1. Faculty of Science, Yibin University, Yibin 644000, Sichuan, P. R. China
2. Key Laboratory of Computational Physics of Sichuan Province, Yibin University, Yibin 644000, P. R. China
3. Department of Bionano Engineering, Hanyang University, Ansan 155-88, South Korea
4. Department of Mathematics and Statistics, Nanjing University of Information Science and Technology, Nanjing, P. R. China
5. Center of Research, Faculty of Engineering, Future University in Egypt, New Cairo, Egypt
6. Department of Mathematics, College of Science Al-Zulfi, Majmaah University, Al Majmaah 11952, Saudi Arabia