⁱ, Financialⁿⁱ, Informationⁿⁱ, Mechanicsⁿⁱ, Opticsⁿⁱ, Radiologyⁿⁱ, Space and Timeⁿⁱ, Thermodynamicsⁿⁱ

Quantity type^c back to ToC or Class ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#QuantityType

has super-classes

Enumeration^c

Thing^c

element kind^op only Quantity Kind^c

element^op only Unit^c

element kind^op exactly 1

default^op only Unit^c

Quantity value^c back to ToC or Class ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#QuantityValue

has super-classes

Thing^c

unit^op only Unit^c

value for quantity^op max 1

standard uncertainty^dp max 1

numeric value^dp only double

value for quantity^op only Quantity^c

relative standard uncertainty^dp max 1

numeric value^dp exactly 1

relative standard uncertainty^dp only double

unit^op exactly 1

standard uncertainty^dp only double

is in range of

value^op

Quantum Mechanics Quantity Kind^c back to ToC or Class ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#QuantumMechanicsQuantityKind

has super-classes

Mechanics^c

Radiance Unit^c back to ToC or Class ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#RadianceUnit

has super-classes

Radiometry Unit^c

Radiant Intensity Unit^c back to ToC or Class ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#RadiantIntensityUnit

has super-classes

Radiometry Unit^c

Radiology^c back to ToC or Class ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#RadiologyQuantityKind

has super-classes

Quantity Kind^c

is also defined as

named individual

Radiology Unit^c back to ToC or Class ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#RadiologyUnit

is equivalent to

quantity kind^op only Radiology^c

has super-classes

Physical Unit^c

quantity kind^op only Radiology^c

has sub-classes

Absorbed Dose Rate Unit^c, Absorbed Dose Unit^c, Activity Unit^c, Dose Equivalent Unit^c, Exposure Unit^c

Radiometry quantity kind^c back to ToC or Class ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#RadiometryQuantityKind

has super-classes

Optics^c

is also defined as

named individual

Radiometry Unit^c back to ToC or Class ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#RadiometryUnit

has super-classes

Light Unit^c

has sub-classes

Radiance Unit^c, Radiant Intensity Unit^c

Rate Of Return Unit^c back to ToC or Class ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#RateOfReturnUnit

has super-classes

Financial Unit^c

Resistance Unit^c back to ToC or Class ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#ResistanceUnit

has super-classes

Electricity And Magnetism Unit^c

is also defined as

named individual

Resource Unit^c back to ToC or Class ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#ResourceUnit

has super-classes

Unit^c

has sub-classes

Counting Unit^c, Data Rate Unit^c, Event Unit^c, Financial Unit^c, Human Unit^c, Information Entropy Unit^c

Respiratory Rate Unit^c back to ToC or Class ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#RespiratoryRateUnit

has super-classes

Bio And Medical Unit^c

RF-Power Unit^c back to ToC or Class ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#RF-PowerUnit

has super-classes

Communications Unit^c

Science And Engineering Unit^c back to ToC or Class ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#ScienceAndEngineeringUnit

has super-classes

Unit^c

has sub-classes

Bio And Medical Unit^c, Communications Unit^c, Computing Unit^c, Physical Unit^c

Serum Or Plasma Level Unit^c back to ToC or Class ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#SerumOrPlasmaLevelUnit

has super-classes

Bio And Medical Unit^c

SI Base Unit^c back to ToC or Class ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#SIBaseUnit

has super-classes

Base Unit^c

SI Unit^c

is disjoint with

SI Derived Unit^c

is also defined as

named individual

SI Derived Unit^c back to ToC or Class ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#SIDerivedUnit

has super-classes

Derived Unit^c

SI Unit^c

is disjoint with

SI Base Unit^c

SI Unit^c back to ToC or Class ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#SIUnit

has super-classes

Physical Unit^c

has sub-classes

Decimal Prefix Unit^c, SI Base Unit^c, SI Derived Unit^c

is disjoint with

Non SI Unit^c

is also defined as

named individual

Signal Detection Threshold Unit^c back to ToC or Class ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#SignalDetectionThresholdUnit

has super-classes

Communications Unit^c

is also defined as

named individual

Solid Angle Unit^c back to ToC or Class ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#SolidAngleUnit

has super-classes

Angle Unit^c

is also defined as

named individual

Solid Mechanics Quantity Kind^c back to ToC or Class ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#SolidMechanicsQuantityKind

has super-classes

Continuum Mechanics Quantity Kind^c

Space and Time^c back to ToC or Class ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#SpaceAndTimeQuantityKind

has super-classes

Quantity Kind^c

is also defined as

named individual

Space And Time Unit^c back to ToC or Class ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#SpaceAndTimeUnit

is equivalent to

quantity kind^op only Space and Time^c

has super-classes

Physical Unit^c

quantity kind^op only Space and Time^c

has sub-classes

Acceleration Unit^c, Angle Unit^c, Area Angle Unit^c, Area Unit^c, Curvature Unit^c, Frequency Unit^c, Length Unit^c, Time Area Unit^c, Time Squared Unit^c, Time Unit^c, Velocity Unit^c, Volume Per Time Unit^c, Volume Unit^c

