1. TOKUYAMA CORPORATION, Development Dept. Cement Business Div.(1-1, Mikage-cho, Shunan-shi, Yamaguchi 745-8648, Japan)
2. TOKUYAMA CORPORATION, Technical Section. Cement Manufacturing Dept.(4900-4, Nagisa-cho, Shunan-shi, Yamaguchi 745-8648, Japan)
3. DENKA CO., LTD., Technical Section. Inorganic Materials Dept. Omi Plant(2209 Oaza Omi, Itoigawa-shi, Niigata 949-0393, Japan)
4. SHIMANE UNIVERSITY, Science of Environmental Systems, Graduate School of Natural Science and Technology(1060, Nishikawatsu-cho, Matsue-shi, Shimane 690-8504, Japan)