Studies of Several Systems with Air Electrode Electro-Synthesizing H2O2 on the Spot for Degrading Aniline in Aqueous

A gas diffusion electrode (air electrode) with a high current efficiency of electro-synthesizing H2O2 using O2 in air was prepared. The several systems with air electrode as cathode of electro-synthesizing H2O2 on the reaction spot for degrading aniline in aqueous--electro-Fenton system, photo-excitation electro-H2O2 system and photo-electro-Fenton system, were developed. The rates of decomposition of H2O2 and mineralization of aniline were experimentally measured respectively under different conditions, and the results indicated there has an excellent parallel relation between decomposition rate of H2O2 and mineralization rate of aniline. Especially, photo-electro-Fenton system, where H2O2 is decomposed the fastest, is the best system of oxidizing and degrading organic toxicants. Compared photo-electro-Fenton system with photo-Fenton system, important role is revealed in the interface of air electrode. In this paper, the mineralization mechanism of aniline in the photo-electro-Fenton system was also discussed.     

Nonsynchronous Trading Model and Return Analysis

Nonsynchronous trading is one of the hot issues in financial high-frequency data processing. This paper extends the nonsynchronous trading model studied in [1] and [2] for the financial security, and considers the moment functions of the observable return series for the extended model. At last. the estimators of parameters are obtained.     

南京电子工业发展战略研究

南京电子工业发展战略研究范汾涤，沐志成，徐士钰，许金龙，张文炽一、南京电子工业发展现状南京素以“电子城”著称。作为南京的一大优势，其生产规模、产品水平、科技开发能力均在全国居领先地位。以１９９２年为例，在全国３７个中心城市（不包括３个直辖市）中，南京...     

分子进化论的兴起及其影响

分子进化论的来由现存生物都是进化的产物.在分子生物学产生之前,形态学、胚胎学、古生物学等为生物进化提供了有力的证据。如根据比较形态学、古生物学资料——化石,即可描述动植物不同纲目的系统树,以表明一切生物都是由共同的祖先通过不断的性状分歧进化而来的,说明生物由低级向高级方向发展,以及种与种之间的连续性。但是,实际上,化石记录不完整,甚至存在相当多的缺陷.这样,根据化石资料也往往看不出生物之间的连续性。本世纪五十年     

关于“长阵方程AXB＋CYD＝E的通解”的注记

文[1]利用矩阵的加逆给出了矩阵方程AXB＋CYD＝E解的相容性，唯一性及通解，本文指出，文[1]的结果可利用矩阵的减号逆写得更一般些，而且纠正了文[1]的几处错误。     

运用多种教学方式方法提高《法律基础》课教学效果

在《法律基础》课的教学中，以“以案说法”的启发式教学为主导，综合运用案例分析、学生演讲、学生讲课、电化教学等多种教学方式方法，并在考试出题方式上注重考学生的理解分析能力，较好地克服了传统的、单一的教学方式方法的弊端，提高了教学效果。     

参数校正处理在扩展边界条件法的应用

作者对扩展边界条件法（EBCM）进行了参数校正处理，以拓宽扩展边界条件法的适用范围。通过对亚波长正统光栅进行数值计算，在光栅深宽比达1.05的情况下，获得稳定收敛的结果，并与反射透射系数阵法（RTCM）的计算结果一致。     

里氏硬度与洛氏硬度的数值关系

以35钢、T8钢为试验材料，探讨了里氏硬度HLD和洛氏硬度HRC之间的数值关系，用MATLAB工具给出了具体的回归分析曲线拟合关系式。