查询词典 failure detection

The key to preve n tion and reduction of the drill string failure lies in prevention.For this reaso n,in view of the different stressed characteristics of the different sections of the drill string in borehole,the research is conducted by dividing the drill st ring into four failure sections,namely,the section at the wellhead and the secti ons at the upper part,vicinity and lower part of the zero stress point,to inves tigate the essence and basic reason of the failure,and to put forward scientific and feasible preventing measures,thus,being advantageous to complete and system atic prevention and forecast of the drill string failure.

防止和减少钻具失效，关键在预防，为此，根据钻柱各部分在井内的受力特点不同将其划分为钻柱井口处、零应力点上部、零应力点附近、零应力点下部四个钻具失效段进行研究，查出其失效的实质及根本原因，提出科学可行的防范措施，有利于全面系统地预防预测钻具失效。

In order to research the ship ultimate strength, the ultimate strength of stiffened panel must be considered. And the web buckling and the stiffener tripping are the two main failure forms of stiffened panel. Based on the two main failure forms in this paper, according to the six failure modes of stiffened panel, the ultimate strength is solved by programming, and the failure mode is presented.

船体梁可近似看作是由加筋板组成的薄壁箱型结构，要研究船舶的极限强度，必须考虑加筋板的临界应力，而腹板屈曲和扶强材侧倾是加筋板的两种主要失效模式，本文在分析这两种失效模式的基础上，根据加筋板的六种失效模式，编程求解加筋板的临界应力，并给出其失效模式。

So we can use some theories of edge detection and corresponding detection methods to realize detection of geological abnormity body.

因此，可以利用某些边缘检测理论及其相应的检测方法实现地质异常体的检测。

By applying machine vision and digital image processing technology to fabric defect detection ,this paper puts forward a new method of detection of fabric defect,namely image distance difference arithmetic,which includes image collection,image precess and defect detection.

将机器视觉与数字图像处理技术引入到织物疵点检测中，提出了一种织物疵点检测算法———图像距离差算法，即图像采集、图像处理、疵点识别等。

Secondly, the direct demodulation detection system of 8mm wave band 32-channel on the background of millimeter-wave focal plane imaging is built, according to millimeter-wave passive detection theory, at the same time, the principle experiment is carried out, and the basic theory of millimeter-wave detection are confirmed.

其次，根据被动毫米波探测理论搭建了以毫米波焦平面成像为应用背景的8mm波段32通道直接检波式探测系统，并进行了原理性实验，验证了被动毫米波探测的基本理论。

Its main tasks are to deal with binary images, gray scale processing, and the use of Sobel, Canny, Roberts, Laplacan operator of four digital image edge detection, the results show that: Roberts operator more precise positioning, but more sensitive to noise, Sobel operator son of gray-scale images with low noise gradient has a better detection of the effect of Laplacian can be detected in the vast majority of the edge did not appear at the same time the basic pseudo-edge, the edge can be precisely targeted, Canny operator is the traditional first-order differential operator in one of the best operator to detect the best edge detection, edges clear, make clear at a glance.

主要工作包括图像的二值处理，灰度处理，并运用Sobel、Canny、Roberts、Laplacan四个算子实现数字图像边缘检测，结果表明：Roberts 算子定位比较精确，但对噪声比较敏感，Sobel算子对灰度渐变低噪声的图像有较好的检测效果，拉普拉斯算子可以检测出绝大部分边缘，同时基本没有出现伪边缘，可以精确定位边缘，Canny算子是传统一阶微分算子中最好的算子之一，检测边缘检测的效果最好，边缘轮廓清晰，使人一目了然。问题补充：摘要英文翻译，不要在线翻译的，是在线等！急啊！！！！谢谢！！！！

Its main tasks are to deal with binary images, gray scale processing, and the use of Sobel, Canny, Roberts, Laplacan operator of four digital image edge detection, the results show that: Roberts operator more precise positioning, but more sensitive to noise, Sobel operator Gradient gray son of low-noise images have a better detection of the effect of Laplacian can be detected in the vast majority of the edge did not appear at the same time the basic pseudo-edge, the edge can be precisely targeted, Canny operator is the traditional first-order differential operator in one of the best operator to detect the best edge detection, edges clear, make clear at a glance

