查询词典 alternating matrix

In the light of the complex, high-level and non-linear feature of the mathematical model which describe the transport of the coalbed methane, this paper study the fully-implicit solving method of the mathematical model in detail. Based on the complexity of the algebraic equations which are formed eventually, according to the alternating direction implicit difference pattern, this paper use the iterative method and the fully main element Gauss-Jordan eliminating method to solve equations, which is to use the iterative method to determine coefficient matrix and use the fully main element Gauss-Jordan method to solve th linear algebraic equation group, at the same time of studying the solving method of the mathematical model, according to the devising requirement of FORTRAN77 program structure, this paper draw up computer program and form the corresponding computer model, and verify the validity and reliability of the model in theory by operating the model.

重点研究了模型内、外边界及有关参数的处理，针对描述煤层甲烷运移的数学模型是一个复杂、高阶非线性数学模型的特点，详细研究了模型的全隐式求解方法，根据最后形成的代数方程组的复杂性，按交替方向隐式差分格式，采用迭代与全选主元高斯约当消去法相结合的方法求解方程：即确定系数矩阵采用迭代法，求解线性方程组时采用全选主元高斯约当消去法，在研究模型解法的同时按FORTRAN结构化程序设计的要求，编制计算机程序，形成相应的CBMRS计算机模型，并通过模型的运行从理论上证明了模型的正确性与可靠性。

In this paper, we propose a simple alternating direction method. It needs only to perform some matrix-vector productions and projection onto a simple set.

在每一步迭代中，只需要做矩阵－向量乘法和到简单集合的投影，使得算法的效率得到保证。

The author also presents the ridge estimate of the parameters by alternating projection when the designing matrix is multicollinearity.

同时还给出了当设计矩阵为复共线时，评估模型基于交互投影迭代算法的参数岭估计算法。

It is unnecessary to calculate the element fault current, but through alternating the resistance coefficient matrix directly to acquire the resistance of ground grids.

本文对此进行了较简便的优化，不必假设总的泄漏电流，而是通过矩阵变换直接求出接地电阻，从而大大提高了计算精度和计算时间。

On the other hand, we introduce the convergence theories for generalized alternating method, parallel synchronous iterative methods and parallel alternating synchronous iterative methods when the coefficient matrix are Hermitian positive definite matrices.

接着，讨论了当系数矩阵是Hermitian正定矩阵时广义交替迭代法，并行同步迭代法，并行交替同步迭代法的收敛理论。

Based on matrix analysis of motor and general theory of alternating current machines,3-phases induction synchronous motor is substituted for symmetrical 2-phases motor with even gas,then the equation for instantaneous torque of induction synchronous motor step motion is obtained.

文中采用了电机的矩阵分析方法，根据交流电机统一理论，将三相感应式同步电机用等效的具有均匀气隙的两相电机来代替，得出了感应式同步电机步进运动的瞬时转矩表达式。

The author Discrete equations are attanied by using Alternating Direction Implic and equations are solved by using Tridiagonal Matrix Algorithm.The velocity and pressure distribution of spiral flow is attained.

本文采用交替方向的隐式格式离散方程，并利用追赶法求解代数方程组，得到了圆管螺旋流速度场、压力场的分布规律。

In Chapter 8 a new method for determination of carbofuran in apple and banana is proposed with the aid of alternating trilinear decomposition coupled with excitation–emission matrix fluorescence.

第八章采用交替三线性分解法检测苹果和香蕉中西维因的含量。

The two components were measured by excitation-emission matrix fluospectroscopy both in simulated and real system. The results of measured data, which were resolved by alternating trilinear decomposition method . It was shown that it was feasible and simple method in the determination of two main components in the complex cortex fraxini without pretreatment and separation.

利用三维荧光进行测定，然后利用交替三线性分解算法对该数据进行分解，模拟样本和实际样本分辨和回归结果表明，在秦皮中其它荧光背景干扰共存下，可实现对秦皮萃取液中两种主要成分秦皮甲素和秦皮乙素的同时分辨和定量测定。

A variety of structures are found to be stable, such as cylinders, undulated cylinders, lamellae with cylinders, perforated lamellae and alternating versions of the sphere in matrix structures, etc. In particular, some new morphologies, such as cylinders with alternating helixes structure and complicated hybrid network structures are found in our studies.

研究结果表明，在受限及表面场作用下出现了一系列稳定的相形态，包括柱状相、波浪柱状相、层状相和交替柱状(来源：Ae1Bd2C论文网www.abclunwen.com)相、穿孔层状相及交替分散的球状结构等，这些结构在实验和理论上都已被发现。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。