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failure number     
相关语句
  故障次数
     ANALYSIS AND CALCULATION OF EQUIVALENT FAILURE NUMBER OF LARGE GENERATING UNITS
     大型发电机组等效故障次数的分析与计算
短句来源
     Assume that the system after repair is not "as good as new", by using geometric processes we consider a replacement policy N based on the failure number of the system. The problem is to choose the optimal replacement policy N such that the long-run average cost per unit time is minimized.
     在该系统为”修复非新”时,我们利用几何过程考虑了以系统的故障次数N为更换策略,以长期运行单位时间内的期望费用为目标函数,通过目标函数最小化确定了最优更换策略.
短句来源
     Based on the assumption that the duration of the scheduled outage of components is a definite value and the failure outage is a random event,the failure rate and repair rate being constant,the exact and approximate solutions for the average failure outage time,the average failure number and the average failure duration of one or two components during another component's scheduled outage are deduced.
     本文假定部件的计划停运持续时间是确定性参数,而部件的故障停运则是一随机事件,且其故障率和修复率均为常数。 在此基础上,本文推导出在一个部件的计划停运期间另一个或两个部件平均故障停运时间、平均故障次数及平均故障持续时间的精确解和近似解。
短句来源
     By using the method of Vector Markov Process, the fallowing reliability indices are derived: (1) availability and reliability of the system; (2) the mean failure number and the mean renewal number of the system during (O, t].
     我们用向量马氏过程方法求得了它的可靠度和可用度,在(0,t)中的平均故障次数和平均更新次数。
短句来源
     In the system,the life distributions and the repair distributions of these two units are assumed to be the exponential distributions, and it is not "as good as new" after the failed units repair. Under this assumption, by using the geometric process and the method of supplementary variable, we derive some reliability indices. We take the failure number and the long-run expected benefit per unit time as the replacement policy and the objective function respectively.
     本文研究了两个不同部件、一个修理工组成的冷贮备可修系统,假定它们的寿命分布和维修分布均为指数分布,但故障后均不能修复如新时,我们利用几何过程和补充变量法求得了一些可靠性指标,并以故障次数为策略,以长期运行单位时间内的期望效益为目标函数,确定了最优的故障次数,使得目标函数达到最大值,从而保证了系统的可用度。
短句来源
更多       
  失效次数
     2)The failure number during the "server busy period";
     2)在“服务员忙期”内的失效次数;
短句来源
     3)The expected failure number and its asymptotic expansion during \$(0,t]\$; 4) The downtime during "the server busy period";
     3)在(0,t]内的平均失效次数及其渐近展开;4)在“服务员忙期”内的失效时间;
短句来源
     5) The expected downtime and its asymptotic expansion during \$(0,t]\$, and obtain a series of results, while simultaneously give out some asymptotic formulas for calculating the expected failure number and expected downtime during \$(0,t]\$.
     5)在(0,t]内的平均失效时间及其渐近展开,得到一系列结果,并给出了便于计算(0,t]内的平均失效次数和平均失效时间的近似式
短句来源
  故障数
     According to test results, the reliability analysis on the data of accumulative test time, accumulative failure number of times and average non failure time in the operative mechanism, under voltage release and electromagnet to switch on were carried out.
     根据试验结果 ,对操作机构、欠压脱扣器和合闸电磁铁中的累积试验时间、累积故障数及平均无故障时间等数据进行了可靠性分析。
短句来源
     The paper analyzes the inconsequence of the primitive data and ″failure number per thousands auto″ and presents the computing method of correctional ″failure number per thousands auto″.
     通过分析原始数据和“千车故障数”计算的不合理性,提出了改进的千车故障数的计算方法,并对原始数据进行变换得到了合理的数据表.
短句来源
     The coefficient table for reliability design of experiment lives was give with the confidence 0.95,the reliability 0.9987 and the shape-parameter 3.6.By the method,the test time can be obtained for the given reliability,reliable life,failure number and sample number,or the maximum failure number can be gotten for given life,reliability,confidence,the sample number and experiment time.
     文中给出了置信度为95%、可靠度为99.87%、形状参数为3.6时的可靠寿命抽样表。 采用本文公式可确定给定可靠度、设计寿命、破坏数及子样数时的试验截尾时间,或者给定设计寿命、可靠度、置信度、子样数及试验时间时试件的最大允许故障数
短句来源
  失效数
     Properties of Failure Number N(t) in the Case of Varied Life Distributions
     寿命不同分布时失效数N(t)的性质
短句来源
     The sampling tables full apply to samplesize n ranging from 3 to 10 with truncating failure number r_c rangingfrom 3 to n.
     抽样表适用于样本大小3≤n≤10,截尾失效数为3≤r_c≤n的场合。
短句来源
     Due to the determination on the failure probability of zero failure data has rather big influence upon the estimated result of distributed parameters, the Bayes estimation formula of exponential distributed failure probability of zero failure data determined by method of decrease function and the estimation formula of Weibull distributed reliability of zero failure data determined by method of equivalent failure number were presented, and the fuzzy weighted linear regression was carried out on the distributed parameters.
     由于无失效数据失效概率的确定对分布参数的估计结果有较大的影响,给出减函数法确定指数分布无失效数据失效概率的 Bayes估计式和等效失效数法确定威布尔分布无失效数据可靠度的估计式,并对分布参数进行模糊加权线性回归。
短句来源
     LSF-ODMRP introduces link status forecasting technique to reduce the routing failure number and packet delivery delay,and improves the performance of networks with a small increase of protocol overhead. At the same time,LSF-ODMRP reserves the key merits of ODMRP such as high throughput and energy efficiency in conditions with frequently changing topology.
     该协议继承了ODMRP协议的按需式路由发现和更新,并采用了链路状态预测机制LSF(Link Status Forecasting),大大减少了路由失效数并缩短了分组投递延迟,提高了网络性能。
短句来源

