1. a Materials System Research Laboratory, Kanazawa Institute of Technology, Yatsukaho, Matto, Ishikawa 924-0838, Japan
2. b Materials System Research Laboratory, Kanazawa Institute of Technology, Yatsukaho, Matto, Ishikawa 924-0838, Japan
3. c Materials System Research Laboratory, Kanazawa Institute of Technology, Yatsukaho, Matto, Ishikawa 924-0838, Japan
4. d Civil and Environmental Engineering Department, University of California at Los Angeles, Los Angeles, CA 90095-1593, USA