@prefix isq: <https://w3id.org/standards/isq/ontologies/core/> .
@prefix smart: <https://example.org/smart-sdu/> .
@prefix rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#> .
@prefix dcterms: <http://purl.org/dc/terms/> .
@prefix skos: <http://www.w3.org/2004/02/skos/core#> .

<isq:t7-2.1>
  a isq:Entry ;
  rdf:type isq:Quantity ;
  rdf:type smart:TermEntry ;
  dcterms:identifier "7-2.1" ;
  skosxl:prefLabel "radiant energy <electromagnetism>"@en ;
  skosxl:altLabel "Q_\"e\""@en ;
  skosxl:altLabel "W"@en ;
  skosxl:altLabel "U"@en ;
  skosxl:altLabel "(Q)"@en ;
  skos:definition "energy (<<iso80000-5>>) emitted, transferred or received in form of electromagnetic waves"@en ;
  smart:hasBindingnessType "bindingness-type:normative" ;
  dcterms:isPartOf <isq:part-7> ;
  isq:hasUnit [
    skos:notation "J" ;
    skosxl:prefLabel "joule"@en
  ] ;
  isq:hasUnit [
    skos:notation "kg*m^2*s^(-2)" ;
    skosxl:prefLabel "kilogram square metre per second squared"@en
  ] ;
  skos:note "Radiant energy can be expressed by the time integral of radiant flux (<<t7-4.1>>), stem:[Phi_\"e\"], over a given duration (<<iso80000-3>>), stem:[Delta t]\n\n[stem%unnumbered]\n++++\nQ_\"e\" = int_(Delta t) Phi_\"e\" \"d\"t\n++++\n\nRadiant energy is expressed either as a function of wavelength (<<iso80000-3>>), stem:[lambda], as a function of frequency (<<iso80000-3>>), stem:[nu], or as a function of wavenumber, stem:[sigma]. (See also <<cls-0.1>>.)\n\nThe corresponding photometric quantity is \"luminous energy\" (<<t7-12>>). The corresponding quantity for photons is \"photon energy\" (<<t7-19.2>>).\n"@en ;
  iso:urn <urn:iso:std:iso:80000:-7:ed-2:en:item:7-2.1> .