It should be appreciated, however, that {TAIL ~ simple variants} such as {HEAD ~ discretization} by truncation can de used without changing the overall solution process and architecture 
It should be appreciated , however , that { TAIL ~ simple variants } such as { HEAD ~ discretization } by truncation can de used without changing the overall solution process and architecture
OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH