查询词典 fault system

This article defines the strong t diagnosable system of PMC model based on mutual test, gives a series of characters and theorems and puts forward the theory of grouping algorithm for the system level fault diagnosis ,so the complexity of system level fault diagnosis is greatly decrease

定义了基于互测 PMC模型的强 t-可诊断系统，得出了一系列的性质和定理，提出了系统级故障诊断的集团算法，从而减少了系统级故障诊断的复杂度。

This expert system can distinguish fault patterns,analyze fault reasons and put forward proposals by using this expert system to commutator of some fluid drive system . The result basically conformed to the reality, and it had the very good true value .

运用本专家系统对某液压传动系统的换向阀进行分析和诊断，结果表明该专家系统能对提升机进行故障诊断和故障原因分析，运行结果基本符合实际，具有很好的实用价值。

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。

Based on the fault tree of the cooling water system in asphalt gas decontaminating for carbon calciner,quantified evaluating system of reliability of cooling water system is set up by using of quantified analysis theory of fault tree.

在建立焙烧炉沥青烟气净化系统中冷却水系统故障树的基础上，运用故障树定量分析理论，建立了冷却水系统可靠性定量评价体系，对该系统发生故障的概率作出判断，从而能够及时、合理地确定冷却水系统的状况，以便及时采取应变措施，保持系统可靠运行

Based on the spaceflight technology innovation program of"Research on the Testing Method of Reliability----Research on the Fault Diagnostic Expert System and Neural Network"and the Pre-Research Defense Projects of"Research on longevous service and high reliability of Satellites"of the National tenth-five-year plan, taking attitude control system of a satellite as object, the theories and the applications of the neural networks and expert system in the fault diagnosis are studied in this dissertation.

本文以航天技术创新基金项目&可靠性试验方法研究——故障诊断的专家系统神经网络技术研究&和国家武器装备&十五&预研项目&卫星长寿命高可靠性技术&为背景，以卫星姿态控制系统为研究对象，在理论和实践两个方面对神经网络和专家系统相结合的故障诊断技术及其在卫星中的应用进行了研究。

For the coherence in metadata, a serverless architecture model based on all the data and metadata is adopted because they can be storaged in all place and can be dynamicly transferred; The associative mode of the disc metadata's journal structure and the memory metadata's journal structure can turn away the timing waste in scanning the enormous file system by fsck; Afterwards a intercalating checkpoint algorithm and a rollback recovery algorithm based on the metadata fault tolerance in cluster file system is implemented; A fetched stochastic process model is setup to analyze availability of this system, it can reduce the inspecting fault time and then they support high availability.

为了达到复杂的元数据管理一致性，采用了一个无集中式服务器的体系结构，保证所有的数据和元数据能够存放到系统的任意地方，并且在操作的过程中可以动态迁移；采用元数据的磁盘日志结构和内存日志结构相结合的方式对元数据进行管理，减少了fsck对庞大的文件系统中元数据的扫描时间；为了实现故障恢复，提出了元数据容错的设置检查点算法和回卷恢复的算法，提高了文件系统元数据服务的可用性；给出了基于元数据故障的随机过程模型，可以通过减少检错时间提高文件系统的可用度。

In order to improve the defects of the pneumatic transmissi on system u sed presently in mines,a kind of hydraulic transmission system based on fault t o lerant technology has been developed The working principle of the system is an a lysed in this article and the theoretical analysis in the fault tolerant techn ology is also mad

针对目前矿山使用的气动装载系统的缺点，提出了一种基于容错技术的液压传动方案，分析了该系统的工作原理，对该系统中应用的容错技术进行理论分

A search strategy based on switch group is devised in this paper, which enhances the efficiency and accuracy of search;establishing a fast ratiocinating fault restoration model which is based on EMS data, and adopting the search strategy to form the connecting relation of the equipments in the power system dynamically, so it is not necessary to do special maintenance to the system when the frame of the network changes;perfecting the fault restoration modules and ensure that the restoration scheme accords with the situation of locale and the operating regulations and the system is practical;adopting flow to check the security of all the restorable paths of the load island, which provides the gists to choose the restorable paths.

本文提出了一种基于开关刀闸组的搜索策略，提高了搜索的效率和准确性；建立了基于EMS数据的快速推理故障恢复模型，通过网络搜索动态生成系统内各设备的网络连接关系，网架结构变化时无需对该系统特殊维护；完善了故障恢复步骤，使恢复方案确实符合现场实际情况及操作规程，具有实用性；采用潮流计算校验孤岛各恢复路径的安全性，为各条恢复路径选择提供依据。

As the main research object in this dissertation, DF1-1 dispir is the typical structure in diapirs area in Yinggehai basin. On the basis of analyzed logs, geochemistry materials and a large numbers of seismic profiles, the dissertation has discussed the tectonic stress field since late Tertiary, the distribution regularity of THE fault system and its genetic mechanism in DF1-1, genesis and distribution of overpressure system, characteristics of OFA. The innovative research in the dissertation is about coupling relationship between fault system and OFA.

本文以盆地内底辟区典型的DF1-1构造为重点，采用多学科结合、局部构造解析与区域构造分析结合以及物理模拟与数值模拟结合等方法，在详细解剖钻井、分析化验资料，及有关的地震剖面的基础上，分别探讨了盆地晚第三纪以来的构造应力场；DF1-1底辟构造断裂系统的分布规律及其成因机制；底辟区超压体系的成因、分布、超压流体活动特征。

Virtual instrument technology is utilized and products are focused in fault detection system for cable inflator/air pressure monitor system and, fault detection system for communication fibre and it was categorized as 2001 National Torch Plan.

公司应用虚拟仪器技术，专为电信系统研制生产的电缆充气机/气压监测系统、虚拟通信光纤故障检测系统，使得通信故障检测和故障定位更精确，管理更方便，虚拟通信光纤故障检测系统更被列入2001年国家级火炬计划。

You can snipe the second and third union leaders from this position.

您可以鹬第二和第三工会领袖从这一立场出发。

Aiming at the currently shortage of XML streams quality detecting, this paper proposes a new forecasting method of XML streams quality by least squares support vector machines, which is used the method of XML keys' vector matrix as windows, and vector product wavelet transform to multilevel decompose and refactor the XML streams series, that can fulfill real-time checking demand of XML quality, and ensure constraint, consist- ency and integrality. For even more adapting net load, it proposes a control strategy by weight and adaptive adjustment to ensure XML streams quality.

针对当前XML数据流质量检测存在的不足，提出构建XML键的矢量矩阵作为窗口，利用矢量积小波变换多级分解与重构XML数据流，再结合最小二乘支持向量机对XML数据流质量进行预测的一种方法，满足XML数据流质量重构时实时检测的要求，保证XML数据的约束性、一致性与完整性；为了更好的适应网络负载，采取加权与自适应窗口调整等调度策略充分保证XML数据流的质量检测。