Delphi4.0中的网络消息传递机制及应用

阐述了在Ｄｅｌｐｈｉ４ ．０ 下开发ｃｌｉｅｎｔ／ｓｅｒｖｅｒ 模式应用程序时，利用Ｄｅｌｐｈｉ４ ．０ 所提供的Ｉｎｔｅｒｎｅｔ 组件在网络计算机之间进行消息传递的原理，并介绍怎样利用这一功能设计开发实际的应用系统。     

2，2—二甲基—5—（2,5—二甲苯氧基）戊酸合成反应的研究

在1-（2，5-二甲苯氧基）-3-溴丙烷与异丁腈的熔基化反应中加入相转移催化剂，生成物不经分离，直接水解，总收率可达78.2%。     

英语学习中的负迁移现象及其预防措施

从心理学的角度，浅谈英语学习中负迁移的形成及其预防措施。     

降膜结晶分离过程的数值分析

为了研究降膜结晶过程的相变耦合传热传质过程 ,在混合物理论和实验观察所得的结晶形态及形貌特征的基础上建立了描述降膜结晶过程动量、热量和质量传递的数值模拟模型。该模型的一个重要特点是认为在降膜结晶过程中在熔体液相区和固相区之间存在一薄厚不匀且不断变化的二相区。以二元透明有机熔体 (萘硫茚 )为例 ,针对实验单管降膜结晶器的实际降膜结晶过程动量、热量和质量传递过程进行了数值模拟 ,所得结果在未引入任何经验常数下 ,与实验结果符合较好     

Elementary Investigation of Increasing Polarization Performance of Air Electrode for CO2 Transfer

Air electrodes are the key components of Electrochemical carbon dioxide concentrating(EDC) cells. Therefore, the improvement of the polarization performance is beneficial to the increasing of CO2 transfer and cell stability .The preparing process of air electrode is improved by means of the pretreatment of active carbon(AC) and the selection of preparing method of platinum/carbon(Pt/C) powders. Besides, based on the analysis of orthogonal test results, the optimum preparing conditions of Pt/C powders in air electrode are achieved, that is, hydrazine hydrate concentration is 5%～10%, platinum capacity is 8mg/cm2, chloroplatinic acid concentration is 10.0mg/ml and water both temperature is 40℃.     

Electrostatic effect on electron transfer between cytochrome b5 and cytochrome c

The binding and electron transfer between wild type, E44A, E56A, E44/56A, E44/48/56A/D60Aand F35Y variants of cytochrome b5 and cytochrome c were studied. When mixed with cytochrome c, the cytochrome b5E44/48/56A/D60A did not show the typical UV-vis difference spectrum of absorption, indicating that the alteration ofthe surface electrostatic potential obviously influenced the spectrum. The electron transfer rates of wild type cytochromeb5, its variants and cytochrome e at different temperature and ionic strength exhibited an order of F35Y > wild type >E56A > E44A > E44/48/56A/D60A. The enthalpy and entropy of the reaction did not change obviously, suggestingthat the mutation did not significantly disturb the electron transfer conformation. The investigation of electron transfer rateconstants at different ionic strength demonstrated that electrostatic interaction obviously affected the electron transfer pro-cess. The significant difference of Cyt b5 F35Y and E44/48/56A/D60A from the wild type protein further confirmed thegreat importance of the electrostatic interaction in the protein electron transfer.     

基于虚通道的ATM自愈网及其空闲容量的分配

讨论了基于虚通道的ＡＴＭ（异步转移模式）自愈网的结构、自愈算法及其特点，同时对自愈网的空闲容量进行了分配和设计。     

ATM网络中恒定比特率和可变比特率语音通信

分析了ＡＴＭ（异步转移模式）网络中恒定比特率（ＣＢＲ）和可变比特率（ＶＢＲ）语音通信方式，讨论了ＩＴＵＴ１９９７年新颁布的ＡＴＭ可变比特率业务适配标准ＡＡＬ２，给出了信元装配实例。针对ＶＢＲ业务相对ＣＢＲ业务有较大不同的网络传输时延特性，着重分析了语音信号作为ＶＢＲ业务采用ＡＡＬ２适配标准时，通过ＡＴＭ网络传输时的装配时延问题。     

新型电脑横机主要控制机构设计分析

根据在开发设计电脑横机中所积累的经验,分析新一代电脑提花针织横机几个主要控制机构,对其中的针床横移机构以及齿口片结构设计做了重点的介绍     

碱金属插层化合物MxTX2的结构特征

本文概述了碱金属插层化合物ＭｘＴＸ２的结构特征，包括电荷转移，电子结构，碱金属离子的配位，结构参数的变化，插入物质的阶梯化和有序化。综述了主要实验结果和理论结果。