流化床气化炉内煤气组成变化规律的试验研究

介绍了在流化床气化炉中间试验装置上进行的有关粉煤流化床气化反应的试验研究，对沿气化炉高度的气样作了成分分析，得出了还原区和稀相段沿炉高煤气组成的变化规律，考察了水蒸气量、空气温度等因素对煤气组成及其变化规律的影响，并应用化学反应平衡理论对影响炉内煤气组成变化的主要因素进行了分析．     

薄凸透镜焦距测量的不确定度分析

用不确定度来分析测量结果已成为一种趋势。本文对用物距像距法测薄凸透镜焦距时的不确定度进行了较全面的分析。首先对其系统偏差进行了修正，然后据不确定度定义对其测量结果进行了不确定度的分析。最后，简要解释了为什么理论计算结果与实验测量有一定偏差的原因。     

薄透镜的等光程性证明

薄透镜的等光程性在许多基础物理教材中仅给予了定性的说明，本文以空气中的薄透镜为例，分四种情况，定量地证明了薄透镜的等光程性     

高取向膜的1／f噪声

测量了几种高取向ＹＢＣｕｏ膜的１／ｆ噪声．结果显示，ＹＢａ２Ｃｕ３Ｏ７－　材料的噪声可能来源于样品中的晶粒边界．改善膜的微粒结构是减少１／ｆ噪声的一条有效途径．     

开孔矩形薄板应力分析的边界元法

本文根据边界元法的基本原理，利用编制的求解多连域具有体积力的平面问题的计算机程序，对无孔和开孔的矩形薄板的应力进行了分析和计算。计算结果表明，对于无孔的矩形薄板，数值解与解析解几乎相等，可见边界元法具有较高的计算精度；而对于开孔的矩形薄板，得出了孔口附近和内点的应力分布的一些重要结论，这对于理论研究和工程设计具有很重要的参考价值。     

MAGNETIC FIELD EFFECTS ON LAMINAR FILM CONDENSATION ON A FINITE-SIZE HORIZONTAL WAVY DISK

This work aims to study the laminar film condensation heat transfer with magnetic field effects on a finite-size horizontal wavy disk. Mathematical analysis is used to obtain the dimensionless governing equations and boundary conditions, and the cubic spline collocation method is then used to calculate the flow and heat transfer characteristics along the wavy disk. The effects of the important parameters, such as Hartmann number, condensation parameter, wave number, amplitude-wavelength ratio, and Pr/Ja on the heat transfer characteristics have been successfully examined. The magnetic field effect increases the critical condensate thickness and thus decreases the condensation heat transfer. Odd wave number effects decrease the critical condensate thickness and thus enhance the condensation heat transfer.     

Century 21 - Pregnant with Ozone

As we enter this new century, it is striking how the number of applications for ozone is growing. During ozone's first century, the emphasis for using it involved primarily, potable water treatment, wastewater treatment, bottled water treatment, odor control and medical therapy. Of these, potable water and wastewater treatment now can be called the “classical” applications for ozone. But there are a great many more uses for this versatile chemical that might be termed “non-classical”, and these began emerging toward the end of the last century. Some of these so-called “non-classical” developing applications for ozone will be reviewed in this paper. As we enter the 21s1 century, applications for ozone in the various aspects of the agricultural and food processing industries are very active and most promising.     

宽带隙ZnMgO的电学特性及其透明薄膜场效应晶体管

首次提出了用六方相晶体结构的宽带隙ZnMgO作为薄膜场效应晶体管（TFT）的沟道层，用立方相ZnMgO纳米晶体薄膜作为栅绝缘层，在实验中用透明的ITO导电玻璃作为衬底，通过连续沉积六方和立方相结构的纳米ZnMgO晶体薄膜，并通过光刻、电极工艺等，研制了透明的ZnO基TFT, TFT的电流开关比达到1E4，场效应迁移率为0.6cm2/(V·s).在偏压2.5MV/cm下漏电流为1E-8A.     

夹芯板弯曲屈曲分析的有限条-棱方法

用有限条 -棱方法对冷弯薄壁型钢压型表面泡沫夹芯板进行了弯曲屈曲分析 ,得到了夹芯板受压面层屈曲时的临界应力、屈曲荷载及屈曲半波长 ,并与试验结果进行对比 ,理论值与试验值吻合较好     

Texture and microstructure of thin copper films

Microstructure is an important factor influencing the reliability of thin film interconnects. The microstructure of copper films is of particular interest because of its use in numerous electronic applications. Pole figure x-ray diffraction and transmission electron microcopy were conducted on copper films deposited by several techniques: sputtering, partially ionized beam deposition, chemical vapor deposition, evaporation, and electroplating. Quantitative texture data are determined from fiber texture plots. A typical copper film consists of three texture components: (111), (200), and random. (220) and (511) texture components are possible under some deposition conditions. Compared to aluminum films, the fraction of the random texture component and the distribution of the (hkl) components in copper films are relatively large. Bimodal grain size distributions are observed in some films.