1. OITA UNIVERSITY, Graduate Student, Doctors Course of Environmental Engineering(700, Dannoharu, Oita-shi, Oita 870-1192, Japan)TAIHEIYO CEMENT CORPORATION
2. OITA UNIVERSITY, Department of Architectural Engineering, Faculty of Engineering(700, Dannoharu, Oita-shi, Oita 870-1192, Japan)
3. ZEROTECHNO Co., Ltd.(1-5-16, Suehiro-machi, Oita-shi, Oita 870-0027, Japan)