1. Asst. Prof. of Civ. Engrg., Colorado State Univ., Fort Collins, Colo., USA
2. Assoc. Dean for Research and Prof. of Civ. Engrg., Colorado State Univ., Fort Collins, Colo., USA
3. Assoc. Prof. of Civ. Engrg., Colorado State Univ., Fort Collins, Colo., USA