About: http://webisa.webdatacommons.org/14585519

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	Where, however, it is desired to produce more heat in the workpiece and achieve less roughening, the DC polarity can be changed such that the electrode in the system is negative and the sheet or other workpiece is positive.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com