出故障的

It can be got the fault tree of cascading failure in daqing oilfield line.

给出了大庆油田的某线路连锁故障的故障树。

On the basis of them, the effective fault information characteristic value was extracted. At last, the new method was applied to the fault diagnosis.

在此基础之上提取出有效的故障信息特征值，最后将新方法应用于故障诊断实践中。

On the basis of the analysis to the short circuit malfunction in domestic underground high voltage power network the paper deeply studied the relevant protection principle and the approach for improving the sensitivity and reliability of short circuit protection in underground high voltage power network designed the new type computerizable protection scheme of selective and rapid short circuit in underground high voltage power network with computer communication and logic identification technology Computer .

在分析我国井下高压电网短路故障的基础上，深入研究相关的保护原理及提高井下高压电网短路保护灵敏度和可靠性的方法，设计出新型的利用计算机通信与逻辑识别技术的井下高压电网微机选择性速断短路保护方案，将微机保护应用于煤矿井下高压电网，通过多机通信，逻辑判断判定线路故障段，从而做到快速的，有选择性的切断故障线路，避免煤矿井下高压电网因越级跳闸而造成大面积停电。

According on the fault mechanism of driving parts of bear box, and using the multi-resolution feature and time-frequency localization feature of wavelet transform, the fault feature signals are extracted. Besides, the noise interference is eliminated by using available noise eliminating method.

根据齿轮箱传动部件故障机理，利用小波变换多分辨率特性和时频局部化特性，提取出故障特征信号；并利用有效的消噪技术，去除噪声干扰。

A fault diagnose method of thermal imager by means of testing characteristic signal of circuit is suggested.

今提 出了诊断热像故障的一种方法，即测试整机电路的特征信号，根据测量结果自动判断故障。

The method is applied to sodium pump, Simulation results have shown'the better capability for detecting faults.

经过快堆钠泵的故障仿真，证明该方法能够较迅速地、自适应地检测出系统的故障。

At last a FDD tool is programmed based on ANN with experiment results which formed training stylebook and test stylebook.

论文的最后在实验基础上，整理出故障训练及检验样本，编制了基于人工神经网络的故障诊断程序。

This text aim at the neutral spot not connect the ground or through eliminate arc coil to conncect ground of connecting a ground of system, put out to connect a ground of electricity arc ability existently low and starts of the system occurrence Human body feeling electricity connect the ground to conduct electricity to press, the equipments inner part breaks down to connect the ground, having no problem of protect the ability.On the foundation of the thorough research protection method, put forward to change into above-mentioned system the protection project that the intelligence connects a ground of system movement.At the same time, introduced the intelligence to connect a ground of composing of system, the work principle, function and characteristicses and system to circulate the circumstance.

本文简要分析了我国配电网自动化的现状和面临的主要问题，指出合理、高效的配电系统网络结构是提高供电可靠性和供电质量的前提条件，本文在对国内现有配网方式进行全面分析的基础上，结合我国城网改造的目标的显状，提出了一种科学&田&字型接线，对其技术性、经济性和可靠性进行了论证，（分析了不同故障情况下系统如何完成故障的定位、隔离，网络的重构及负荷的转移，指出该方案具有很高的供电可靠性和相对较低的备用容量，是一种符合国情国力并能适应配网自动化发展的组网方案）；给出了适合该方案的不同控制模式并进行了优劣比较，指出集中远方控制模式划配网自动化发展的必然趋势；最后本文给出了该控制模式下的测控方式。

The dissertation analysis different measurement on channel frequency,different vibration signals sets and different location to form each ICA result.With regard to the failure diagnosis of the turbine generator operation,the study has explored the possibilities to detect the failure diagnosis source from the measurement signals.It has also provided sufficient analysis case for the application of separation to detecting failure source on the turbine generator.2.Aiming at the engineering application of overcomplete bases ICA,the dissertation has raised virtual channel on the new method of ICA.It take advantage of some testified knowledge to the constitution of ICA known as, together with other measurement signal to proceed ICA separation,which can increase frequency on the input signal.

分析了以不同测量通道数量、不同振动信号类型组合和不同测点位置组成输入信号的ICA分离效果，并对机组在故障状态下，从测量信号中分离出故障源的可能性进行了探讨，为ICA在汽轮机振动故障源分离方面的应用提供丰富的分析实例。2针对超完备基ICA的工程应用问题，提出附加虚拟通道ICA的新方法，利用某些已经具有先验知识的独立分量构成附加输入信号，与其它测量信号组合在一起进行ICA分离，达到增加输入信号数量的目的。

This article firstly focused on the relationship of aerospace SPE and RAM fault model. Secondly anatomise the correlative theory of the dependability test for embedded system. Thirdly a new method to evaluat tolerant software was put forward: a software fault injector based on hardware interruption and designed a corresponding type of fault injector: SFIBH.

本文首先系统地研究了航天单粒子效应和RAM故障模型之间的关系，然后对嵌入式软件可靠性测试的相关理论进行了剖析，在此基础上，提出了基于硬件中断实现的软件故障注入这一新的容错软件测评方法，并设计出相应的故障注入器SFIBH，最后对星载SAR监控软件的容错设计及测试技术进行了深入讨论。

Cynanchum Lingtai apricot production in the average weight 65 grams, the brightly-colored fruit, juicy rich, sweet-sour taste, sweet from the nucleolus, when the late Qing Dynasty famous Shaanxi, Gansu provinces, the Qing imperial court Tongzhi tribute for years.

灵台生产的牛心杏平均单果重65克，果实色泽鲜艳，汁多味浓，甜酸适口，离核仁甜，清末时就驰名陕、甘两省，清同治年间曾为朝廷贡品。

Chenopodium album,Solanum nigrum, and Amaranthus retroflexus were very susceptible to the herbicides. Polygonum persicaria and Abutilon theophrasti were relatively less susceptible to the herbicides, and Lycopersicon esculentum was not susceptible to it. The relationship between reduction rates of weed biomass and PPM values of weed leaves 2,4, and 6 days after treatment was established.

供试的6种杂草对该混剂的敏感性存在显著差异：红心藜Chenopodium album、龙葵Solanum nigrum和反枝苋Amaranthus retroflexus对该混剂最敏感，ED90值分别为47.65、71.67和29.17g/hm2；春蓼Polygonum persicaria和苘麻Abutilon theophrasti敏感，ED90值分别为96.91、114.20g/hm2；而番茄不敏感。