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OVG_quantities-qudt-(v1.1).ttl
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OVG_quantities-qudt-(v1.1).ttl
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# Saved by TopBraid on Wed Jun 01 23:10:20 PDT 2011
# baseURI: http://qudt.org/1.1/vocab/quantity
# imports: http://qudt.org/1.1/schema/quantity
# imports: http://qudt.org/1.1/schema/qudt
# imports: http://qudt.org/1.1/vocab/unit
@prefix creativecommons: <http://creativecommons.org/ns#> .
@prefix dc: <http://purl.org/dc/elements/1.1/> .
@prefix owl: <http://www.w3.org/2002/07/owl#> .
@prefix quantity: <http://qudt.org/schema/quantity#> .
@prefix qudt: <http://qudt.org/schema/qudt#> .
@prefix qudt-1.1: <http://qudt.org/1.1/schema/qudt#> .
@prefix qudt-quantity: <http://qudt.org/vocab/quantity#> .
@prefix qudt-quantity-1.1: <http://qudt.org/1.1/vocab/quantity#> .
@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 unit: <http://qudt.org/vocab/unit#> .
@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/vocab/quantity>
rdf:type owl:Ontology ;
rdfs:label "QUDT Quantity"^^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 "Measurable Quantities"^^xsd:string ;
dc:title "QUDT Quantities Vocabulary Version 1.1"^^xsd:string ;
voag:hasCatalogEntry
<http://qudt.org/catalog/qudt#QUDT-QUANTITIES-VocabCatalogEntry> ;
voag:hasLicenseType <voag:CC-SHAREALIKE_3PT0-US> ;
voag:withAttributionTo
qudt:NASA-ARC-Attribution , voag:TopQuadrantAttribution ;
vaem:acronym "QUDT"^^xsd:string ;
vaem:dateCreated "2010-12-30T21:26:38"^^xsd:dateTime ;
vaem:description "The 'QUDT-Quantity Vocabulary\" provides a base set of quantities according to the 'Quantity' Schema Ontology. 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. 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."^^xsd:string ;
vaem:hasAspectScope "Basic treatment of quantities and units. No dimensional treatment in this graph."^^xsd:string ;
vaem:hasDisciplineScope
"All disciplines"^^xsd:string ;
vaem:hasDomainScope "Science, Medicine and Engineering"^^xsd:string ;
vaem:hasRole vaem:VocabularyGraph ;
vaem:lastUpdated "$LastChangedDate: 2011-06-01 13:34:19 -0700 (Wed, 01 Jun 2011) $"^^xsd:string ;
vaem:namespace "http://qudt.org/vocab/quantity"^^xsd:string ;
vaem:namespacePrefix
"qudt-quantity"^^xsd:string ;
vaem:revisionNumber "1.1"^^xsd:string ;
vaem:specificity 1 ;
vaem:usesNonImportedResource
dc:creator , dc:author , dc:rights , dc:subject , skos:exactMatch , dc:description , <voag:CC-SHAREALIKE_3PT0-US> , dc:title , skos:closeMatch , dc:contributor ;
owl:imports <http://qudt.org/1.1/schema/quantity> , <http://qudt.org/1.1/vocab/unit> , <http://qudt.org/1.1/schema/qudt> ;
owl:versionIRI <http://qudt.org/1.1/vocab/quantity> ;
owl:versionInfo "$Id: OVG_quantities-qudt-(v1.1).ttl 4988 2011-06-01 20:34:19Z RalphHodgson $"^^xsd:string .
qudt-quantity:AbsoluteHumidity
rdf:type qudt:QuantityKind ;
rdfs:label "Absolute Humidity"^^xsd:string ;
qudt:description "Absolute humidity is the mass of water in a particular volume of air. It is a measure of the density of water vapor in an atmosphere."^^xsd:string ;
qudt:generalization qudt-quantity:Density ;
skos:closeMatch <http://dbpedia.org/resource/Humidity> .
qudt-quantity:AbsorbedDose
rdf:type qudt:RadiologyQuantityKind ;
rdfs:label "Absorbed Dose"^^xsd:string ;
qudt:description """Absorbed dose (also known as Total Ionizing Dose, TID) is a measure of the energy deposited in a medium by ionizing radiation. It is equal to the energy deposited per unit mass of medium, and so has the unit J/kg, which is given the special name Gray (Gy).
Note that the absorbed dose is not a good indicator of the likely biological effect. 1 Gy of alpha radiation would be much more biologically damaging than 1 Gy of photon radiation for example. Appropriate weighting factors can be applied reflecting the different relative biological effects to find the equivalent dose.
The risk of stoctic effects due to radiation exposure can be quantified using the effective dose, which is a weighted average of the equivalent dose to each organ depending upon its radiosensitivity. When ionising radiation is used to treat cancer, the doctor will usually prescribe the radiotherapy treatment in Gy. When risk from ionising radiation is being discussed, a related unit, the Sievert is used."""^^xsd:string ;
qudt:generalization qudt-quantity:SpecificEnergy ;
skos:exactMatch <http://dbpedia.org/resource/Absorbed_dose> .
qudt-quantity:AbsorbedDoseRate
rdf:type qudt:RadiologyQuantityKind ;
rdfs:label "Absorbed Dose Rate"^^xsd:string .
qudt-quantity:Acceleration
rdf:type qudt:SpaceAndTimeQuantityKind ;
rdfs:label "Acceleration"^^xsd:string ;
qudt:description """Acceleration is the (instantaneous) rate of change of velocity. Acceleration may be either linear acceleration, or angular acceleration. It is a vector quantity with dimension length/time^2 for linear acceleration, or in the case of angular acceleration, with dimension angle/time^2. In SI units, linear acceleration is measured in meters/second^2 (m·s^-2) and angular acceleration is measured in radians/second^2.
In common speech, the term acceleration is only used for an increase in speed. In physics, any increase or decrease in speed is referred to as acceleration and similarly, motion in a circle at constant speed is also an acceleration, since the direction component of the velocity is changing."""^^xsd:string ;
skos:exactMatch <http://dbpedia.org/resource/Acceleration> .
qudt-quantity:Action
rdf:type qudt:QuantumMechanicsQuantityKind ;
rdfs:label "Action"^^xsd:string ;
qudt:abbreviation "S"^^xsd:string ;
qudt:symbol "S"^^xsd:string .
qudt-quantity:Activity
rdf:type qudt:QuantumMechanicsQuantityKind ;
rdfs:label "Activity"^^xsd:string ;
qudt:description "Activity is the term used to characterise the number of nuclei which disintegrate in a radioactive substance per unit time. Activity is usually measured in Becquerels (Bq), where 1 Bq is 1 disintegration per second."^^xsd:string ;
qudt:generalization qudt-quantity:StochasticProcess ;
skos:exactMatch <http://dbpedia.org/resource/Radioactive_decay> .
qudt-quantity:AmountOfSubstance
rdf:type qudt:ChemistryQuantityKind ;
rdfs:label "Amount of Substance"^^xsd:string ;
qudt:symbol "N"^^xsd:string ;
skos:exactMatch <http://dbpedia.org/resource/Amount_of_substance> .
qudt-quantity:AmountOfSubstancePerUnitMass
rdf:type qudt:ChemistryQuantityKind ;
rdfs:label "Amount of substance per unit mass"^^xsd:string ;
qudt:generalization qudt-quantity:Concentration .
qudt-quantity:AmountOfSubstancePerUnitVolume
rdf:type qudt:ChemistryQuantityKind ;
rdfs:label "Amount of Substance Per Unit Volume"^^xsd:string ;
qudt:generalization qudt-quantity:Concentration .
qudt-quantity:Angle
rdf:type qudt:SpaceAndTimeQuantityKind ;
rdfs:label "Angle"^^xsd:string ;
qudt:description "The inclination to each other of two intersecting lines, measured by the arc of a circle intercepted between the two lines forming the angle, the center of the circle being the point of intersection. An acute angle is less than 90°; a right angle 90 °; an obtuse angle, more than 90° but less than 180 °; a straight angle, 180°; a reflex angle, more than 180° but less than 360°; a perigon, 360°. Any angle not a multiple of 90° is an oblique angle. If the sum of two angles is 90°, they are complementary angles; if 180°, supplementary angles; if 360°, explementary angles. Two adjacent angles have a common vertex and lie on opposite sides of a common side. A dihedral angle is the angle between two intersecting planes. A spherical angle is the angle between two intersecting great circles."^^xsd:string ;
qudt:generalization qudt-quantity:DimensionlessRatio ;
skos:exactMatch <http://dbpedia.org/resource/Angle> .
qudt-quantity:AngularAcceleration
rdf:type qudt:SpaceAndTimeQuantityKind ;
rdfs:label "Angular Acceleration"^^xsd:string ;
qudt:description """Angular acceleration is the rate of change of angular velocity over time. Measurement of the change made in the rate of change of an angle that a spinning object undergoes per unit time. It is a vector quantity. Also called Rotational acceleration.
