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反线性变换

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Chapter 3 introduces some methods seeking exact solutions for the nonlinear evolution equation, such as inverse scattering method, symmetry reduction method, Backlund transformation, Darboux transformation , Hirota bilinear method, Painleve analysis method, AC = BD model, and so on.

第三章简要介绍了非线性发展方程的若干求解方法,如反散射方法,对称与微分方程约化,Backlund变换和Darboux变换方法,Hirota双线性方法,Painleve奇性分析法,AC=BD框架下的精确求解等。

Cklund transfo- rmation、Inverse scattering method、Darboux transformation、Hirota bilinear method、similarity reduction eta.

cklund变换法、反演散射方法、达布变换法、Hirota双线性方法、相似约化法等。

The Laplace Transform; The Region of Convergence for Laplace Transforms; The Inverse Laplace Transform; Geometric Evaluation of the Fourier Transform from the Pole-Zero Plot; Properties of the Laplace Transform; Analysis and Characterization of LTI Systems Using the Laplace Transform; System Function Algebra and Block Diagram Representations; The Unilateral Laplace Transform..

教学内容:拉普拉斯变换;拉普拉斯变换收敛域;拉普拉斯反变换;由零极点图对傅立叶变换进行几何求值;拉普拉斯变换性质;常用拉普拉斯变换对;用拉普拉斯变换分析和表征线性时不变系统;系统函数的代数属性与方框图表示;单边拉普拉斯变换。

Mastery: The Laplace Transform, The Region of Convergence for Laplace Transforms, The Inverse Laplace Transform, Properties of the Laplace Transform, Some Laplace Transform Pairs; Analysis and Characterization of LTI Systems Using the Laplace Transform, System Function Algebra and Block Diagram

基本要求:掌握拉普拉斯变换定义,拉普拉斯变换收敛域,拉普拉斯反变换,拉普拉斯变换性质,用拉普拉斯变换分析和表征线性时不变系统,系统函数的代数属性与方框图表示;熟悉常用拉普拉斯变换对,单边拉普拉斯变换;了解由零极点图对傅立叶变换进行几何求值。

Mastery: The Laplace Transform, The Region of Convergence for Laplace Transforms, The Inverse Laplace Transform, Properties of the Laplace Transform, Some Laplace Transform Pairs; Analysis and Characterization of LTI Systems Using the Laplace Transform, System Function Algebra and Block Diagram Representations;Roth Criterion;Mason Equation of the Signal Flow Graphs.

基本要求:掌握拉普拉斯变换定义,拉普拉斯变换收敛域,拉普拉斯反变换,拉普拉斯变换性质,用拉普拉斯变换分析和表征线性时不变系统,系统函数的代数属性与方框图表示,罗斯判别,信号流图的梅森公式;熟悉常用拉普拉斯变换对,单边拉普拉斯变换;了解由零极点图对傅立叶变换进行几何求值。

The Laplace Transform; The Region of Convergence for Laplace Transforms; The Inverse Laplace Transform; Geometric Evaluation of the Fourier Transform from the Pole-Zero Plot; Properties of the Laplace Transform; Analysis and Characterization of LTI Systems Using the Laplace Transform; System Function Algebra and Block Diagram Representations; The Unilateral Laplace Transform.;Roth rule ;Signal Flow Graphs.

教学内容:拉普拉斯变换;拉普拉斯变换收敛域;拉普拉斯反变换;由零极点图对傅立叶变换进行几何求值;拉普拉斯变换性质;常用拉普拉斯变换对;用拉普拉斯变换分析和表征线性时不变系统;系统函数的代数属性与方框图表示;单边拉普拉斯变换;罗斯准则;信号流图。

The analytic expressions for the displacement components and stresses at any point of an infinite micropolar orthotropic elastic medium with an overlying elastic half space as a result of moving inclined load of arbitrary orientation were obtained.

在无限大微极正交各向异性弹性介质上覆盖弹性介质的弹性半空间的任意点上,作用着任意方向倾斜的移动荷载,给出了位移分量和应力的解析表达式·假设倾斜荷载是法向荷载和切向荷载的线性组合·利用Fourier变换采用特征值方法,并利用数值技术反演了Fourier变换·给出了铝环氧树脂复合材料的数值结果图形

The Laplace Transform; The Region of Convergence for Laplace Transforms; The Inverse Laplace Transform; Geometric Evaluation of the Fourier Transform from the Pole-Zero Plot; Properties of the Laplace Transform; Analysis and Characterization of LTI Systems Using the Laplace Transform; System Function

教学内容:拉普拉斯变换;拉普拉斯变换收敛域;拉普拉斯反变换;由零极点图对傅立叶变换进行几何求值;拉普拉斯变换性质;常用拉普拉斯变换对;用拉普拉斯变换分析和表征线性时不变系统;系统函数的代数属性与方框图表示;单边拉普拉斯变换。

In the ***, all types and fundamental principles of Radon transform are summarized systematacially. This *** starts from the general linear Radon transform, and then researches how to use the damped least square method to find the solution of the forward transform. However, the least squares smoothing effect will lead to a certain degree of trails in the data of Radon domain, which led to the application\'s limitations. After that the implementation in Radon domain and relative merits of linear Radon transform, parabolic Radon transform and polynomial Radon transform which have time invariance are introduced, the conjugate gradient method that can solve numerical solution is also given. And then the high resolution Randon transform is discussed, it introduces the regularization theory and Bayes principle into inversion, which successfully remove the negative affect caused by discrete Radon transform. Finally, we introduce the optimal weighting similar coefficient Radon transform, which adapt to the time variant quality of hyperbolic Radon transform.

本文系统总结了Radon变换的各种类型及其基本原理,从τ- p变换(即一般线性Radon变换)出发,研究利用阻尼最小二乘平方法求解其正变换,但是最小平方法的平滑作用会导致Radon域数据存在一定程度的拖尾效应,给这种方法的应用带来了很大的局限性;然后先容了具有时不变性的线性、抛物和多项式Radon变换在频率域的实现及其优缺点,给出了求解其数值解的共轭梯度算法;接着讨论了高分辨率Radon变换,它把正则化思想和贝叶斯原理引进到了反演中,很好的克服了离散Radon变换产生的截断效应对结果的不利影响;最后先容了适应双曲Radon变换时变性质的高分辨率最优相似系数加权Radon变换。

The study of heterogeneous mapping algorithm based on the human eyes space-variant system. According to the "one-one mapping ring" and mapping direction we classify the mapping transformation into two sorts: forward algorithm and reverse algorithm. Based on the general rules of constructing this mapping model linear model and arctangent model are studied and verified.

本文基于人眼的空间分辨率可变视觉理念,研究了非均匀采样变换实现算法和非均匀采样变换的尺度轴转换与角度轴转换具有的"一一映射环"以及非均匀采样实现的两类转换:正向转换与逆向转换;在非均匀采样转换模型的基本构造规则基础上,讨论了区别于对数极坐标转换的线性非均匀采样模型及反正切非均匀采样模型的建立。

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With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务,乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐,因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。

Closes the eye, the deep breathing, all no longer are the dreams as if......

关闭眼睛,深呼吸,一切不再是梦想,犹如。。。。。。