1. Graduate Student, Dept. of Civil Engineering, Univ. of Ottawa, 161 Louis Pasteur St., Ottawa ON, Canada K1N 6N5.
2. Professor, Dept. of Civil Engineering, Univ. of Ottawa, 161 Louis Pasteur St., Ottawa ON, Canada K1N 6N5.
3. Professor Emeritus, Dept. of Chemical Engineering, Univ. of Ottawa, 161 Louis Pasteur St., Ottawa ON, Canada K1N 6N5.