In SI units, it is measured in radians per second squared (rad/s^2), and is usually denoted by the Greek letter alpha."""^^xsd:string ;
qudt:generalization qudt-quantity:Acceleration ;
skos:exactMatch <http://dbpedia.org/resource/Angular_acceleration> .
qudt-quantity:AngularFrequency
rdf:type qudt:SpaceAndTimeQuantityKind ;
rdfs:label "Angular Frequency"^^xsd:string ;
qudt:description "Angular frequency is a scalar measure of rotation rate. It is the magnitude of the vector quantity angular velocity. "^^xsd:string ;
qudt:generalization qudt-quantity:Frequency ;
qudt:symbol "ω"^^xsd:string ;
skos:exactMatch <http://dbpedia.org/resource/Angular_frequency> .
qudt-quantity:AngularMomentum
rdf:type qudt:MechanicsQuantityKind ;
rdfs:label "Angular Momentum"^^xsd:string ;
qudt:description """Quantity of rotational motion.
Linear momentum is the quantity obtained by multiplying the mass of a body by its linear velocity. Angular momentum is the quantity obtained by multiplying the moment of inertia of a body by its angular velocity. The momentum of a system of particles is given by the sum of the momenta of the individual particles which make up the system or by the product of the total mass of the system and the velocity of the center of gravity of the system. The momentum of a continuous medium is given by the integral of the velocity over the mass of the medium or by the product of the total mass of the medium and the velocity of the center of gravity of the medium.
In physics, the angular momentum of an object rotating about some reference point is the measure of the extent to which the object will continue to rotate about that point unless acted upon by an external torque. In particular, if a point mass rotates about an axis, then the angular momentum with respect to a point on the axis is related to the mass of the object, the velocity and the distance of the mass to the axis. While the motion associated with linear momentum has no absolute frame of reference, the rotation associated with angular momentum is sometimes spoken of as being measured relative to the fixed stars."""^^xsd:string ;
qudt:generalization qudt-quantity:Momentum ;
skos:exactMatch <http://dbpedia.org/resource/Angular_momentum> .
qudt-quantity:AngularVelocity
rdf:type qudt:SpaceAndTimeQuantityKind ;
rdfs:label "Angular Velocity"^^xsd:string ;
qudt:description "The change of angle per unit time; specifically, in celestial mechanics, the change in angle of the radius vector per unit time."^^xsd:string ;
qudt:generalization qudt-quantity:Velocity ;
skos:exactMatch <http://dbpedia.org/resource/Angular_velocity> .
qudt-quantity:Area
rdf:type qudt:SpaceAndTimeQuantityKind ;
rdfs:label "Area"^^xsd:string ;
qudt:description "Area is a quantity expressing the two-dimensional size of a defined part of a surface, typically a region bounded by a closed curve."^^xsd:string ;
skos:exactMatch <http://dbpedia.org/resource/Area> .
qudt-quantity:AreaAngle
rdf:type qudt:SpaceAndTimeQuantityKind ;
rdfs:label "Area Angle"^^xsd:string .
qudt-quantity:AreaPerTime
rdf:type qudt:MechanicsQuantityKind ;
rdfs:label "Area per Time"^^xsd:string .
qudt-quantity:AreaTemperature
rdf:type qudt:ThermodynamicsQuantityKind ;
rdfs:label "Area Temperature"^^xsd:string .
qudt-quantity:AreaThermalExpansion
rdf:type qudt:ThermodynamicsQuantityKind ;
rdfs:label "Area Thermal Expansion"^^xsd:string ;
qudt:description """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]"""^^xsd:string .
qudt-quantity:AreaTime
rdf:type qudt:SpaceAndTimeQuantityKind ;
rdfs:label "Area Time"^^xsd:string .
qudt-quantity:AreaTimeTemperature
rdf:type qudt:ThermodynamicsQuantityKind ;
rdfs:label "Area Time Temperature"^^xsd:string .
qudt-quantity:Asset
rdf:type qudt:FinancialQuantityKind ;
rdfs:label "Asset"^^xsd:string ;
qudt:description "An Asset is an economic resource owned by a business or company. Simply stated, assets are things of value that can be readily converted into cash (although cash itself is also considered an asset)."^^xsd:string .
qudt-quantity:AtmosphericPressure
rdf:type qudt:FluidMechanicsQuantityKind ;
rdfs:label "Atmospheric Pressure"^^xsd:string ;
qudt:description "The pressure exerted at a point due to the presence of an atmosphere. In most circumstances atmospheric pressure is closely approximated by the hydrostatic pressure caused by the weight of air above the measurement point. Low pressure areas have less atmospheric mass above their location, whereas high pressure areas have more atmospheric mass above their location. Similarly, as elevation increases there is less overlying atmospheric mass, so that pressure decreases with increasing elevation. [Wikipedia]"^^xsd:string ;
qudt:generalization qudt-quantity:Pressure ;
skos:exactMatch <http://dbpedia.org/resource/Atmospheric_pressure> .
qudt-quantity:AtomicCharge
rdf:type qudt:AtomicPhysicsQuantityKind ;
rdfs:label "Atomic Charge"^^xsd:string .
qudt-quantity:AuxillaryMagneticField
rdf:type qudt:ElectricityAndMagnetismQuantityKind ;
rdfs:label "Auxillary Magnetic Field"^^xsd:string ;
qudt:abbreviation "H"^^xsd:string ;
qudt:description "Magnetic Fields surround magnetic materials and electric currents and are detected by the force they exert on other magnetic materials and moving electric charges. The electric and magnetic fields are two interrelated aspects of a single object, called the electromagnetic field. A pure electric field in one reference frame is observed as a combination of both an electric field and a magnetic field in a moving reference frame. The Auxillary Magnetic Field, H characterizes how the true Magnetic Field B influences the organization of magnetic dipoles in a given medium."^^xsd:string ;
qudt:generalization qudt-quantity:ElectricCurrentPerUnitLength .
qudt-quantity:Capacitance
rdf:type qudt:ElectricityAndMagnetismQuantityKind ;
rdfs:label "Capacitance"^^xsd:string ;
qudt:description "Capacitance is the ability of a body to hold an electrical charge; it is quantified as the amount of electric charge stored for a given electric potential. Capacitance is a scalar-valued quantity."^^xsd:string ;
skos:exactMatch <http://dbpedia.org/resource/Capacitance> .
qudt-quantity:Capacity
rdf:type qudt:InformationQuantityKind ;
rdfs:label "Capacity"^^xsd:string ;
qudt:description """In computer operations, (a) the largest quantity which can be stored, processed, or transferred; (b) the largest number of digits or characters which may regularly be processed; (c) the upper and lower limits of the quantities which may be processed.
