1. Assistant Professor, Civil Engineering Dept., College of Engineering, California Baptist Univ., 8432 Magnolia Ave., Riverside, CA 92504; formerly Ph.D. Candidate and Research Assistant, Dept. of Civil and Environmental Engineering, Michigan Technological Univ., Houghton, MI 49931-1295.
2. Associate Professor, Dept. of Civil and Environmental Engineering, Michigan Technological Univ., 1400 Townsend Dr., Houghton, MI 49931-1295 (corresponding author).
3. Assistant Professor of Civil Engineering, Dept. of Civil Engineering, North Carolina A&T State Univ., 434 McNair Hall, 1601 E. Market St., Greensboro, NC 27411.
4. Graduate Research Assistant, Dept. of Civil Engineering, North Carolina A&T State Univ., 434 McNair Hall, 1601 E. Market St., Greensboro, NC 27411.
5. Postdoctoral Research Associate, Dept. of Physics, Michigan Technological Univ., 1400 Townsend Dr., Houghton, MI 49931-1295.
6. Professor, Dept. of Physics, Michigan Technological Univ., 1400 Townsend Dr., Houghton, MI 49931-1295.