Specific Energy Unit^c back to ToC or Class ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#SpecificEnergyUnit

has super-classes

Mechanics Unit^c

is also defined as

named individual

Specific Heat Capacity Unit^c back to ToC or Class ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#SpecificHeatCapacityUnit

has super-classes

Thermodynamics Unit^c

Specific Heat Pressure Unit^c back to ToC or Class ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#SpecificHeatPressureUnit

has super-classes

Thermodynamics Unit^c

is also defined as

named individual

Specific Heat Volume Unit^c back to ToC or Class ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#SpecificHeatVolumeUnit

has super-classes

Thermodynamics Unit^c

is also defined as

named individual

System of natural units^c back to ToC or Class ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#SystemOfNaturalUnits

has super-classes

System of Units^c

System of Quantity Kinds^c back to ToC or Class ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#SystemOfQuantities

has super-classes

Thing^c

unit system^op only System of Units^c

system quantity kind^op min 1

base dimension enumeration^op only Enumeration^c

system dimension^op only Dimension^c

base dimension enumeration^op max 1

system quantity kind^op only Quantity Kind^c

System of Units^c back to ToC or Class ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#SystemOfUnits

has super-classes

Thing^c

system unit^op min 1

system unit^op only Unit^c

has sub-classes

System of natural units^c

Temperature per time unit^c back to ToC or Class ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#TemperaturePerTimeUnit

has super-classes

Thermodynamics Unit^c

Temperature Unit^c back to ToC or Class ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#TemperatureUnit

has super-classes

Thermodynamics Unit^c

Thermal Conductivity Unit^c back to ToC or Class ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#ThermalConductivityUnit

has super-classes

Thermodynamics Unit^c

Thermal Diffusivity Unit^c back to ToC or Class ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#ThermalDiffusivityUnit

has super-classes

Thermodynamics Unit^c

Thermal Energy Length Unit^c back to ToC or Class ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#ThermalEnergyLengthUnit

has super-classes

Thermodynamics Unit^c

Thermal Energy Unit^c back to ToC or Class ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#ThermalEnergyUnit

has super-classes

Thermodynamics Unit^c

Thermal Expansion Unit^c back to ToC or Class ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#ThermalExpansionUnit

has super-classes

Thermodynamics Unit^c

has sub-classes

Area Thermal Expansion Unit^c, Linear Thermal Expansion Unit^c, Volume Thermal Expansion Unit^c

is also defined as

named individual

Thermal Insulance Unit^c back to ToC or Class ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#ThermalInsulanceUnit

has super-classes

Thermodynamics Unit^c

Thermal Resistance Unit^c back to ToC or Class ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#ThermalResistanceUnit

has super-classes

Thermodynamics Unit^c

Thermal Resistivity Unit^c back to ToC or Class ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#ThermalResistivityUnit

has super-classes

Thermodynamics Unit^c

Thermodynamics^c back to ToC or Class ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#ThermodynamicsQuantityKind

has super-classes

Quantity Kind^c

is also defined as

named individual

Thermodynamics Unit^c back to ToC or Class ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#ThermodynamicsUnit

is equivalent to

quantity kind^op only Thermodynamics^c

has super-classes

Physical Unit^c

quantity kind^op only Thermodynamics^c

has sub-classes

Area Temperature Unit^c, Area Time Temperature Unit^c, Coefficient Of Heat Transfer Unit^c, Heat Capacity And Entropy Unit^c, Heat Flow Rate Unit^c, Length Temperature Time Unit^c, Length Temperature Unit^c, Mass Temperature Unit^c, Molar Heat Capacity Unit^c, Specific Heat Capacity Unit^c, Specific Heat Pressure Unit^c, Specific Heat Volume Unit^c, Temperature Unit^c, Temperature per time unit^c, Thermal Conductivity Unit^c, Thermal Diffusivity Unit^c, Thermal Energy Length Unit^c, Thermal Energy Unit^c, Thermal Expansion Unit^c, Thermal Insulance Unit^c, Thermal Resistance Unit^c, Thermal Resistivity Unit^c

is also defined as

named individual

Thing^c back to ToC or Class ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#Thing

has super-classes

thing^c

abbreviation^dp max 1

symbol^dp max 1

description^dp max 1

has sub-classes

Dimension Vector^c, Enumeration^c, Enumeration element^c, Quantity^c, Quantity Kind^c, Quantity type^c, Quantity value^c, System of Quantity Kinds^c, System of Units^c, Unit^c

