1. PhD, Assistant Professor, Dept. of Environmental and Civil Engineering, Texas A&M Univ., 700 University Blvd., Kingsville, TX 78363.
2. PhD, Associate Professor, 1212 NCEL, Dept. of Civil Engineering, Univ. of Illinois at Urbana–Champaign, 205 North Mathews Ave., Urbana, IL 61801.