失效

Experiment scheme has been designed for the test of composite material character gating and acquire the four critical values of strain invariants in strain invariant failure theory which are the basic data for finite analysis.

在有限元建模过程中，采用了非层合单元SOLID45，保证了铺层取向；在加载策略上，以单元的失效来控制载荷变化的加载方式，实现了通过载荷增量的动态变化来控制每一载荷步下失效的单元数量，形成较好的裂纹扩展路线，避免了在线性加载条件下构件的连锁破坏。

In implementing "prosper the nation with science and education"and technological innovation activity, the invalid patent is a land of important information resources demanding developing urgently, as energy resource and physical resources , before development, we must evaluate and ensure the developmental value through effective appraisal technologies and means. Thus we can know the meanings of development and draw the conclusion of whether it will be developed.

在实施"科教兴国"和技术创新活动中，失效专利是一种亟待开发的重要信息资源，它必然如同亟待开发的物质资源和能源资源一样，在开发之前，必须运用有效的评价技术和手段进行价值开发的评估和认定，以便得出对失效专利开发有无意义并且是否值得去开发的结论。

To the at present prevailing invalid view in three value logic of three law about the thinking law, this text set out from dialectics about the dialectical relation principle of the universality and particularity , think the law of identity , law of contradiction , law of excluded middle are for guaranteeing the universal law of people's correct thinking has general guidance functions to human thinking , will not lose efficiency in this concrete scientific field of thinking of three value logic

针对时下流行的关于思维规律前三律在三值逻辑中失效的观点，本文从辩证法关于普遍性与特殊性的辩证关系原理出发，认为同一律、矛盾律、排中律是为了保证人们正确思维的普遍规律对人类思维具有普遍指导作用，不会在三值逻辑这一具体的思维科学领域内失效

Not only the accidents of submarine pipeline have effect on regular production of offshore oil and gas field, but also the leakiness of oil and gas pollute ocean environment badly, and the accidents will make huge economic losses and a

海管失效不仅影响海上油气田正常生产，而且油气外泄还会严重污染海洋环境，造成巨大经济损失和不良社会影响，因此必须采取有效措施防止海底管道失效。

To be direct against problems of traditional apparatus reliability failure analysis method,this paper presents a failure analysis method based on maximum likelihood estimation method.

针对传统电器可靠性失效分析方法中存在的问题，提出了一种电器可靠性失效分析极大似然估计方法。

In order to clarify the type, the causes and the mechanism of the sealing failure, and the further improve the working life of the seal rings of drilling mud pump plunger, this paper analyzed the seal failure of myriameter drilling mud pump plunger.

为了弄清高压钻井泥浆泵柱塞密封圈的失效形式、原因及机理，进一步提高钻井泥浆泵柱塞密封圈的寿命，对万米钻井泥浆泵柱塞密封失效分析。

Based on fuzzy feature that the concrete crack width affects concrete structure durability, the membership function that the crack width belongs to the durability failure is established, the calculation method of fuzzy probability about structure durability failure is submitted, and classifing standard of the sturucture durability state is proposed, In accordance with the stochastic nature that cracks on concrete bridges occur and grow, and by assuming that crack occurrence obeys nonstable Poission process, predicting and evaluating methods about future crack condition and durability state of concrete bridge structures are suggested.

依混凝土裂缝宽度对混凝土结构耐久性影响的模糊特性，建立了裂缝宽度隶属耐久性失效的隶属函数，提出了结构耐久性失效的模糊概率计算方法，并建议了结构耐久性状态的划分标准；针对混凝土桥梁裂缝发生、发展的随机性，以裂缝的发生服从非稳态的泊松过程的假设为前提，提出了混凝土桥梁结构裂缝未来状况及耐久性未来状态的预测评估方法。

Moreover, failure analysis was made to the sensor, and the sensor was improved against the systematic B failure. By general way of reliability growth way, the increased MTBF was estimated. When the confidence level was 0.9, the one－ sided confidence lower limit reached to 299 158 times, which met the challenge of MTBF bigger than 100 000 times.

进而对其进行失效分析，并将系统性B类失效加以改进，采用一般性的可靠性增长方式，经可靠性验证试验对增长后的MTBF做出评价，当置信水平为0.9时，其MTBF的单侧置信下限达到了299158次；满足了MTBFL10万次的要求。

Equally as important is to evaluate the failures that occur at each of these limits to determine if each of the failures found were accelerated to failure or if there were any failures that were due wearout or overstress.

同样重要的是评估不同极限下的失效或者是此应力条件下失效是否是因为过应力或者磨耗产生。

In this flow a tradeoff of multiple test methods is adopted, which includes structural test, functional test and parametric test. Using the test mode of"stop as finding the fault"and based on the position of the first failure, we can label the faulty chips into different bins.

该流程综合采用结构测试、功能测试、参数测试等测试方法，采取"发现故障即停止"的测试方式，根据芯片首次失效的位置对失效芯片进行Bin的分类，有效增强了分析的针对性，缩短了测试时间。

Objective To investigate the effects of interleukin-1 β converting enzyme gene on the biologic characteristics of ovarian cancer cells.

目的 探讨白细胞介素-1 β转换酶的表达，对卵巢癌细胞生物学特性的影响。

Campylobacter: This illness is the most commonly identified cause of diarrheal illness in the world.

弯曲：这种病是最常见的原因查明腹泻病，在世界上。