Experience Postdoctoral Researcher, Laboratory for Nuclear Science Massachusetts Institute of Technology (1990/07~1992/06)Researcher, Laboratory for Nuclear Sciecen, Massachusetts Institute of Technology (1992/07~1994/01)Assoc. Professor, NCU Dept. of Physics (1994/02~1999/07)Department Chairman, NCU Dept. of Physics (2002/9~2007/7)Acting Dean, NCU College of Science (2006~2007)Dean, NCU Office of International Affairs (2011~2013)