查询词典 affine transformation

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。

The bilinear equations and bilinear B〓cklund transformation for the mKdV-SineGordon equation are obtained, and an ordinary form of B〓cklund transformation is given in passing.

仍以Toda链、Blaszak-Marciniak链和Ablowitz-Ladik链为例，但该方法也完全适用于下述更一般形式的谱问题：ψφ=λφ，ψ=〓，s 本文还对mKdV-SineGordon方程的求解进行了研究。

The 2-D bilinear transformation digital circuit from 1-D analog domain to 2-D discrete domain has been presented, which can ensure the exact realization of 1-D to 2-D bilinear transformation.

将此二维双线性变换数字电路用于2-D跳耦型数字滤波器的电路中，即可获得一种新的，稳定的二维数字滤波器实现。同二维波数字滤波器一样，2-D跳耦型数字滤波器亦以1-D无源LC双端接载梯型滤波器为导出原型。

Attention to the transformation of enterprises and the transformation of the bourgeois elements combine.

注意把对企业的改造和对资产阶级分子的改造结合起来。

As the author commit new viewpoints on the role of broking, the causes of the transformation, the principle of the transformation, etc.

本研究紧紧围绕我国的证券市场和经纪业务发展的实际，求真务实，克服了单纯理论分析的不足。

In this article,byJordan-Winger transformation,the weakly dimerized spin-1/2 anti-ferromagneticchain is transformed into quantum sine-Gordon model in the continuum limit.Onthe fundament of self-consistent field the usual field variable and canonical momen-tum are rescaled by using the Bogoliubov transformation.

我们利用Jordan-winger变换，在连续表象把量子二聚化spin-1/2反铁磁链哈密顿变换至sine-Gordon方程，在自洽场理论的框架内利用Bogoliubov变化重新标度了常规场变量和动量，有效地解决了远红外发散问题，自洽地得到了基态能和激发谱。

A novel matrix transformation, Multiple Cayley Transformation, and its application to the power system small signal stability analysis is presented.

提出了一种新型矩阵变换——多重Cayley变换方法，并将其用于电力系统小干扰稳定性分析。

Glucosidase and 3-dehydrogenase of HCCB 20049-2 are induced by sugar. After studying the relationship within inducing factors、enzyme activities and transformation rate, it was found that when cellobiose was used as inducer, enzyme activities and transformation rate were both higher than other sugars.

HCCB 20049 菌中β-葡萄糖苷酶及3-脱氢酶均为糖类诱导酶，对这两种酶的诱导因子与酶活力和有效霉素的转化率的关系进行研究，发现纤维二糖诱导的β-葡萄糖苷酶和3-脱氢酶活力都较高，其valienamine 的生成率最高。

By taking advantage of a corollary of the Desargues theorem and the corresponging extension of Desarguesian configuration, the concept of stereohomology has been defined in projective geometry and presented based on homogeneous coordinates. Consequently, a series of geometrical transformations, such as central projection, parallel projection, centrosymmetry, translation transformation, reflection, rotation transformation, which can be contained in it or derived from it have also been analytically defined.

利用Desargues定理的一个推论和引申的Desargues图形，给出"空间透射"在射影几何意义下基于齐次坐标表象的解析定义，从而解析定义了可蕴涵其中的中心投影、平行投影、中心对称、平移、反射等几何变换以及可由此衍生出的旋转变换。

The results show that K-L transformation is an effective means to attenuate noise and improve signal noise ratio, and the effect of inhibition of the noise with K-L transformation is associated with the number of characteristic value.

结果表明，K-L变换可压制噪声提高信噪比，去噪的效果与所选取的特征值的个数有关。

Listen,point and check your answers.

听，指出并且检查你的答案。

Warming needle is one of effective treatment methods for knee arthralgia aggravated by cold,and it is simple,safety,so it should be developed in clinical acupuncture and moxibustion extensively.

但以本院科针灸门诊在2005年1月—2006年6月期间共收治膝痛患者100余例，经过临床的诊断后，其中施以温针治疗的48例，疗效显著，报道如下。1临床资料本组病例48