1. Assistant Professor, Dept. of Civil, Construction and Environmental Engineering, Iowa State Univ., 394 Town Engineering Bldg., Ames, IA 50011 (corresponding author).
2. Postdoctoral Research Associate, Dept. of Civil, Construction and Environmental Engineering, Iowa State Univ., 394 Town Engineering Bldg., Ames, IA 50011.
3. Professor, Dept. of Civil, Construction and Environmental Engineering, Iowa State Univ., 394 Town Engineering Bldg., Ames, IA 50011.
4. Associate Professor, Dept. of Chemical and Biological Engineering, Iowa State Univ., 1035 Sweeney, Ames, IA 50011.