Thrust To Mass Ratio Unit^c back to ToC or Class ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#ThrustToMassRatioUnit

has super-classes

Mechanics Unit^c

Time Area Unit^c back to ToC or Class ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#TimeAreaUnit

has super-classes

Space And Time Unit^c

Time Squared Unit^c back to ToC or Class ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#TimeSquaredUnit

has super-classes

Space And Time Unit^c

Time Unit^c back to ToC or Class ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#TimeUnit

has super-classes

Space And Time Unit^c

is also defined as

named individual

Turbidity Unit^c back to ToC or Class ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#TurbidityUnit

has super-classes

Bio And Medical Unit^c

is also defined as

named individual

Unit^c back to ToC or Class ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#Unit

has super-classes

Enumeration element^c

Thing^c

conversion multiplier^dp max 1

conversion offset^dp max 1

quantity kind^op only Quantity Kind^c

has sub-classes

Base Unit^c, Derived Unit^c, Dimensionless Unit^c, Resource Unit^c, Science And Engineering Unit^c

Used With SI Unit^c back to ToC or Class ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#UsedWithSIUnit

has super-classes

Non SI Unit^c

is disjoint with

Not Used With SI Unit^c

is also defined as

named individual

Velocity Unit^c back to ToC or Class ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#VelocityUnit

has super-classes

Space And Time Unit^c

has sub-classes

Angular Velocity Unit^c, Linear Velocity Unit^c

Video Frame Rate Unit^c back to ToC or Class ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#VideoFrameRateUnit

has super-classes

Computing Unit^c

Volume per mass unit^c back to ToC or Class ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#VolumePerMassUnit

has super-classes

Mechanics Unit^c

Volume per Time Squared Unit^c back to ToC or Class ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#VolumePerTimeSquaredUnit

has super-classes

Mechanics Unit^c

Volume Per Time Unit^c back to ToC or Class ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#VolumePerTimeUnit

has super-classes

Space And Time Unit^c

is also defined as

named individual

Volume Thermal Expansion Unit^c back to ToC or Class ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#VolumeThermalExpansionUnit

has super-classes

Thermal Expansion Unit^c

is also defined as

named individual

Volume Unit^c back to ToC or Class ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#VolumeUnit

has super-classes

Space And Time Unit^c

allowed unit^op back to ToC or Object Property ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#systemAllowedUnit

allowed unit of system^op back to ToC or Object Property ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#allowedUnitOfSystem

base dimension enumeration^op back to ToC or Object Property ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#baseDimensionEnumeration

base quantity kind of system^op back to ToC or Object Property ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#baseQuantityKindOfSystem

base unit^op back to ToC or Object Property ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#systemBaseUnit

base unit of system^op back to ToC or Object Property ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#baseUnitOfSystem

basis element^op back to ToC or Object Property ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#basisElement

coherent derived unit^op back to ToC or Object Property ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#systemCoherentDerivedUnit

coherent unit^op back to ToC or Object Property ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#systemCoherentUnit

coherent unit of system^op back to ToC or Object Property ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#coherentUnitOfSystem

coherent unit system^op back to ToC or Object Property ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#coherentUnitSystem

default^op back to ToC or Object Property ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#default

defined unit^op back to ToC or Object Property ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#systemDefinedUnit

defined unit of system^op back to ToC or Object Property ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#definedUnitOfSystem

derived quantity kind of system^op back to ToC or Object Property ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#derivedQuantityKindOfSystem

derived unit^op back to ToC or Object Property ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#systemDerivedUnit

derived unit of system^op back to ToC or Object Property ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#coherentDerivedUnitOfSystem

derived unit of system^op back to ToC or Object Property ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#derivedUnitOfSystem

dimension inverse^op back to ToC or Object Property ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#dimensionInverse

dimension vector^op back to ToC or Object Property ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#dimensionVector

element^op back to ToC or Object Property ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#element

element kind^op back to ToC or Object Property ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#elementKind

