@prefix afn: . @prefix arg: . @prefix constant: . @prefix corpus: . @prefix corpusprojects: . @prefix creativecommons: . @prefix crosswalkprojects: . @prefix dash: . @prefix datagraph: . @prefix datatype: . @prefix dc: . @prefix dcam: . @prefix dct: . @prefix dcterms: . @prefix dtype: . @prefix edg: . @prefix edg.v: . @prefix fn: . @prefix foaf: . @prefix functions: . @prefix geo: . @prefix graphql: . @prefix html: . @prefix mc: . @prefix metadata: . @prefix metash: . @prefix nist: . @prefix oecc: . @prefix ontologyprojects: . @prefix org: . @prefix owl: . @prefix prefix: . @prefix prov: . @prefix qkdv: . @prefix quantity: . @prefix quantitykind: . @prefix qudt: . @prefix qudt.type: . @prefix qudt_ads_services: . @prefix qudt_owl_schema: . @prefix raci: . @prefix rdf: . @prefix rdfs: . @prefix rdm: . @prefix rdmfact: . @prefix rdmprojects: . @prefix s3: . @prefix search: . @prefix sh: . @prefix si-constant: . @prefix si-prefix: . @prefix si-quantity: . @prefix si-unit: . @prefix sioc: . @prefix skos: . @prefix skosshapes: . @prefix skosxl: . @prefix smf: . @prefix softwareprojects: . @prefix soqk: . @prefix sou: . @prefix sp: . @prefix sparql: . @prefix spif: . @prefix spin: . @prefix spl: . @prefix spr: . @prefix swa: . @prefix swash: . @prefix taggerprojects: . @prefix taxonomies: . @prefix teamwork: . @prefix teamworkconstraints: . @prefix tosh: . @prefix ui: . @prefix unit: . @prefix vaem: . @prefix voag: . @prefix vs: . @prefix wot: . @prefix xsd: . qudt:SystemOfQuantityKinds rdf:type rdfs:Class ; rdf:type owl:Class ; rdf:type sh:NodeShape ; rdfs:comment "A system of quantity kinds is a set of one or more quantity kinds together with a set of zero or more algebraic equations that define relationships between quantity kinds in the set. In the physical sciences, the equations relating quantity kinds are typically physical laws and definitional relations, and constants of proportionality. Examples include Newton’s First Law of Motion, Coulomb’s Law, and the definition of velocity as the instantaneous change in position. In almost all cases, the system identifies a subset of base quantity kinds. The base set is chosen so that all other quantity kinds of interest can be derived from the base quantity kinds and the algebraic equations. If the unit system is explicitly associated with a quantity kind system, then the unit system must define at least one unit for each quantity kind. From a scientific point of view, the division of quantities into base quantities and derived quantities is a matter of convention."^^rdf:HTML ; rdfs:isDefinedBy ; rdfs:isDefinedBy ; rdfs:label "System of Quantity Kinds" ; rdfs:subClassOf qudt:Concept ; rdfs:subClassOf qudt:Verifiable ; rdfs:subClassOf [ rdf:type owl:Restriction ; owl:allValuesFrom qudt:Enumeration ; owl:onProperty qudt:baseDimensionEnumeration ; ] ; rdfs:subClassOf [ rdf:type owl:Restriction ; owl:allValuesFrom qudt:QuantityKind ; owl:onProperty qudt:hasBaseQuantityKind ; ] ; rdfs:subClassOf [ rdf:type owl:Restriction ; owl:allValuesFrom qudt:QuantityKind ; owl:onProperty qudt:hasQuantityKind ; ] ; rdfs:subClassOf [ rdf:type owl:Restriction ; owl:allValuesFrom qudt:QuantityKind ; owl:onProperty qudt:systemDerivedQuantityKind ; ] ; rdfs:subClassOf [ rdf:type owl:Restriction ; owl:allValuesFrom qudt:SystemOfUnits ; owl:onProperty qudt:hasUnitSystem ; ] ; rdfs:subClassOf [ rdf:type owl:Restriction ; owl:maxCardinality "1"^^xsd:int ; owl:onProperty qudt:baseDimensionEnumeration ; ] ; rdfs:subClassOf [ rdf:type owl:Restriction ; owl:minCardinality "0"^^xsd:nonNegativeInteger ; owl:onProperty qudt:hasQuantityKind ; ] ; sh:property qudt:SystemOfQuantityKinds-baseDimensionEnumeration ; sh:property qudt:SystemOfQuantityKinds-hasBaseQuantityKind ; sh:property qudt:SystemOfQuantityKinds-hasQuantityKind ; sh:property qudt:SystemOfQuantityKinds-hasUnitSystem ; sh:property qudt:SystemOfQuantityKinds-qudt_baseDimensionEnumeration ; sh:property qudt:SystemOfQuantityKinds-qudt_hasQuantityKind ; sh:property qudt:SystemOfQuantityKinds-qudt_hasUnitSystem ; sh:property qudt:SystemOfQuantityKinds-systemDerivedQuantityKind ; sh:property [] ; .