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    <dc:description rdf:datatype="http://www.w3.org/2001/XMLSchema#string">A dimension vector is an association between a quantity kind and a rational number. The quantity kind serves as the basis vector in an abstract vector space, and the rational number is the vector magnitude. The abstract vector space is determined by the chosen set of base quantity kinds for a quantity system.</dc:description>
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    <vaem:description rdf:datatype="http://www.w3.org/2001/XMLSchema#string">QUDT, or the 'Quantity, Unit, Dimension and Types' ontology defines the base classes properties, and restrictions used for modeling physical quantities, units of measure, and their dimensions in various measurement systems. In physics and science, dimensional analysis is a tool to find or check relations among physical quantities by using their dimensions. The dimension of a physical quantity is the combination of the basic physical dimensions (usually mass, length, time, electric charge, and temperature) which describe it; for example, speed has the dimension length / time, and may be measured in meters per second, miles per hour, or other units.</vaem:description>
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    <dc:contributor rdf:datatype="http://www.w3.org/2001/XMLSchema#string">Ralph Hodgson</dc:contributor>
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    <vaem:hasDisciplineScope rdf:datatype="http://www.w3.org/2001/XMLSchema#string">All disciplines</vaem:hasDisciplineScope>
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    <dc:creator rdf:datatype="http://www.w3.org/2001/XMLSchema#string">James E. Masters</dc:creator>
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    <dc:contributor rdf:datatype="http://www.w3.org/2001/XMLSchema#string">David Price</dc:contributor>
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    <vaem:hasDomainScope rdf:datatype="http://www.w3.org/2001/XMLSchema#string">Science, Medicine and Engineering</vaem:hasDomainScope>
    <owl:versionInfo rdf:datatype="http://www.w3.org/2001/XMLSchema#string">$Id: OSG_dimension-(v1.1).ttl 4988 2011-06-01 20:34:19Z RalphHodgson $</owl:versionInfo>
    <vaem:usesNonImportedResource rdf:resource="http://purl.org/dc/elements/1.1/author"/>
    <dc:rights rdf:datatype="http://www.w3.org/2001/XMLSchema#string">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.</dc:rights>
    <dc:contributor rdf:datatype="http://www.w3.org/2001/XMLSchema#string">Irene Polikoff</dc:contributor>
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    <dc:subject rdf:datatype="http://www.w3.org/2001/XMLSchema#string">Quantities, Units, and Dimensions</dc:subject>
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    <dc:title rdf:datatype="http://www.w3.org/2001/XMLSchema#string">QUDT Dimension Ontology Version 1.1</dc:title>
    <vaem:hasAspectScope rdf:datatype="http://www.w3.org/2001/XMLSchema#string">Basic treatment of quantities and units. No dimensional treatment in this graph.</vaem:hasAspectScope>
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    <owl:versionIRI rdf:resource="http://qudt.org/1.1/schema/dimension"/>
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    <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Ontology"/>
    <vaem:intent rdf:datatype="http://www.w3.org/2001/XMLSchema#string">The intent of the QUDT Dimensions Ontology is to provide an OWL Schema for dimensional specificaiton and analysis of units of measure.</vaem:intent>
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  <rdf:Description rdf:about="http://qudt.org/schema/qudt#Dimension">
    <dc:description rdf:datatype="http://www.w3.org/2001/XMLSchema#string">A dimension is a relationship between a quantity system, a quantity kind of that system, and one or more dimension vectors. There is one dimension vector for each of the system's base quantity kinds. The vector's magnitude determines the exponent of the base dimension for the referenced quantity kind.</dc:description>
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