1. Department of Mechanical System Engineering, The University of Hyogo, 2167 Shohsa, Himeji, Hyogo 671-2201, Japan, Research Center for Material Cycles and Waste Management, National Institute for Environmental Studies, 16-2 Onogawa, Tsukuba, Ibaraki 305-8506, Japan, Kyoto City Office, Teramachi-Oike, Nakagyo-ku, Kyoto-city, Kyoto, Japan, and Environment Preservation Center, Kyoto University, Yoshida-Honmachi, Sakyo-ku, Kyoto 606-8501, Japan