查询词典 at fault
- 与 at fault 相关的网络例句 [注:此内容来源于网络,仅供参考]
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Based on varying process of generator terminal parameters after excitation fault, shortages of excitation protective principle of static stability boundary and asynchronous impedance boundary are analyzed. It proposed that excitation fault research relates to large-disturbance stability. Because dynamic power-angle character of generator after excitation fault is non-sinusoidal, there are differences between dynamic power-angle character and static state power-angle character. So it isn't ideal to protective operation result based on small-disturbance stability and static stability boundary criterion. At the same time, it proposed that asynchronous boundary impedance criterion is a constant reactive power circle moving adown j Xd′. It can ensure complete loss-of-excitation generator measuring impedance enter into the circle, but can't ensure the other condition measuring impedance including impossible losing synchronism enter. So loss-of-excitation protection would be maloperation when system voltage drops short and recovers or generator rejects load.③Based on stability principle, it puts forward setting conditions and calculation method of generator loss-of-excitation protection by direct measuring power-angle.
以励磁故障后发电机端的相关参数的变化为基础,通过对以静稳定边界和异步阻抗边界作判据的两类三种现行励磁保护在原理上存在的缺陷分析,发现:励磁故障是一个大干扰稳定性问题,励磁故障后的发电机的动态功角特性与静态功角特性有很大的差异,已远非正弦曲线,因此基于小干扰稳定性原理、以静稳定边界作判据的保护必然动作不理想;异步边界阻抗判据是一个下移j Xd′的等无功阻抗圆,它可以保证完全失磁后的发电机测量阻抗能进入该阻抗圆,但不能保证完全失磁之外的其它状态不会进入该阻抗圆,因此在系统电压短时下降或发电机突然甩负荷等情况下可能启动该保护使之误动。
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Along the fault we may recognize at least eight fault scarps or steep fault slopes whose heights are 0.33-0.62 m, 4.3-5.2 m, 6.8-8.3 m, 10-11.8 m,~16 m, 20-28 m, 45-50 m and 65-80 m respectively, as well as river terraces, diluvial fans and spring sinter platforms that may largely correspond with these fault scarps.
沿断层至少可以识别出高度分别为0.33~0.62m、4.3~5.2m、6.8~8.3m、10~11.8m、约16m、20~28m、45~50m和65~80m的8套断层崖或断层陡坎,以及与各级断层崖大致对应的河流阶地、洪积扇和泉华台地。
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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。
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Company Profile Beijing Xinyu win equipment limited liability company operating mainly in the production and domestic and international advanced testing equipment, instrumentation, and diagnostic tools, as well as introduce advanced test, measurement of new technology for operating purposes. A: electrical fire, building fire detection and public safety facilities, equipment detectors B: lightning protection, lightning protection device detection equipment, mine detection device safety box C: Fire Fire Safety Inspection and Testing equipment, and investigate the cause of the fire equipment, police station fire alarm Services and equipment D: fire inspection and fire investigation equipment boxes, fire investigation kits, fire detection equipment to determine the scene Product E: Fire Engineering Detect boxes, cartons Detect building fire service installations, fire detection electrical box F: Airport Fire fire inspection equipment, subway Fire Safety Detect Box G: boilers, pressure vessels and special equipment, elevator equipment Detect H: Victoria seized power telecommunications equipment boxes, mechanical state patrol boxes I: Detect safety boxes, traffic accident investigation boxes, property management Detected me J: Public environmental hygiene Detect boxes, boxes of food safety at the scene detection, occupational health care at the scene Detect boxes, cartons Detect Radiological Protection at the scene, the situation of sanitation and disinfection Detected me, health production supervisor at the scene seized me K: Ultrasonic leak detector, ultrasonic spectrum analyzer, ultrasonic full-function fault detection system L: fire using infra-red thermal imaging, infrared imaging system for industrial use, the security-type infra-red thermal imaging M: Energy Conservation Supervision and Testing Instruments instrument N: Private Product: 3 1/2- 8 1 / 2 handheld / desktop Digital Multimeter, cross-DC clamp level pressure ammeter, temperature gauges, tachometer, digital megohm table, grounding resistance tester, desktop multimeter, digital frequency meter smart, figure synthesis / function signal generator, desktop digital electric bridge, oscilloscopes, infrared thermometer, vibrometer, digital DC regulated power supply, 5 1 / 2 hand-held multi-function calibrator field process instrumentation. O: agent Products:, infrared thermometer, infrared, ultrasonic full-function fault leakage / discharge detection device, flammable / toxic gas detector, harmonic power quality analyzer, portable ultrasonic flowmeter, insulation / Ground Resistance Tester, temperature, current / voltage, the process of signal, thermal resistance / thermocouple, pressure, loop calibrator, such as electronics, telecommunications, electricity, petroleum chemical industry, safety inspection, steel smelting, public environmental protection, fire detection Secret rescue, fire detection equipment, special equipment testing, military field equipment dedicated monitoring equipment and tools.
