1. Professor, Dept. of Mechanical and Aerospace Engineering, West Virginia Univ., Morgantown, WV 26506.
2. Civil Engineer, McClier Corp., 401 East Illinois St., Chicago, IL 60611.
3. Associate Professor, Dept. of Mechanical and Aerospace, West Virginia Univ., Morgantown, WV 26506.
4. Assistant Professor, Dept. of Civil and Environmental Engineering, West Virginia Univ., Morgantown, WV 26506.