1. Nonlinear Science Center, School of Economics and Management, Shandong University of Science and Technology, Qingdao 266590, China
2. Nonlinear Dynamics and Chaos Group, School of Management, Tianjin University, Tianjin 300072, China
3. College of Mechanical and Electronic Engineering, Shandong University of Science and Technology, Qingdao 266590, China