 

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    Based on the assumption that the duration of the scheduled outage of components is a definite value and the failure outage is a random event,the failure rate and repair rate being constant,the exact and approximate solutions for the average failure outage time,the average failure number and the average failure duration of one or two components during another component's scheduled outage are deduced.With the proposed method,the failure and scheduled outages can be considered both independently...

    Based on the assumption that the duration of the scheduled outage of components is a definite value and the failure outage is a random event,the failure rate and repair rate being constant,the exact and approximate solutions for the average failure outage time,the average failure number and the average failure duration of one or two components during another component's scheduled outage are deduced.With the proposed method,the failure and scheduled outages can be considered both independently and interdependently.In the latter case,the scheduled outage of one component begins only when one or two other components are in service.

    本文假定部件的计划停运持续时间是确定性参数,而部件的故障停运则是一随机事件,且其故障率和修复率均为常数。在此基础上,本文推导出在一个部件的计划停运期间另一个或两个部件平均故障停运时间、平均故障次数及平均故障持续时间的精确解和近似解。本文提出的方法既可以考虑部件的计划停运和故障停运互相独立,也可以考虑互不独立的情况,即一个部件的计划停运仅在另一个部件或两个部件均完好时才开始。

    In reliability, the estimation of the failure time has an impontant significance. In this paper, an estimated method of the failure time of the product with the exponential distribution is presented. Using imformation given by the sampl size, the failure number and the failure times observed, the estimated model is built by means of data accumulated. The failure times can be estimated and the point estimation of parameter in the exponential case can be obtained.

    在可靠性工程中,产品的失效时间预测无论在时间、财力、物力“人力上都具有很大的意义。本文提出了一种其寿命分布服从指数分布的产品失效时间的预测方法。该方法利用抽样样品数、有限的产品失效数以及观察到的失效时间所提供的信息,通过数据累加方式进行数据生成,然后建立预测模型,从而对失效时间进行预测。同时,还可以得到指数分布参数的点估计值。

    The work was carried out to investigate the effects of clonidine on Ach quantal release of presynaptic nerve terminals in guinea pig celiac ganglia in vitro by means of intracellular recording technique. After perfusion of celiac ganglia with clonidine ( 10μmol/L ) for 7 ~10 min, the frequency of spontaneous miniature excitatory postsynaptic potentials ( mEPSP ) which was increased by high K+ (15 mmol/L ) , diminished about 35% with little change in amplitude. Under condition of low Ca2+( 0.5mmol/L )/high Mg2+(...

    The work was carried out to investigate the effects of clonidine on Ach quantal release of presynaptic nerve terminals in guinea pig celiac ganglia in vitro by means of intracellular recording technique. After perfusion of celiac ganglia with clonidine ( 10μmol/L ) for 7 ~10 min, the frequency of spontaneous miniature excitatory postsynaptic potentials ( mEPSP ) which was increased by high K+ (15 mmol/L ) , diminished about 35% with little change in amplitude. Under condition of low Ca2+( 0.5mmol/L )/high Mg2+( 5.5mmol/L ) presynaptic nerve was repetitively stimulated by 200 pulses ( 1 Hz), the failure number of EPSP increased from 82 to 145 in 200 stimuli and the quantal content ( m ) decreased about 62% with little change in quantal size ( q ) under clonidine ( 10μmol/L ) action. It is indicated that clonidine can decrease Ach auantal release from presynaptic nerve terminals without effecting Ach content in vesicles, and is one of the mechanisms for depressant effect of clonidine on synaptic transmission of the sympathetic ganglia.

    应用细胞内生物电记录技术,观察到可乐定使离体豚鼠腹腔神经节突触前神经末梢自发的微小兴奋性突触后电位(mEPSP)频率减少,使刺激突触前神经引起的乙酰胆硷(Ach)量子释放的失败机率增加,平均量子含量减少,但对平均量子大小无影响,表明可乐定能减少突触前神经末梢Ach的量子性释放,但对Ach在囊泡中的平均含量无影响。本工作提示可乐定对交感神经节突触传递的阻断作用与可乐定减少突触前神经末梢Ach量子释放有关。

     
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