George D.Pfaffmann is (semiretired) vice president of technology for Ajax Magnethermic TOCCO, Inc., a developer, designer, and manufacturer of furnaces for induction heating and melting manufacturing systems and a contract heat-treating company. Mr. Pfaffmann has broad expertise in heat-treating process engineering. He has worked for TOCCO since 1952 through a number of mergers and consolidations. Previous positions that he held at the company include the following: director of TOCCO heat-treating operations, vice president of technology laboratory and service operations, vice president of international marketing and technology, and director of marketing and technical services. Mr. Pfaffmann is the author of numerous technical publications and the owner or co-owner of 29 U.S. patents. He has served in a number of professional associations, including the American Society of Mechanical Engineers, ASM International, the Society of Manufacturing Engineers, and the Society of Automotive Engineers. He is a fellow of ASM International.

Peter H.Pfromm is Cargill Fellow in Bioprocessing and associate professor in the Department of Chemical Engineering at Kansas State University. His expertise includes gaseous membrane separations, electrochemical separations, specialty separations, separation processes for closed-cycle manufacturing, paper recycling, and polymer science. Previously, Dr. Pfromm worked at the Institute for Paper Science and Technology, Membrane Research and Technology, Inc., and the Fraunhofer Institute for Interfacial Engineering and Biotechnology in Stuttgart, Germany. Dr. Pfromm is active in a number of professional societies, including the North American Membrane Society, the American Chemical Society, and the American Institute of Chemical Engineers, for which he has served as secretary of the Forest Products Division. He served on two previous NRC committees—the Committee on Materials Technologies for Process Industries and the Panel on Separation Technology for Industrial Recycling and Reuse. Dr. Pfromm is the co-owner of two U.S. patents and has published more than 30 peer-reviewed scientific articles.

William H.Plenge is founder and president of Potomac Services International, a consulting firm specializing in technology insertion, market development, and strategic planning. He spent 10 years at the American Concrete Institute where he served concurrently as managing director of the Strategic Development Council, a strategic forum for senior executives from 65 member organizations, and as director of Washington operations. His responsibilities included the following: creating and managing the concrete industry’s Strategic Development Council; organizing and facilitating the industry’s production of a 30-year vision document, a 30-year research and development master plan, and a strategic solution document for reducing technology acceptance times; establishing the Washington office; and co-authoring a $320 million proposal for the Focused Program Area for High-Performance Concrete of the National Institute of Standards and Technology’s Advanced Technology Program. Prior to that, he spent 21 years at Deere & Company, rising to the position of vice president of John Deere Technologies International and head of Deere’s Washington Technology Marketing Office.

Jeffrey J.Siirola (NAE) is Technology Fellow at Eastman Chemical Company. His research interests involve chemical process engineering and conceptual process design theory and application, including the synthesis of process flowsheet alternatives, process simulation, optimization, capital and operating cost estimation, waste minimization, resource conservation and recovery, technology assessment, and financial analysis. He has been involved in the development, implementation, and application of computer-aided chemical process synthesis methods and tools in both academic and industrial settings. Dr. Siirola has served on a number of NRC committees and boards, including the Board on Chemical Sciences and Technology, the Chemical Engineering Peer Committee, and the Committee on Challenges for the Chemical Sciences in the 21st Century. He is a member of the National Academy of Engineering.

T.S.Sudarshan is president and chief executive officer of Materials Modification, Inc. He is responsible for the management and technical development of innovative materials, processes, and techniques, and for the coordination of federally and industrially sponsored research programs within several industries,



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