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failed samples
相关语句
  失效样品
     Observations and experiments have been carried out on failed samples of the MF-11 type thermistors. The main failure modes have been summarized.
     对MF-11型热敏电阻器的失效样品进行了比较系统的观测与实验分析,从中总结出其主要失效模式.
短句来源
     A statistical method has been used to obtain feature parameters for reliability. Major failure modes and failure mechanism for wideband amplifiers are summarized by analyzing failed samples. Possible measures are proposed to minimize or eliminate failures of the wideband amplifier,thus enhancing its reliability.
     叙述了国产高频宽带放大器的质量和可靠性现状,详细介绍了这类产品的质量一致性检验、可靠性摸底试验和现场使用过程中出现的可靠性问题,用统计的方法得出了可靠性特征量,通过对失效样品的失效分析,总结出宽带放大器主要的失效模式和失效机理,并提出了消除和减少失效、提高宽带放大器可靠性的措施和建议。
短句来源
     potential failure modes were discovered by testing,sorting and cross section of failed samples of NTCR temperature sensors for automotive Failure mechanism was studied by analyzing different kinds of failed samples based on the simulation test,and recommendation to improve the reliability of the sensors was provided
     通过对汽车用NTCR式温度传感器失效样品的测试、分类和解剖 ,发现有 4类可能的失效模式 ; 在模拟试验的基础上 ,分别对各类失效样品进行了失效机理分析 ,并对如何提高这种传感器的可靠性提出了改进建议。
短句来源
     major failure modes and their failure mechanisms for domestic optoelectronic coupler were investigated by failure analysis of more than 20 failed samples of 6 types of couplers
     通过对 6种型号 2 0多只国产光电耦合器失效样品的失效分析 ,分析研究了国产光电耦合器的 6种主要故障模式及其失效机理
短句来源
     The root cause of reliability degradation of some products in usage was identified based on the high temperature and humidity accelerated environmental stress test of COG-LCD and the failure analysis of failed samples, and reliability was improved by the process improvement.
     通过对COG-LCD进行未封硅胶时的高温、高湿加速环境应力试验,以及对试验后失效样品的分析,找出造成部分产品使用过程可靠性下降的根本原因,并通过工艺改进提高产品的可靠性。
短句来源
  “failed samples”译为未确定词的双语例句
     Four doubtful samples and 3 failing samples were found in the sentinel sites testing,while the pass sample rate was 94.5%,the doubtful samples made up 3.1% and 2.3% of failed samples;
     在初筛过程中检测出4个可疑样品和3个不合格样品,合格率为94.5%、可疑率为3.1%,不合格率为2.3%。
短句来源
     The microstructures, the microstructural characteristics of longitudinal profile and fracture surfaces of tensile failed samples have been characterized by optical microscopy, SEM and TEM for the Ti-15S alloy containing 10 Vol% TiC, which had been processed via a PTMP route.
     用金相、SEM和TEM研究了PTMP技术制备的含10%体积分数粒子的Ti—15S/TiC颗粒强化复合材料的显微组织、拉伸断口及拉断试样纵向显微组织特征。
短句来源
     Comparison experiment results show that the failure is not caused by the permeation of plating solution but by the reaction happened in the electroless nickel plating. The failed samples could be restored by annealing in air at 600℃.
     通过对比实验发现,这些样品的失效不是由于镀液的渗透引起的,而是与化学镀镍过程中的化学反应有关。
短句来源
     The Fractographic features and surface morphology of fatigue failed samples of different batches of 904L stainless steel wire were studied by SEM observation to identify causes of difference in fatigue property.
     采用扫描电镜观察等方法,比较不同批号的美国进口904L不锈钢丝断口特征、表面形貌,分析其产生疲劳性能差异原因.
短句来源
     Failed reason was studied by analyzing different kinds of failed samples based on the simulation test,and recommendation to improve the reliability of the sensors was provided.
     在模拟试验的基础上,分别对各类RTD故障样品进行了故障原因分析,并对如何提高这类RTD的可靠性提出了改进建议。
短句来源
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  failed samples
The CT images and stereological measurements reveal the geometric complexity and spatial heterogeneity of damage in the failed samples.
      
