About: http://webisa.webdatacommons.org/125133620

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	H(f)=1, for 0<f<(1?????)???fm H(f)=???{1+cos[(f???(1?????)???fm)/(2????????fm)]}, for (1?????)???fm<f<(1+??)???fm H(f)=0, for f>(1+??)???fm where ??(f)=k???f is the phase, and k is a constant.
http://www.w3.org/ns/prov#wasQuotedFrom	google.co.uk