1. Assoc. Prof. and Chmn., Dept. of Civ. Engrg., Univ. of Detroit, Detroit, Mich.; formerly, Research Assoc. Engr., Air Force Shock Tube Facility, Univ. of New Mexico, Albuquerque, N. Mex.
2. Staff Engr., Woodward-Clyde-Sherard and Associates, Oakland, Calif.; formerly, Asst. Prof., Indian Inst. of Tech., Kanpur, India