STUDY ON A THREE DIMENSIONAL CHAOTIC SYSTEM

In this letter a new chaotic system is discussed. Some basic dynamic properties, such as symmetry, dissipation, continuous spectrum and chaotic behaviors of the butterfly attractor are studied. Furthermore, period-doubling bifurcations in a system with definite parameters has been investigated.     

对《全波带法》疑义的诠释

采用全波带法分析单缝衍射得出的一个似是而非的结论进行剖析。     

物理实验课程体系教学改革的初探

本文阐述了物理实验课程教学改革的构思和试点进展情况；改变了传统的实验课教学模式     

PURIFICATION OF FLAVONES OF GINKGO LEAVES BY ADSORPTION HZ-841 RESIN

The purification process of total flavones of ginkgo leaves by resin HZ-841 from ethanol extract was studied. First, the total flavone was extracted from the clef aired powder of ginkgo Lbiloba leaves. Effects of solvents and operation conditions were examined to get a relative high yield and purity in this step. The crude extract was further purified by resin HZ-841. Both adsorption and elution process were studied to obtain an optimized conditions, i.e., pH, flow rate, concentration. A yellow powder was obtained, of which 37.3% was flavones, obviously higher than the basic international standard of 24%.     

DECOMPOSITION OF BLACK LIQUOR BY ULTRASOUND PROCESS

1. INTRODUCTION Ultrasonic irradiation has been shown to be effective in the destruction of aqueous organic contaminants. In sonolysis, the liquid is irradiated with sound waves generated from an ultrasonic source. These sound waves create cavities due to oscillating pressures in the liquid medium. The dissolved gases and vapors in the bulk solution can diffuse into these cavities. The cavities increase in size and implode, generating temperature of about 5200…     

关于单圈图与无交双圈图的邻接矩阵的行列式

研究图的邻接矩阵的行列式主要是为了研究图的零特征值的重数，而零特征值的重数在化学分子结构图的稳定性问题中有广泛的应用．本文给出了单圈图及无交双圈图的邻接矩阵的行列式分类．     

关于“L—Fuzzy群同态与同构及其性质”一文的注记

文（１）给出了Ｌ－Ｆｕｚｚｙ群间的同态映射，满同态映射以及Ｌ－Ｆｕｚｚｙ群的Ｌ－正规子群等概念。本文指出以上三种定义的不合理性，并给出它们的合理性定义。     

浅谈塑料助剂应用技术

综述了不同助剂对POM和PVC性能的影响。同时对稀土热稳定剂及ACR加工助剂的作用机理作了初步介绍。     

R/W法在复杂自动机结构的动力参数影响规律研究中的应用

该文应用Ｒ／Ｗ法分阶段建立了无壳弹自动机结构的动力学方程，利用Ｒ／Ｗ法中的碰撞处理普遍公式来建立自动机各阶段之间的碰撞方程，通过数值计算和结果和结果分析，得出了自动机动力参数变化对武器三发点射工作性能的影响规律，为实物模型的研究提供了理论依据和数据参考。     

塞曼调制磁旋转光谱线型的研究

在研究塞曼调制磁旋转光谱线型的过程中，发现了入射光场的偏振特性地谱线型的影响，从而解释了实验中出现的各种线型，其中包括一些难以解释的除二次微分线型外的其它线型，并且在实验中，得到了理论分析一致的结果，为塞曼调制旋转光谱，激光光谱技术，光谱测量精度的进一步改善提供了参考依据。