Once the predetermined temperature has been reached, the shape memory material recovers its shape and in the process applies a stress that results in {HEAD ~ the creation} of {TAIL ~ a path} for the two substances to come in contact 
Once the predetermined temperature has been reached , the shape memory material recovers its shape and in the process applies a stress that results in { HEAD ~ the creation } of { TAIL ~ a path } for the two substances to come in contact
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 HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH