1. Faculty of Engineering, Toyama University, 3190 Gofuku, Toyama-shi, Toyama 930-8555, Japan
2. Promotion of Research and Science Division, Fuji Research Institute Corp., Takebashi Square, 2-3 Kandanishiki-cho, Chiyoda-ku, Tokyo 101-0054, Japan
3. Department of Mechanical Engineering, The Johns Hopkins University, 105 Latrobe Hall 3400, North Charles Street Baltimore, Maryland 21218, USA