In other contexts, the amount of material that can be stored, such as fuel or food."""^^xsd:string ;
qudt:symbol "TBD"^^xsd:string ;
skos:exactMatch <http://dbpedia.org/resource/Capacity> .
qudt-quantity:CatalyticActivity
rdf:type qudt:ChemistryQuantityKind ;
rdfs:label "Catalytic Activity"^^xsd:string ;
skos:exactMatch <http://dbpedia.org/resource/Catalysis> .
qudt-quantity:Circulation
rdf:type qudt:FluidMechanicsQuantityKind ;
rdfs:label "Circulation"^^xsd:string ;
qudt:description "In fluid dynamics, circulation is the line integral around a closed curve of the fluid velocity. It has dimensions of length squared over time."^^xsd:string ;
qudt:generalization qudt-quantity:AreaPerTime ;
qudt:symbol "Γ"^^xsd:string ;
skos:exactMatch <http://dbpedia.org/resource/Circulation_%28fluid_dynamics%29> .
qudt-quantity:CoefficientOfHeatTransfer
rdf:type qudt:ThermodynamicsQuantityKind ;
rdfs:label "Coefficient of Heat Transfer"^^xsd:string ;
skos:closeMatch <http://dbpedia.org/resource/Heat_transfer> .
qudt-quantity:CompressibilityFactor
rdf:type qudt:ThermodynamicsQuantityKind ;
rdfs:label "Compressibility Factor"^^xsd:string ;
qudt:description "The compressibility factor (Z) is a useful thermodynamic property for modifying the ideal gas law to account for the real gas behaviour. The closer a gas is to a phase change, the larger the deviations from ideal behavior. Values for compressibility are calculated using equations of state (EOS), such as the virial equation and van der Waals equation. The compressibility factor for specific gases can be obtained, with out calculation, from compressibility charts. These charts are created by plotting Z as a function of pressure at constant temperature."^^xsd:string ;
qudt:generalization qudt-quantity:DimensionlessRatio ;
qudt:symbol "Z"^^xsd:string .
qudt-quantity:Concentration
rdf:type qudt:ChemistryQuantityKind ;
rdfs:label "Concentration"^^xsd:string ;
skos:exactMatch <http://dbpedia.org/resource/Concentration> .
qudt-quantity:CubicElectricDipoleMomentPerSquareEnergy
rdf:type qudt:ElectricityAndMagnetismQuantityKind ;
rdfs:label "Cubic Electric Dipole Moment per Square Energy"^^xsd:string .
qudt-quantity:Currency
rdf:type qudt:FinancialQuantityKind ;
rdfs:label "Currency"^^xsd:string ;
qudt:generalization qudt-quantity:Asset ;
skos:exactMatch <http://dbpedia.org/resource/Currency> .
qudt-quantity:Curvature
rdf:type qudt:SpaceAndTimeQuantityKind ;
rdfs:label "Curvature"^^xsd:string ;
qudt:description """The canonical 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]"""^^xsd:string ;
skos:exactMatch <http://dbpedia.org/resource/Curvature> .
qudt-quantity:DataRate
rdf:type qudt:InformationQuantityKind ;
rdfs:label "Data Rate"^^xsd:string ;
qudt:description "The frequency derived from the period of time required to transmit one bit. This represents the amount of data transferred per second by a communications channel or a computing or storage device. Data rate is measured in units of bits per second (written \"b/s\" or \"bps\"), bytes per second (Bps), or baud. When applied to data rate, the multiplier prefixes \"kilo-\", \"mega-\", \"giga-\", etc. (and their abbreviations, \"k\", \"M\", \"G\", etc.) always denote powers of 1000. For example, 64 kbps is 64,000 bits per second. This contrasts with units of storage which use different prefixes to denote multiplication by powers of 1024, e.g. 1 kibibit = 1024 bits."^^xsd:string ;
skos:exactMatch <http://dbpedia.org/resource/Data_rate> .
qudt-quantity:Density
rdf:type qudt:MechanicsQuantityKind ;
rdfs:label "Density"^^xsd:string ;
skos:exactMatch <http://dbpedia.org/resource/Density> .
qudt-quantity:Dimensionless
rdf:type qudt:QuantityKind ;
rdfs:label "Dimensionless"^^xsd:string ;
qudt:symbol "U"^^xsd:string ;
skos:exactMatch <http://dbpedia.org/resource/Dimensionless_quantity> .
qudt-quantity:DimensionlessRatio
rdf:type qudt:QuantityKind ;
rdfs:label "Dimensionless Ratio"^^xsd:string ;
qudt:generalization qudt-quantity:Dimensionless ;
qudt:symbol "ψ"^^xsd:string ;
skos:closeMatch <http://dbpedia.org/resource/Ratio> .
qudt-quantity:DoseEquivalent
rdf:type qudt:RadiologyQuantityKind ;
rdfs:label "Dose Equivalent"^^xsd:string ;
qudt:description "The equivalent dose to a tissue is found by multiplying the absorbed dose, in gray, by a dimensionless \"quality factor\" Q, dependent upon radiation type, and by another dimensionless factor N, dependent on all other pertinent factors. N depends upon the part of the body irradiated, the time and volume over which the dose was spread, even the species of the subject."^^xsd:string ;
qudt:generalization qudt-quantity:SpecificEnergy ;
skos:exactMatch <http://dbpedia.org/resource/Equivalent_dose> .
qudt-quantity:DryVolume
rdf:type qudt:SpaceAndTimeQuantityKind ;
rdfs:label "Dry Volume"^^xsd:string ;
qudt:generalization qudt-quantity:Volume .
qudt-quantity:DynamicPressure
rdf:type qudt:FluidMechanicsQuantityKind ;
rdfs:label "Dynamic Pressure"^^xsd:string ;
qudt:description """Dynamic Pressure (indicated with q, or Q, and sometimes called velocity pressure) is the quantity defined by:
q = 1/2 * ρv^2
where (using SI units):
q = dynamic pressure in pascals
ρ = fluid density in kg/m3 (e.g. density of air)
v = fluid velocity in m/s"""^^xsd:string ;
qudt:generalization qudt-quantity:Pressure ;
qudt:symbol "q"^^xsd:string ;
skos:exactMatch <http://dbpedia.org/resource/Dynamic_pressure> .
qudt-quantity:DynamicViscosity
rdf:type qudt:FluidMechanicsQuantityKind ;
rdfs:label "Dynamic Viscosity"^^xsd:string ;
qudt:generalization qudt-quantity:Viscosity ;
qudt:symbol "μ"^^xsd:string ;
skos:closeMatch <http://dbpedia.org/resource/Viscosity> .
qudt-quantity:ElectricCharge
rdf:type qudt:ElectricityAndMagnetismQuantityKind ;
rdfs:label "Electric Charge"^^xsd:string ;
qudt:description "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 electric charge on a body may be positive or negative. Two positively charged bodies experience a mutual repulsive force, as do two negatively charged bodies. A positively charged body and a negatively charged body experience an attractive force."^^xsd:string ;
qudt:symbol "Q"^^xsd:string ;
skos:exactMatch <http://dbpedia.org/resource/Electric_charge> .
qudt-quantity:ElectricChargeLineDensity
rdf:type qudt:ElectricityAndMagnetismQuantityKind ;
rdfs:label "Electric Charge Line Density"^^xsd:string .
qudt-quantity:ElectricChargePerAmountOfSubstance
rdf:type qudt:ElectricityAndMagnetismQuantityKind , qudt:ChemistryQuantityKind ;
rdfs:label "Electric Charge per Amount of Substance"^^xsd:string .
qudt-quantity:ElectricChargePerArea
rdf:type qudt:ElectricityAndMagnetismQuantityKind ;
rdfs:label "Electric Charge per Unit Area"^^xsd:string .
qudt-quantity:ElectricChargePerMass
rdf:type qudt:ElectricityAndMagnetismQuantityKind ;
rdfs:label "Electric Charge per Mass"^^xsd:string .
