查询词典 reliability

At the beginning, an engineering method called semi-empirical reliability estimation method is introduced. Then, a detailed introduction of the bootstrap method, which has been widely applied to small sample reliability assessing since it was proposed in 1979, is made immediately. At last, a promoted virtual sample expanding method, that the reliability test sample size is expanded from 2-3 to 10, is proposed on the basis of predecessors research results. And the new method associated with bootstrap method is used to assess the test life lower limit in the case of logarithmic normal distribution.

首先阐述了处理极小子样可靠性评估问题较合理的一种工程处理方法—半经验可靠性评估方法，随后详细介绍了近年来在小子样可靠性评估领域发展迅速的Bootstrap方法，最后在前人研究成果的基础上提出了将样本数从n=2～3虚拟增广至n=10的虚拟增广样本推广方法，将该方法应用于服从对数正态分布的寿命总体，利用Bootstrap方法得到了试验寿命下限的估计，并与已有的半经验可靠性评估方法的结果作了比较分析。

The crack spacing of CRCP changes randomly and has a significant impact on the pavement durability and performance. The direct integration method is used to analyze the reliability for crack spacing and width. The results show that the main factors that affected the reliability are the design crack spacing and the variability of parameters. This paper presents a nomogram for reliability calculation.

CRCP的裂缝间距是随机变化的，裂缝间距的不同会对路面耐久性产生显著影响，本文使用直接积分法计算了CRCP裂缝间距的可靠度，并使用蒙特卡罗法进行了对比，分析参数的敏感性，指出影响可靠性最主要的因素是设计裂缝间距及参数的变异性，给出了CRCP可靠度计算诺谟图。

In order to compare the convergence of the importance sampling based reliability sensitivity analysis and Monte Carlo based reliability sensitivity analysis, the variance and variation coefficient of the reliability sensitivity assessment are derived in this contribution.

为了比较重要抽样与直接Monte Carlo方法在分析可靠性灵敏度时的收敛性，推导可靠性灵敏度估计量方差和变异系数的计算公式，近似计算重要抽样可靠性灵敏度估计量在给定置信度下的置信区间。

Software reliability ; Prediction model of software reliability ; Orthogonal architecture ; Module reliability matrix

软件可靠性；软件可靠性预测模型；正交体系结构；模块可靠度矩阵

There were no significant difference between diabetics in hospital and diabetics who had participated diabetes education in gender,age,marital status,occupation, education level and the form of medical expenses.It is suggested that the two groups come from the same patients. 2.According to the result of content validity and retest reliability,questionnaire of compliance has a good validity and reliability.According to the result of consistence test,collection validity,discrimination validity and construct validity,SF-36 has a good validity and reliability.3.We used self paired comparison to analyze the data of the treatment compliance from the patients who had participated diabetes education and the patients in hospital who hadn\'t participated diabetic education.The results suggest that the treatment compliance of patients is improved as the number of times that these patients participated diabetes education was increased.The treatment compliance of the patients in hospital is improved just in a short-term period,who hadn\'t participated diabetes education.

研究结果1、住院糖尿病患者与参加健康教育的糖尿病患者在性别、年龄、婚姻、职业、文化程度、医疗用度承担形式上均无统计学差异，说明两组人群来自同一整体。2、根据内容效度和重测信度的结果证实允从性问卷具有良好的信度和效度；根据内部一致性检验、集合效度、区分效度和结构效度的结果证实SF-36量表具有良好的信度和效度。3、对参与健康教育的糖尿病患者进行的允从性跟踪调查结果进行自身配对前后比较，并与未参加健康教育的住院糖尿病患者的允从性得分进行比较，发现糖尿病患者治疗允从性随着参加健康教育次数的增多而进步；未参加教育的住院患者治疗允从性在进院和刚出院的短期内有一定进步，但随后逐渐下降至进院前水平。

In the paper, based on the hypothesis that the failure of every poles is independent and by the method of reliability assign and reassign, the difficult problem of disposing the structure system reliability constraints is solved. Based on sensitivity information, the given system failure probability can be replaced by the sum of every element failure probability. And then the structural optimization design based on system reliability is preceded.

针对基于体系可靠性约束优化设计的关键问题一结构体系可靠性的分析和计算，在基于结构各单元失效相互独立假设的基础上，提出了以各单元失效概率之和近似体系失效概率的处理方法，并给出了体系可靠性分配和再分配的方法，以确保结构体系在优化过程中的可靠性，实现了结构基于体系可靠性的优化设计。

Neither reliability models in reliability engineering nor in software reliability can be directly applied to describe the propagation of hardware errors in programs.

无论是可靠性工程还是软件可靠性中的可靠性模型，都难以描述硬件故障在程序中的传播问题。

Evaluation of software reliability, which is an important content of software reliability research, can quantize Parameters of software reliability and make software more reliable.

软件可靠性评估是软件可靠性研究的重要内容，通过软件可靠性评估，量化软件可靠性有关参数，为软件的使用建立信心。

The advantages and limitations of every kind of methods for calculating the failure probability is reviewed. The frist order reliability method, the second order reliability method and many kinds of boundary method have achieved remarkable success and formed nature fields of reliability. However, the precision of these methods decrease as the increase of complexity of problem. The numrical methods are versatile, except numerical intergration is only adaptable to special problems which have small number variables and regular intergral domain. Particularly, the advanced variance reduction techniques own the following character: high precision and a small amount computation. But some questions remain to study in the future because only an initial work about these techniqes is developed.

全面评述了计算失效概率各种方法的优点和局限性，其中经典的解析法包括一次可靠性方法、二次可靠性方法、一阶边界法、Vanmarcke上边界、PENT上边界和Ditlevsen二阶窄边界法，这些方法对于多设计点、变量较多且相关、密度函数不是正态以及极限状态方程较复杂的情况，其计算精度较差；而已有的数值方法却是具有较好的通用性，其中除数值积分法只对变量较少、积分域较规则的特殊问题适用外，各种数值模拟方法均具有较广的适应性，特别是各种改进的方差减小技术，精度高、计算量小，但由于其处在研究的初级阶段，还有许多问题有待于解决。

In chapter 4, which is about the research of corrosion reliability analysis for mechanism, the paper improve the strength method into the reliability method, according to that the regular strength method about corrosion has been somewhat ripely but still doesn't formulate the related Reliability Method.

本文在第四章机构腐蚀可靠性研究，针对腐蚀的常规强度解决方法已较成熟，但还没有形成对应的可靠性研究方法，该章的研究内容为将强度解决方法发展至可靠性分析方法，是方法上特性类别的提高。

Singer Leona Lewis and former Led Zeppelin guitarist Jimmy Page emerged as the bus transformed into a grass-covered carnival float, and the pair combined for a rendition of "Whole Lotta Love".

歌手leona刘易斯和前率领的飞艇的吉他手吉米页出现巴士转化为基层所涵盖的嘉年华花车，和一双合并为一移交&整个lotta爱&。

This is Kate, and that's Erin.

这是凯特，那个是爱朗。