公司简介北京新宇胜利仪器有限责任公司主要以生产和经营国际,国内先进的检测仪器仪表和设备诊断工具以及介绍先进的测试,测量新技术为经营宗旨。A:消防电气、建筑消防设施检测和公共安全侦检仪器设备B:防雷、避雷装置检测仪器设备、防雷装置安全检测箱C:消防防火监督检测装备、火灾原因调查装备、公安派出所消防警务装备D:防火检查与火灾勘查仪器箱、火灾勘查工具箱、消防产品现场判定检测仪器E:消防工程检测箱、建筑消防设施检测箱、消防电气检测箱F:机场消防防火检查仪器设备、地铁消防安全检测箱G:锅炉、压力容器和特种设备、电梯检测仪器H:电信电源维检仪器箱、机械状态巡检箱I:交通安全检测箱、交通事故勘查箱、物业管理检测箱J:公共卫生环境检测箱、食品安全现场检测箱、职业健康监护现场检测箱、放射防护现场检测箱、卫生消毒状况检测箱、健康品生产现场监检箱K:超声波泄漏检测仪、超声波频谱分析仪、超声波全功能故障检测系统L:消防用红外热像仪、工业用红外热像仪、本安型红外热像仪M:节能监督检测仪器仪表工具N :自有产品:3 1/2-8 1/2位手持/台式数字多用表,交、直流钳形高低、压电流表,温度仪表,转速表,数字兆欧表,接地电阻测试仪,台式多用表,数字智能频率计,数字合成/函数信号发生器,台式数字电桥,示波器,红外测温仪,测振仪,数字直流稳压电源,5 1/2位手持式多功能现场过程仪表校验仪。O:代理产品:,红外测温仪,红外热像仪,超声波全功能故障泄漏/放电侦测仪,可燃/有毒气体检测仪,电力质量谐波分析仪,便携式超声波流量计,绝缘/接地电阻测试仪,温度、电流/电压、过程信号、热电阻/热电偶、压力、回路校验仪等电子、通讯、电力、石油化工、安全检查、钢冶、公共环保、消防特勤侦检救援、消防检测设备、特种设备检测、军事领域的专用仪器监测设备与工具。
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It was shown that the 3D deformation in the tunnel at soft rock was obvious at F7 fault and phyllite section, with the characteristics of large deformation and longitudinal displacement developing in the opposite direction of work face and being stable at a distance about 2.0 times of tunnel diameter from the work face. And the 3D displacement of tunnels at F7 fault zone developed in an uneven symmetrical way, while there was good consistency for 3D deformation at slate section. Furthermore, there was a mutally verifying relationship between 3D deformation and ground stress distribution of tunnel region.
结果表明,F7断层和千枚岩地段软岩隧道三维位移十分明显,具有隧道大变形特性,其纵向位移背离开挖面方向发展并在相距开挖面约2.0倍洞径时趋于稳定状态;F7断层地段隧道三维位移呈不均匀对称地发展变化,而板岩地段三维位移变化的一致性较好;隧道三维变形规律与隧道区域地应力场的分布存在相互印证关系。
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Aimed at the problem of choosing the initial value when the Newton method is used to compute the controlling unstable equilibrium point, a practical and rigorous solving scheme was presented: by identifying the controlling load bus of the given fault, and using the Thevenin equivalent circuit to represent the rest of the system at the state of the post disturbance stable equilibrium point, using the steady equivalent circuit to represent the induction motor in composite load, and then using the torque characteristics of induction motor, a point near the CUEP is gained to be the initial value. The second order normal forms was used to approximate the stable manifold of CUEP, and the local approximating boundary of the region of attraction of the post disturbance stable equilibrium point was gained. Then just by simulating the state of the system at the fault clearing time, the transient voltage stability of the system could be determined.
