What may happen for the doping concentration profile during epitaxy of a thin Si layer on a Si wafer? What consequence it may lead to?

Heat is added to a piston-cylinder device filled with 2 kg of air to raise its temperature 400 c from an initial temperature of t1 27 cand pressure of pi 1 mpa. the process is isobaric process. find a)-the final pressure p2 b)-the heat transfer to the air.

Have a greater impact on maintenance productivity than any other support group. (clo5) a)-the top management b)-inventory and purchasing c)-sub-contracting d)-cmms

Inadequate stores control is not an obstacle to effective work order system. (clo4) a)-true b)-false