Generating Inbred Mice. Inbred Strains. A strain is defined as inbred when it has been mated brother x sister for 20 or more consecutive generations (F20). All offspring can be traced back to a single ancestral breeding pair in the 20th or subsequent generation.
suction head. The energy per unit weight of fluid on the suction side of a pump. 1  Facebook.
Suction Head, Cavitation, and Submersible Pumps. By Darren E. Meyers, P.E. Perhaps one of the strangest concepts for pump industry professionals to understand is Net Positive Suction Head (NPSH). Even the phrase itself is clunky and difficult to decipher. For many of the most common pumping applications in the world - those involving submersible pumps - NPSH is a non-issue completely.