1. Associate Professor, Dept. of Civil and Environmental Engineering, The Univ. of Alabama at Birmingham, Birmingham, AL 35294.
2. Senior Research Engineer, Air Force Research Laboratory, 139 Barnes Dr., Suite 2, Tyndall AFB, FL 32403.
3. Principal Engineer, Applied Research Associates, Inc., P.O. Box 40128, Tyndall AFB, FL 32403.
4. Research Assistant, Dept. of Civil and Environmental Engineering, The University of Alabama at Birmingham, Birmingham, AL 35294.