1. School of Science, University of Science and Technology Liaoning, Anshan, Liaoning, People's Republic of China
2. Department of Mathematics, School of Science, University of Science and Technology Liaoning, Anshan, Liaoning, People's Republic of China
3. Graduate School, University of Science and Technology Liaoning, Anshan, Liaoning, People's Republic of China
4. School of Electronic and Information Engineering, University of Science and Technology Liaoning, Anshan, Liaoning, People's Republic of China