查询词典 dot matrix

In order to speed up the convergence speed, the each one step of the Landwber iteration is discomposed into the matrix computation and solution and a quick iteration scheme is given for the matrix computation. The relevant accelerated algorithm is given too. Numerical example proves that the accelerated algorithm can quicken convergence speed, reduce the calculation burden, and overcome the obstacle of application of Landweber method of iterated regularization.

为了加快Landweber迭代收敛速度，将每一步Landweber迭代分解为矩阵计算和求解，对矩阵计算部分设计了一种快速迭代格式，并给出了相应的加速算法，通过数值实验验证了这种算法能够大大加快收敛速度，有效的减少计算量，解决了Landweber迭代正则化方法在实际应用中的障碍。

Here illustrate by examples on the method of choosing and determining physical base and space metric tensor in arbitrary curvilinear coordinate system, the results show clearly that this algorithm of matrix is correct, and show that the algorithm of matrix is really ...

并用示例说明在正交或非正交的任意曲线坐标系中选择和确定物理基及空间度量张量的方法，所得结果与文献[1]和[2]完全吻合，表明这一方法是令人满意的。

We use SEM to observe fractured morphology of composites, and TEM to observe dispersion and particle size of nanoparticles or composited nanoparticles in matrix. We also investigate dispersion property of composited nanoparticles in polymer matrix with the help of microtone.

采用扫描电镜观察缺口冲击的断裂形貌，通过透射电镜观察纳米粒子和复合纳米粒子的分散情况和粒径的大小；通过超薄切片法研究复合粒子在聚合物基体中的分散性。

Considering that our algorithm also released the restrictions added on the input matrix in CHTB method and it is of lower computational complexity comparing with CHACM method, our algorithm is one of the good candidates for the computation of the minimal polynomial of a polynomial matrix.

本文提出的算法具有这样的优点：既去掉了CHTB方法的限制条件，又具有比CHACM方法更低的计算复杂性。

The results from different calculation solutions alsoshow that the precision of the instantaneous angular speed of the marine diesel enginebased on the flexible body model is mainly correlated to the rigidity matrix and theinertia of moment matrix of the equivalent model.

考虑不同阻尼大小的仿真计算表明：基于柔性体模型的柴油机瞬时转速计算精度主要与轴系当量系统的刚度和惯量有关。

The paper presents the formulation of the inverse kinematics of the 3-RSS/RU parallel mechanism and analyzes the direct solution. It deduces velocity Jacobian matrix. The moment transfer Jacobian matrix is obtained base on the principle of virtual work and simulated the input and output.

本论文首先推导了3-RSS/RU并联机器人的运动学反解方程，并对位置正解进行了分析，推导了速度雅可比矩阵，在此矩阵的基础上，利用虚功原理得到了力矩传递雅可比矩阵，对力矩的输入输出做出了仿真。

Next is " Matrix and Monadology ", an essay from the Johns Hopkins philosopher Sean Greenberg that compares the metaphysical implications of the Matrix with the bizarre metaphysics of the 17th century philosopher Gottfried Leibniz.

约翰·霍普金斯大学的哲学家Sean Greenberg的文章《矩阵和单子论》比较了《黑客帝国》的形而上学与17世纪哲学家莱布尼兹的形而上学。

The monodromy matrix of the closed-loop system is represented as a special form by which the periodic control law can be obtained via the solution to a time-inviant Sylvester matrix equation.

通过将闭环单值性矩阵进行一系列转化，周期输出反馈律的求解问题可以转化为一类Sylvester矩阵方程的求解问题。

We construct a kind of special matrix function, which is used to characterize the minimization property of this iterative method, and prove that the approximate solution, generated by this iterative method, minimizes this kind of matrix function over a special affine subspace, which means that the Frobenius norm of the residual sequence is strictly monotone decreasing.

通过构造一类特殊的矩阵函数来刻画该迭代方法的极小化性质，并证明了由该迭代方法计算出来的逼近解，可使得这类矩阵函数在一个仿射子空间上达到极小，而且所得到的残差序列的Frobenius范数是严格单调递减的。

The matrix of these samples was cast and then heated.Distinct interface between the matrix and mottle existed.

样品基体为铸态组织且铸后经过加热；斑纹与基体有明显的界面，斑纹是高锡的铜锡合金，厚度在20～40μm；斑纹主要是由SnO2与Cu41Sn11组成。

Researches reveal that students who suffer from corporal punishment tend to resort to violence in their future life.

研究表明遭受过肉体惩罚的孩子倾向于在他们今后的人生中使用暴力。

Total sugar of sarcocarp and chlorophyll of pericarp increased firstly, and then decreased afterward along with altitude; Titratable acidity, ascorbicacid and anthocyanin of pericarp were increased along with altitude; The content of protein increased firstly and decreased afterward along with altitude; Carotenoid of pericarp were decreased along with altitude.

果肉总糖和果皮叶绿素含量随海拔高度升高先升高后降低；可滴定酸、维生素C和果皮花青苷含量均随海拔升高而升高；蛋白质在1720m处最大，1420m处最小；果皮类胡萝卜素随海拔升高而降低。