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.
NFL tells DeAngelo Williams he canât wear pink all year. For the NFL, putting pink on playersâ uniforms is part of outreach to women during Breast Cancer Awareness Month. For Steelers running back DeAngelo Williams, itâs more personal than that. Williams lost his mother to breast cancer, and he says he contacted NFL vice president of football operations Troy Vincent to seek permission to keep wearing pink on his uniform after October ends.