动态测试

On the basis of improving the dramatic characteristic of fluid drive system of the platform, the electro-hydraulic servo control system of simulating platform is designed, and its characteristic is analyzed, and the corresponding control algorithm is studied in this paper. What all do is in order to make the platform of ship motion simulating simulate the motion of ship, and realize the high precision motion pose of the platform, and achieve the motion performance index required by the testing of sea sickness.

在提高平台液压驱动系统动态性能的基础上，本文进行了模拟平台电液伺服控制系统的设计、特性分析和控制策略研究，使该模拟平台能模拟船舶运动，实现高精度的平台运动姿态，达到晕船病测试所需的运动环境性能指标。

This paper presents a research of the dynamic characteristics testing method of the rear wheel of a typical car and new experimental project and testing method based on the four-post vehicle road simulation system.

以某典型中级轿车后轮为例，对轿车后轮定位参数动态特性试验测试方法进行了研究。

Zhejiang Province Key Laboratory of Modern Measurement Technology and Instrument, China Jiliang University, Hangzhou 310018, China Abstract: The degradation dynamics of iprodione on greengrocery in greenhouse and at open field were studied with gas chromatography.

中国计量学院现代计量测试与仪器浙江省重点实验室，杭州 310018 摘要：采用气相色谱法研究了异菌脲在大棚和露地青菜上的残留降解动态。

The gradient ceramic-metal composites was prepared by the hot-press sintering method, and the static and dynamic mechanical performance were tested.

利用热压烧结法制备了梯度型陶瓷-金属复合材料，并对其静态压缩性能和动态冲击压缩性能进行了测试。

In the case of inapplicability of hammering excitation to the arm of industrial robot for extracting its dynamic characteristics,according to the Duharmal integral theory and applying the specific upper triangle construction of input matrix of system as well as the technique of time average ,an efficient de-noising average recursive algorithm is presented in this paper.

针对锤击激励方式不适用于工业机器人操作臂动态性能测试的情况，根据Duharm a l积分理论，利用系统输入矩阵的上三角形的特殊结构，并结合时域平均技术，导出了具有抗噪性能的高效的求取系统脉冲响应函数的平均递推算法。

Combining the Test Signal Method and the dynamic simulation function of PSS/E, the method can calculate the phase lag of the excitation system with consideration of detailed grid and equipment models, and design the PSS parameters by using the phase compensation and critical amplification factor methods.

基于仿真软件PSS/E提出了一种设计PSS参数的方法，该方法具有如下特点：结合测试信号法和PSS/E的动态仿真功能，在充分考虑全网和各设备详细模型的情况下计算励磁系统相位滞后特性；并采用相位补偿法和临界放大倍数法设计PSS参数。

Aimed at the characteristic of multiple types of faults possibly happened in nuclear power plant, large scale of training sample, and requirement of quick and accurate diagnosing, after the analysis of large sample number generated by large fault type exceeds limitation of 64K paragraph in DOS and large number of local minmum in error surface, measurements of same format of data file, Win95/NT operating system platform, resetting weight learning rate, dynamic training set in quick learning algorithm and improvement on quick learning algorithm using homotopy method which can avoid local minmum points in error surface have been adopted to ensure quickly and effective process of the course of neural network's training and testing.

针对核动力装置可能发生的故障种类多，训练样本规模大，故障诊断需要快速准确的特点等，分析了样本多和故障种类多产生的训练样本量超出DOS段大小和网络误差曲面上局部极小值多的情况，采取了使用相同格式数据文件、Win95/NT操作系统平台，对快速学习算法采用重置神经网络权值学习率和动态训练集、并采用能够有效克服网络误差曲面上局部极小点的同伦方法对学习算法进行改进等措施保证神经网络训练测试过程的快速、有效地进行；针对装置发生的故障须快速、准确诊断的需要，分析了故障的产生对装置参数变化的影响及操纵员对故障诊断的基础，在核动力装置发生故障时参数曲线的变化量与正常运行时参数曲线的变化量存在明显差异的基础上，提出采用参数曲线的变化量作为神经网络的输入，并围绕参数变化量的方法采用二次曲线拟合滤波求变化量和阈值技术来保证神经网络得到精确的装置参数变化量，从而得到准确的诊断结果。

Dynamic ET endoscopy findings of 121 ears (of the total 124 ears studied) were correlated with middle ear manometric studies using Mc Nemar 2 test.

这表明（内镜下共研究了124例耳）所发现的121例耳的咽鼓管动态与用Mc Nemar 2测试检测的中耳测压研究显著相关。

The micelle diameter was investigated by virtue of dynamic light scattering.

通过动态光散射方法测试了胶束的直径。

The minimality of the virtual backbone is assured by designing optimization algorithm. As a result, it can effectively decrease the overhead of control packets dissemination. Simulation resluts show the correctness and the ability of self- renew.Considering the characteristic of fast-moving in wireless ad hoc networks, we construct a virtual backbone with a independent dominating set. This method can avoid sustaining connectivity between backbone nodes and the bakebone network can be rapidly reconstructed as topology change.

对规模较大、移动较频繁的ad hoc网络，用独立支配集构建虚拟骨干网，克服了骨干节点之间必须维护连通性的问题，使得拓扑变化较快时骨干网的重构能快速实现；采用动态按需路由机制，解决了骨干节点要维护路由表的问题；还利用极大独立集的求解得到极小独立支配集；并通过仿真测试了算法的正确性及自恢复能力。

This brought fixed cost, but it also is meant at the same time use a source to won't make you singlehanded assume a problem.

这带来了一定的成本，但它同时也意味着使用开源不会让你独力承担问题。

He gained a small fortune in real estate.

他在房地产上发了一笔小财。