Affiliation: | 1. Department of Mechanical Engineering, Oita National College of Technology, Maki 1666, Oita 870-0152, Japan;2. National Research Institute of Fire and Disaster, 4-35-3, Shindaiji Higashi, Chofu, Tokyo 182-8508, Japan;3. Department of Intelligent Machine and System Engineering, Hirosaki University, 3 Bunkyo-cho, Hirosaki, Aomori 036-8561, Japan |