qudt-quantity:ElectricChargeVolumeDensity
rdf:type qudt:ElectricityAndMagnetismQuantityKind ;
rdfs:label "Electric Charge Volume Density"^^xsd:string ;
qudt:symbol "ρ"^^xsd:string .
qudt-quantity:ElectricConductivity
rdf:type qudt:ElectricityAndMagnetismQuantityKind ;
rdfs:label "Electric Conductivity"^^xsd:string ;
qudt:description """Electric conductivity or specific conductance is a measure of a material's ability to conduct an electric current. When an electrical potential difference is placed across a conductor, its movable charges flow, giving rise to an electric current. The conductivity σ is defined as the ratio of the electric current density J to the electric field E:
J = σE
In isotropic materials, conductivity is scalar-valued, however in general, conductivity is a tensor-valued quantity."""^^xsd:string ;
qudt:symbol "σ"^^xsd:string .
qudt-quantity:ElectricCurrent
rdf:type qudt:ElectricityAndMagnetismQuantityKind ;
rdfs:label "Electric Current"^^xsd:string ;
qudt:description "Electric Current is the flow (movement) of electric charge. The amount of electric current through some surface, e.g., a section through a copper conductor, is defined as the amount of electric charge flowing through that surface over time. Current is a scalar-valued quantity."^^xsd:string ;
qudt:symbol "I"^^xsd:string ;
skos:exactMatch <http://dbpedia.org/resource/Electric_current> .
qudt-quantity:ElectricCurrentDensity
rdf:type qudt:ElectricityAndMagnetismQuantityKind ;
rdfs:label "Electric Current Density"^^xsd:string ;
qudt:abbreviation "J"^^xsd:string ;
qudt:description "Electric current density is a measure of the density of flow of electric charge; it is the electric current per unit area of cross section. Electric current density is a vector-valued quantity."^^xsd:string ;
qudt:symbol "J"^^xsd:string ;
skos:exactMatch <http://dbpedia.org/resource/Current_density> .
qudt-quantity:ElectricCurrentPerAngle
rdf:type qudt:ElectricityAndMagnetismQuantityKind ;
rdfs:label "Electric Current per Angle"^^xsd:string .
qudt-quantity:ElectricCurrentPerUnitEnergy
rdf:type qudt:ElectricityAndMagnetismQuantityKind ;
rdfs:label "Electric Current per Unit Energy"^^xsd:string .
qudt-quantity:ElectricCurrentPerUnitLength
rdf:type qudt:ElectricityAndMagnetismQuantityKind ;
rdfs:label "Electric Current per Unit Length"^^xsd:string .
qudt-quantity:ElectricDipoleMoment
rdf:type qudt:ElectricityAndMagnetismQuantityKind ;
rdfs:label "Electric Dipole Moment"^^xsd:string ;
qudt:description "The Electric Dipole Moment is a measure of the separation of positive and negative electrical charges in a system of (discrete or continuous) charges. It is a vector-valued quantity. If the system of charges is neutral, that is if the sum of all charges is zero, then the dipole moment of the system is independent of the choice of a reference frame; however in a non-neutral system, such as the dipole moment of a single proton, a dependence on the choice of reference point arises. In such cases it is conventional to choose the reference point to be the center of mass of the system or the center of charge, not some arbitrary origin. This convention ensures that the dipole moment is an intrinsic property of the system."^^xsd:string ;
skos:closeMatch <http://dbpedia.org/resource/Dipole> .
qudt-quantity:ElectricDisplacementField
rdf:type qudt:ElectricityAndMagnetismQuantityKind ;
rdfs:label "Electric Displacement Field"^^xsd:string ;
qudt:abbreviation "D"^^xsd:string ;
qudt:description "In a dielectric material the presence of an electric field E causes the bound charges in the material (atomic nuclei and their electrons) to slightly separate, inducing a local electric dipole moment. The Electric Displacement Field, D, is a vector field that accounts for the effects of free charges within such dielectric materials. "^^xsd:string ;
qudt:generalization qudt-quantity:ElectricChargePerArea ;
qudt:symbol "D"^^xsd:string .
qudt-quantity:ElectricField
rdf:type qudt:ElectricityAndMagnetismQuantityKind ;
rdfs:label "Electric Field"^^xsd:string ;
qudt:abbreviation "E"^^xsd:string ;
qudt:description "The space surrounding an electric charge or in the presence of a time-varying magnetic field has a property called an electric field. This electric field exerts a force on other electrically charged objects. In the idealized case, the force exerted between two point charges is inversely proportional to the square of the distance between them. (Coulomb's Law)"^^xsd:string .
qudt-quantity:ElectricFlux
rdf:type qudt:ElectricityAndMagnetismQuantityKind ;
rdfs:label "Electric Flux"^^xsd:string ;
qudt:description "The Electric Flux through an area is defined as the electric field multiplied by the area of the surface projected in a plane perpendicular to the field. Electric Flux is a scalar-valued quantity."^^xsd:string ;
skos:exactMatch <http://dbpedia.org/resource/Electric_flux> .
qudt-quantity:ElectricPotential
rdf:type qudt:ElectricityAndMagnetismQuantityKind ;
rdfs:label "Electric Potential"^^xsd:string ;
qudt:description "The Electric Potential is a scalar valued quantity associated with an electric field. The electric potential Φ(x) at a point, x, is formally defined as the line integral of the electric field taken along a path from x to the point at infinity. If the electric field is static, i.e. time independent, then the choice of the path is arbitrary; however if the electric field is time dependent, taking the integral along different paths will produce different results."^^xsd:string ;
qudt:generalization qudt-quantity:EnergyPerElectricCharge ;
qudt:symbol "Φ"^^xsd:string ;
skos:closeMatch <http://dbpedia.org/resource/Category:Units_of_electrical_potential> .
qudt-quantity:ElectricPower
rdf:type qudt:ElectricityAndMagnetismQuantityKind ;
rdfs:label "Electric Power"^^xsd:string ;
qudt:description """Electric power is the rate at which electrical energy is transferred by an electric circuit. In the simple case of direct current circuits, electric power can be calculated as the product of the potential difference in the circuit (V) and the amount of current flowing in the circuit (I):
P = VI
where
P is the power
V is the potential difference
I is the current.
However, in general electric power is calculated by taking the integral of the vector cross-product of the electrical and magnetic fields over a specified area."""^^xsd:string ;
qudt:generalization qudt-quantity:Power .
qudt-quantity:ElectricQuadrupoleMoment
rdf:type qudt:ElectricityAndMagnetismQuantityKind ;
rdfs:label "Electric Quadrupole Moment"^^xsd:string ;
qudt:description "The Electric Quadrupole Moment is a quantity which describes the effective shape of the ellipsoid of nuclear charge distribution. A non-zero quadrupole moment Q indicates that the charge distribution is not spherically symmetric. By convention, the value of Q is taken to be positive if the ellipsoid is prolate and negative if it is oblate. In general, the electric quadrupole moment is tensor-valued."^^xsd:string ;
qudt:symbol "Q"^^xsd:string ;
skos:closeMatch <http://dbpedia.org/resource/Quadrupole> .
qudt-quantity:ElectromotiveForce
rdf:type qudt:ElectricityAndMagnetismQuantityKind ;
rdfs:label "Electromotive Force"^^xsd:string ;
qudt:description "In physics, electromotive force, or most commonly emf (seldom capitalized), or (occasionally) electromotance is \"that which tends to cause current (actual electrons and ions) to flow.\"[1]. More formally, emf is the external work expended per unit of charge to produce an electric potential difference across two open-circuited terminals.[2][3] The electric potential difference is created by separating positive and negative charges, thereby generating an electric field.[4][5] The created electrical potential difference drives current flow if a circuit is attached to the source of emf. When current flows, however, the voltage across the terminals of the source of emf is no longer the open-circuit value, due to voltage drops inside the device due to its internal resistance. [Wikipedia]"^^xsd:string ;
qudt:generalization qudt-quantity:EnergyPerElectricCharge ;
qudt:symbol "ℰ"^^xsd:string ;
skos:exactMatch <http://dbpedia.org/resource/Electromotive_force> .
