1. Research Assistant, Dept. of Civil and Architectural Engineering and Construction Management, Univ. of Cincinnati, Cincinnati, OH.
2. Assistant Professor, Dept. of Civil and Architectural Engineering and Construction Management, Univ. of Cincinnati, Cincinnati, OH.
3. Research Assistant, Dept. of Mechanical Engineering, Univ. of the District of Columbia, Washington, DC.
4. Research Assistant, Dept. of Civil Engineering, Univ. of the District of Columbia, Washington, DC.