About: http://webisa.webdatacommons.org/166245091

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 excitation signal to be applied to a piezoelectric material to make it change volume is an electric field, for example induced between two electrodes located on each side of the piezoelectric material.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com