1. Postdoc Fellow, Dept. of Civil and Environmental Engineering, North Dakota State Univ., Fargo, ND.
2. Graduate Student, Dept. of Mechanical Engineering, North Dakota State Univ., Fargo, ND.
3. Graduate Student, Dept. of Civil and Environmental Engineering, North Dakota State Univ., Fargo, ND.
4. Associate Professor, Dept. of Mechanical Engineering, North Dakota State Univ., Fargo, ND.