部分互溶体系的盐效应研究(I)

用实验测定了NaCl、KCl、KBr三种盐在正丁醇-水、丁酮-水共8个三元部分互溶体系的液液平衡数据, 采用加盐饱和密度法进行平衡两相组成的分析, 并用Chen模型进行了关联。     

单模激光驱动的超混沌系统的完全同步

利用主动-被动同步法实现了由单模激光驱动的超混沌系统的完全同步.根据稳定性理论,对系统进行了一般分解.以单模激光Lorenz系统和四维超混沌Chen系统为例,验证了这种方法的有效性.仿真模拟结果表明,这种同步方法是快速有效的.利用这种同步方法可以实现对任意高维混沌系统的混沌同步,具有一定的普适性.     

Controlling the Chen attractor using linear feedback based on parameter identification

In this paper we investigate the method for controlling the chaotic Chen system with unknown parameters using linear feedback functions based on parameter identification.The observer is applied to the identification of the unknown parameters of Chen system.Then an efficient feedback function is designed for controlling the Chen system.Numerical simulations are provided to show the effectiveness and feasibility of the developed controller.     

Adaptive synchronization of Rossler and Chen chaotic systems

A novel adaptive synchronization method is proposed for two identical Rossler and Chen systems with uncertain parameters. Based on Lyapunov stability theory, we derive an adaptive controller without the knowledge of the system parameters, which can make the states of two identical Rossler and Chen systems globally asymptotically synchronized. Especially, when some unknown uncertain parameters are positive, we can make the controller more simple and, besides, the controller is independent of those positive uncertain parameters. All results are proved using a well-known Lyapunov stability theorem. Numerical simulations are given to validate the proposed synchronization approach.