1. Chiyoda Engineering Consultants Co., Ltd., 3-3-7, Iidabashi, Chiyoda-ku, Tokyo 102-0072, Japan
2. Mechanical Engineering Department, Ashikaga Institute of Technology, 268-1, Omae-cho, Ashikaga-city, Tochigi 326-8558, Japan
3. Tokai University, Research Institute of Science and Technology, 1117, Kitakaname, Hiratsuka-city, Kanagawa 259-1292, Japan