1. Department of General, Kobe City College of Technology, Kobe 651-2194, Japan
2. Department
of Chemistry, Faculty of Science, Assiut University, Assiut 71516, Egypt
3. Graduate
School of Information Science, Nagoya University, Nagoya 464-8601, Japan
4. Department of Chemistry, Graduate School of Science, Osaka City University, Osaka 558-8585, Japan