About: http://webisa.webdatacommons.org/442848620

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	Such a foam layer may be an example of a ???gradient foam material??? having a gradient in the thickness direction pertaining to a material property such as pore size, openness of the pores, density, etc.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com