1. Department of Engineering, Tokyo Metropolitan College of Industrial Technology, 8-17-1, Minami-senjyu, Arakawa-ku, Tokyo 113-0852, Japan
2. Department of Systems Integration, Yokohama National University, 79-5 Tokiwadai, Hodogaya, Yokohama 240-8501, Japan
3. Department of Aeronautics and Astronautics, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
4. Department of Advanced Energy, The University of Tokyo, 5-1-5, Kashiwanoha, Kashiwa 277-8561, Japan