exact match^op back to ToC or Object Property ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#exactMatch

generalization^op back to ToC or Object Property ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#generalization

prefix unit^op back to ToC or Object Property ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#systemPrefixUnit

prefix unit of system^op back to ToC or Object Property ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#prefixUnitOfSystem

quantity^op back to ToC or Object Property ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#quantity

quantity kind of system^op back to ToC or Object Property ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#quantityKindOfSystem

quantity value^op back to ToC or Object Property ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#quantityValue

reference quantity^op back to ToC or Object Property ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#referenceQuantity

reference thing^op back to ToC or Object Property ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#referenceThing

reference unit^op back to ToC or Object Property ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#referenceUnit

specialization^op back to ToC or Object Property ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#specialization

system base quantity kind^op back to ToC or Object Property ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#systemBaseQuantityKind

system derived quantity kind^op back to ToC or Object Property ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#systemDerivedQuantityKind

system dimension^op back to ToC or Object Property ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#systemDimension

system quantity kind^op back to ToC or Object Property ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#systemQuantityKind

system unit^op back to ToC or Object Property ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#systemUnit

unit^op back to ToC or Object Property ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#unit

unit for^op back to ToC or Object Property ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#unitFor

unit of system^op back to ToC or Object Property ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#unitOfSystem

unit system^op back to ToC or Object Property ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#unitSystem

value^op back to ToC or Object Property ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#value

value for quantity^op back to ToC or Object Property ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#valueQuantity

abbreviation^dp back to ToC or Data Property ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#abbreviation

code^dp back to ToC or Data Property ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#code

conversion coefficient^dp back to ToC or Data Property ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#conversionCoefficient

conversion multiplier^dp back to ToC or Data Property ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#conversionMultiplier

conversion offset^dp back to ToC or Data Property ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#conversionOffset

currency exponent^dp back to ToC or Data Property ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#currencyExponent

description^dp back to ToC or Data Property ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#description

literal^dp back to ToC or Data Property ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#literal

negative delta limit^dp back to ToC or Data Property ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#negativeDeltaLimit

numeric value^dp back to ToC or Data Property ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#numericValue

order^dp back to ToC or Data Property ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#order

Positive delta limit^dp back to ToC or Data Property ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#positiveDeltaLimit

relative standard uncertainty^dp back to ToC or Data Property ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#relativeStandardUncertainty

standard uncertainty^dp back to ToC or Data Property ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#standardUncertainty

symbol^dp back to ToC or Data Property ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#symbol

vector magnitude^dp back to ToC or Data Property ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#vectorMagnitude

Angular Mass Unitⁿⁱ back to ToC or Named Individual ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#AngularMassUnit

has facts

description^dp "The units of angular mass have dimensions of mass * area. They are used to measure the moment of inertia."^^string

is also defined as

class

Area Thermal Expansion Unitⁿⁱ back to ToC or Named Individual ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#AreaThermalExpansionUnit

has facts

description^dp "When the temperature of a substance changes, the energy that is stored in the intermolecular bonds between atoms changes. When the stored energy increases, so does the length of the molecular bonds. As a result, solids typically expand in response to heating and contract on cooling; this dimensional response to temperature change is expressed by its coefficient of thermal expansion. Different coefficients of thermal expansion can be defined for a substance depending on whether the expansion is measured by: * linear thermal expansion * area thermal expansion * volumetric thermal expansion These characteristics are closely related. The volumetric thermal expansion coefficient can be defined for both liquids and solids. The linear thermal expansion can only be defined for solids, and is common in engineering applications. Some substances expand when cooled, such as freezing water, so they have negative thermal expansion coefficients. For exactly isotropic materials, the area thermal expansion coefficient is very closely approximated as twice the linear coefficient."^^string

is also defined as

class

Atomic Charge Unitⁿⁱ back to ToC or Named Individual ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#AtomicChargeUnit

has facts

description^dp "The electric charge of an ion, equal to the number of electrons the atom has gained or lost in its ionization multiplied by the charge on one electron. This class contains the following instance(s): "atomic number"."^^string

is also defined as

class

Atomic Physicsⁿⁱ back to ToC or Named Individual ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#AtomicPhysicsQuantityKind

belongs to

Quantity Kind Category^c

is also defined as

class

Biologyⁿⁱ back to ToC or Named Individual ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#BiologyQuantityKind

belongs to

Quantity Kind Category^c

is also defined as

class

Capacitance Unitⁿⁱ back to ToC or Named Individual ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#CapacitanceUnit

