分析试验

Seventhly, a series of experiments and projects were carried out for verifying the previous theory. First, the cable force control test of reticulated shell-string structure in 2.2m×4.6m was conducted using the arithmetic presented in the paper. Second, the numerical analysis during construction, the adjustment of cable forces and the changing of cable of the Beijing North Railway Station were conducted.

为了进一步验证本文前几章有关预应力空间钢结构索张拉计算方法的正确性，本文进行了一系列的试验研究，包括：用提出的基于索原长反分析法对一2.2m×4.6m的小型张弦网壳进行索张拉成形的试验研究；对北京北站进行了模型施工过程分析、模型索张拉力的调整、换索试验研究。

The modal tests of PCB and PCB assembly (free boundary condition and fixed boundary condition) were carried out. The equivalent elastic modulus and damping parameters of PCB can be gained, and the fixed boundary condition of finite element model was also determined. These will help to the following work.Second, drop impact tests of three different heights were carried out. Strains and acceleration responses of PCB were measured. Failed BGA packages of different test conditions were dyeing, and cross section analysis of failed solder joints was conducted.

针对JEDEC标准试件的局限性，提出了设计便于统计学研究焊点可靠性的试验试件的构想，利用有限元模态分析方法确定并验证了用圆形PCB组件替代JEDEC标准试件的可行性；通过一系列模态试验和有限元模态分析，确定了圆形PCB组件的相关试验参数，这不仅为跌落碰撞下PCB组件有限元模拟确定了较为合理准确的有限元模型，而且为正确地评价跌落碰撞下PCB组件的可靠性问题奠定了基础。2。

The modal tests of PCB and PCB assembly (free boundary condition and fixed boundary condition) were carried out. The equivalent elastic modulus and damping parameters of PCB can be gained, and the fixed boundary condition of finite element model was also determined. These will help to the following work. Second, drop impact tests of three different heights were carried out. Strains and acceleration responses of PCB were measured. Failed BGA packages of different test conditions were dyeing, and cross section analysis of failed solder joints was conducted. It was found in our drop tests that the root cause of lead-free solder joints under drop impact was the combined effect of mechanical shock and PCB bending vibration.

针对JEDEC标准试件的局限性，提出了设计便于统计学研究焊点可靠性的试验试件的构想，利用有限元模态分析方法确定并验证了用圆形PCB组件替代JEDEC标准试件的可行性；通过一系列模态试验和有限元模态分析，确定了圆形PCB组件的相关试验参数，这不仅为跌落碰撞下PCB组件有限元模拟确定了较为合理准确的有限元模型，而且为正确地评价跌落碰撞下PCB组件的可靠性问题奠定了基础。

At the same time combined with indoor maximum dry density test,this paper discusses the possibility that rock-filling construction quantity .Then data of densification quantity examination under the condition ofdifferent filling material.densification machinery.densification parameter and lay-down thickness are collected as the analytic object. On the basis of making a statistical analysis of experiment data ,supervisory standard and assessment method of settlement difference and settlement ratio that adopted to examine rock-filling embankment construction quantity are put forward systematically At last carrying on settlement observation tests of rock-filling embankment in different construction stage in different layer ,the dependability of assessment method is validated.

同时结合室内最大干密度试验，讨论了表面沉降法作为填石路基施工质量检测手段的可行性和可靠性；然后通过汇总不同填料、不同压实机械、不同压实参数和不同摊铺厚度条件下的压实质量检测数据作为分析对象，在对试验数据进行了统计分析的基础上，较为系统地提出了以沉降沉降差及沉降率作为填石路基施工质量检测指标的评定方法和相应的管理标准值；最后通过对填石路基试验段进行不同填筑时期不同层位的沉降观测试验，验证了评定方法的可靠性。

The clinical criteria for both diagnosis and efficacy evaluation of disease are also needed. To include all symptoms, tongue manifestations and pulse presentations into case report form, and to compare the differences in these clinical parameters between effective and noneffective cases by multivariate analysis may be helpful to find more specific indications for therapeutic protocol of TCM. Furthermore, It is suggested that two or more clinical trials on one therapeutic protocol are needed to identify its accurate indications.

