1. Asst. Prof. of Civ. Engrg. Dept. of Civ. and Environmental Engrg. Rutgers Univ., New Brunswick, N.J.
2. Prof. of Civ. Engrg. Dept. of Materials Engrg., Univ. of Illinois at Chicago Circle, Chicago, Ill.
3. Assoc. Prof. of Struct. Design, Dept. of Materials Engrg., Univ. of Illinois at Chicago Circle, Chicago, Ill.