1. Institute of Liberal Arts and Sciences, Toyohashi University of Technology, Toyohashi, Aichi, 441-8580, Japan
2. Department of Electrical and Electronic Information Engineering, Toyohashi University of Technology, Toyohashi, Aichi, 441-8580, Japan
3. School of Materials and Mineral Resources, Universiti Sains Malaysia, Nibong Tebal, Penang, 14300, Malaysia