qudt-quantity:EnergyAndWork
rdf:type qudt:MechanicsQuantityKind ;
rdfs:label "Energy and Work"^^xsd:string ;
skos:exactMatch <http://dbpedia.org/resource/Energy> , <http://dbpedia.org/resource/Work_%28physics%29> .
qudt-quantity:EnergyAndWorkPerMassAmountOfSubstance
rdf:type qudt:ChemistryQuantityKind ;
rdfs:label "Energy and Work per Mass Amount of Substance"^^xsd:string .
qudt-quantity:EnergyDensity
rdf:type qudt:MechanicsQuantityKind ;
rdfs:label "Energy Density"^^xsd:string ;
qudt:description "Energy density is defined as energy per unit volume. The SI unit for energy density is the joule per cubic meter."^^xsd:string ;
skos:exactMatch <http://dbpedia.org/resource/Energy_density> .
qudt-quantity:EnergyInternal
rdf:type qudt:MechanicsQuantityKind ;
rdfs:label "Internal Energy"^^xsd:string ;
qudt:generalization qudt-quantity:EnergyAndWork ;
skos:exactMatch <http://dbpedia.org/resource/Internal_energy> .
qudt-quantity:EnergyKinetic
rdf:type qudt:MechanicsQuantityKind ;
rdfs:label "Kinetic Energy"^^xsd:string ;
qudt:generalization qudt-quantity:EnergyAndWork ;
skos:exactMatch <http://dbpedia.org/resource/Kinetic_energy> .
qudt-quantity:EnergyPerArea
rdf:type qudt:MechanicsQuantityKind ;
rdfs:label "Energy per Area"^^xsd:string .
qudt-quantity:EnergyPerAreaElectricCharge
rdf:type qudt:ElectricityAndMagnetismQuantityKind ;
rdfs:label "Energy per Area Electric Charge"^^xsd:string .
qudt-quantity:EnergyPerElectricCharge
rdf:type qudt:ElectricityAndMagnetismQuantityKind ;
rdfs:label "Energy per Electric Charge"^^xsd:string .
qudt-quantity:EnergyPerSquareMagneticFluxDensity
rdf:type qudt:ElectricityAndMagnetismQuantityKind ;
rdfs:label "Energy per Square Magnetic Flux Density"^^xsd:string .
qudt-quantity:EnergyPerTemperature
rdf:type qudt:ThermodynamicsQuantityKind ;
rdfs:label "Energy per Temperature"^^xsd:string .
qudt-quantity:Enthalpy
rdf:type qudt:ThermodynamicsQuantityKind ;
rdfs:label "Enthalpy"^^xsd:string ;
qudt:description "Static enthalpy per unit mass. The specific enthalpy of a working mass is a property of that mass used in thermodynamics, defined as h=u+p . v where u is the specific internal energy, p is the pressure, and v is specific volume. In other words, h = H / m where m is the mass of the system. The SI unit for specific enthalpy is joules per kilogram. [Wikipedia]"^^xsd:string ;
qudt:generalization qudt-quantity:EnergyAndWork ;
skos:exactMatch <http://dbpedia.org/resource/Enthalpy> .
qudt-quantity:Exposure
rdf:type qudt:RadiologyQuantityKind ;
rdfs:label "Exposure"^^xsd:string ;
qudt:generalization qudt-quantity:ElectricChargePerMass ;
skos:exactMatch <http://dbpedia.org/resource/Exposure> .
qudt-quantity:FirstMomentOfArea
rdf:type qudt:SolidMechanicsQuantityKind ;
rdfs:label "First Moment of Area"^^xsd:string ;
qudt:description "The first moment of area is the summation of area times distance to an axis. It is a measure of the distribution of the area of a shape in relationship to an axis."^^xsd:string ;
qudt:generalization qudt-quantity:Volume .
qudt-quantity:Force
rdf:type qudt:MechanicsQuantityKind ;
rdfs:label "Force"^^xsd:string ;
qudt:description """Force is an influence that causes mass to accelerate. It may be experienced as a lift, a push, or a pull. Force is defined by Newton's Second Law as F = m · a, where F is force, m is mass and a is acceleration.
Net force is mathematically equal to the time rate of change of the momentum of the body on which it acts. Since momentum is a vector quantity (has both a magnitude and direction), force also is a vector quantity."""^^xsd:string ;
skos:exactMatch <http://dbpedia.org/resource/Force> .
qudt-quantity:ForceMagnitude
rdf:type qudt:MechanicsQuantityKind ;
rdfs:label "Force Magnitude"^^xsd:string .
qudt-quantity:ForcePerArea
rdf:type qudt:MechanicsQuantityKind ;
rdfs:label "Force Per Area"^^xsd:string .
qudt-quantity:ForcePerAreaTime
rdf:type qudt:MechanicsQuantityKind ;
rdfs:label "Force Per Area Time"^^xsd:string .
qudt-quantity:ForcePerElectricCharge
rdf:type qudt:ElectricityAndMagnetismQuantityKind ;
rdfs:label "Force per Electric Charge"^^xsd:string .
qudt-quantity:ForcePerLength
rdf:type qudt:MechanicsQuantityKind ;
rdfs:label "Force per Unit Length"^^xsd:string .
qudt-quantity:Frequency
rdf:type qudt:SpaceAndTimeQuantityKind ;
rdfs:label "Frequency"^^xsd:string ;
qudt:description "Frequency is the number of occurrences of a repeating event per unit time. The repetition of the events may be periodic (i.e. the length of time between event repetitions is fixed) or aperiodic (i.e. the length of time between event repetitions varies). Therefore, we distinguish between periodic and aperiodic frequencies. In the SI system, periodic frequency is measured in hertz (Hz) or multiples of hertz, while aperiodic frequency is measured in becquerel (Bq)."^^xsd:string ;
skos:exactMatch <http://dbpedia.org/resource/Frequency> .
qudt-quantity:Friction
rdf:type qudt:MechanicsQuantityKind ;
rdfs:label "Friction"^^xsd:string ;
qudt:description "Friction is the force of two surfaces In contact, or the force of a medium acting on a moving object (i.e. air on an aircraft). When contacting surfaces move relative to each other, the friction between the two objects converts kinetic energy into thermal energy."^^xsd:string ;
qudt:generalization qudt-quantity:Force ;
skos:exactMatch <http://dbpedia.org/resource/Friction> .
qudt-quantity:Gain
rdf:type qudt:QuantityKind ;
rdfs:label "Gain"^^xsd:string ;
qudt:description "A general term used to denote an increase in signal power or signal strength in transmission from one point to another. Gain is usually expressed in decibels and is widely used to denote transducer gain. An increase or amplification. In radar there are two general usages of the term: (a) antenna gain, or gain factor, is the ratio of the power transmitted along the beam axis to that of an isotropic radiator transmitting the same total power; (b) receiver gain, or video gain, is the amplification given a signal by the receiver."^^xsd:string ;
qudt:generalization qudt-quantity:DimensionlessRatio ;
skos:exactMatch <http://dbpedia.org/resource/Gain> .
qudt-quantity:GravitationalAttraction
rdf:type qudt:MechanicsQuantityKind ;
rdfs:label "Gravitational Attraction"^^xsd:string ;
skos:closeMatch <http://dbpedia.org/resource/Gravitational_constant> .
qudt-quantity:GyromagneticRatio
rdf:type qudt:AtomicPhysicsQuantityKind ;
rdfs:label "Gyromagnetic Ratio"^^xsd:string ;
qudt:generalization qudt-quantity:ElectricChargePerMass ;
qudt:symbol "γ"^^xsd:string ;
skos:exactMatch <http://dbpedia.org/resource/Gyromagnetic_ratio> .