Failed samples were observed with a scanning electron microscope to determine the failure processes in the coating.
      
Fractography of the failed samples indicated failure by a combination of transgranular SCC and ductile fracture.
      
Analysis of failed samples suggested that microcracking was the main factor responsible for the spikes, with twinning providing a minor contribution in the near-lamellar materials.
      
Fractography of failed samples was also discussed in terms of their mechanical properties.
      
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An algorithm for circuit yield estimation and optimization is described. To obtain the first and second derivatives of yield with respect to center and get the optimal circuit center, the Monte Carlo analysis and Newton method are employed. By using "fail" samples and rearranging sample frequencies according to their weights, two new methods for improving estimation and reducing computation are presented. Both theoretical analysis and calculation examples show that this algorithm performs well...

An algorithm for circuit yield estimation and optimization is described. To obtain the first and second derivatives of yield with respect to center and get the optimal circuit center, the Monte Carlo analysis and Newton method are employed. By using "fail" samples and rearranging sample frequencies according to their weights, two new methods for improving estimation and reducing computation are presented. Both theoretical analysis and calculation examples show that this algorithm performs well and can be used for middle-scale circuit design. No matter the region of acceptability is convex set or not, the algorithm is available.

本文利用蒙特卡罗法估计电路产品合格率对元件参数中心值的一、二阶偏导数,再与牛顿最优化方法结合得到了一个电路中心设计的算法,为了提高偏导数估计值的精度,文中又给出了利用“失败”样本点的估计式。为了减少电路分析次数,作者提出了适用于蒙特卡罗分析的采样频率按权排序法,理论分析和算例表明:本文算法是成功的,适用于非凸、非单连通可行域,可进行中等规模电路的产品合格率估计和中心设计。

Observations and experiments have been carried out on failed samples of the MF-11 type thermistors. The main failure modes have been summarized. It is believed that the failure mechanism includes the resistance drift, insufficiency of aging, a decrease of the effective electrode area, the extension of the insied micro-crazing, the transformation of the non-equilibrium state and the change of the surface states of the crystalline grains. To improve the re-liabtility of the MF-11 type thermistors, some recommendations...

Observations and experiments have been carried out on failed samples of the MF-11 type thermistors. The main failure modes have been summarized. It is believed that the failure mechanism includes the resistance drift, insufficiency of aging, a decrease of the effective electrode area, the extension of the insied micro-crazing, the transformation of the non-equilibrium state and the change of the surface states of the crystalline grains. To improve the re-liabtility of the MF-11 type thermistors, some recommendations are given.

对MF-11型热敏电阻器的失效样品进行了比较系统的观测与实验分析,从中总结出其主要失效模式.认为它的主要失效机理有:阻值漂移及老化不足,电极有效面积减少,内部微裂纹的蔓延与扩展,非平衡态的转变过程,晶粒表面态的变化等.对提高产品的可靠性提出了改进建议.

Boiler tube fail (BTF) is clue to deposit corrosion, the deposit may be scale or corrosion product. Under deposit will cause occluded corrosion cell, and cause localized corrosion.In the report some boiler tube fail sample has analysed, and point that the chemical cleaning of boiler is the effectual process of restraint corrosion and protect corrosion.

炉管失效(Boiler Tube Failure,BTF)是困扰大容量火力发电厂的主要问题之一,其中腐蚀引起的失效占一定比例.工业锅炉与采暖锅炉也常因结水垢与腐蚀而失效.化学清洗是防止锅炉腐蚀和制止腐蚀发展的主要手段,有很大的节能与环境效益.本文介绍了锅炉的主要失效原因及化学清洗对防止与制止锅炉腐蚀所起的作用.

 
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