1. Graduate
School of Engineering, Kyoto University, Katsura, Nishikyo-ku, Kyoto 615-8510, Japan
2. Structural
Materials Research Institute, National Institute of Advanced Industrial Science and Technology, 2266-98 Anagahora, Shimoshidami, Moriyama-ku, Nagoya 463-8560, Japan
3. Graduate
School of Life and Environmental Sciences, Kyoto Prefectural University, 1-5 Shimogamo
Hangicho, Kyoto 606-8522, Japan