qudt-quantity:HeartRate
rdf:type qudt:BiologyQuantityKind ;
rdfs:label "Heart Rate"^^xsd:string ;
skos:exactMatch <http://dbpedia.org/resource/Heart_rate> .
qudt-quantity:Heat
rdf:type qudt:ThermodynamicsQuantityKind ;
rdfs:label "Heat"^^xsd:string ;
qudt:description "Energy transferred by a thermal process. Heat can be measured in terms of the dynamical units of energy, as the erg, joule, etc., or in terms of the amount of energy required to produce a definite thermal change in some substance, as, for example, the energy required per degree to raise the temperature of a unit mass of water at some temperature ( calorie, Btu)."^^xsd:string ;
qudt:generalization qudt-quantity:ThermalEnergy ;
skos:exactMatch <http://dbpedia.org/resource/Heat> .
qudt-quantity:HeatCapacity
rdf:type qudt:ThermodynamicsQuantityKind ;
rdfs:label "Heat Capacity"^^xsd:string ;
qudt:generalization qudt-quantity:EnergyPerTemperature ;
qudt:symbol "Cp"^^xsd:string .
qudt-quantity:HeatCapacityRatio
rdf:type qudt:ThermodynamicsQuantityKind ;
rdfs:label "Heat Capacity Ratio"^^xsd:string ;
qudt:description "The heat capacity ratio, or ratio of specific heats, is the ratio of the heat capacity at constant pressure (C_P) to heat capacity at constant volume (C_V). For an ideal gas, the heat capacity is constant with temperature (Θ). Accordingly we can express the enthalpy as H = C_P*Θ and the internal energy as U = C_V*Θ. Thus, it can also be said that the heat capacity ratio is the ratio between enthalpy and internal energy"^^xsd:string ;
qudt:generalization qudt-quantity:DimensionlessRatio ;
skos:exactMatch <http://dbpedia.org/resource/Heat_capacity_ratio> .
qudt-quantity:HeatFlowRate
rdf:type qudt:ThermodynamicsQuantityKind ;
rdfs:label "Heat Flow Rate"^^xsd:string ;
qudt:generalization qudt-quantity:Power ;
skos:closeMatch <http://dbpedia.org/resource/Heat_transfer> .
qudt-quantity:HeatFlowRatePerUnitArea
rdf:type qudt:ThermodynamicsQuantityKind ;
rdfs:label "Heat Flow Rate per Unit Area"^^xsd:string ;
qudt:generalization qudt-quantity:PowerPerArea .
qudt-quantity:Illuminance
rdf:type qudt:PhotometryQuantityKind ;
rdfs:label "Illuminance"^^xsd:string ;
qudt:description "Illuminance is the total luminous flux incident on a surface, per unit area. It is a measure of the intensity of the incident light, wavelength-weighted by the luminosity function to correlate with human brightness perception."^^xsd:string ;
qudt:generalization qudt-quantity:LuminousFluxPerArea ;
skos:exactMatch <http://dbpedia.org/resource/Illuminance> .
qudt-quantity:Inductance
rdf:type qudt:ElectricityAndMagnetismQuantityKind ;
rdfs:label "Inductance"^^xsd:string ;
qudt:description "Inductance is an electromagentic quantity that characterizes a circuit's resistance to any change of electric current; a change in the electric current through induces an opposing electromotive force (EMF). Quantitatively, inductance is proportional to the magnetic flux per unit of electric current."^^xsd:string ;
qudt:symbol "L"^^xsd:string ;
skos:exactMatch <http://dbpedia.org/resource/Inductance> .
qudt-quantity:InformationEntropy
rdf:type qudt:InformationQuantityKind ;
rdfs:label "Information Entropy"^^xsd:string .
qudt-quantity:InverseAmountOfSubstance
rdf:type qudt:ChemistryQuantityKind ;
rdfs:label "Inverse Amount of Substance"^^xsd:string .
qudt-quantity:InverseEnergy
rdf:type qudt:MechanicsQuantityKind ;
rdfs:label "Inverse Energy"^^xsd:string .
qudt-quantity:InverseLength
rdf:type qudt:SpaceAndTimeQuantityKind ;
rdfs:label "Inverse Length"^^xsd:string .
qudt-quantity:InverseLengthTemperature
rdf:type qudt:ThermodynamicsQuantityKind ;
rdfs:label "Inverse Length Temperature"^^xsd:string .
qudt-quantity:InverseMagneticFlux
rdf:type qudt:ElectricityAndMagnetismQuantityKind ;
rdfs:label "Inverse Magnetic Flux"^^xsd:string .
qudt-quantity:InversePermittivity
rdf:type qudt:ElectricityAndMagnetismQuantityKind ;
rdfs:label "Inverse Permittivity"^^xsd:string .
qudt-quantity:InverseSquareEnergy
rdf:type qudt:MechanicsQuantityKind ;
rdfs:label "Inverse Square Energy"^^xsd:string .
qudt-quantity:InverseTimeTemperature
rdf:type qudt:ThermodynamicsQuantityKind ;
rdfs:label "Inverse Time Temperature"^^xsd:string .
qudt-quantity:InverseVolume
rdf:type qudt:SpaceAndTimeQuantityKind ;
rdfs:label "Inverse Volume"^^xsd:string .
qudt-quantity:Irradiance
rdf:type qudt:RadiometryQuantityKind ;
rdfs:label "Irradiance"^^xsd:string ;
qudt:description "Irradiance and Radiant Emittance are radiometry terms for the power per unit area of electromagnetic radiation at a surface. \"Irradiance\" is used when the electromagnetic radiation is incident on the surface. \"Radiant emmitance\" (or \"radiant exitance\") is used when the radiation is emerging from the surface."^^xsd:string ;
qudt:generalization qudt-quantity:PowerPerArea .
qudt-quantity:KinematicViscosity
rdf:type qudt:FluidMechanicsQuantityKind ;
rdfs:label "Kinematic Viscosity"^^xsd:string ;
qudt:abbreviation "The Kinematic Viscosity of a fluid is the dynamic viscosity divided by the fluid density."^^xsd:string ;
qudt:generalization qudt-quantity:AreaPerTime ;
skos:exactMatch <http://dbpedia.org/resource/Viscosity> .
qudt-quantity:KineticEnergy
rdf:type qudt:MechanicsQuantityKind ;
rdfs:label "Kinetic Energy"^^xsd:string ;
qudt:description """The energy which a body possesses as a consequence of its motion, defined as one-half the product of its mass m and the square of its speed v, 1/2 mv^2. The kinetic energy per unit volume of a fluid parcel is the 1/2 p v2 , where p is the density and v the speed of the parcel. See potential energy.
For relativistic speeds the kinetic energy is given by
Ek = mc^2 - m0c^2
where c is the velocity of light in a vacuum, m0 is the rest mass, and m is the moving mass."""^^xsd:string ;
qudt:generalization qudt-quantity:EnergyAndWork ;
skos:exactMatch <http://dbpedia.org/resource/Kinetic_energy> .
qudt-quantity:Length
rdf:type qudt:SpaceAndTimeQuantityKind ;
rdfs:label "Length"^^xsd:string ;
qudt:symbol "L"^^xsd:string ;
skos:exactMatch <http://dbpedia.org/resource/Length> .
qudt-quantity:LengthByForce
rdf:type qudt:MechanicsQuantityKind ;
rdfs:label "Length Force"^^xsd:string .
qudt-quantity:LengthEnergy
rdf:type qudt:MechanicsQuantityKind ;
rdfs:label "Length Energy"^^xsd:string .
qudt-quantity:LengthMass
rdf:type qudt:MechanicsQuantityKind ;
rdfs:label "Length Mass"^^xsd:string .
qudt-quantity:LengthMolarEnergy
rdf:type qudt:ChemistryQuantityKind ;
rdfs:label "Length Molar Energy"^^xsd:string .
