About: http://webisa.webdatacommons.org/41899644

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	FIG. 21 shows mixing achieved by a device similar to that described above except using cavities (tubes) with nonuniform widths (as shown in the middle mask in FIG. 14.
http://www.w3.org/ns/prov#wasQuotedFrom	google.fr