1. Department of Physics, Hindustan College of Science and Technology, Farah, Mathura, India, Affiliated to Dr. A.P.J. Abdul Kalam Technical University, Lucknow, India
2. Department of Bio-industrial Mechatronics Engineering, National Chung Hsing University, Taichung, Taiwan
3. Faculty of Humanities and Natural Sciences, Presov University, Presov, Slovak Republic