彩电中I2C总线系统调整

介绍了彩电中 I2 C总线系统的控制和调整原理 ,以及实例机型的调整方法 .     

第二大特征值不超过√5—1／2的连通线图

给出了互二大特征值不超过√5－1／2的所有连通线图，它们包括三大类和十大特殊情形。     

3β—取代5—甾烯并—1—取代[17,16—C]吡唑啉—5—酮和3β—取代5—甾烯并[17,16—C]异恶唑啉—5—酮的合成

以3β－取代5－甾烯－17－酮与碳酸二甲酯经Claisen综合，所得产物再分别与肼或羟胺反应，设计合成了几种3β－取代5－甾烯并－1－取代[17,6-C]吡唑啉－5－酮和3β－取代5－甾烯并[17,16-C]异恶唑啉－5－酮，其结构经元素分析、IR、^1H NMR和^13C NMR确证。     

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.     

流水线用水玻璃砂VRH—CO2法的研究

着重研究了水玻璃砂ＶＲＨ－ＣＯ２法流水线作业时如何调整真空度，ＣＯ２用量和添加剂等，以保证型砂起模的即时强度，同时使０．５～３ｈ的短期存放强度在１ＭＰａ以上，实验结果表明：单纯用真空脱一ＶＲＨ－ＣＯ２法都不能使水玻璃砂的短期存放强度满足流水线生产的要求，只有加入添加剂才可以使ＶＲＨ－ＣＯ２法取得最好的硬化效果，水玻璃模数及ＣＯ２用量都对水玻璃砂短期存放强度有一定影响。     

I_3─半群是幂零的若干充要条件

本文通过半群的代数理论给出了Ｉ＿３—半群是幂零的若干等价条件，并且导出几类是幂零的Ｉ＿３－半群     

基于Pro/E 的机翼型风机叶片的建模及平面展开

基于先进的3D设计软件Pro/Engineer，模拟离心式风机叶片的成形理论及构形特点，将风机叶片的建模、运算、绘图、下料全部由计算机完成，直接输出精确的下料图纸，大大简化了设计过程，并且提高了设计精度。