系统树

On the basis of the hereinbefore analysis and investigation , establishes the top event and takes a Fault Tree Analysis for it after considering production practice and so on .

在以上的分析、研究基础之上，在对生产实践等因素的全面考虑后对系统进行了顶事件的确定并对此顶事件进行了故障树分析。

Electric power system Reliability Fault tree Top event Minimal cut set

电力系统；可靠性；故障树；顶事件；最小割集

Electric power system station blackout fault tree top event failure mode component importance

电力系统；全厂断电；故障树；顶事件；失效模式；重要度

Event tree method is the basic technology of safety risk analysis, but the credi bility of analysis mainly depends on the precision of failure probability parame ters'o estimate of control systems.

事件树方法是安全风险分析的基本技术，其分析结果的可信度在很大程度上取决于控制系统失效概率估计的精度。

Therefore, it is necessary and exigent to study the new approach of fault diagnosis for substations.

论文以粗糙和模糊决策树为基础，系统的研究了新型变电站故障诊断模型和诊断方法。

This paper studies the design and implementation of fault diagnosis expert system.

本文主要研究了基于故障树的远程故障诊断专家系统的构建和实现。

They can be classificated to two kinds. One kind is build by photomultiplier; another kind is build by MCP. The mechanism of delayed luminescence is discussed with subradiation. A photon count system is built. To proof the biophoton is a kind of ultra weak photon stream originate from exothermic reaction, and primarily discuss the relationship between the delayed luminescence and proteins activity, we chose microphyllous banyan leave , ficus elastica leave, gingkgo leave, Chinese fan palm leave, and cinnamomum camphora leave as biological samples. The ultra weak photon emission from normal biosamples, and proteins inactivated biosample were measured separately with photon count system. The results showed that the delayed luminescence of biosamples have

在研究过程中，作者从辐射陷获的角度讨论了延迟发光的产生机制，对生物光子的生物化学起源与相干场起源的统一性进行了探索；自行搭建了单光子探测系统；测量了小叶榕树、印度橡树，银杏树，蒲葵树香和樟树等多种植物叶片样品的延迟发光，获得了大量实验数据；为了证明生物光子是一种起源于放热化学反应能量释放的微弱光子流，并初步探讨生物蛋白活性与延迟发光衰减之间的关系，测量了正常生物样品、生物蛋白灭活样品的延迟发光，同时测量了多种不含蛋白质的无机化学体系作为比对，实验结果和实验数据的回归分析表明：弱光子发射来源于放热的化学反应，延迟发光的强度与衰减时间与生物蛋白活性密切相关。

The results of calculation indicate that FETA method applied is better to know the rules of accidents about submarine structure system.

计算结果表明，采用模糊事件树方法有利于了解潜艇结构系统事故的规律。

Up to this time, the major challenge to sign language recognition is how to develop approaches that scale well with increasing vocabulary size In this paper, an approach to large vocabulary, continuous Chinese sign language recognition is presented, which uses subwords instead of whole signs as the basic units Since the number of subwords is limited, HMM based training and recognition of the CSL signal become more tractable and have the potential to recognize enlarged vocabularies Furthermore, the proposed method facilitates the CSL recognition when finger alphabet is blended with gestures About 2400 subwords are defined for CSL One HMM is built for each subword, and then the signs are encoded based on these subwords A decoder that uses tree structured network is presented Clustering of the Gaussians on the state, language model and N best is used to improve the performance of the system Experiments on a 5119 sign vocabulary are carried out, and the correct rate is over 90% for continuous sign recognition

迄今为止，手语识别面临的最大问题是如何解决词汇集易扩充的连续识别提出一种大词汇量连续中国手语识别方法，将词根作为识别基元，由于基元的数目是有限的，因此基于HMM的手语信号的训练和识别变得比较容易处理，可以实现更大词汇量的识别除此之外，所提方法还有利于实现手势语和手指语的混合识别从中国手语中共整理出2 4 0 0多个词根，为每个词根建一个并行的HMM模型，对各数据流的HMM模型进行聚类，确定出手语识别的基元根据这些基元对手势词编码，并建立了树状搜索网格，使用状态结点上高斯密度函数聚类、语言模型和N Best方法提高系统的速度和精度对 5 119个手语词做了实验，连续语句的识别率可在 90 %以上

Speculating on the origin of Gaultheria, two different hypotheses were suggested, one of Gondwanan origin, and the other of Laurasian origin.

本文概述了近年来白珠树属的分子系统学和生物地理学研究进展，并对该属尚存的一些问题进行了讨论。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。