Work in progress

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  <rdf:Description rdf:about="http://qudt.org/vocab/quantitykind/LuminousFluxPerArea">
    <rdf:type rdf:resource="http://qudt.org/schema/qudt/QuantityKind"/>
    <j.1:description rdf:datatype="http://qudt.org/schema/qudt/LatexString">In photometry, illuminance is the total luminous flux incident on a surface, per unit area. It is a measure of how much the incident light illuminates the surface, wavelength-weighted by the luminosity function to correlate with human brightness perception. Similarly, luminous emittance is the luminous flux per unit area emitted from a surface. In SI derived units these are measured in $lux (lx)$ or $lumens per square metre$ ($cd \cdot m^{-2}$). In the CGS system, the unit of illuminance is the $phot$, which is equal to $10,000 lux$. The $foot-candle$ is a non-metric unit of illuminance that is used in photography.</j.1:description>
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    <j.0:applicableUnit rdf:resource="http://qudt.org/vocab/unit/LUX"/>
    <j.0:applicableUnit rdf:resource="http://qudt.org/vocab/unit/PHOT"/>
    <j.0:hasDimensionVector rdf:resource="http://qudt.org/vocab/dimensionvector/A0E0L-2I1M0H0T0D0"/>
    <j.0:informativeReference rdf:datatype="http://www.w3.org/2001/XMLSchema#anyURI">http://en.wikipedia.org/wiki/Illuminance</j.0:informativeReference>
    <rdfs:isDefinedBy rdf:resource="http://qudt.org/2.1/vocab/quantitykind"/>
    <rdfs:label xml:lang="en">Luminous Flux per Area</rdfs:label>
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@prefix rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#> .
@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> .
@prefix xsd: <http://www.w3.org/2001/XMLSchema#> .

<http://qudt.org/vocab/quantitykind/LuminousFluxPerArea>
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  <http://purl.org/dc/terms/description> "In photometry, illuminance is the total luminous flux incident on a surface, per unit area. It is a measure of how much the incident light illuminates the surface, wavelength-weighted by the luminosity function to correlate with human brightness perception. Similarly, luminous emittance is the luminous flux per unit area emitted from a surface. In SI derived units these are measured in $lux (lx)$ or $lumens per square metre$ ($cd \\cdot m^{-2}$). In the CGS system, the unit of illuminance is the $phot$, which is equal to $10,000 lux$. The $foot-candle$ is a non-metric unit of illuminance that is used in photography."^^<http://qudt.org/schema/qudt/LatexString> ;
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  <http://qudt.org/schema/qudt/informativeReference> "http://en.wikipedia.org/wiki/Illuminance"^^xsd:anyURI ;
  rdfs:isDefinedBy <http://qudt.org/2.1/vocab/quantitykind> ;
  rdfs:label "Luminous Flux per Area"@en ;
.

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    ,"description":"In photometry, illuminance is the total luminous flux incident on a surface, per unit area. It is a measure of how much the incident light illuminates the surface, wavelength-weighted by the luminosity function to correlate with human brightness perception. Similarly, luminous emittance is the luminous flux per unit area emitted from a surface. In SI derived units these are measured in $lux (lx)$ or $lumens per square metre$ ($cd \\cdot m^{-2}$). In the CGS system, the unit of illuminance is the $phot$, which is equal to $10,000 lux$. The $foot-candle$ is a non-metric unit of illuminance that is used in photography." 
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    ,"label":"Luminous Flux per Area" 
    ,"type":"qudt:QuantityKind" 
    ]}

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  "description" : "In photometry, illuminance is the total luminous flux incident on a surface, per unit area. It is a measure of how much the incident light illuminates the surface, wavelength-weighted by the luminosity function to correlate with human brightness perception. Similarly, luminous emittance is the luminous flux per unit area emitted from a surface. In SI derived units these are measured in $lux (lx)$ or $lumens per square metre$ ($cd \\cdot m^{-2}$). In the CGS system, the unit of illuminance is the $phot$, which is equal to $10,000 lux$. The $foot-candle$ is a non-metric unit of illuminance that is used in photography.",
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