@prefix rdf: . @prefix owl: . @prefix xsd: . @prefix rdfs: . a ; rdfs:isDefinedBy ; rdfs:label "Radiant Energy Density"@en ; "\"Radiant Energy Density\", or radiant power, is the radiant energy per unit volume."^^rdf:HTML ; ; ; "http://en.wikipedia.org/wiki/Radiant_energy_density"^^xsd:anyURI ; "http://www.iso.org/iso/catalogue_detail?csnumber=31892"^^xsd:anyURI ; "$w$, $\\rho = \\frac{dQ}{dV}$, where $dQ$ is the radiant energy in an elementary three-dimensional domain, and $dV$ is the volume."^^ ; "$w, \\rho$"^^ ; "\"Radiant Energy Density\", or radiant power, is the radiant energy per unit volume." .