Dr. Liu Shu-Tang is a professor of College of Control Science and Engineering, Shandong University. His research areas include Spatial chaotic theory of nonlinear dynamical systems and its application, Qualitative theory and qualitative control of complex system, Control and applications of fractals. Dr. Wang Pei is a teacher of College of Electrical Engineering and Automation, Qilu University of Technology. Her research areas include Nonlinear dynamical systems, Control and applications of fractals.(For internal use only).