诊断

The paper presented a method of detecting long-range correlation in a signal--detrended fluctuation analysis and applied it to diagnose gear faults. Two key problems, i.e. scaling range and polynomial order of fitted trend, were discussed. Scaling exponent was extracted to be as a detector for diagnosing five types of gear faults, their were normal, spalling, tooth broken, wearing and cracking.

探讨了一种检测非平稳信号中长程相关信息的方法--利用去趋势波动分析（detrended fluctuation analysis，DFA）方法来诊断机械故障，着重研究DFA的尺度范围选择、趋势拟合阶数选择等关键问题，提取尺度指数作为诊断的特征参数，应用于齿轮的正常、剥落、断齿、磨损、裂纹等五种状态诊断，正确率达96％以上。

The research report about its diagnostic and screening value for large intestinal diseases suggested that CTVE has no diagnostic value for small polypi below 5 mm, but which has highly clinical application value for the screening diagnosis and treatment of enteroprotrusion lesions beyond 6 mm.

CTVE中进行仰卧位和俯卧位扫描对于保证结肠的充分扩张是极为必要的；对大肠疾患诊断及筛检价值的研究报告认为：5 mm以下小的息肉无临床诊断价值，则对于6 mm以上的肠道隆起性病变其筛查诊断、治疗有较高的临床应用价值。

Intelligent fault diagnosis system of vibratory road roller which consists of neural network and expert system is built in this paper by detailed analysis of structure and principle of vibratory road roller and comparison of main methods of building fault diagnosis system, this system can diagnose usual fault of vibratory road roller.

本文通过对振动压路机结构及原理的详细分析，对构建故障诊断系统主要方法的比较，建造了神经网络与专家系统相结合的振动压路机智能故障诊断系统，实现了对振动压路机常见故障的诊断。

Processing efficiency as a result of cutting-axis achieve the revitalization of planning released the equipment manufacturing industry to adjust exhaust turbocharger atc common faults and exclusion of high-speed cutting edge technology used in the blanking die in and outside the ring of rolling bearing fault diagnosis methods of the term commonly used brief summary of metal material factor in the quality of process performance aluminum water purification technology gap separating sub-micron technology the basic principles of rotary broaching the installation of the basic principles of positioning technology in the context of the characteristics of the engine crankshaft camshaft grinding high-speed implementation of the project highlights the emergence of diagnostic bearing cage diagnostic system 10 cases of preventive measures hardening die steel crack analysis of elastic deformation of the analysis error δφ maintenance and repair pneumatic tools processing tools prismatic conical shape when the surface of the workpiece form error ina sets of cylindrical sliding zgb200x220x180 ina sets of cylindrical sliding cylinder zgb180x200x180 ina zgb160x180x150 ina sets of cylindrical sliding sliding sliding cylinder zgb140x155x150 ina sets zgb120x135x120 ina sets of sets of cylindrical sliding zgb110x125x100 ina sets zgb100x115x100 ina cylindrical cylindrical sliding sliding sliding cylinder zgb90x105x80 ina sets zgb80x90x80 ina sets of sets of cylindrical sliding zgb70x80x70 cnc machine tools in general the structure of the spindle drive motor and the use of the exchange servo motor,the dc converter or to eliminate brush maintenance and high-speed electrical and mechanical constraints,through the belt driving the movement to the spindle,so that the spindle reaches a certain speed to achieve the stepless speed regulation,and consistent use of the speed signal converter to confirm the speed of the motor to achieve the directive,and then cutting into the knife,resulting in improved efficiency

