1. Department of Mechanical Engineering, Sejong University, Seoul, Korea
2. Department of Theoretical Mechanics, Technical University of Iasi, Iasi, Romania
3. Department of Mathematics, College of Science and Humanities in Al-Kharj, Prince Sattam bin Abdulaziz University, Al-Kharj, Saudi Arabia
4. Department of Basic Engineering Science, Faculty of Engineering, Menoufia University, Shebin El-Kom, Egypt