查询词典 fault

This paper presents and discusses some generating principles and methods of the test graph on the system level fault diagnosis about random test graph,limit t fault diagnosable test graph, t fault diagnosable test graph and so on.

提出并研究了系统级故障诊断测试图中任意测试图、受限t可诊断系统测试图和t可诊断系统测试图的生成原理及方法，还给出了一个典型测试图的生成实例。

Firstly, we introduce the technology of seismic geometric attribute for fault identification detailedly at home and abroad. Secondly we study the coherence, texture,curvature attribute and tricolor display technology of RGB to identify fault; In the part of coherence,we compare the traditional algorithms with model and actual data,mainly study the geometric structural tensor and wavelet multi-scale sub-frequency coherent algorithm; In the part of texture attribute, we introduce texture energy, texture contrast, texture entropy and texture homogeneity attribute.By merging texture attributes of different directions,the effect are more clear; In the part of curvature attribute,we study and analyze fractional-order curvature attribute's extraction and its application in fault identification; The RGB display technology mainly introduces how to merge multi-attributes in order to getting more richer and more clearer information.

首先具体先容了地震几何属性识别断层技术的国内外研究现状；然后分别研究了相干属性、纹理属性、曲率属性和RGB三原色显示技术来识别断层；其中相干属性通过模型和实际资料对传统相干体算法进行了对比，重点研究了几何结构张量相干体算法和小波多标准分频相干体算法；纹理属性主要先容了纹理能量、纹理对比、纹理熵和纹理一致性属性，通过对不同方向的纹理属性进行融合，效果更清楚；曲率属性重点分析了分波数曲率属性提取及其在断层识别中的应用；RGB三原色显示技术则主要先容了如何进行多属性融合来或得更丰富、清楚的信息，在此基础上开发了基于。

To solve the problem that accuracy of traditional fault location algorithm for traction networks is affected by integer, non-integer harmonics, electric locomotive and fluctuation of traction line s parameters, a novel fault location algorithm is presented which uses fault-generated transient voltages measured at single terminal.

针对牵引网目前广泛应用的故障测距算法易受整次、非整次谐波、机车负荷以及线路参数波动的影响，提出一种利用线路单端暂态电压进行精确故障测距的新算法。

By re-constructing the system, the residual error dynamic characteristics of unknown input and fault signals including unknown disturbances and modelling error are obtained. The energy norm indexes of disturbance and fault signals of residual error are selected separately to reflect the restraint of disturbance and the sensitivity of faults, and the design of fault detection observer is described as an optimization problem.

通过对系统进行重构，获取了包括未知扰动、建模误差等未知输入信号和故障信号的残差动态特性，分别选取残差的扰动信号和故障信号的能量范数指标来体现其对扰动的抑制作用和对故障的灵敏性，并将故障检测观测器的设计描述为一个优化问题。

The essence of the fault diagnosis technology is to know the state of the equipment in the process of running, to forecast its reliability, to determine its normality or exceptionality, to discovery fault earlier and estimate and identify its reason, position and criticality. It is also to predict the development trend of fault and make decision through its concrete status.

设备故障诊断技术，其实质是了解和掌握设备在运行过程中的状态；预测设备的可靠性；确定其整体或局部是正常或异常；早期发现故障，并对其原因、部位、危险程度等进行识别和评价；预报故障的发展趋势，并针对具体情况做出实施维护决策的技术。

Normal fault - a dip-slip fault in which the block above the fault has moved downward relative to the block below.

正断层－断层上面的岩体相对于下面的岩体作向下运动的一种倾滑断层。

Active fault ; Paleoearthquake ; New activity ; Fault scarp ; fault subsection

活动断裂；古地震；新活动；断层陡坎；断裂分段

Along the Daqingshan Piedmont Fault exist typical tectonic landforms, which are fault scarp, 3 orders of piedmont terrace, 5 orders of river terrace and 3 orders of alluvial fan, all carefully dated and measured. All these landforms display the intense vertical movement of this fault.

沿大青山山前断裂发育典型的构造地貌，计有夷平面、3级山前台地、5级河流阶地和3期洪积扇，基岩断层崖和全新世断层陡坎分布广泛，标志着断裂强烈的垂直差异性升降运动和间歇性活动的特点。

With the fast expand of FPGA devices, the structure of FPGA becomes more complex, a large number of fault s is difficult to use traditional methods for testing, Therefore, the FPGA device fault testing and fault diagnosis method for a more comprehensive study is of great significance.

随着FPGA器件的迅速发展，FPGA的密度和复杂程度也越来越高，使大量的故障难以使用传统方法进行测试，因此，对FPGA器件的故障测试和故障诊断方法进行更全面的研究具有重要意义。

Fault-tolerant software ; fault-tolerant computer ; fault tree ; reliability

容错软件；故障树；可靠性；余度计算机

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。