a data processing means connected to the source, the plurality of power control means and the temperature sensing means for controlling the amount of heating in {HEAD ~ accordance} with {TAIL ~ a desired heating pattern} 
with
a data processing means connected to the source , the plurality of power control means and the temperature sensing means for controlling the amount of heating in { HEAD ~ accordance } with { TAIL ~ a desired heating pattern }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL