1. Ph.D. Candidate, Dept. of Civil, Architectural, and Environmental Engineering, Missouri Univ. of Science and Technology, Rolla, MO.
2. Assistant Professor, Dept. of Civil, Architectural, and Environmental Engineering, Missouri Univ. of Science and Technology, Rolla, MO.
3. Assistant Director, X-Ray Microanalysis Core Facility, Office of Research, and Research Assistant Professor, Dept. of Geological Sciences, Univ. of Missouri, Columbia, MO.