About: http://webisa.webdatacommons.org/34136780

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	Further, measuring the amplitude of a head in a storage device, such as a disk drive, is difficult because factors such as temperature change, head wear, etc. adversely affect the accuracy of readback signal amplitude estimates.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com