查询词典 method of undetermined coefficients

Cronbach'sα coefficients for internal consistence ranged from 0.74 to 0.97. The interclass correlation coefficients ranged from 0.73 to 0.99 for intra-observer variation, and from 0.48 to 0.70 for inter-observer variation.

内部一致性信度的数值在各范畴中高巴氏α(Cronbach'sα)值皆大於0.7；再测信度中，内在等级相关系数(Intraclass correlation coefficients)值皆大於0.45。

With some examples, the correlat ions between the thermal expansion coefficients of minerals and the types of cr ystal structures, the nature of chemical bonds, the valencies of ions , the interionic distances, the percentage ionic characters, the electronic conf igurations of ions and the chemical compositions are discussed and summarised . The crystal chemistry approach has been used in the calculation of the th ermal expansion coefficients for minerals with simple structures and composition s.

晶体化学方法是研究矿物热膨胀系数的有效方法，但由于矿物的热膨胀系数和晶体化学参数之间的定量关系尚未完全弄清，目前仅仅能对简单结构矿物的热膨胀系数进行计算，结构、成分较复杂的矿物的热膨胀系数计算尚缺乏好的晶体化学模型。

The average correlative coefficients of linear regression function for isochronous stress- axial strain curve are 3.92% higher than that of average correlative coefficients of linear regression function for isochronous stress- radial strain curve, so nonlinear creep property of the fine sandstone specimen in axial direction is correspondingly weaker than that in radial direction.

应力－轴向应变等时曲线线性回归函数的平均相关系数高出应力－径向应变等时曲线线性回归函数的平均相关系数3.92%，因此其轴向非线性蠕变特性相对于径向非线性蠕变特性更弱。

Two different ways for LPC coefficients quantization are studied, which deals with reflection coefficients and Line Spectrum Pair parameters respectively.

研究了基于k参数和LSP参数的两种LPC参数的量化编码方法。

Finally, based on the optimized configurations,the lift coefficients, drag coefficients and lift-drag ratios were calculated with hundreds of in-flow Mach numbers and angle of attacks.Some interesting phenomena occured and were depicted.

最后，针对得到的优化外形，计算了不同来流马赫数和攻角下的流场并分析了升力系数、阻力系数以及升阻比随马赫数和攻角变化趋势，得到了一些有趣的规律。

We also believe that we can compare the enterprises in the same industry with Matrix of Direct Input Coefficients and Matrix of Cumulative Input Coefficients. In our practical analysis and demonstration, we analyze the main expenses of the enterprises linking with their value-added.

同时，发现可以用投入产出表中的直接消耗系数表和完全消耗系数表对处于同一行业的企业作对比分析，可以将企业的相关费用与企业创造的增加值结合起来作对比分析。

In the computation of the influence matrix of resistance coefficients, the microcosmic analysis is replaced with the analytic solution,which ensures the accuracy of the influence matrix of resistance coefficients.

通过采用直接求解析解的方法取代管网微观分析方法，来计算阻力特性系数影响矩阵，确保了阻力特性系数影响矩阵的准确性，提高了测点优化计算的精度。

In order to find a powerful assistant computation tool for further analysis and design of multilayer optical coatings,an analytical model is mathematically established for accurate calculation of the first and second derivatives of the spectral coefficients of multilayer optical coatings with respect to layer parameters like thickness,real refractive index and extinction coefficient. It is based on the matrix theory of calculating the spectral coefficients of multilayer optical coatings and is achieved by perfectly using the trace operation of matrix.

为了寻找一种膜系深入分析与设计的有力辅助计算工具，从光学薄膜光谱系数的矩阵计算理论出发，基于对矩阵求迹运算的巧妙运用，从数学上建立了准确计算膜系光谱系数关于膜层几何厚度、实际折射率和消光系数等膜层参数的一阶和二阶偏导数的解析模型。

First,the feature subspaces are formed from different pose images using ICA and PCA.Then the pose image is transformed into its corresponding frontal face image using the transformation matrix predetermined by learning.Based on this foundation,the wavelet transform is applied to face images,and the authors compare the frontal face feature coefficients directly which are obtained by using the transformation matrix with the feature coefficients of the original face images,the recognition rate is improved greatly.

首先利用ICA和PCA提取不同姿态人脸的特征子空间，然后利用通过训练得到的姿态转换矩阵合成其相对应的正面人脸图像，实验表明ICA人脸识别算法要优于PCA人脸识别算法，并在此基础上用小波对人脸图像进行预处理，据姿态转换矩阵得到的正面人脸特征系数直接进行分类比较，识别率得到了很大的提高。

Based on the assumption that wavelet coefficients obey Generalized Gaussian Distribution, this paper adopts Maximum Likelihood principle to estimate wavelet coefficients variance of common images in sub-bands.

摘要基于小波系数服从广义高斯分布，该文采用最大似然准则估计普通图像在子带上的系数方差。

Salt is good, but if the salt becomes flat and tasteless, with what do you season it?

14：33 盐本是好的，盐若失了味，可用什么叫它再咸呢？

He reiterated that the PLA is an army of the people under the leadership of the Communist Party of China.

他重申，人民解放军是在中国共产党领导下的人民军队。