1. Division of Mechanical and Space Engineering, Hokkaido University, Kita 13, Nishi 8, Kita-ku, Sapporo 060-8628, Japan
2. National Maritime Research Institute, 6-38-1 Shinkawa, Mitaka, Tokyo 181-0004, Japan
3. JXTG Nippon Oil & Energy Corporation, 8 Chidoricho, Naka-ku, Yokohama, Kanagawa 231-0815, Japan
4. College of Industrial Technology, Nihon University, 1-2-1 Izumi-cho, Narashino, Chiba 275-8575, Japan