1. DII-Department of Information Engineering
2. Department of Electronic Engineering
3. Università Politecnica della Marche
4. Ancona I-60131
5. Italy
6. Research Institute for Interdisciplinary Science
7. Okayama University
8. Okayama 700-8530
9. Japan
10. Department of Chemistry, Okayama University
11. Department of Nanotechnology and Sustainable Energy
12. Kwansei Gakuin University
13. Sanda 669-1337