1. Department of Mathematics and Physics, Luoyang Institute of Science and Technology 1 , Luoyang 471023, People’s Republic of China
2. School of Computer and Information Engineering, Luoyang Institute of Science and Technology 2 , Luoyang 471023, People’s Republic of China
3. School of Electrical Engineering and Automation, Luoyang Institute of Science and Technology 3 , Luoyang 471023, People’s Republic of China