Jeffrey J. Siirola, Eastman Research Division, Eastman Chemical Company, PO Box 1972, 200 South Wilcox Drive, Kingsport, TN 37662-5150, Warren D. Seider, Chemical and Biomolecular Engineering, University of Pennsylvania, Philadelphia, PA 19104, Edward L. Cussler, Chemical Engineering and Materials Science, University of Minnesota, 151 Amundson Hall, 421 Washington Ave. SE, Minneapolis, MN 55455, Jonathan M. Vinson, Aspen Technology, 200 Wheeler Rd, Burlington, MA 01803, Lorenz T. Biegler, Chemical Engineering, Carnegie Mellon University, 5000 Forbes Ave, Pittsburgh, PA 15213, Richard Turton, Chemical Engineering, West Virginia University, 453 Engineering Sc. Building, P.O. Box 6102, Morgantown, WV 26506, and Gavin P. Towler, UOP, 25 E Algonquin Rd, Des Plaines, IL 60017-5017.