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.     

基于B/S模式的年度考核管理系统的设计与实现

本文阐述了新疆师范大学年度考核管理系统的功能、设计与实现。     

C—Bezier曲线

讨论了C—Bezier曲线的端点特性和曲线的性质，给出了C—Bezier曲线和Bezier曲线的G^1光滑拼接和G^2光滑拼接的几何条件，并利用C—Bezier曲线精确地表示二次曲线．     

苏云金芽孢杆菌cry1基因的PCR-RFLP鉴定分析

利用PCR—RFLP技术对含有已知cry1基因的8株标准菌株和2株遗传工程菌进行了基因分析，证实了该方法的可行性．并在此基础上鉴定了分离保藏的70株B．t菌株的cry1型基因，结合SDS—PAGE分析以及室内生物测定结果，讨论了基因型与蛋白表达及毒力之间的关系．     

基于校园网的学分制教育管理信息系统的设计与实现

针对高等学校教育需求形式、层次、规格多样化等情况,介绍了基于校园网环境下的学分制教育管理信息系统的建设背景、建设目标、设计原则、总体规划、主要功能、开发工具及系统实现技术特点.     

黄磷废水处理系统中氰降解菌的筛选

首次对含有氰化物的黄磷废水进行了氰降解菌筛选优化,共得耐氰菌20株,其中有9株的降氰率在90％以上,且AB2001003菌株降氰率在97.1％以上.该菌能在72 h内使含CN~-50mg·L~(-1)的黄磷废水降至0.5 mg·L~(-1)以下,达到国家一级排放标准.该菌的最佳生长pH7.7,最佳温29℃.     

基于代理的校园网计费管理系统

根据目前Cernet校园网典型结构,设计了一种适应性广、通用性强的校园网计费管理系统,探讨了使用代理服务器进行计费的主要功能和工作流程.