qudt-quantity:LengthPerUnitElectricCurrent
rdf:type qudt:ElectricityAndMagnetismQuantityKind ;
rdfs:label "Length per Unit Electric Current"^^xsd:string .
qudt-quantity:LengthPerUnitMagneticFlux
rdf:type qudt:ElectricityAndMagnetismQuantityKind ;
rdfs:label "Length per Unit Magnetic Flux"^^xsd:string .
qudt-quantity:LengthTemperature
rdf:type qudt:ThermodynamicsQuantityKind ;
rdfs:label "Length Temperature"^^xsd:string .
qudt-quantity:LengthTemperatureTime
rdf:type qudt:ThermodynamicsQuantityKind ;
rdfs:label "Length Temperature Time"^^xsd:string .
qudt-quantity:LinearAcceleration
rdf:type qudt:SpaceAndTimeQuantityKind ;
rdfs:label "Linear Acceleration"^^xsd:string ;
qudt:generalization qudt-quantity:Acceleration ;
skos:exactMatch <http://dbpedia.org/resource/Acceleration> .
qudt-quantity:LinearEnergyTransfer
rdf:type qudt:AtomicPhysicsQuantityKind ;
rdfs:label "Linear Energy Transfer"^^xsd:string ;
skos:exactMatch <http://dbpedia.org/resource/Linear_energy_transfer> .
qudt-quantity:LinearMomentum
rdf:type qudt:MechanicsQuantityKind ;
rdfs:label "Linear Momentum"^^xsd:string ;
qudt:description "Linear momentum is the product of mass and linear velocity. The SI unit for linear momentum is meter-kilogram per second (m-kg/s)."^^xsd:string ;
qudt:generalization qudt-quantity:Momentum ;
skos:exactMatch <http://dbpedia.org/resource/Momentum> .
qudt-quantity:LinearThermalExpansion
rdf:type qudt:ThermodynamicsQuantityKind ;
rdfs:label "Linear Thermal Expansion"^^xsd:string ;
qudt:description """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]"""^^xsd:string .
qudt-quantity:LinearVelocity
rdf:type qudt:SpaceAndTimeQuantityKind ;
rdfs:label "Linear Velocity"^^xsd:string ;
qudt:generalization qudt-quantity:Velocity ;
skos:exactMatch <http://dbpedia.org/resource/Velocity> .
qudt-quantity:LiquidVolume
rdf:type qudt:SpaceAndTimeQuantityKind ;
rdfs:label "Liquid Volume"^^xsd:string ;
qudt:generalization qudt-quantity:Volume .
qudt-quantity:Luminance
rdf:type qudt:PhotometryQuantityKind ;
rdfs:label "Luminance"^^xsd:string ;
qudt:description "Luminance is a photometric measure of the luminous intensity per unit area of light travelling in a given direction. It describes the amount of light that passes through or is emitted from a particular area, and falls within a given solid angle."^^xsd:string ;
skos:exactMatch <http://dbpedia.org/resource/Luminance> .
qudt-quantity:LuminousEfficacy
rdf:type qudt:PhotometryQuantityKind ;
rdfs:label "Luminous Efficacy"^^xsd:string ;
qudt:description "Luminous Efficacy is the ratio of luminous flux (in lumens) to power (usually measured in watts). Depending on context, the power can be either the radiant flux of the source's output, or it can be the total electric power consumed by the source."^^xsd:string .
qudt-quantity:LuminousEmmitance
rdf:type qudt:PhotometryQuantityKind ;
rdfs:label "Luminous Emmitance"^^xsd:string ;
qudt:description "Luminous Emittance is the luminous flux per unit area emitted from a surface."^^xsd:string ;
qudt:generalization qudt-quantity:LuminousFluxPerArea .
qudt-quantity:LuminousEnergy
rdf:type qudt:PhotometryQuantityKind ;
rdfs:label "Luminous Energy"^^xsd:string ;
qudt:description "Luminous Energy is the perceived energy of light. This is sometimes also called the quantity of light."^^xsd:string ;
qudt:symbol "Qv"^^xsd:string .
qudt-quantity:LuminousFlux
rdf:type qudt:PhotometryQuantityKind ;
rdfs:label "Luminous Flux"^^xsd:string ;
qudt:description "Luminous Flux or Luminous Power is the measure of the perceived power of light. It differs from radiant flux, the measure of the total power of light emitted, in that luminous flux is adjusted to reflect the varying sensitivity of the human eye to different wavelengths of light."^^xsd:string ;
qudt:symbol "F"^^xsd:string ;
skos:exactMatch <http://dbpedia.org/resource/Luminous_flux> .
qudt-quantity:LuminousFluxPerArea
rdf:type qudt:PhotometryQuantityKind ;
rdfs:label "Luminous Flux per Area"^^xsd:string .
qudt-quantity:LuminousIntensity
rdf:type qudt:PhotometryQuantityKind ;
rdfs:label "Luminous Intensity"^^xsd:string ;
qudt:description "Luminous Intensity is a measure of the wavelength-weighted power emitted by a light source in a particular direction per unit solid angle. The weighting is determined by the luminosity function, a standardized model of the sensitivity of the human eye to different wavelengths."^^xsd:string ;
qudt:symbol "J"^^xsd:string ;
skos:exactMatch <http://dbpedia.org/resource/Luminous_intensity> .
qudt-quantity:MachNumber
rdf:type qudt:SpaceAndTimeQuantityKind ;
rdfs:label "Mach Number"^^xsd:string ;
qudt:description """Mach number (Ma) is the speed of an object moving through air, or any fluid substance, divided by the speed of sound as it is in that substance:
M = V_o/V_s
where
M is the Mach number
V_o is the velocity of the object relative to the medium and
V_s is the velocity of sound in the medium
The Mach number is commonly used both with objects traveling at high speed in a fluid, and with high-speed fluid flows inside channels such as nozzles, diffusers or wind tunnels. As it is defined as a ratio of two speeds, it is a dimensionless number. [Wikipedia]"""^^xsd:string ;
qudt:generalization qudt-quantity:DimensionlessRatio ;
skos:exactMatch <http://dbpedia.org/resource/Mach_number> .
qudt-quantity:MagneticDipoleMoment
rdf:type qudt:ElectricityAndMagnetismQuantityKind ;
rdfs:label "Magnetic Dipole Moment"^^xsd:string ;
qudt:description "The magnetic moment of a system is a measure of the magnitude and the direction of its magnetism. Magnetic moment usually refers to its Magnetic Dipole Moment, and quantifies the contribution of the system's internal magnetism to the external dipolar magnetic field produced by the system (that is, the component of the external magnetic field that is inversely proportional to the cube of the distance to the observer). The Magnetic Dipole Moment is a vector-valued quantity."^^xsd:string ;
qudt:symbol "μ"^^xsd:string ;
skos:exactMatch <http://dbpedia.org/resource/Magnetic_moment> .
qudt-quantity:MagneticField
rdf:type qudt:ElectricityAndMagnetismQuantityKind ;
rdfs:label "Magnetic Field"^^xsd:string ;
qudt:abbreviation "B"^^xsd:string ;
qudt:description "The Magnetic Field, denoted B, is a fundamental field in electrodynamics which characterizes the magnetic force exerted by electric currents. It is closely related to the auxillary magnetic field H (see quantity:AuxillaryMagneticField)."^^xsd:string ;
qudt:symbol "B"^^xsd:string .
qudt-quantity:MagneticFlux
rdf:type qudt:ElectricityAndMagnetismQuantityKind ;
rdfs:label "Magnetic Flux"^^xsd:string ;
qudt:description "Magnetic Flux is the product of the average magnetic field times the perpendicular area that it penetrates."^^xsd:string ;
qudt:symbol "Φ"^^xsd:string ;
skos:exactMatch <http://dbpedia.org/resource/Magnetic_flux> .
qudt-quantity:MagneticFluxPerUnitLength
rdf:type qudt:ElectricityAndMagnetismQuantityKind ;
rdfs:label "Magnetic Flux per Unit Length"^^xsd:string .
