1. Associate Professor, Dept. of Civil and Environmental Engineering, California Institute of Telecommunications and Information Technology, Univ. of California, Irvine, CA 92697-2175.
2. Assistant Professor, Dept. of Electrical and Computer Engineering, Univ. of California, Irvine, CA 92697-2175.
3. Research Associate, Dept. of Civil and Environmental Engineering, California Institute of Telecommunications and Information Technology, Univ. of California, Irvine, CA 92697-2175.