About: http://webisa.webdatacommons.org/132528800

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	The frequencies at which the power supplies operate are chosen based on considerations such as efficiency of operation, heating, and the like.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com