主要工作包括图像的二值处理，灰度处理，并运用Sobel、Canny、Roberts、Laplacan四个算子实现数字图像边缘检测，结果表明：Roberts 算子定位比较精确，但对噪声比较敏感，Sobel算子对灰度渐变低噪声的图像有较好的检测效果，拉普拉斯算子可以检测出绝大部分边缘，同时基本没有出现伪边缘，可以精确定位边缘，Canny算子是传统一阶微分算子中最好的算子之一，检测边缘检测的效果最好，边缘轮廓清晰，使人一目了然。不要在线翻译的那种！在线等！！急！！！谢谢！！！

From sample treatment to data analysis of the detection, 30 minutes is enough to complete the whole detection process, providing a new on site detection method for Brucella.

整个检测过程，从样品处理到数据分析，能够在30分钟内完成，从而实现了布鲁氏菌的现场快速检测，为布鲁氏菌的现场快速检测提供了一种新的方法。

At the same time, combining with the actual condition of delivery pipeline of our country and some prevalent leak detection and location methods, this paper raised a method, which is based on wavelet analysis and negative- pressure-wave to detect and locate the leakage. Jobs in the paper are as follows:As affected by gas density, pressure, specific heat and pipe material, the velocity of negative-pressure-wave improved depending on the energy conservation. At one time, taking the affection of velocity of gas flow, the location formula was modified in some degree.When locating the leaks with location formula, the iterative approach algorithm was adopted as a new method to increase the location accuracy level of system.Multi-scale decomposition and reconstruction of wavelet transform is utilized to filter the noise of negative-pressure-wave, which was brought by leakage. With the capacity to detect the signal singularity fast and accurately, wavelet transform was used to catch the break point of pressure signal. The work improved the accuracy of At in location formula, accordingly improved the location accuracy.Wavelet is a suitable tool for signal analysis. The distinct character is that the mother-wavelet is of optional. That means choosing different mother-wavelet will get different analysis result. So we studied how to choose mother-wavelet and its scale for signal singularity detection. The method is to choose a wavelet by regularities of the wavelet and the signal.Finally, a plan, which bases on SCADA system for inspection and detection of natural gas leakage, is proposed in the article.

其中，主要进行了以下几方面的工作：针对泄漏产生的负压波在管道中的传播速度受媒介的密度、压力、比热及材质等因素的影响，而非声波在空气中传播的速度，本文利用能量守恒原理，对其进行了修正；考虑到管内气体流速对压力波速的影响，对原始的负压波定位公式进行了一定程度的改进，并在利用定位公式进行泄漏点定位时采用逐步迭代逼近算法，提高了系统的定位精度；利用小波变换的多分辨率分解和重构技术，对采集到的管道发生泄漏时产生的负压波信号进行了降噪处理；并利用小波变换技术对信号奇异点的快速、准确的识别能力，对经上述消噪后的负压波信号进行了奇异点捕捉，精确捕捉的结果提高了定位公式中上下游站点采集到的负压波奇异点的时间差△t的精度，从而进一步提高了定位的精度；考虑到小波变换是一种基波可变的信号分析工具，也就是说，不同的小波基波对信号分析的结果将有很大差别，这势必影响最终的处理结果，因此，我们又对比分析了本课题中小波基及尺度的选择问题，依据规则性系数相似性原理对母小波的选择进行了探索性研究；最后，还提出了基于SCADA的泄漏检测与定位系统的软件开发构想及系统的嵌入方案。

The invention provides a method for producing transgene sugarcane quickly with pmi genes. The method primarily comprises the steps of establishing a mannitose screening system; transformation of a gene gun; acquisition of resistant callus; differentiation and screening of the resistant callus; acquisition and rootage of resistant plantlets; molecule detection of resistant plantlets regenerated and detection of pmi gene expression by the chlorophenol red detection method.

一种利用pmi基因快速获得转基因甘蔗的方法，主要内容包括：甘露糖筛选体系的建立，基因枪转化和抗性愈伤组织的获得，抗性愈伤组织的分化筛选，抗性苗的获得和生根，抗性再生苗的分子检测和氯酚红法检测法检测pmi基因表达。

We have limited budget let me know if you can do this competitively.

我们有限的预算让我知道如果你能做到这一点竞争力。

We don't know how other critters breathe--lizards, for example.

我们还不知道诸如蜥蜴之类的动物如何呼吸。