1. Postdoctoral Fellow, Univ. of Waterloo, Ontario, Canada; formerly, Assoc. Prof. of Civ. Engrg., Nagoya Inst. of Tech., Nagoya, Japan
2. NRC Research Fellow, Dept. of Civ. Engrg., Univ. of Waterloo, Ontario, Canada
3. Prof., Dept. of Civ. Engrg., Univ. of Waterloo, Ontario, Canada