本文说明了在用有限元模式对机械结构的幅射换热问题进行求解时,必须计算形状因子矩阵。
It has been shown in this paper, that in solving radiation heat transfer problems for finite element model of mechanical construction it is necessary to compute the shape factor matrix.
对井下复杂环境中无线电波传播模型方程中的环境因子矩阵,结合了实际测量值对其进行了修正。
It was modified combined with their actual measured values that the environmental factors in radio wave propagation model equation matrix of underground complex environment.
实际上,“热点图”和“关键事物矩阵”技术就是理解探索因子的方法。
In fact the "Heat Map" and the "Things That Matter" techniques are approaches to understanding the Exploration Factor.
由矩阵的特征值,求取椭圆率和线性因子。
We can get the ellipticity and linearity from the eigenvalues of the covariance matrix.
模糊矩阵法评价水质级别,比单因子评价法更真实地反映水体水质级别的具体归属。
In evaluating water quality, fuzzy matrix, compared with single factor way, can reflect more realistically the grade of water.
LDPC码是一种可以接近香农限的线性分组码,可通过稀疏奇偶校验矩阵来构造,也可以用因子图来构成。
Low Density parity check (LDPC) codes are a kind of linear block codes approaching Shannon limit. They can be constructed either with spare parity-check matrix or with factor graphs.
由化学成分的因子载荷矩阵得到四个主因子。
Four main factors were obtained from the factor load matrix.
其中采用了电子与离子系统的LS耦合表象,考虑了交换效应,仔细处理了碰撞矩阵元的角部分因子。
The LS coupling representation of electron -ion system is used, the exchange effect is taken into account and the angular factors of collision matrix elements are treated in detail.
本文借助于非负矩阵分解算法,提出了一种基于非负因子分析的模糊文本聚类方法。
Inspired by the nonnegative matrix factorization algorithm, we put forward an fuzzy text clustering method based on nonnegative factor analysis.
刻画了在非负无零因子交换半环上强保持可逆矩阵的线性算子。
The linear operators that strongly preserve invertible matrices over some antinegative commutative semirings with no zero divisors were characterized.
其基本思想是利用验前模型信息确定正则化矩阵,利用验后观测信息确定自适应因子。
The regularization matrix will be chosen by prior information of the model parameters and the adaptive factor, however, will be determined by posterior information.
这类问题与矩阵函数因子分解有着密切联系。
The problems are closelurelated with factorization problems for rational matrix functions.
这些分析结果是漏损评价过程中选取评价因子、确定因子权重和构造评判矩阵的基础。
These results are the basis of selecting the evaluation factors, determining the weight factor and structure factor evaluation matrix in the leakage of the evaluation process.
标准子空间的扰动分析:本文给出了矩阵的酉分解中酉因子的最小扰动界。
Perturbation analysis of the canonical subspaces: This paper gives the least perturbation bound of the unitary factor on the unitary decomposition.
该方法同时考虑了参数误差与几何淡化因子对定位精度的影响,不需要矩阵求逆,运算量小,速度快。
The method is characterized by light computational load and short time because it does not need to calculate the inverse of matrix.
最后由信号的振幅和噪音协方差矩阵来确定每道的优化加权因子并作加权叠加。
Finally, the optimum weighting factor of each trace is determined with the signal amplitudes and noise covariance.
并在特征提取环节,提出CSVD算法与非负矩阵因子算法特征数据相融合的人脸识别算法。
And in the feature extraction process, a new face recognition method based on CSVD and non Negative Matrix Factorization (NMF) is presented.
讨论了局部环上的矩阵表为初等阵之积的因子个数问题,并推广了域上的相应结论。
The number of the elementary matrices representing a matrix over a local ring are discussed, the corresponding results from a field to a local ring are extended.
再对各区构建影响因子决策矩阵进行灰色关联分析,判决各因子对滑坡稳定性的影响程度。
Secondly, by taking the factor decision matrix to perform grey correlation analysis, the influence degree of factors is adjudicated.
并利用因子载荷矩阵,划分了各因子的归属。
With matrix of load of factors, the factors were divided into three types.
目的:研究非负矩阵因子分解算法(NMF)用于手性药物HPLC - DAD二维数据解析的可行性及其影响因素。
Aim: to study the feasibility and influential factors for the resolution of HPLC-DAD data of chiral drugs by non-negative matrix factorization (NMF) algorithm.
建立在混合轨道上的含有共价因子的能量矩阵称为广义能量矩阵。
The energy matrix constructed on the mixed wave functions and including the covalent factors is called generalized energy matrix.
在分析和给出影响泄洪溅水量的主要特征因子及其隶属函数的基础上,由若干原观资料,建立了泄洪溅水特征因子的模糊关系矩阵。
Based on the analyses of main characteristic factors which affect the overflow spray-motion and their membership functions, the fuzzy relation matrix from the field data is established.
摘要结构化低密度奇偶校验码可通过基矩阵和扩展因子描述,具有较低的编译码复杂度和优异的译码性能。
Abstract : The structured low density parity check (LDPC) codes can be described by the base-matrices and lifting factors, which have low encoding/decoding complexity and good coding performance.
给出了对称对角A-因子循环分块矩阵的概念,讨论了它的一些性质,推广了几个主要定理.。
A concept of symmetric diagonal A-factor block circulant matrices and some of their prop- crtics are given, the main theorems are extended.
从光子晶体的传输矩阵理论出发,推导了掺杂饱和吸收非线性介质的光子晶体的缺陷模的透射率,以及缺陷层中局域光的增强因子。
The transmittance of defect mode in one dimension photonic crystals with nonlinear absorptional dielectric materials was deduced by the transfer matrix theory.
该方法避开了近似因子分解及矩阵运算,具有精度高、稳定性好、计算量少等优点。
It can avoid approximate factorization or block-bidiagonal matrix, and has obvious superiority in enhancing accuracy, lessening amount of calculation, improving stability.
刻画了在非负无零因子交换半环上强保持可逆矩阵的线性算子。
Then T is an invertible linear operator preserving rank - partial ordering on Sn(F) if and only if there exists an invertible matrix (F) such that where .
文中首先给出了杂交模式的裂纹尖端奇异单元的刚度矩阵,然后基于随机场的局部平均理论和一阶泰勒展开得到了应力强度因子均值和方差的计算公式。
The stiffness matrix of a hybrid crack-tip singular element is first derived, then by use of first-order Taylor expansion the mean and variance of stress intensity factors are formulated.
采用传递矩阵法推导了结构中相邻单胞间的传递矩阵,给出了结构中波动局部化因子的表达式,并给出了数值算例,分析了压电材料各参数对局部化因子的影响。
The expression of localization factor is given by Wolf algorithm, numerical examples are presented and the effects of various parameters of piezoelectric material on localization factor are analyzed.
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