About: http://webisa.webdatacommons.org/234631275

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	A pulse is a signal that begins from and ends at zero power, whereas an interval can be considered to be part of a pulse and thus, either begins or ends at zero power.
http://www.w3.org/ns/prov#wasQuotedFrom	google.fr