摘 要：由于加工切削效率轴达到实习心得振兴数控机床实习心得发布装备制造业调整废气涡轮增压器常见故障及排除换刀高速切削技术的优势在冲裁模中废旧滚动轴承内外环设备故障诊断常用简易方法名词简介金属材料工艺性能铝材质量因素净化水处理技术空白亚微米分离技术回转拉削基本原理定位安装的基本原则特征技术产生的背景发动机曲轴凸轮轴的高速磨削加工五轴机实施中数控机床实习心得涌现诊断轴承保持架诊断系统预防措施10例模具钢淬火裂纹分析弹性变形误差δφ的分析维护及保养气动工具棱体成形车刀加工圆锥面工件时产生的形状误差 ina 圆柱滑动套 zgb200x五轴机x180 ina 圆柱滑动套数控机床实习心得180x200x180 ina 圆柱滑动套 zgb160x机床实习心得x150 ina 圆柱滑动套 zgb数控机床实习心得x155x150 ina 圆柱滑动套 zgb120x135x120 ina 圆柱滑动套 zgb110x125x100 ina 圆柱滑动套 zgb100x115x100 ina 圆柱滑动套 zgb90x105x80 ina 圆柱滑动套 zgb80x实习心得x80 ina 圆柱滑动套 zgb70x80x70 数控机床的主轴机床信息交流网结构一般采用交流电机和伺服电机，采用变频器或以消除直流电机电刷维护和高速限制，通过带传动把运动传给主轴，进而使主轴达到一定的转速来实现无级调速，同时利用变频器的速度一致信号来确认电动机达到了指令速度后，再进刀切削加工，从而提高了效率

From June 2004 to January 2005, 63 patients with indeterminate pulmonary lesions were enrolled in this study prospectively.

进而从临床角度探讨三者在肺癌诊断方面的应用价值，从而为肺癌的诊断寻找一种快速、准确、科学的诊断方案而服务于临床。

Results: Relative diagnostic accordance rate of the clinical exploration and four kinds of image processing setup was the highest（P＞0.01）in the first premolars. Relative diagnostic accordance rate of the clinical exploration and the pseudocolor image setup and negative image setup was the highest（P＞0.01）, and that of the clinical exploration and the pseudo3D image setup and positive image setup was the lowest（P＜ 0.01）, showing statistical differences in the second premolars.

结果：①第一前磨牙：4种图像处理格局下邻面龋的检出结果与临床诊断结果的符合率高，差异无统计学意义（P＞0.01）；②第二前磨牙：负片和伪彩图像格局下邻面龋的检出结果与临床诊断结果的符合率高，差异无统计学意义（P＞0.01）；③正片和伪3D图像格局检出结果和临床诊断结果的符合率低（P＜0.01）。

The tole rance and nonlinearity in analog circuit make its fault diagnosisic difficult. In order to solve this problem, this paper presents an analog circuit fault diagnosis method based on Rough Sets-Neural Network.

文章针对目前模拟电路故障诊断中存在的容差和非线性特性所带来的诊断难点，提出了一种基于粗集－主成分分析的模拟电路故障诊断的方法。

In the light of the shortcomings of small leakage diagnosis of oil pipe line, a new leakage detection method based on modified rarefaction wave diagnosis model is presented.

针对国内外对输油管道小泄漏诊断工作存在的不足，研究了一种基于改进的负压波诊断模型的泄漏诊断方法。

Optimal design of the incidence matrix for structured residual approach with maximized sensitivity is discussed in this paper, in order to overcome the shortcoming of SRAMS that ignores the speed and sensitivity of fault diagnosis while considering the isolability of fault codes in the incidence matrix design.

针对基于具有最大敏感性结构化残差的传感器故障检测与诊断方法在设计影响矩阵时只考虑故障编码的可分离性，而没有考虑故障诊断的快速性和灵敏性的缺点，给出了故障敏感度和故障诊断灵敏度等指标，并提出了两种影响矩阵的优化设计算法。

Fault diagnosis and condition monitoring for rocket propulsion system is one of the necessary and effective methods to ensure the safe and reliable operation of large space vehicle system. Besides precise test technology, advanced monitoring and diagnosis algorithm is important for modern monitoring and diagnosis technology.

先进的火箭推进系统的功能监测与故障诊断技术是保障大型运载系统安全可靠运行的有效措施和必要手段之一，先进的监测与诊断技术除要求有精确的测试技术外，先进的监测与诊断算法也是致关重要的。

As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸，那乌黑、忧郁的眼睛，她便会相信，他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失