查询词典 semilinear transformation

This paper analysised and researched some existing algebra feature extraction method such as KL transformation, singular value decomposition、 Fisher linear discriminant and optimal discriminant transformation. On the base of this、we expound a method which named uncorrelated optimal discriminant transformation to accomplish the face recognition.Uncorrelated optimal discriminant transformation is a improvement of Fisher linear discriminant and optimal discriminant transformation.

本文对一些现有的代数特征提取方法如KL变换、奇异值分解、Fisher线性鉴别以及最佳鉴别变换做了分析和研究，在此基础上我们提出使用具有统计不相关最佳鉴别变换的投影方法来进行人脸识别，它是由Fisher线性鉴别和最佳鉴别变换改进、完善而来的。

In this paper,the following transformations are introduced in computer aided planar composition:sectorial transformation triangular transformation,trigonometric function/triangular wave transformation, madulation transformation and spherical mirror reflection transformation.

该文探讨和总结了在计算机辅助平面构成中的5种特殊变换：扇形变换、三角形变换、三角函数／三角波变换、调制变换、球面镜反射变换。

Then the structure unit of hexangular lattice is found according to the principle of invariable symmetry. Renormalization transformation is processed when we regard the structure unit and the growth model as graphs before and after transformation respectively. After choosing the11thermodynamic function fugacity as parameter, we can write out the partition functions before and after transformation and the formula of renormalization transformation. At the same time, we also work out the fixed points of transformation.

然后根据对称性不变的原则，从整体晶格中选取结构单元，把结构单元和生长模型分别作为重整化变换前、后的图形来进行重整化变换，选取热力学函数易逸度为参量，写出了重整化变换前后的配分函数和重整化变换关系式，求出了这一变换的不动点。

Using this model three competence-deficient pneumococci, which was identified by PCR and transformation experiment, were constructed. It is found different strain has different bacterial optimal density for being induced into competence. The optimal density for strains 1, 2 and 22 was 0.1, 0.08and 0.07 respectively. The optimal condition for transformation is c plus y culture at pH8.0. In c plus y culture at pH6.8, which restrained pneumococci forming transformation naturally, pneumococci could be induced to form transformation by CSP.It is concluded that we could induce different S.pneumoniae by CSP into competence in their optimal density in laboratory. 2. It was discussed the relationship between pneumococcal transformation formation and its opportunistic pathogenesis. Comparing their virulence with that of parental strains by challenging mice intraperitoneally and adhering to ECV-304 cell respectively.

结果表明不同肺炎链球菌株的转化最适菌密度不同，1、2和22号菌株的最适转化密度分别为0.1、0.08和0.07；用于转化的CTM培养基最适为pH 8.0的C+Y培养基；在自然转化下不能诱导转化发生的pH 6.8的C+Y培养基中，使用CSP诱导，也能促使细菌发生转化，只是转化效率较低；结论：实验室条件下，不同细菌在一定菌密度时可利用CSP诱导肺炎链球菌成为感受态发生转化。2、为探讨肺炎链球菌转化对毒力表达的影响，本研究分别通过体外粘附人脐静脉血管内皮细胞ECV-304和体内小鼠毒力实验观察1、2和22号肺炎链球菌和其转化缺陷菌株1t、2t和22t毒力的差异。

We can take Fourier transformation or Laplace transformation towards try to of square distance both ends according to the their lines property, differential calculus property and integral calculus property, its conversion for act for of elephant function square distance, from this algebra square the distance beg an elephant function, then take Fourier negative transformation or Laplace negative transformation have to originally square distance of solution.

我们可以根据他们的线性性质，微分性质和积分性质，对欲求的方程两端取Fourier变换或Laplace变换，将其转化为象函数的代理方程，由这个代数方程求出象函数，然后再取Fourier逆变换或Laplace逆变换就得出原来方程的解。

With the competent germinating epicotyl of cotton as receptor in exogenous gene transformation, NPTII (neomycin phosphotransferase Ⅱ) gene carrying selection marker and GFP reporter gene were mediated into cotton by agrobacterium-mediated transformation. The pre-culture time, bacterial-immersing time, co-culture time and antibiotics concn., etc of using agrobacterium-mediated transformation in the transformation of competent germinating epicotyl of cotton were studied.

方法］以棉花感受态萌动的上胚轴作为外源基因转化的受体，用农杆菌介导法将携带有筛选标记NPTII基因及GFP报告基因导入棉花，研究了农杆菌介导法用于棉花感受态萌动上胚轴转化的预培养时间，浸菌时间，共培养时间及抗生素处理浓度等。

The crux of the program is Fresnel transformation in which an inverse discrete Fourier transformation is involved. In the calculation of the transformation, the standard algorithms for fast Fourier transformation can be applied to enhance the efficiency of the program.

Fresnel变换是该程序的核心，Fresnel变换中可以应用逆Fourier变换，计算中可以利用快速傅立叶算法提高程序的执行效率。

This paper discussed the coordinate transformation method of WGS84 coordinate system to 1954-BeiJing Gauss grid coordinate. Introduced transformation model of WGS84 to Beijing 54 and computing method of transformation parameter. According to different model and computing method, computed and compared with the result combine real data. Think that adopt base-line vector quantity ask four parameters model have higher transformation precision.

本文详细讨论了WGS84大地坐标转换到北京54坐标系下的高斯平面坐标的方法，重点介绍了WGS84和北京54的空间直角坐标的转换模型及转换参数的计算方法，并根据不同的模型和计算方法结合实际数据进行计算和结果的比较，认为采用基线向量求解的四参数模型具有较高的转换精度，分区变换和提高控制点精度也能提高转换的精度。

We construct the generator of gauge transformation and the generator of BRST transformation, then we obtain gauge transformation and BRST transformation of component fields, we find certain relations between the BRST generator and the gauge generator.

我们构造了体系的规范生成元和BRST生成元，分别得到了场量的规范变换和BRST变换，发现超对称不同场的BRST变换与规范变换存在一定的关系。

Golden ratio of Fibonacci is introduced into Hadamard transformation and orthogonal transformation matrix is got, a kind of transformation is produced based on golden ration-haar wavelet, and clear physical means of the orthogonal transformation in time and frequency domain are analyzed.

在此基础上研究了Fibonacci正交变换，进而将Fibonacci序列中的黄金比引入Hadamard变换，产生一种正交变换矩阵。

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。