Institution: | 1. Department of Oceanic Architecture and Engineering , College of Science and Technology, Nihon University , 7-24-1 Narashinodai, Funabashi-shi, Chiba, 274-8501, Japan kondo@ocean.cst.nihon-u.ac.jp;3. Ryoyu Systems Co. Ltd. , 2-19-13 Takanawa, Minato-ku, Tokyo, 108-0074, Japan |