查询词典 correlation method

Based on these, a general mathematical model for the polar autocorrelation function is set up and the theoretical basis of the polar correlation method is presented.

在此基础上，建立了一般的极性相关函数的数学模型。从而论证了极性相关法的理论依据，拓宽了极性相关法的适用范围。

Instead of the complicated mathematical model, the correlation method could be used to predict the choked flow rate through adiabatic capillary tube.

关联方法可替代复杂的数学模型，用以预测绝热毛细管的壅塞流量特性。

In this thesis, we proposed a phase correlation method which is a popular method in image subpixel registration.

在本文中，我们提出一种相位相关算法，这种算法常运用在图像亚像元校准。

The result of the method is near to the cross correlation method.

此法和相关法在测量同一组数据的计算结果相近。

Two parameter identification methods, the correlation method and the least square method, are researched in this paper.

本文研究了两种经典的参数辨识方法。

The correlation method is the one that computes the frequency response of the components of DEH by utilizing the input and output data, and then calculates the transfer function of the DEH system by using Levy method.

相关辨识法是利用输入与输出数据的自相关和互相关函数求取系统频率特性，进而拟合出其传递函数的方法。

The expression of assembly structure based product structure labeled graph is proposed.The module partition method based on frequent subgraph mining is presented,and Apriori algorithm is applied to build the mapping between frequent subgrahs and product family modules.The structural correlation method of product family is presented,which includes the predefinition of the assembly structure of product family,the definition of the configuration relationships among producy family modules and the definition of the parameter correlations among producy family modules.

以成熟产品设计实例为分析对象，利用产品结构标号图描述其装配结构；提出基于频繁子图挖掘的产品族模块划分方法，建立频繁子图到产品族模块的映射关系；研究了产品族结构关联方法，包括产品族装配结构预定义、产品族配置关系定义和产品族参数关系定义。

In this method residual stresses were evaluated using a fracture mechanics approach,that is,the crack opening displacements measured by digital speckle correlation method at a point on the edge of a plate as a rack was introduced and extend from the edge were used to deduce the state of stresses that existed in uncracked plate.

提出一种简便的残余应力检测方法，利用数字相关技术检测裂纹扩展过程中试样表面的变形，应用断裂力学理论计算出残余应力分布。通过梁弯曲对试验结果作了验证并与应变测量结果进行了对比，残余应力的检测结果与理论值标准差为1.28MPa。对淬火和焊接残余应力分别作了检测。实际应用表明所提出检测方法具有准确、高效和使用简便的特点

For understanding the workability and precision of these prediction equations, at first this study not only simulates the MHs of Taipei, Taichung, Kaoshung cities and Kao-ping area but also compares these results with meteorological models of CLAMET and TPAQM. And the comparisons show the high correlation (up to 0.8) between them. When the results of MH prediction equations model are compared with TPAQM, they get higher or lower values than TPAQM. The reasons are that Holzworth method can not concern about the warm and cold advections effect and the upper air data used do not get enough finer space-spread. About the results spread on the domain of my model, they show more different MH fields between the land and the sea around and get more sharply change of the land MHs on daytime than TPAQM.

为了解此预测式之可行性及准确度，本研究针对台北、台中、高雄及高屏地区作混合层高度值的模拟，并将模拟结果与实际观测值、CALMET气象模组及光化学轨迹模式输出结果作比对，结果显示均有0.80以上之高相关性；但与TPAQM计算结果间有明显的高估或低估现象，此为Holzworth method无法考量温度平流效应对混合层发展之影响及探空资料空间解析度不足所致；而在空间分布上，本模式所计算的混合层高度场相较於TPAQM在海陆分布上有较明显的分野，且更能够显示出内陆地区混合层高度的日变化。

At the same time, pattern recognition has been used for abstracting characteristics、predicting the life and evaluating the properties of engine. This research contributes toward global diagnosis for the diesel engine in eight ways.(1) Put forward"the Arithmetic of distinguish the period automatically using auto-correlation method";(2) Separate the waves of continuous knocks using WV distribution;(3) Propose"the logarithmic spectrum approximate method"to analysis the response of the knock between the steel and steel;(4) Discuss the relationship between the time-frequency distribution and timescale distribution in detail, and give the principle of classification;(5) Use the wavelet method to analysis the pressure signal of exhaust、suction;(6) Use the shape of vibration signal to analyse the working situation of cylinder;(7) Use the pattern recognition to select the good samples and abstract the effective characteristics;(8) Develop the model of total properties evaluation and life prediction.

本文在广泛的、深入研究的基础上，应用多种信号处理手段来分析处理数据，同时利用模式识别方法对故障的特征提取、寿命预测以及性能评价作了探讨，本文进行了以下几项工作：（1）提出了基于自相关自动周期识别算法的柴油机振动信号预处理策略；（2）提出了基于WVD分布的连续撞击响应信号的分离策略；（3）提出了基于对数谱拟合方法的钢—钢撞击响应求解模型；（4）提出了基于波形分析的非正常燃烧振动信号的诊断模型；（5）提出了基于小波细节信息的进气压力信号和曲轴箱压力信号的诊断模型；（6）提出了基于小波近似的喷油正时信号中燃烧位置的自动定位；（7）提出了基于统计模式识别方法的故障诊断知识的自学习与自组织策略；（8）提出了基于特征压缩思想的柴油机总体性能评价及寿命预测模型。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。