About: http://webisa.webdatacommons.org/148436833

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	Here, n is a positive integer, ?? is the wavelength of an ultrasound, D is the whole size of an array transducer, and d is the size of one array element.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com