http://www.che.com Chemical Engineering en-us 2008 Sun, 20 Jul 2008 19:39:51 EDT For a pdf of this article, which includes all graphics, equations and tables, click here. Separation by a membrane is achieved by creating a boundary between different bulk gas or liquid... http://www.che.com/facts/3722.html Sat, 15 Mar 2008 0:00:00 EDT For a pdf of this article, which includes all graphics, equations and tables, click here. The failure of a device or of a group of components can lead to overpressurization and subsequent... http://www.che.com/facts/3671.html Fri, 15 Feb 2008 0:00:00 EST For a pdf of this article, which includes all graphics, equations and tables, click here. Seals are assemblies of elements that prevent the passage of a solid, liquid, gas or vapor from one... http://www.che.com/facts/3552.html Sat, 15 Dec 2007 0:00:00 EST