has facts

description^dp "Capacitance is a measure of the amount of electric charge stored (or separated) for a given electric potential. This class contains the following instance(s): "Abfarad", "Farad", "MicroFarad", "NanoFarad", "PicoFarad", "Statfarad"."^^string

is also defined as

class

Chemistryⁿⁱ back to ToC or Named Individual ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#ChemistryQuantityKind

belongs to

Quantity Kind Category^c

is also defined as

class

Communicationsⁿⁱ back to ToC or Named Individual ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#CommunicationsQuantityKind

belongs to

Quantity Kind Category^c

is also defined as

class

Conductance Unitⁿⁱ back to ToC or Named Individual ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#ConductanceUnit

has facts

description^dp "Electrical conductance is the inverse of electrical resistance. It measures the ease with which electricity flows along a path through an electrical element. This class contains the following instance(s): "Abmho", "Mho", "Siemens", "Statmho"."^^string

is also defined as

class

Curvature Unitⁿⁱ back to ToC or Named Individual ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#CurvatureUnit

has facts

description^dp "The canonicall example of extrinsic curvature is that of a circle, which has curvature equal to the inverse of its radius everywhere. Smaller circles bend more sharply, and hence have higher curvature. The curvature of a smooth curve is defined as the curvature of its osculating circle at each point. The osculating circle of a sufficiently smooth plane curve at a given point on the curve is the circle whose center lies on the inner normal line and whose curvature is the same as that of the given curve at that point. This circle is tangent to the curve at the given point. That is, given a point P on a smooth curve C, the curvature of C at P is defined to be 1/R where R is the radius of the osculating circle of C at P. The magnitude of curvature at points on physical curves can be measured in diopters (also spelled dioptre) — this is the convention in optics. [Wikipedia]"^^string

is also defined as

class

Electric Charge Density Unitⁿⁱ back to ToC or Named Individual ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#ElectricChargeDensityUnit

has facts

description^dp "The linear, surface, or volume charge density is the amount of electric charge in a line, surface, or volume. It is measured in coulombs per metre (C/m), square metre (C/m^2), or cubic metre (C/m^3), respectively. Since there are positive as well as negative charges, the charge density can take on negative values. [Wikipedia]"^^string

is also defined as

class

Electric Charge Line Density Unitⁿⁱ back to ToC or Named Individual ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#ElectricChargeLineDensityUnit

has facts

description^dp "The linear charge density is the amount of electric charge in a line. It is measured in coulombs per metre (C/m). Since there are positive as well as negative charges, the charge density can take on negative values. [Wikipedia]"^^string

is also defined as

class

Electric Charge Unitⁿⁱ back to ToC or Named Individual ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#ElectricChargeUnit

has facts

description^dp "Electric charge is a fundamental conserved property of some subatomic particles, which determines their electromagnetic interaction. Electrically charged matter is influenced by, and produces, electromagnetic fields. The interaction between a moving charge and an electromagnetic field is the source of the electromagnetic force, which is one of the four fundamental forces."^^string

is also defined as

class

Electric Charge Volume Density Unitⁿⁱ back to ToC or Named Individual ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#ElectricChargeVolumeDensityUnit

has facts

description^dp "The volume charge density is the amount of electric charge in a volume. It is measured in coulombs per cubic metre (C/m^3). Since there are positive as well as negative charges, the charge density can take on negative values. [Wikipedia]"^^string

is also defined as

class

Electric Current Density Unitⁿⁱ back to ToC or Named Individual ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#ElectricCurrentDensityUnit

has facts

description^dp "Electric current density is a measure of the density of flow of a conserved charge. Usually the charge is the electric charge, in which case the associated current density is the electric current per unit area of cross section, but the term current density can also be applied to other conserved quantities. It is defined as a vector whose magnitude is the current per cross-sectional area. [Wikipedia] In SI units, the electric current density is measured in amperes per square metre. This class contains the following instance(s): "Ampere per square meter"."^^string

is also defined as

class

Electric Current Unitⁿⁱ back to ToC or Named Individual ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#ElectricCurrentUnit

has facts

description^dp "Electric current is the flow (movement) of electric charge. The SI unit of electric current is the ampere, and electric current is measured using an ammeter. This class contains the following instance(s): "Abampere", "Ampere", "Biot", "Statampere"."^^string

is also defined as

class

Electric Dipole Moment Unitⁿⁱ back to ToC or Named Individual ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#ElectricDipoleMomentUnit

