Project

National Physical Laboratory (NPL, UK),1990.4.1-1991.3.31, Investigator
KRF (Korea Research Foundation), 1991.10.1-1992.9.30, Principal Investigator
1992.3.1-1993.2.28, Principal Investigator
Korea Research Foundation,1992.9.1-1993.8.31, Principal
1993.12-1994.12, Principal Investigator for Detailed Research Project