针对采用牛顿法求取故障后系统主导不稳定平衡点(controlling unstable equilibrium point,CUEP)存在的初值选取难题,提出一种实用但不失严谨的解决方案:通过识别给定故障的主导负荷母线,对主导负荷母线以外系统由故障后稳定平衡点处的状态进行戴维南等值,对负荷中感应电动机部分采用其稳态等值电路,再由感应电动机的转矩特性求得CUEP附近的一个点作为近似的CUEP,以此为迭代初值可靠求得CUEP;采用二阶正规型来近似CUEP的稳定流形的方法求得近似的局部吸引域边界;由仿真得到故障清除时刻系统的状态并根据该状态是否位于吸引域内判断系统的暂态电压稳定性。
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The research results indicate that (1) fault-failure-type water inrush occurs more often than floor-failure-type water inrush under the existence of normal fault;(2) the influence of fault step and dip angle on the feature and position of water inrush is not evident, and water inrush may occur at both coal layer and the floor near working face;(3) the distance of coal column for preventing water inrush should be increased with the increase of fault step and dip angle.
得出以下结论:(1)当存在正断层时,多发生断层破坏型突水,而底板破坏型突水发生的几率较小;(2)突水性质和突水发生位置受断层断距和倾角的影响不大,煤层和采煤工作面附近的底板围岩都可能成为突水涌出点;(3)随着断层断距和倾角的增加,防水煤柱的合理留设距离应随之增大。
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Based on core measurements from IODP expedition 316 of the first stage of the NanTroSEIZE program, we analyze deformational and sedimentary structures at the core scale at four sites, C0004, C0006, C0007 and C0008, at the toe the accretionary prism along the Nankai Trough. We also discuss the relationships between structures at the core scale and large scale structures like splay fault and frontal thrust fault.
通过参加IODP的日本南海海槽发震带研究项目第一阶段316航次所收集到的大量第一手数据和资料,分别在4个站位上(C0004,C0006,C0007,C0008)对日本南海海槽增生楔前缘岩芯尺度上的构造变形进行了详细分析,并且讨论了岩芯尺度上的构造变形与增生楔中大尺度的非序列分支逆冲断层和前缘逆冲断层的构造变形之间的关系。
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In the field of liability without, negligence, causativeness of the parties action should be compared when only the injured party has fault. Causativeness of the dangerous element and fault element should be compared when both parties have fault. After should compare the degrees of fault of both parties, and at last definite in which degree to diminish the compensation liability of the injuring party.
在无过失责任领域内,当只有受害人过错时,应当比较双方行为的原因力;当双方均有过错时,应当比较危险因素与过错因素各自的原因力,在确定了过错因素的原因力后,再比较双方的过错程度,最终确定应在多大程度上减轻加害人的赔偿责任。
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The results of rupture landform investigation indicate that this fault is one of weak active faults in Holocene, its average vertical slip rate is 0.5~0.6mm/a. On Jun. 15, 1975, Liuba M6.2 earthquake in Kangding occurred on the fault. The macro-epicenter located at Shuobu-Moda, Liuba county. The direction of long axis of meizoseismal area is same as that of Yunongxi fault trend. The occurrence of the earthquake is resulted from the newest activity of the fault.
断错地貌研究结果表明,该断裂为一条全新世弱活动断裂,平均垂直滑动速率为0.5~0.6mm/a左右。1975年1月15日康定六巴6.2级地震发生於该断裂上,宏观震中位置位於六巴乡溯布-莫达村附近,极震区长轴方向与玉农希断裂走向一致,是该断裂最新活动的表现。
- 推荐网络例句
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Plunder melds and run with this jewel!
掠夺melds和运行与此宝石!
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My dream is to be a crazy growing tree and extend at the edge between the city and the forest.
此刻,也许正是在通往天国的路上,我体验着这白色的晕旋。
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When you click Save, you save the file to the host′s hard disk or server, not to your own machine.
单击"保存"会将文件保存到主持人的硬盘或服务器上,而不是您自己的计算机上。