1. Department of Mechatronics and Biomedical Engineering, Air University, Islamabad, Pakistan
2. Department of Mechatronics Engineering, National University of Sciences and Technology, Islamabad, Pakistan
3. Department of Mathematics and Natural Sciences, Gulf University for Science and Technology, Mishref Campus, Hawally, Kuwait
4. VC Office, Staffordshire University, Stoke-on-Trent, U.K.