has facts

description^dp "The electric dipole moment (or electric dipole for short) is a measure of the polarity of a system of electric charges. [Wikipedia] This class has the following instance(s): "Coulomb meter", "Debye"."^^string

is also defined as

class

Electric Field Strength Unitⁿⁱ back to ToC or Named Individual ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#ElectricFieldStrengthUnit

has facts

description^dp "The strength of the electric field at a given point is defined as the force that would be exerted on a positive test charge of +1 coulomb placed at that point; the direction of the field is given by the direction of that force. Electric fields contain electrical energy with energy density proportional to the square of the field intensity. The electric field is to charge as gravitational acceleration is to mass and force density is to volume."^^string

is also defined as

class

Electricity and Magnetismⁿⁱ back to ToC or Named Individual ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#ElectricityAndMagnetismQuantityKind

belongs to

Quantity Kind Category^c

is also defined as

class

Electricity And Magnetism Unitⁿⁱ back to ToC or Named Individual ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#ElectricityAndMagnetismUnit

has facts

description^dp "The class of units used to measure the properties of electricity and magnetism."^^string

is also defined as

class

Energy Density Unitⁿⁱ back to ToC or Named Individual ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#EnergyDensityUnit

has facts

description^dp "Units that measure energy density, i.e. energy per unit volume."^^string

is also defined as

class

Energy Per Area Unitⁿⁱ back to ToC or Named Individual ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#EnergyPerAreaUnit

has facts

description^dp "Units that quantify energy per unit area."^^string

is also defined as

class

Energy per Electric Charge Unitⁿⁱ back to ToC or Named Individual ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#EnergyPerElectricChargeUnit

has facts

description^dp "The ratio of energy to electric charge arises repeatedly in electrodynamics. It is the dimensional equivalent to the electrostatic potential and electromotive force. In both cases, the SI unit is the volt, or newton meters per coulomb."^^string

is also defined as

class

Energy per Electric Charge Unitⁿⁱ back to ToC or Named Individual ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#PowerPerElectricChargeUnit

has facts

description^dp "The ratio of power to electric charge is proportional to the rate of change of electric potential."^^string

is also defined as

class

Financialⁿⁱ back to ToC or Named Individual ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#FinancialQuantityKind

belongs to

Quantity Kind Category^c

is also defined as

class

Financial Unitⁿⁱ back to ToC or Named Individual ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#FinancialUnit

has facts

description^dp "This class contains units that measure financial quantities, such as currency, transactions, rates of return, etc."^^string

is also defined as

class

Human Unitⁿⁱ back to ToC or Named Individual ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#HumanUnit

has facts

description^dp "units for measuring human resources"^^string

is also defined as

class

Inductance Unitⁿⁱ back to ToC or Named Individual ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#InductanceUnit

has facts

description^dp "An electric current flowing around a circuit produces a magnetic field and hence a magnetic flux through the circuit. The ratio of the magnetic flux to the current is called the inductance, or more accurately self-inductance of the circuit. [Wikipedia] This class contains the following instance(s): "Abhenry", "Henry", "Micro Henry", "Milli Henry", "Stathenry"."^^string

is also defined as

class

Informationⁿⁱ back to ToC or Named Individual ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#InformationQuantityKind

belongs to

Quantity Kind Category^c

is also defined as

class

Linear Thermal Expansion Unitⁿⁱ back to ToC or Named Individual ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#LinearThermalExpansionUnit

has facts

description^dp "When the temperature of a substance changes, the energy that is stored in the intermolecular bonds between atoms changes. When the stored energy increases, so does the length of the molecular bonds. As a result, solids typically expand in response to heating and contract on cooling; this dimensional response to temperature change is expressed by its coefficient of thermal expansion. Different coefficients of thermal expansion can be defined for a substance depending on whether the expansion is measured by: * linear thermal expansion * area thermal expansion * volumetric thermal expansion These characteristics are closely related. The volumetric thermal expansion coefficient can be defined for both liquids and solids. The linear thermal expansion can only be defined for solids, and is common in engineering applications. Some substances expand when cooled, such as freezing water, so they have negative thermal expansion coefficients. [Wikipedia]"^^string

is also defined as

class

Linear Velocity Unitⁿⁱ back to ToC or Named Individual ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#LinearVelocityUnit

has facts

description^dp "Linear Velocity units measure change of length per unit time. Examples include meters per second, miles per hour, knots, etc. "^^string

is also defined as

class

Logarithmic Unitⁿⁱ back to ToC or Named Individual ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#LogarithmicUnit

