Positive terminal 214 and be coupled to a conductive element 216 and configured to transport {HEAD ~ the electrons} to {TAIL ~ a location} downstream of the electrodes 
to
Positive terminal 214 and be coupled to a conductive element 216 and configured to transport { HEAD ~ the electrons } to { TAIL ~ a location } downstream of the electrodes
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH