1. Ph.D. Student, Zachry Dept. of Civil and Environmental Engineering, Texas A&M Univ., College Station, TX.
2. Assistant Professor, Dept. of Civil and Environmental Engineering, Univ. of Delaware, Newark, DE.
3. Associate Research Scientist, Zachry Dept. of Civil and Environmental Engineering, Texas A&M Univ., College Station, TX.
4. A. P. and Florence Wiley Chair Professor, Zachry Dept. of Civil and Environmental Engineering, Texas A&M Univ., College Station, TX.