1. Graduate School of Environmental Science, Hokkaido University, Sapporo, Japan
2. Electrical and Instrumentation Engineering Department, Sant Longowal Institute of Engineering and Technology, Longowal, Punjab, India
3. Division of Information Systems, The University of Aizu, Aizuwakamatsu, Fukushima, Japan
4. Graduate School of Sciences and Technology for Innovation, Yamaguchi University, Ube, Yamaguchi, Japan