1. Assistant Professor, Dept. of Civil and Mechanical Engineering, Purdue Univ. Fort Wayne, 2101 E Coliseum Blvd., Fort Wayne, IN 46805-1499 (corresponding author).
2. Graduate Research Assistant, Dept. of Civil and Architectural Engineering, Univ. of Wyoming, 1000 E. University Ave., Laramie, Wyoming 82071-3295.
3. Director, Wyoming Technology Transfer Center, 1000 E. University Ave., Laramie, WY 82071.