has facts

description^dp "Logarithmic units are abstract mathematical units that can be used to express any quantities (physical or mathematical) that are defined on a logarithmic scale, that is, as being proportional to the value of a logarithm function. Examples of logarithmic units include common units of information and entropy, such as the bit, and the byte, as well as units of relative signal strength magnitude such as the decibel."^^string

is also defined as

class

Magnetic Field Strength Unitⁿⁱ back to ToC or Named Individual ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#MagneticFieldStrengthUnit

has facts

description^dp "A magnetic field is a vector field that permeates space and which can exert a magnetic force on moving electric charges and on magnetic dipoles (such as permanent magnets). [Wikipedia] The strength of a magnetic field at a point in space is the magnitude of the field vector at that point. This class contains the following instance(s): "Ampere per meter", "Ampere turn per inch", "Ampere turn per meter", "Oersted"."^^string

is also defined as

class

Magnetic Flux Unitⁿⁱ back to ToC or Named Individual ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#MagneticFluxUnit

has facts

description^dp "Magnetic flux is a measure of quantity of magnetism, taking into account the strength and the extent of a magnetic field. The SI unit of magnetic flux is the weber (in derived units: volt-seconds), and the unit of magnetic field is the weber per square meter, or tesla. [Wikipedia] This class contains the following instance(s): "Maxwell", "Unit pole", "Weber"."^^string

is also defined as

class

Magnetomotive Force Unitⁿⁱ back to ToC or Named Individual ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#MagnetomotiveForceUnit

has facts

description^dp "Magnetomotive force is any physical cause that produces magnetic flux. In other words, it is a field of magnetism (measured in tesla) that has area (measured in square meters), so that (Tesla)(Area)= Flux. It is analogous to electromotive force or voltage in electricity. MMF usually describes electric wire coils in a way so scientists can measure or predict the actual force a wire coil can generate. [Wikipedia] This class contains the following instance(s): "Ampere turn", "Gilbert", "Oersted centimeter", "Unit pole"."^^string

is also defined as

class

Mechanicsⁿⁱ back to ToC or Named Individual ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#MechanicsQuantityKind

belongs to

Quantity Kind Category^c

is also defined as

class

Non SI Unitⁿⁱ back to ToC or Named Individual ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#NonSIUnit

is disjoint with

SI Unit

has facts

description^dp "A Non-SI unit. Typically an imperial measure."^^string

is also defined as

class

Not Used With SI Unitⁿⁱ back to ToC or Named Individual ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#NotUsedWithSIUnit

is disjoint with

Used With SI Unit

has facts

description^dp "A type specification for all units that are not used in the SI standard."^^string

is also defined as

class

Opticsⁿⁱ back to ToC or Named Individual ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#OpticsQuantityKind

belongs to

Quantity Kind Category^c

is also defined as

class

Photometry quantity kindⁿⁱ back to ToC or Named Individual ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#PhotometryQuantityKind

has facts

description^dp "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."^^string

is also defined as

class

Radiologyⁿⁱ back to ToC or Named Individual ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#RadiologyQuantityKind

belongs to

Quantity Kind Category^c

is also defined as

class

Radiometry quantity kindⁿⁱ back to ToC or Named Individual ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#RadiometryQuantityKind

has facts

description^dp "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."^^string

is also defined as

class

Resistance Unitⁿⁱ back to ToC or Named Individual ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#ResistanceUnit

has facts

description^dp "Electrical resistance is a ratio of the degree to which an object opposes an electric current through it, measured in ohms. Its reciprocal quantity is electrical conductance measured in siemens. This class contains the following instance(s): "Abohm", "Ohm", "Statohm"."^^string

is also defined as

class

SI Base Unitⁿⁱ back to ToC or Named Individual ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#SIBaseUnit

is disjoint with

SI Derived Unit

has facts

description^dp "All SI units are derived from the SI Base units"^^string

is also defined as

class

SI Unitⁿⁱ back to ToC or Named Individual ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#SIUnit

is disjoint with

Non SI Unit

has facts

description^dp "An SI unit"^^string

is also defined as

class

Signal Detection Threshold Unitⁿⁱ back to ToC or Named Individual ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#SignalDetectionThresholdUnit

has facts

description^dp "Signal relative to an underlying signal"^^string

is also defined as

class

Solid Angle Unitⁿⁱ back to ToC or Named Individual ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#SolidAngleUnit

has facts

description^dp "The solid angle subtended by a surface S is defined as the surface area of a unit sphere covered by the surface S's projection onto the sphere. A solid angle is related to the surface of a sphere in the same way an ordinary angle is related to the circumference of a circle. Since the total surface area of the unit sphere is 4*pi, the measure of solid angle will always be between 0 and 4*pi."^^string

