1. Research Engineer, C-CORE, Memorial Univ. of Newfoundland, St. John’s NL, Canada A1B 3X5.
2. Associate Professor, Civil and Environmental Engineering, Washington State Univ., Pullman, WA 99164-2910.
3. Professor, Dept. of Civil Engineering, Yokohama National Univ., 79-5 Tokiwadai, Hodogaya-ku, Yokohama 240-8501, Japan.