Background
Stephen was born in Pennsylvania, United States.
Stephen was born in Pennsylvania, United States.
Bachelor of Science in Chemical Engineering and Engineering and Public Policy, Carnegie-Mellon University, 1983. Doctor of Philosophy in Chemical Engineering, University Illinois, 1989.
Senior chemical engineer, Cray Research, Inc., Eagan, Minnesota, 1989-1993. Group leader Process Simulation, Cray Research, Inc., Eagan, Minnesota, since 1994. Consultant University of Illinois, Champaign, 1987.
Member American Institute of Chemical Engineers (co-chairman session 1991, member program committee since 1989, computer aided systems technical division director since 1992), Society Industrial and Applied Mathematics.