is also defined as

class

Space and Timeⁿⁱ back to ToC or Named Individual ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#SpaceAndTimeQuantityKind

belongs to

Quantity Kind Category^c

is also defined as

class

Specific Energy Unitⁿⁱ back to ToC or Named Individual ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#SpecificEnergyUnit

has facts

description^dp "Units which quantify specific energy, i.e. energy per unit mass."^^string

is also defined as

class

Specific Heat Pressure Unitⁿⁱ back to ToC or Named Individual ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#SpecificHeatPressureUnit

has facts

description^dp "This class contains units of measure for specific heat capacity at a constant pressure."^^string

is also defined as

class

Specific Heat Volume Unitⁿⁱ back to ToC or Named Individual ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#SpecificHeatVolumeUnit

has facts

description^dp "This class contains units of measure for specific heat capacity at a constant volume."^^string

is also defined as

class

Thermal Expansion Unitⁿⁱ back to ToC or Named Individual ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#ThermalExpansionUnit

has facts

description^dp "When the temperature of a substance changes, the energy that is stored in the intermolecular bonds between atoms changes. When the stored energy increases, so does the length of the molecular bonds. As a result, solids typically expand in response to heating and contract on cooling; this dimensional response to temperature change is expressed by its coefficient of thermal expansion. Different coefficients of thermal expansion can be defined for a substance depending on whether the expansion is measured by: * linear thermal expansion * area thermal expansion * volumetric thermal expansion These characteristics are closely related. The volumetric thermal expansion coefficient can be defined for both liquids and solids. The linear thermal expansion can only be defined for solids, and is common in engineering applications. Some substances expand when cooled, such as freezing water, so they have negative thermal expansion coefficients. [Wikipedia]"^^string

is also defined as

class

Thermodynamicsⁿⁱ back to ToC or Named Individual ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#ThermodynamicsQuantityKind

belongs to

Quantity Kind Category^c

is also defined as

class

Thermodynamics Unitⁿⁱ back to ToC or Named Individual ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#ThermodynamicsUnit

has facts

description^dp "Thermodynamics units are units that provide reference scales for quantifying the conversion of energy into work, as well as heat and its relation to macroscopic variables such as temperature and pressure."^^string

is also defined as

class

Time Unitⁿⁱ back to ToC or Named Individual ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#TimeUnit

has facts

description^dp "Units that measure time."^^string

is also defined as

class

Turbidity Unitⁿⁱ back to ToC or Named Individual ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#TurbidityUnit

has facts

description^dp "Turbidity is the cloudiness or haziness of a fluid caused by individual particles (suspended solids) that are generally invisible to the naked eye, similar to smoke in air."^^string

is also defined as

class

Used With SI Unitⁿⁱ back to ToC or Named Individual ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#UsedWithSIUnit

is disjoint with

Not Used With SI Unit

has facts

description^dp "A type specification for all units that are used in the SI standard."^^string

is also defined as

class

Volume Per Time Unitⁿⁱ back to ToC or Named Individual ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#VolumePerTimeUnit

has facts

description^dp "A "Space And Time" Unit with the following instance(s): "Cubic foot per minute", "Cubic foot per second", "Cubic inch per minute", "Cubic meter per second", "Cubic yard per minute", "Gallon per day", "Gallon per minute"."^^string

is also defined as

class

Volume Thermal Expansion Unitⁿⁱ back to ToC or Named Individual ToC

IRI: http://data.nasa.gov/qudt/owl/qudt#VolumeThermalExpansionUnit

has facts

description^dp "When the temperature of a substance changes, the energy that is stored in the intermolecular bonds between atoms changes. When the stored energy increases, so does the length of the molecular bonds. As a result, solids typically expand in response to heating and contract on cooling; this dimensional response to temperature change is expressed by its coefficient of thermal expansion. Different coefficients of thermal expansion can be defined for a substance depending on whether the expansion is measured by: * linear thermal expansion * area thermal expansion * volumetric thermal expansion These characteristics are closely related. The volumetric thermal expansion coefficient can be defined for both liquids and solids. The linear thermal expansion can only be defined for solids, and is common in engineering applications. Some substances expand when cooled, such as freezing water, so they have negative thermal expansion coefficients. For exactly isotropic materials, the volumetric thermal expansion coefficient is very closely approximated as three times the linear coefficient. [Wikipedia]"^^string

is also defined as

class