1. Professor, Dept. of Civil and Environmental Engineering, Univ. of Massachusetts, Amherst, MA 01002.
2. Research Assistant, Dept. of Civil and Environmental Engineering, Univ. of Massachusetts, Amherst, MA 01002.
3. Postdoctoral Research Engineer, Dept. of Civil and Environmental Engineering, Univ. of Massachusetts, Amherst, MA 01002.