1. Graduate Research Assistant, Dept. of Civil Engineering, Univ. of Kentucky, Lexington, KY.
2. Professor, Dept. of Civil Engineering, Univ. of Kentucky, Lexington, KY.
3. Professor, Dept. of Communication, Univ. of Kentucky, Lexington, KY.
4. Professor, Dept. of Civil Engineering, Colorado State Univ., Fort Collins, CO.