This HTML5 document contains 21 embedded RDF statements represented using HTML+Microdata notation.

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Namespace Prefixes

Prefix	IRI
n2	http://qudt.org/vocab/quantitykind/
n4	http://qudt.org/vocab/unit/
n3	http://qudt.org/schema/qudt/
skos	http://www.w3.org/2004/02/skos/core#
rdfs	http://www.w3.org/2000/01/rdf-schema#
n5	http://qudt.org/vocab/dimensionvector/
n8	http://qudt.org/2.1/vocab/
rdf	http://www.w3.org/1999/02/22-rdf-syntax-ns#
xsdh	http://www.w3.org/2001/XMLSchema#

Statements

Subject Item

n2:Exposure

rdf:type

n3:QuantityKind

rdfs:label

Exposure

rdfs:isDefinedBy

n8:quantitykind

skos:broader

n2:ElectricChargePerMass

n3:applicableUnit

n4:MegaHZ-PER-T n4:HZ-PER-T n4:KiloR n4:MilliC-PER-KiloGM n4:R n4:A-M2-PER-J-SEC n4:MilliR n4:PER-T-SEC n4:C-PER-KiloGM

n3:dbpediaMatch

http://dbpedia.org/resource/Exposure

n3:hasDimensionVector

n5:A0E1L0I0M-1H0T1D0

n3:informativeReference

http://en.wikipedia.org/wiki/Exposure_%28photography%29 http://hps.org/publicinformation/ate/faqs/gammaandexposure.html

n3:isoNormativeReference

http://www.iso.org/iso/catalogue_detail?csnumber=31895

n3:latexDefinition

For X-or gamma radiation, \(X = \frac{dQ}{dm}\), where \(dQ\) is the absolute value of the mean total electric charge of the ions of the same sign produced in dry air when all the electrons and positrons liberated or created by photons in an element of air are completely stopped in air, and \(dm\) is the mass of that element.

n3:plainTextDescription

"Exposure" reflects the extent of ionization events taking place when air is irradiated by ionizing photons (gamma radiation and/or x rays). In photography, exposure is the amount of light allowed to fall on each area unit of a photographic medium (photographic film or image sensor) during the process of taking a photograph. Exposure is measured in lux seconds, and can be computed from exposure value (EV) and scene luminance in a specified region.

n3:symbol

X