1. Department of Physics Bangabandhu Sheikh Mujibur Rahman Science and Technology University Gopalganj 8100 Bangladesh
2. School of Science Edith Cowan University Joondalup 6027 Perth Australia
3. School of Engineering and Technology Central Queensland University Australia Melbourne VIC 3000 Australia
4. Centre for Intelligent Systems School of Engineering and Technology Central Queensland University Brisbane QLD 4000 Australia
5. Department of Electrical Engineering Faculty of Engineering University of Malaya 50603 Kuala Lumpur Malaysia