Affiliation: | 1. School of Materials Science, Japan, Advanced Institute of Science and Technology, 1–1 Asahidai, Nomi, Ishikawa 923‐1292 (Japan), Fax: (+81)?761‐51‐1525;2. School of Knowledge Science, Japan, Advanced Institute of Science and Technology, 1–1 Asahidai, Nomi, Ishikawa 923‐1292 (Japan);3. Graduate School of Engineering, Osaka City University, 3‐3‐138 Sugimoto, Sumiyoshi‐ku, Osaka 558‐8585 (Japan) |