<http://webisa.webdatacommons.org/259982903>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/259982903>	<http://www.w3.org/ns/prov#value>	"where k is an absorption coefficient, and is the density of absorber." .
<http://webisa.webdatacommons.org/prov/507604919>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/259982903> .
<http://webisa.webdatacommons.org/259982903>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<wordpress.com> .