For a two-product distillation column (top and bottom product), there are typically five degrees of control freedom (control valves): 1  Reflux flow. 2  Top product flow. 3  Reboiler heat input flow.  Bottom product 1  flow. Pressure control valve (the specific location depends upon how the pressure is controlled).
What is that patch your coach is wearing? This weekend it is likely the coach of your favorite team - and the coach of the team he is competing against - will be wearing a patch on their shirt or jacket. College football coaches nationwide will join together this weekend in support of the Coach To Cure MD program, which will be held during games Saturday.
kgb answers Â» Sports Â» Football Â» What are the little bag looking things that some football players wear around their waist? The little bag that was around the waist of the football player is called Hand warmers.. These thermal hand warmers, makes you Feel Real Heat!. Tags: hand warmer, football players, waist, football. Sunday, February 05 2012.