可靠度

Precision and reliability are two contradictory aspects of the theory of interval estimates. To find a confidence interval of prescribed width and prescribed probability is of groat importance in practical applications, arid thereby sequential procedures have to be employed in many cases.

精确度与可靠度是区间估计理论中互相矛盾的两个方面，寻找同时满足精确度与可靠度的区间估计在实际应用中具有重要价值。

According to the theory of extreme value of independent and identically distributed random variables, the reliability of external unbonded presertressed concrete structures is discussed.

论文讨论了体外筋面积的变化对体外预应力梁可靠度的影响，将其离散化为多个正态分布的随机变量，并根据独立同分布随机变量的极值理论，讨论了体外无粘结配筋对结构可靠度的影响问题。

In the new method, the dynamic equilibrium equation of non-proportionally damped structure is expressed in the iteration form, based on which the inverse operation of the matrices is avoided.

此外，文中还对比了相关失效模式和基于独立重复试验的结构体系可靠度，分析了基于独立重复试验假定的串联可靠度计算方法的误差。

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。

The semi-low normal distribution membership function of fatigue limit is determined, and the anti-fatigue fuzzy reliability compute formula of rotor is deduced. The fuzzy reliability model of rotor anti-fatigue is set up. Taking an internal shaft of the rotor of aero electric generator for an example, its reliability design can be realized by adopting the anti-fatigue reliability design theory presented in the dissertation.

首次确定出了疲劳极限降半正态分布形式的隶属函数，推导出了转轴抗疲劳的模糊可靠度计算公式，建立了转轴抗疲劳的模糊可靠性模型；以航空发电机转子内轴为例，对其进行了抗疲劳的可靠性设计，并用本文建立的抗疲劳的模糊可靠度计算公式，对其进行了模糊可靠性校核。

In this paper,the expanding self_energizing overrunning spring clutch was designed optimally with constraint of strength reliability.

以强度可靠度为约束，对扩张式自激超越弹簧离合器进行了优化设计，在满足强度可靠度的同时，采用计算机可迅速求得一组最佳结构参数。

As a result, the submarine pipeline cannot work normally according to the designed states when the free spanning is becoming longer increasingly, that is to say whether they can complete the preconcerted function in the spare time should be considered.

本文利用可靠度理论展开对海底管线在这一方面的研究，从可靠度的角度研究海底管线发生破坏的极限跨长，为维修决策提供进一步的依据。

Researches in this field are of very significant in improving current structural design methods and would greatly contribute to reliability theory. A theory annoyance model for structural vibration serviceability design is proposed in this research on the basis of structural dynamics,reliability theory and psychophysiology methods.

振动舒适度问题是现代工程结构普遍存在的问题，也是工程结构可靠度研究的一个主要内容，系统地研究振动舒适度问题，对于提高现有的结构设计水平，完善可靠度理论具有比较重要的意义。

A theory annoyance model for structural vibration serviceability design is proposed in this research on the basis of structural dynamics, reliability theory and psychophysiology methods.

本文结合结构动力学，可靠度理论和心理物理学，提出了基于烦恼率的结构振动舒适度设计理论模型，其目的是使工程结构振动舒适度的设计方法从原来的半定量设计阶段提高到定量设计、可靠度设计和优化设计阶段。

A calculation method of reliability for slope stability,whose state function is implicit function,was researched.

利用其计算可靠度指标和验算点，然后将安全系数计算近似方程、隐函数计算方程和验算点结合起来，确定新的展开点和抽样点，并进行近似方程再拟合、可靠度指标的循环计算直到收敛。

Fancy gold-plated dangling earrings with facetted White Opal crystals.

花式镀金悬垂耳环与facetted白欧泊水晶。

This essay chooses the study aim from biology teachers in middle school in Shi Jiazhuang which tells us that most of the middle school biology teachers in Shi Jiazhuang have the"burnout", lower successfulness, individualize.

本文选取石家庄市初中生物教师作为研究对象，运用问卷调查的方法对石家庄市初中生物教师职业倦怠的现状进行调查，调查结果发现，石家庄市初中生物教师这一群体普遍存在职业倦怠，情感枯竭程度偏高，成就感偏低，去个性化程度最为严重。