查询词典 paper matrix

First, the paper proves the well-posedness of the encryption and decryption problems, which provides theoretical bases for experiments of encryption and decryption; Then presents a fast iterative algorithm, which is proposed based on the special sparse structure of the coefficient matrix of the two-dimensional C-N difference scheme, and successfully experiments on images encryption and decryption; At the end, the security of the methods of images encryption and decryption based on the two-dimensional Pseudo -parabolic Partial Differential Equation is experimented and discussed particularly.

首先证明了基于二维连续模型的加、解密问题是适定的，为加、解密实验提供了理论依据；然后根据模型的二维C-N格式系数矩阵的特殊稀疏结构，给出快速迭代求解算法，并成功地进行了图像加、解密的数值试验；最后对基于二维伪抛物型方程的图像加、解密方法的安全性进行了详细的试验讨论。

In this paper algorithms based on wavelet packets for multiresolution data fusion are proposed, which are efficient and highly parallelizable. So it avoids big matrix computations, and also has effective performances without assuming wavelet coefficients to be white noises.

本文研究了小波变换的特性，提出基于小波包变换的多分辨率多传感器数据融合算法，算法不需要把小波系数当成白噪声处理，并且能够有效地降低向量和矩阵维数，减少运算，有较好的滤波性能。

The problem of solving the matrix equation AX-EXY=BY is studied in this paper. Firstly, a complete general parametric expression for satisfying this equation is obtained.

给出矩阵方程AX-EXY=BY的一个完全解析的、具有显式表达式和完全自由度的参数解。

In this paper,a technique to determine the geometrical properties of fractional Fourier transform of paraxial beams based on the phase space beam transformation matrix is presented.

提出一种分析傍轴光束分数傅里叶变换几何特性的相空间束矩阵变换的简单方法。

The completion problems of partial inverse M-matrix for 3-chordal graph are discussed by using graph theory and the completion theorems for 3-chordal graphs are presented in this paper.

摘要利用图论的相关知识，在1-弦图、2-弦图完备的基础上探讨了3-弦图的完备问题，给出3-弦图的完备定理。

In order to solve the problem that matrix A often occurs irreversible when shape function is calculated by using traditional element free Galerkin method, the orthogonal function with the weight function is utilized in the paper. And partition of unity quadrature technique is employed and so a truly "meshless" method is realized.

针对传统无网格伽辽金方法在构造形函数时，矩阵A容易出现不可逆的弊端，采用带权正交基函数构造形函数，在积分方案上采用单位分解积分方法，从而实现了真正的"无网格"。

Based on the "shortest path matrix", the selected characteristic indices-distance, time and speed, this paper analyses the current spatial structure of accessibility in the cities which the national trunk highway system connects, and impacts the speed index made.

以"最短路径模型"为基础，选取距离与时间两个特征指标以及联结两者的速度指标，分析了目前中国国家干线公路网络联结的城市通达性空间格局。

In this paper,we prove that maximal strategy and ESS are equivalent in ESS model which payoff matrix is symmetrical.

主要证明了在由对称支付矩阵所决定的进化稳定策略模型中，极大策略与进化稳定策略是等价的。

For Pentium Pro processors, the code rescheduling scheme is used in this paper to optimize BLAS, which improves the matrix multiplication performance by 10Mflops.

这个技术与已有的分块技术、循环展开技术相结合，在200MHz单CPU的Pentium Pro上将矩阵乘的性能从21Mflops提高到112Mflops以上，从而提高了并行程序的性能。

In this paper, first, a method of fundamental frequency transformation for chaotic systems is proposed based on the concept of frequency domain analysis in the periodic orbit theory of chaotic attractors and on the matrix principle.

文中基于混沌吸引子周期轨道理论的频域分析概念和矩阵分析原理，提出了一种混沌系统基波频率变换方法。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。