1. 1) Japan Meteorological Agency, “Intergovernmental Panel on Climate Change Third Assessment Report” (2001).
2. 2) The Institute of Energy Economics, Japan, “Ministry of Economy Trade and Industry/EDMC Estimate,” The Energy Conservation Center, Japan (2003) pp. 62-63 [in Japanese].
3. 3) Chikyu Ondanka Taisaku Suisin Honbu, “Outline for Promotion of Efforts to Prevent Grobal Warning” (2002) pp. 13-13 [in Japanese].
4. 4) The Ceramic Society of Japan, “Handbook of Ceramics (2nd Edition),” Gihodo Shuppan (2002) pp. 1601-1628 [in Japanese].
5. 5) Chen, P. L. and Chen, I. W., J. Am. Ceram. Soc., Vol. 80, pp. 637-645 (1997).