1. School of Mathematics and Statistics, Central South University, Changsha, People’s Republic of China
2. Department of Mathematics, Quaid-i-Azam University, Islamabad, Pakistan
3. Department of Mechanical Engineering, College of Engineering, Prince Sattam Bin Abdulaziz University, Wadi Alddawasir, Saudi Arabia
4. Production Engineering and Mechanical Design Department, Faculty of Engineering, Mansoura University, Mansoura, Egypt