Upon actuation, {HEAD ~ the components} typically heat {TAIL ~ a portion} of the microfluidic network and sense a temperature thereof 
Upon actuation , { HEAD ~ the components } typically heat { TAIL ~ a portion } of the microfluidic network and sense a temperature thereof
OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH