传输线衰减常数与柱形谐振器Q值的关系

文中严格地讨论了任意截面形状，任意模式的柱形谐振腔Ｑ值与构成该谐振器的传输线衰减常数间的关系，给出了更一般的公式，推广了Ｄａｖｉｄｓｏｎ和Ｓｉｍ－ｍｏｎｄｓ＾［１］、Ｂａｒｌｏｗ和Ｃｕｌｌｅｎ＾［２］以及Ｙｅｈ和Ｓｈｉｍａｂｕｋｕｒｏ＾［３，４］的结果。     

Electrochemical intercalation in NiOx thin films

In this work we investigated the mechanism of the electrochemical intercalation reactions in rf sputtered nickel oxide thin films electrodes by two techniques: mechanical stress change measurements by means of an optical technique and mass changes using an electrochemical quartz microbalance (EQCM). The experiments were performed in alkaline electrolytes containing cations of the first column of the periodic table. Reversible mass and volume changes were observed. In order to explain these experimental results, an exchange reaction is proposed, in which the oxidation process is accompanied by the deinteractional of a relative large number of “light” cations, simultaneously with the intercalation of a smaller number of heaviest cations.     

超高压输电线路分裂导线通道模式理论分析

本对分裂导线传输电磁波的模式理论进行了分析，从所解特征根中选择一组最简单的模分量传递信息，并阐述了传输规律。     

用于X光激光实验的反射式线聚焦光学系统的设计和分析

基于三维光线追迹的象差计算,对卢瑟福实验室用离轴球面反射线聚焦系统作了分析。然后,首次提出了用于X光激光实验的两类新的反射式线聚焦构型,即反射式光楔列阵和光锥列阵系统,并作了计算。最后,对所得结果作了比较和讨论。     

黄土塬区天然气地震技术和综合解释

黄土塬区复杂的地表条件难以获得可供解释的物探资料,本文给出了勘探天然气的地震技术,在野外弯线地震数据采集中,冲沟区运用了弯线高分辨率技术;塬上区采用非纵测线和地震测深观测系统,大药量、深井和强化组合法的接收条件。初步解决了弯线地震资料处理中二维滤波、静校正、速度分析等技术难题。摸索出一套以地震为骨架,构造解释与岩性解释相结合,重力-电法-地震联合解释落实古生界天然气构造圈闭的综合物探解释技术,并以实例展示方法的有效性。     

液压随动系统在线监测与故障诊断系统

介绍了集随动系统在线监测与故障诊断于一体的智能系统。利用基于知识的诊断推理技术与神经网络技术相结合的方法构建了随动系统在线故障诊断专家系统，使得神经网络推理与基于符号的知识诊断控制、解释有机地结合起来，取长补短，大大提高了系统的工作效率和诊断可靠性。     

Longitudinal elastic waves in columns due to earthquake motion

An analysis is presented of longitudinal waves in a thin elastic column. Velocity is specified at one end, and the boundary condition at the other end is expressed in terms of a range of effective impedances of an attached structure. Propagation, reflection and interference of the waves are followed by the method of characteristics. Integration of differential equations along characteristics yields the wave-induced stress, which is then applied to problems of earthquake excitation. Numerical examples are given for recorded updown ground motion of the Kobe Earthquake.     

极尖断面为折线的四极透镜磁性能研究

对传统双曲线极尖的四极透镜进行了磁性能分析。在此基础上，提出了极尖断面为折线的四极透镜结构。磁场的数值分析以及测量结果表明：该结构产生的场梯度均匀，且具有磁场集中、磁场梯度高、便于加工和安装的对称性控制等优点。该结构的四极透镜已用于ＣＹＣＩＡＥ－３０回旋加速器和ＨＩ－１３串列加速器束流输运线之中     

Surface stress effects on the thermodynamics of epitaxy

An analysis of the thermodynamics of epitaxy in thin films is presented which includes the effects of the surface stresses of the free surface and the film-substrate interface. It is shown that these effects, which are usually ignored in the theory of epitaxy, can have a major influence on both the critical thickness for epitaxy and on the partitioning of the misfit strain between the volume elastic strain and interface dislocations.     

圆杆弹性和弹—塑性扭转公式的探讨

对圆杆在线弹性阶段，弹－塑性阶段和全塑性阶段的扭转剪应力的计算公式作了分析，并推导了在材料的应力－应变关系（τ－γ关系）不服从虎克定律时，扭转真实剪应力的计算公式。文中对扭转强度计算公式的来源，物理含义及其都作了详细的说明。这对执行和理解国家ＧＢ１０１２８－８８《金属室温扭转试验方法》是有益的，而且对高校中材料力学的教学具有一定的参考价值。