查询词典 coefficients

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。

The paper presents a new method for short-term load forecasting, which applies cluster analysis technique of pattern recognition principle to calculate the similar coefficients between the future day and past days, then chooses the most similar days according to these coefficients and uses linear extrapolation method to predict the load of future day.

短期负荷预测是各供电分公司调度部门的基础性工作，96点日负荷预测采用模式识别中的聚类分析方法，对影响负荷的不同相关因素建立历史映射数据库，在不同日之间计算相关度而得到相似日，并在相似日的基础上采用线性外推法得到预测日的对应负荷。

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。

METHODS: Both diastolic and systolic blood pressures repeated measures data, collected from 120 drug abusers after taking two kinds of medicine (Drug A: Xiaoyinfuzheng, Drug B: Kelening), were analyzed by multivariate random coefficients model. The fixed effect parameters matrix x of model coefficients were estimated by using least squares estimation method, the effects between treatment groups were compared and the variancecovariance matrices of random effect were also estimated.

对两种药物（A药：消瘾扶正胶囊，B药：可乐宁）治疗120例患者后的舒张压和收缩压重复观测数据进行多变量随机系数模型分析，对模型系数的固定效应参数矩阵ξ作最小二乘估计并进行组间比较，同时估计随机效应的方差协方差矩阵，分析方法用SAS/IML软件编程得以实现。

METHODS: Both diastolic and systolic blood pressures repeated measures data, collected from 120 drug abusers after taking two kinds of medicine (Drug A: Xiaoyinfuzheng, Drug B: Kelening), were analyzed by multivariate random coefficients model. The fixed effect parameters matrix x of model coefficients were estimated by using least squares estimation method, thelunwen114 effects between treatment groups were compared and the variancecovariance matrices of random effect were also estimated. Related analysis methods were programmed with SAS/IML code.

对两种药物（A药：消瘾扶正胶囊，B药：可乐宁）治疗120例患者后的舒张压和收缩压重复观测数据进行多变量随机系数模型分析，对模型系数的固定效应参数矩阵ξ作最小二乘估计并进行组间比较，同时估计随机效应的方差协方差矩阵，分析方法用SAS/IML软件编程得以实现。

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。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