1. Projects Development Dep., The Japan Atomic Power Company, 1-1 Kanda Mitoshirocho, Chiyoda-ku, Tokyo 101-0053, Japan
2. Nuclear Projects Div., Shimizu Corporation, 2-16-1 Kyobashi, Chuo-ku, Tokyo 104-8370, Japan
3. Institute of Technology, Shimizu Corporation, 3-4-17 Etchujima, Koto-ku, Tokyo 135-8530, Japan
4. Ohsaki Research Institute, Inc., 2-2-2 Uchisaiwai-cho, Chiyoda-ku, Tokyo 100-0011, Japan