PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • The dimmer output voltage VDIM fluctuates during each period from a positive voltage to a negative voltage. (The positive and negative voltages are characterized with respect to a reference to a direct current (DC) voltage level, such as a neutral or common voltage reference.) The period of each voltage sine wave 202.0 through 202.N is the same as 1/frequency of Vline (FIG. 1), where N is an integ
http://www.w3.org/ns/prov#wasQuotedFrom
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