qudt-quantity:MagnetizationField
rdf:type qudt:ElectricityAndMagnetismQuantityKind ;
rdfs:label "Magnetization Field"^^xsd:string ;
qudt:abbreviation "M"^^xsd:string ;
qudt:description "The Magnetization Field is defined as the ratio of magnetic moment per unit volume. It is a vector-valued quantity."^^xsd:string ;
qudt:generalization qudt-quantity:ElectricCurrentPerUnitLength ;
qudt:symbol "M"^^xsd:string .
qudt-quantity:MagnetomotiveForce
rdf:type qudt:ElectricityAndMagnetismQuantityKind ;
rdfs:label "Magnetomotive Force"^^xsd:string ;
qudt:description "Magnetomotive Force (mmf) is the ability of an electric circuit to produce magnetic flux. Just as the ability of a battery to produce electric current is called its electromotive force or emf, mmf is taken as the work required to move a unit magnet pole from any point through any path which links the electric circuit back the same point in the presence of the magnetic force produced by the electric current in the circuit."^^xsd:string ;
skos:exactMatch <http://dbpedia.org/resource/Magnetomotive_force> .
qudt-quantity:Mass
rdf:type qudt:MechanicsQuantityKind ;
rdfs:label "Mass"^^xsd:string ;
qudt:symbol "M"^^xsd:string ;
skos:exactMatch <http://dbpedia.org/resource/Mass> .
qudt-quantity:MassAmountOfSubstance
rdf:type qudt:ChemistryQuantityKind ;
rdfs:label "Mass Amount of Substance"^^xsd:string .
qudt-quantity:MassAmountOfSubstanceTemperature
rdf:type qudt:ChemistryQuantityKind ;
rdfs:label "Mass Amount of Substance Temperature"^^xsd:string .
qudt-quantity:MassPerArea
rdf:type qudt:MechanicsQuantityKind ;
rdfs:label "Mass per Area"^^xsd:string .
qudt-quantity:MassPerAreaTime
rdf:type qudt:MechanicsQuantityKind ;
rdfs:label "Mass per Area Time"^^xsd:string .
qudt-quantity:MassPerElectricCharge
rdf:type qudt:ElectricityAndMagnetismQuantityKind ;
rdfs:label "Mass per Electric Charge"^^xsd:string .
qudt-quantity:MassPerLength
rdf:type qudt:MechanicsQuantityKind ;
rdfs:label "Mass per Length"^^xsd:string .
qudt-quantity:MassPerTime
rdf:type qudt:MechanicsQuantityKind ;
rdfs:label "Mass per Time"^^xsd:string .
qudt-quantity:MassTemperature
rdf:type qudt:ThermodynamicsQuantityKind ;
rdfs:label "Mass Temperature"^^xsd:string .
qudt-quantity:MicrobialFormation
rdf:type qudt:BiologyQuantityKind ;
rdfs:label "Microbial Formation"^^xsd:string .
qudt-quantity:MolarAngularMomentum
rdf:type qudt:MechanicsQuantityKind ;
rdfs:label "Molar Angular Momentum"^^xsd:string .
qudt-quantity:MolarEnergy
rdf:type qudt:ChemistryQuantityKind ;
rdfs:label "Molar Energy"^^xsd:string ;
skos:closeMatch <http://dbpedia.org/resource/Energy> .
qudt-quantity:MolarHeatCapacity
rdf:type qudt:ThermodynamicsQuantityKind ;
rdfs:label "Molar Heat Capacity"^^xsd:string ;
skos:closeMatch <http://dbpedia.org/resource/Specific_heat_capacity> .
qudt-quantity:MolarMass
rdf:type qudt:ChemistryQuantityKind ;
rdfs:label "Molar Mass"^^xsd:string ;
skos:exactMatch <http://dbpedia.org/resource/Molar_mass> .
qudt-quantity:MolarVolume
rdf:type qudt:ChemistryQuantityKind ;
rdfs:label "Molar Volume"^^xsd:string ;
qudt:symbol "V_m"^^xsd:string ;
skos:exactMatch <http://dbpedia.org/resource/Molar_volume> .
qudt-quantity:MoleFraction
rdf:type qudt:ChemistryQuantityKind ;
rdfs:label "Mole Fraction"^^xsd:string ;
qudt:description "In chemistry, the mole fraction of a component in a mixture is the relative proportion of molecules belonging to the component to those in the mixture, by number of molecules. It is one way of measuring concentration."^^xsd:string ;
qudt:generalization qudt-quantity:DimensionlessRatio ;
skos:exactMatch <http://dbpedia.org/resource/Mole_fraction> .
qudt-quantity:MolecularMass
rdf:type qudt:ChemistryQuantityKind ;
rdfs:label "Molecular Mass"^^xsd:string ;
qudt:description "The molecular mass, or molecular weight of a chemical compound is the mass of one molecule of that compound, relative to the unified atomic mass unit, u. Molecular mass should not be confused with molar mass, which is the mass of one mole of a substance."^^xsd:string ;
qudt:generalization qudt-quantity:Mass ;
qudt:symbol "M"^^xsd:string ;
skos:exactMatch <http://dbpedia.org/resource/Molecular_mass> .
qudt-quantity:MolecularViscosity
rdf:type qudt:FluidMechanicsQuantityKind ;
rdfs:label "Molecular Viscosity"^^xsd:string ;
qudt:generalization qudt-quantity:Viscosity .
qudt-quantity:MomentOfInertia
rdf:type qudt:MechanicsQuantityKind ;
rdfs:label "Moment of Inertia"^^xsd:string .
qudt-quantity:Momentum
rdf:type qudt:MechanicsQuantityKind ;
rdfs:label "Momentum"^^xsd:string ;
qudt:description """Quantity of motion. Linear momentum is the quantity obtained by multiplying the mass of a body by its linear speed. Angular momentum is the quantity obtained by multiplying the moment of inertia of a body by its angular speed.
The momentum of a system of particles is given by the sum of the momentums of the individual particles which make up the system or by the product of the total mass of the system and the velocity of the center of gravity of the system.
The momentum of a continuous medium is given by the integral of the velocity over the mass of the medium or by the product of the total mass of the medium and the velocity of the center of gravity of the medium."""^^xsd:string ;
skos:exactMatch <http://dbpedia.org/resource/Momentum> .
qudt-quantity:NumberDensity
rdf:type qudt:SpaceAndTimeQuantityKind ;
rdfs:label "Number Density"^^xsd:string ;
qudt:description "In physics, astronomy, and chemistry, number density (symbol: n) is a kind of quantity used to describe the degree of concentration of countable objects (atoms, molecules, dust particles, galaxies, etc.) in the three-dimensional physical space."^^xsd:string ;
qudt:generalization qudt-quantity:InverseVolume ;
qudt:symbol "n"^^xsd:string ;
skos:exactMatch <http://dbpedia.org/resource/Number_density> .
qudt-quantity:Permeability
rdf:type qudt:ElectricityAndMagnetismQuantityKind ;
rdfs:label "Permeability"^^xsd:string ;
qudt:description "Permeability is the degree of magnetization of a material that responds linearly to an applied magnetic field. In general permeability is a tensor-valued quantity."^^xsd:string ;
qudt:symbol "μ"^^xsd:string ;
skos:exactMatch <http://dbpedia.org/resource/Permeability> .
qudt-quantity:Permittivity
rdf:type qudt:ElectricityAndMagnetismQuantityKind ;
rdfs:label "Permittivity"^^xsd:string ;
qudt:description "Permittivity is a physical quantity that describes how an electric field affects, and is affected by a dielectric medium, and is determined by the ability of a material to polarize in response to the field, and thereby reduce the total electric field inside the material. Permittivity is often a scalar valued quantity, however in the general case it is tensor-valued."^^xsd:string ;
qudt:symbol "ε"^^xsd:string ;