中医药规范化治疗方案的研究必须体现中医基本理论，遵循现代医学临床试验设计方法以及利用现代医学关于疾病诊断和疗效判断的标准，应将中医证候相关信息纳入临床试验的检查项目之中，开展两次或多次的临床试验，利用多元统计分析方法，对比分析有效和无效人群的特点，寻求与中医药治疗方案有效结局相关的主观症状、舌象和脉象，从而找到该治疗方案的最佳适应症，形成规范的治疗方案。

In statistical analysis of paired comparison data in sound quality evaluations, the commonly adopted Kendall＇s coefficient of consistency criteria is not sufficient for assessment of judging errors. Based on the analysis of misjudging rates in the same-sound-event-comparison, the different-replay-order-comparison and the circular triads, an accurate calculation model for circular triads is proposed.

针对声品质主观评价成对比较法试验结果统计分析中，采用Kendall一致性系数进行数据有效性判断的不足，从检验成对比较试验数据中存在的相同声事件、不同回放次序以及三角循环等三种误判出发，分析了评价试验的三角循环误判的发生情况，提出了三角循环误判次数的准确计算方法。

At last, on the basis of the constitution and work principle of brake staff, using friction tester as a testing platform, temperature measure device for the brake pad is developed, and the test data are analyzed.

本文首先对制动器和刹车片进行了简单介绍，然后从传热学的理论出发，分析了刹车片制动过程中热量产生机理，并用有限元法对刹车片的温度场进行了简单分析，最后在对制动器的结构和工作原理进行分析的基础上，运用摩擦试验机作为试验平台，研制出刹车片的温度测量装置，并对测量结果进行了分析。

In this paper the photocathode and micro channel plate, the two key factors affecting image intensifier operational life, are also analyzed in detail and are listed the life test methods in night vision ind...

通过对国内外加速寿命试验和像增强管工作寿命试验方法的分析借鉴，结合我们二代近贴管二十多年的生产试验，特别是超二代管工作寿命试验积累的宝贵经验，本文提供了一种加速试验方法，在保证像增强管阴极灵敏度稳定性的前提下，采用一个对光电阴极影响最大的应力加倍的方法，以缩短工作寿命试验时间，减少生产周期以保证交货进度。

The damage analysis of cracked turbine disk in the rocket engine is described. From a series of analyses, the causes of failure were reasoned through calculation and experiments, fatigue analyses which include stimulating vibration test and fatigue strength calculation were emphasized.

针对某火箭发动机涡轮盘在热试车中出现的裂纹故障，进行全面的分析，准确定位故障类型，以试验和计算分析给出合理的故障原因，重点是在疲劳分析方面所做的工作，包括振动模拟试验、疲劳强度计算，并根据疲劳强度分析结果提出改进方案。

Based on them, distribution laws of subgrade temperature field under fluctuant boundary temperature cycle conditions are analyzed, and different ratios of slope for general subgrade and different status when there are or not banquettes are compared by laboratory simulation and numerical analysis; thermal insulation and cooling effect of thermal insulation slab, broken stone and non-power heat pipes is respectively investigated under the trend of elevated temperature by numerical analysis, laws of subgrade deformation are predicted under the trend of elevated temperature and influences of subgrade thaw settlement on pavement stress are studies by numerical computation for observation data of representative road sections selected.

为研究青藏公路冻土病害处治对策，从青藏公路2002年～2004年冻土病害整治工程实际出发，在系统分析研究青藏公路病害及发生机理的基础上，运用室内模拟试验、数值分析方法，依托处治冻土病害路段实际使用的隔热板路基、碎石路基、无动力热棒路基等进行现场试验，分析边界温度周期波动条件下的路基温度场分布规律，同时进行一般路基不同边坡坡率的对比研究及有无护坡道的对比研究；运用数值分析方法，对气温升高趋势下隔热板、碎石、无动力热棒的隔热降温效果进行了研究；选择代表性路段观测资料，运用数值计算的方法，进行升温趋势下的路基变形预测，研究路基融沉变形对路面应力的影响。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。