1. Assistant Professor of Instruction and Researcher, Center for Underground Infrastructure Research and Education, Dept. of Civil Engineering, Univ. of Texas at Arlington, Arlington, TX.
2. Professor and Director, Center for Underground Infrastructure Research and Education, Dept. of Civil Engineering, Univ. of Texas at Arlington, Arlington, TX.
3. Postdoctoral Research Associate, Center for Underground Infrastructure Research and Education, Dept. of Civil Engineering, Univ. of Texas at Arlington, Arlington, TX.
4. Ph.D. Student, Center for Underground Infrastructure Research and Education, Dept. of Civil Engineering, Univ. of Texas at Arlington, Arlington, TX.