1. Department of Mechanical Engineering, Aichi Institute of Technology, Yachigusa, Yagusa-cho, Toyota, 470-03 Japan
2. Department of Mechanical Engineering, Nagoya University, Furo-cho, Chikusa-ku, Nagoya, 464 Japan
3. Chiyoda Chemical Engineering & Construction Co., Ltd., Tsurumi-cho, Tsurumi-ku, 230 Japan