Studying the intermittent stable theorem and the synchronization of a delayed fractional nonlinear system

In this paper, an intermittent synchronizing delayed fractional nonlinear system is studied. We propose a novel intermittent stable theorem for the delayed fractional system and derive a new synchronization criterion for delayed fractional systems by means of fractional stable theorem and the differential inequality method. Intermittent synchronizing fractional delayed Newton-Leipnik system is taken as an illustrative example and numerical simulation of this example is presented to show the feasibility and effectiveness of the proposed theorem.     

聚酰胺微胶囊的制备及其在处理低浓度含铬废水中的应用研究

如何处理低浓度的含铬废水一直是工业生产中亟待解决的问题之一 ,作者就这一问题进行了大量的基础研究 .首先采用界面缩聚法制备了聚酰胺微胶囊 ,将制得的微胶囊经表面处理后使其具有主动输送功能 ,具有这一特性的微胶囊可以高效、快速提取低浓度废水中的铬 .作者还讨论了微胶囊处理含铬废水的机理、提取速率 .实验证明 ,用微胶囊处理低浓度的含铬废水是行之有效的新技术