About: http://webisa.webdatacommons.org/23655770

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	Step a) may includes sequentially obtaining reference values of the output signal of the optical sensing element while relatively moving the scan bar including the optical sensing element over the shading calibration strip 12.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com