基于VAX／VMS的课件自动生成系统

本文介绍了一个在ＶＡＸ／ＶＭＳ下开发的课件自动生成系统，该系统提出了一套用于描述课件的数据组织和操作方法的规则，给出了一个用于方便数据输入和数据访问的工具库，可方便地制作课件，用于辅助教学。     

微型自由电子激光器的Maxwell方程解

本文由Maxwell方程导出了微型自由电子激光的电子辐射能量方程,上述微型自由电子激光器是利用铁电单晶体强大周期性表面势来设计的。 微型廉价自由电子激光器有高增益。     

Sn及Sn合金的微观断裂行为

微电子系统中互连尺寸的微细化使构成焊点的钎料合金的力学性能成为影响电子封装与组装产品可靠性的关键因素。因此,在微米及纳米尺度深刻掌握Sn基钎料合金的断裂行为对于更好地预测焊点可靠性具有重要意义。本文针对100Sn、63Sn37Pb、96.5Sn3.5Ag三种Sn及Sn合金,在进行力学性能测试和显微组织分析的基础上,考察了Sn及Sn合金在微米尺度上的动态断裂机制,以及纳米尺度上裂纹尖端的真实物理过程,阐述了Sn基体、含铅Sn合金和无铅Sn合金三者互有关联又各有不同的微观断裂行为特征。     

尔王庄暗渠泵站水泵机组倒转问题的探讨

水泵的倒转问题一直困扰着许多供排水泵站的安全运行。尔王庄暗渠泵站作为引滦入津工程的输水枢纽泵站也经常被这个问题所困扰,为确保机组的安全运行,消除水泵倒转的影响,探讨下解决此问题的方法。     

硅溶胶改性羧甲基纤维素-聚丙烯酸对铅(Ⅱ)的吸附研究

以过硫酸铵为引发剂,N,N′-亚甲基双丙烯酰胺为交联剂,采用自由基聚合法使羧甲基纤维素与丙烯酸进行接枝共聚,硅溶胶改性后,应用于Pb(Ⅱ)的吸附研究.考察了原料配比p、H、溶液浓度、吸附时间对吸附性能的影响.结果表明:硅酸钠质量分数为6%、pH为6时,复合材料表现出最佳吸附性能;吸附时间为120 min时,最大吸附率为99.11%,吸附容量为9.92 mg/g.     

具有收获率的HollingⅡ类功能性反应系统的定性分析

研究了具有收获率的HollingⅡ类功能性反应系统,讨论了该系统平衡点的存在性和性态,通过构造Lyapunov函数,证明了系统唯一正平衡点是全局稳定的.     

Micro/-nanoscaled topography-coupled-mechanical action into functional biointerface

The micro/-nanoscaled functional biointerfaces aroused much interest of their key unit element to present unique functions. So far it is still difficult to describe the whole picture of this process. More and more evidences are beginning to support the theory of ‘‘mirco/-nanotopography-coupled-mechanical(TCM) action' into functional biointerfaces.Herein, we aim to highlight TCM action on varied micro/-nanoscaled functional biointerfaces, namely to achieve better understanding of micro/-nanoscaled structures by introducing interfacial mechanical behaviors. In this article, recent progressions on ‘‘TCM on air/liquid/solid-phase biointerfaces in nature', ‘‘in vivo TCM behaviors at micro/-nanoscales' ',‘‘TCM in micro/-nanoscaled artificial surface with living Cells' ' and ‘‘topography, interfacial curvature, mechanics' 'are reviewed. Certain new concepts of ‘‘TCM action based on spatial curvature', ‘‘medically functional biointerfaces' ' and‘‘biomechanopharmacology' are also proposed.     

Electrooxidation of Mn(Ⅱ) on Pb-Sb-As Electrode in Sulfuric Acid

The electrooxidation of Mn(Ⅱ) on Pb-Sb-As alloy electrode in sulfuric acid has been investigated.In order to make the two steps of indirect electrosynthesis of benzaldehyde carried out in the same sulfuric acid concentration and also obtain high current efficiency of Mn(Ⅱ) to Mn(Ⅲ) and high yield of Mn(Ⅲ) oxidizing toluene to benzaldehyde in the mean time,the electrooxidation of Mn(Ⅱ) in 60% H2SO4 has been studied.Experimental results show that high current efficiency of Mn(Ⅲ) (about 75%) is obtained in 60%H2SO4 at 60℃.The reason affecting the current efficiency of Mn(Ⅲ) is discussed,and it is the coordination of sulfuric acid concentration and electrolytic temperature.The law is found that it is suitable for electrolysis at low temperature when sulfuric acid concentration is low and at high temperature when sulfuric acid concentration is high.     

教学软件 VACAI 及其生成工具的设计与实现

本文介绍了在ＶＡＸ／ＶＭＳ环境下开发的ＶＡＸ宏汇编语言辅助教学软件ＶＡＣＡＩ的数据组织、设计思想和实现方法。叙述了能够快速有效制作课件内容的工具。