Speaker May 16, 2002 — May 18, 2002 Washington, DC 2002 German-American Frontiers of Engineering Symposium
General Participant Oct 11, 2001 — Oct 13, 2001 Essen, Germany 2001 German-American Frontiers of Engineering Symposium
General Participant Sep 14, 2000 — Sep 16, 2000 Irvine, California 2000 US Frontiers of Engineering Symposium