Technical Advisor on the AFOSR Summer Research Faculty Program with the Air Force Materials Laboratory
Scientific Advisor, National Research Council Resident Associateship Program
Member, NSF Research Initiation Grant Review Committee
Member, Organizing Committee, The 4th Int. Conf. on Mechanical Behavior of Materials, Sweden
Chairman, ASTM Symposium on Composite Materials: Fatigue and Fracture, Dallas
Member, National Materials Advisory Board Committee on Application of Nonmetallic Materials to Guns and Gun Tubes, National Research Council
Member, Steering Committee, Int. Symp. on Composite Materials and Structures, China
Member, Russian Fracture Mechanics Review Panel, Science Applications International Corp.
Expert Consultant for China, United Nations Development Programme
Member, Advanced Submarine Technology Program Composite Materials Planning Committee, DARPA
Expert Consultant for Korea, United Nations Development Programme
Member, Review Committee, National Science Foundation/EPSCOR Annual Review, University of Southern Mississippi
Member, Committee for the Assessment of Research Needs for Wind Turbine Rotor Materials, National Academy of Sciences
Member, Scientific Advisory Board, Swedish Institute of Composites 
Member, Review Committee, NSF Engineering Research Center for Offshore Technology, Texas A & M University
Member, NDE and Damage Tolerance Workshop, National Conference on the Use of Composite Materials in Load Bearing Marine Structures, Arlington, VA
Member, NSF Research Initiation Grant Review Committee
General Chairman, 7th Technical Conference of the American Society for Composites
Member, Review Committee, NSF Engineering Research Center for Offshore Technology, Univ. of Texas, Austin
Member, Technical Advisory Board, Army Research Laboratory
Member, DoE Integrated Manufacturing Pre-Doctoral Fellowship Evaluation Panel, Department of Energy
Member, Review Committee, NSF Engineering Research Center for Offshore Technology, Texas A&M University
Member, DoE Integrated Manufacturing Pre-Doctoral Fellowship Evaluation Panel, Department of Energy
Member, Review Committee, NSF Engineering Research Center for Offshore Technology Center, Texas A&M University
Member, Local Organizing Committee, 10th American Society for Composites Technical Conference
Organizer, Short Course Series on Integrated Manufacturing Engineering for Advanced Transportation Systems
Organizer, Short Course Series on Integrated Manufacturing Engineering for Advanced Transportation Systems
Member, DoE Integrated Manufacturing Pre-Doctoral Fellowship Evaluation Panel, Department of Energy
Member, Review Committee, NSF Engineering Research Center for Offshore Technology Center, Texas A&M University
Member, AFOSR Proposal Review Panel, National Research Council
Member, Technical Advisory Committee, CALSTART
Member, NSF STC Pre-proposal Review Panel
Member, Presidential Committee, CIMTEC'98
Member, NSF Digital Library Proposal Review Panel
Organizer and Co-Chair, Korea-U.S. Workshop on Composites, Seoul, Korea
Technical Program Chair, Korea-U.S. Conference on Strategic Technologies, Vienna, VA
Member, Board of Advisors, Airworthiness Assurance Center of Excellence
Member, Advisory Committee, Accreditation Board for Engineering Education in Korea
Member, Overseas Advisory Board, Brain Korea 21 Program 
Co-Chair, Symposium on Composites for the Next Millennium, Tours, France
General Chair, U.S.-Korea Conference on Science, Technology, Entrepreneurship, and Leadership, UCLA, CA
Member, Executive Committee, Korea-U.S. Science Cooperation Center 
Member, Industrial and Professional Advisory Council, College of Eng., Penn State Univ.   
Member, Joint Planning Council, The Composites Consortium 
Co-Chair, Organizing Committee, U.S.-Korea Workshop on Nanostructured Materials and Nanomanufacturing, Seoul, Korea
Co-Chair, 14th International Conference on Composite Materials, San Diego, CA
Co-Chair, 2nd US-Korea Workshop on Nanostructured Materials and Nanomanufacturing, Caltech.
Member, NSF STC Preproposal Evaluation Panel
Member, AF Science Advisory Board Review Panel for AFRL/ML Directorate
Member, NSF DMI Division Proposal Evaluation Panel
Co-Chair, 3rd US-Korea Workshop on Nanostructured Materials and Nanomanufacturing & 1st US-Korea Workshop on Nanoelectronics, Hanyang University, Seoul, Korea.
Honorary Co-Chair, 4th US-Korea Workshop on Nanostructured Materials and Nanomanufacturing & 1st US-Korea Workshop on Nanoelectronics, Hanyang University, Seoul, Korea.
Member, NSF NSEC Review Panel, Northeastern Univ.
Member,NRL Structural Materials Program Review Panel
Member,Program Review Panel, Aerospace Corp.

1975

1978                    

1983
1983

1984

1984 - 1987

1986

1986 - 1987             

1987
1988  

1988
1989

1989 - 1990

1989 - 1991

1990
1990


1991
1992

1993

1993 - 1995
1994 - 1995

1994

1995

1995

1995

Jan. 1995

June 1995

1996

1996

1996 - 1997
1996 - 1998
1998
1998
Sept. 1998
Sept. 1998

Sept. 1998

1999 - 2000
1999 - 2000

1999 - 2000
July 1999

Aug 1999

1999 - 2001
2001 - 2004

July 2002
July 2003

July. 2003

Aug. 2003

Sept. 2003
Oct. 2003

Jan. 2004
May 2004


April 2005


June 2005
June 2005
Aug. 2005
 

1978
1984
1985