查询词典 failure detection

It is shown that the contact interaction enables bottom drillstring to whirl backward, and then an alternate bending stress with higher frequency is produced. So the drillstring fatigue failure could be accelerated. At the same time, a quite strong wallop force of high frequency is produced on the contacting point, and the contacting zone is next to the screw coupling of drill collars. It will easily result in the failure of screw couplings. The research results provide theoretical basis for the prevention of drillstring failure.

研究表明，下部钻柱与井壁的碰摩作用使下部钻柱反向涡动，产生高频的交变弯曲应力，会加速下部钻柱疲劳破坏；下部钻柱与井壁接触点处存在较大的高频冲击力，并且接触区域靠近钻铤螺纹联结处，更容易诱发螺纹联结处失效，该研究成果可为预防钻柱失效提供理论依据。

The methods of stress and strain analysis, failure analysis and safety evaluation for high arch dam in available specification and studies are reviewed in this paper. The main deficiencies for these methods are: the failure modes are not taken into account in failure analysis and safety evaluation, the regimes of failures are not clearly defined, the related methods and criterion are not so reasonable.

在总结高拱坝应力变形分析、破坏分析和安全度评估的现行规范及现有研究方法的基础上，指出这些方法存在的主要问题是：在进行破坏分析和安全度评估时没有考虑拱坝的破坏模式，破坏分析的层次不够明确，分析方法的建立和破坏判据的确定缺乏理论依据。

Failure to seal the isthmus will lead to eventual failure. The recognition and treatment of the canal isthmus may be one factor that will reduce the failure rate of surgical endodontics.

在根尖手术中，根尖切除后使得原本与外界不通连的峡部暴露，对于峡部预备及充填的不足往往会导致手术的失败。

The water heater shall have a self-diagnostic control that monitors and indicates power on, no power or control failure, start-up failure, high-limit operation, sensor failure, defective upper element, or defective lower element.

这种热水炉应该配置自诊断控制装置，能够监控和显示通电、停电、控制装置故障、启动故障、高温运行、感应器故障、上部加热元件或下部加热元件故障等状态。

The water heater shall have a self-diagnostic control that monitors and indicates power on, no power or control failure, start-up failure, high-limit operation, sensor failure, defective upper element, or defective lower element.

这种热水器应该配置自诊断控制装置，能够监控和显示通电、停电、控制装置故障、启动故障、高温运行、感应器故障、上部加热元件或下部加热元件故障等状态。

A total of 14 CFRP (carbon fiber reinforced plastics) reinforced EWC beams were tested to failure to investigate the failure modes, failure mechanism and the flexural behaviors of them.

二、进行了14根 CFRP 增强复合木梁的结构性能试验，研究其破坏形态、破坏机理及受弯性能等，并与未增强木梁的试验结果进行对比。

By studying the existing detection algorithms, this new MMSE SIC detection scheme is based on the reliability of the estimated a priori symbol probability.

在分析现有算法特性的基础了，提出了基于估计的先验符号概率可靠性的MMSE SIC检测算法。

Solar automatic tracking system according to the local latitude and longitude of automatic detection day and night, and the application of solar radiation and brightness of the environment compared to the automatic tracking system makes the accuracy, reliability, in the course of sunny real-time detection to keep the correct time and angle data, due to seasonal changes and eliminate the accumulated error.

太阳自动跟踪系统能根据当地的经纬度自动检测昼夜，并应用了太阳辐射与环境亮度的比较，使得该自动跟踪系统的准确性高、可靠性强，在晴天检测过程中能实时回存正确的时间和角度数据，消除因季节变化而产生的积累误差。

Results: the five major disases detection rate of male were hyperlipemia, adiposis hepatica, weight gain or obesity hyperplasia of prostate gland, and hypertemsion which were 40.00%, 35.16%, 34.80%, 32.96% and 30.40% respectively. the major five diseases detection rate of female were breast hyperplasia, chronic cervicitis, vaginitis, hyperlipemia and hysteromyoma, which were 51.27%, 30.38%, 28.48%, 17.72% and 16.64% respectively.

结果：男性疾病检出率前5位的有高脂血症（40.00%）、脂肪肝（35.16%）、体重增加或肥胖（34.80%）、前列腺增生（32.96%）、高血压(30.40%)；女性疾病检出率前5位的有乳腺增生（51.27%）、慢性宫颈炎（30.38%）、阴道炎（28.48%）、高脂血症（17.72%）和子宫肌瘤（16.46%）。

In this project, we have tackled the robust fault detection and diagnosis problem for affine nonlinear sampled-data systems based on nonlinear H∞ filtering theory,and focused on the design of robust fault dtetction filter. The main contribution of this project is that we (1)present design methods of robust fault estimator for nonlinear discrete-time systems based on least square estimation and linear matrix inequality;(2)improve the bounded real lemma of systems with finite discrete jumps;(3)develop the robust fault detection filters for affine nonlinear sampled-data systems with parameter uncertainties based on the improved bounded real lemma.

本项目以提高故障的正确检测率为目的，以非线性H∞滤波理论为基础，对不确定仿射非线性采样系统的鲁棒故障检测与诊断问题进行了研究，重点研究了不确定仿射非线性采样系统的鲁棒故障检测滤波器设计问题，取得了一些新的成果，主要成果有：(1)基于最小二乘估计和线性矩阵不等式，给出了非线性离散系统的鲁棒故障估计器设计方法；(2)改进了有限跳跃点系统的有界实引理；（3）基于改进的有界实引理，给出了不确定仿射非线性采样系统的鲁棒故障检测滤波器的设计方法。

The teacher likes the honeymouthed little girl very much.

老师很喜欢这个嘴甜的小姑娘。

Mr. Notker Bien's interests are traveling, spending quality time with the family and long-distance-running.

诺特卡·柏恩先生热爱旅游，长跑，以及和家人一起共度美好时光。