任意曲线槽波导色散特性的网络分析

用阶梯近似和微波网络相结合的方法分析了具有任意槽形状的单槽和双槽波导的色散特性，提出了一种新的宽带槽波导定向耦合器的设计途径．所得数据与实验结果与用其他方法计算得的结果都吻合得较好，证实了本文方法的精确性、有效性和可靠性．     

圆形槽波导的另一种分析方法

本文利用矩形剖分的近似方法并借助于Ａ．Ａ．Ｏｌｉｎｅｒ等人得出的有关矩形槽波导的分析结果，建立了圆形槽波导的横向等效网络，根据横向谐振条件得到了该波导结构的色散关系，数值计算结果表明，该方法较为简单，且具有较好的精度，是分析圆形槽波导中主模色散关系的一种有效方法。     

A New Thread Guide Mechanism of Rubbed Roving Frame

A new thread guide mechanism of a rubbed roving frame is developed, which consists mainly of a plate cam, a linkage and an air bag spring. Characteristics and design parameters of the air spring are explored in this study. Based on analyses of winding technology for this kind of package, the kinetic laws of the thread guide is put forward. General design equations of the cam profile are derived, and common kinetic laws of II linkage group which is used for such mechanism design is proposed. It proves theoretically that it is practicable. The experimental results indicate that it can meet the needs of technological demands, and the new thread guide mechanism has been used successfully on textile machines.     

双向贯流泵导叶设置与原动机布置的研究

根据双向贯流泵具有在正、反向工作时效率都不能太低，而导叶布置的位置，导叶进、出口安放角和叶栅稠密度等因素对泵出流流态变化产生影响，进而影响到泵的效率的提高这样一些特点，通过单、双向贯流泵性能试验的对比分析，得出了“S”形双向惯流泵设置后导叶能显著提高泵的效率以及原动机布置在进水侧较为有利的结论。     

不同风口型式前室加压送风系统性能模拟分析

利用多区域网络模型，在不同开门情况下，分别对常开风口和常风口前室加压送风系统性能进行了定量模拟分析，有助于深入了解系统运行特性，对于现有设计方法和规范内容将做有益补充，从长远发展看，网络烟控模型必将在建筑物火灾安全设计，消防教育和建筑火灾安全咨询服务领域担当重要角色。     

含沙水流中水轮机导叶的设计研究

依奇点分布法和前人分析实验得到的含沙水流中固体颗粒的受力分析结果,利用相对阻塞和相对抽吸的观点对含沙水流中水轮机导叶进行设计。经模型试验表明,与传统方法设计的导叶相比,用本文提出的方法设计的导叶在含沙水流中运行时,水力效率高,耐磨蚀。     

不同床层温度流化床分批干燥曲线的转换

提出从等温入口流化床分批干燥曲线预测等温床层干燥曲线的近似方法，该法可从某一恒温入口条件下测得的等温入口干燥曲线转换为所希望温度下的等温入口干燥曲线，且由皮革、树脂球和砖粒等物料的实验所证实．     

Mode Distribution and Bandwidth Characteristic of Arbitrarily Trapezoidal-Groove Guide for Millimeter Waves

The modes TE and TM of arbitrarily trapezoidal-groove guide are analyzed by using the mode-matching method. The mode TE₁₁ is the dominant mode of the trapezoidal-groove guide under different conditions. The bandwidth characteristic and the operation condition for the single dominant mode are discussed. The obtained conclusions are of very important significance in theoretical study and practical application of trapeziodal-groove guides for millimeter waves.     

Twisting of a Spinning Particle Trajectory in an Absorbing Medium

In the geometric optics approximation, we predict the effect of additional twisting of spinning particle trajectories in an absorbing medium. The effect is determined by the particle polarization (chirality) and the curvature of the particle trajectory. Using our results, we quantitatively estimate the deviation from the mirror reflection law for ultracold neutrons.     

利用弹簧振子演示李萨如图形

介绍了利用光滑导轨、弹簧振子、高亮发光二极管演示李萨如图形的方法.