1. Member, Professor, Dept. of Civil and Environmental Engineering, Univ. of California, Irvine, CA 92697-2175.
2. Assistant Professor, Kunsan National Univ., Kunsan 573-701, Korea; formerly, Visiting Post-Doctoral Researcher, Univ. of California, Irvine, CA 92697-2175.
3. Research Assistant Professor, Smart Infra-Structure Technology Center, Korea Advanced Institute of Science and Technology, Daejeon 305-701, Korea; formerly, Visiting Post-Doctoral Researcher, Univ. of California, Irvine, CA 92697-2175.
4. Graduate Student, Dept. of Civil and Environmental Engineering, Univ. of California, Irvine, CA 92697-2175.