1. Advanced R & D Dept., R & D Center, Daihatsu Motor Co., LTD., Ryuo, Gamo, Shiga, Japan
2. Japan Atomic Energy Agency (JAEA/SPring-8), Sayo, Hyogo, Japan
3. Nagaoka University of Technology, Nagaoka, Niigata, Japan
4. Kwansei Gakuin University, Sanda, Hyogo, Japan