1. Formerly, Research Assistant, Purdue Univ., Civil Engineer, Bechtel Power Corporation, 5275 Westview Drive, Fredrick, MD 21703.
2. Associate Professor, School of Civil Engineering, Purdue Univ., 550 Stadium Mall Dr., West Lafayette, IN 47907-2051.
3. Professor, School of Civil Engineering, Purdue Univ., 550 Stadium Mall Dr., West Lafayette, IN 47907-2051.