About: http://webisa.webdatacommons.org/382025753

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 nf is the highest refractive index in the center core region 11 a, ns is the lowest refractive index in the low refractive-index core region 11 b, and n0 is a refractive index of the cladding region 11 c.
http://www.w3.org/ns/prov#wasQuotedFrom	google.co.uk