1. Doctor of Engrg., Assoc. Prof., Int. Ctr. for Disaster-Mitigation Engrg., Inst. of Industrial Sci., Univ. of Tokyo, 4-6-1 Komaba, Meguro-Ku, Tokyo 153-8505, Japan.
2. PhD., Post-Doctorate Fellow, Inst. of Industrial Sci., Univ. of Tokyo, 4-6-1 Komaba, Meguro-Ku, Tokyo 153-8505, Japan.