PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Examples are a very thin, flexible, uniform string between two fixed ends, air in a very thin cylindrical pipe or the infinite square well in quantum mechanics. (See waves and strings and pipes and harmonics for examples.) Second, oscillations in nonlinear systems are often periodic, and the spectrum of a periodic function (as we will see below) is an harmonic series.
http://www.w3.org/ns/prov#wasQuotedFrom
  • unsw.edu.au