About: http://webisa.webdatacommons.org/147105693

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	That is, k???HTP=1/pc wherein k is a constant, HTP means helical twisting power, p is a pitch length of the helix, and c is the concentration of cholesteric liquid crystal added to nematic liquid crystal.
http://www.w3.org/ns/prov#wasQuotedFrom	google.fr