1. Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu, People's Republic of China
2. Faculty of Mechanical and Industrial Eng., Quchan University of Technology, Quchan, Iran
3. Department of Mathematics, University of Ilorin, Ilorin, Nigeria
4. Mechanical Power Engineering Department, Faculty of Engineering, Mansoura University, Mansoura, Egypt
5. Department of Mathematics, Ahmadu Bello University, Zaria, Nigeria
6. Faculty of Mechanical and Industrial Engineering, Quchan University of Technology, Quchan, Iran