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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 diffusion structure has important impact on the rate of the diffusion and safety intensity for block cipher.Using the linear transform which has branch numbers as large as possible as the diffusion structure is a main method to devise block cipher.The linear transform is usually achieved by constructing the invertible matrix.

扩散结构的好坏直接影响了分组密码的扩散速度和安全强度,以分支数尽可能大的线性变换为分组密码算法的扩散结构是设计分组密码的一种重要方法,线性变换的构造可通过可逆矩阵的构造完成。

According to invalidate transform between non-linear constraining function and linear constraining function, and the disable partial differential coefficient of first order for objective function, GA has been chosen for the built mathematic mode, also, the conception of GA, its computing process, features, and operating parameters are introduced irrespectively in this article, meantime, a managerial software for oil pipeline's optimization is programmed.

根据优化模型中的非线性约束函数无法化为线性约束函数,目标函数无法求一阶偏导数的特点,本文从众多优化方法中选择遗传算法对所建立的数学模型进行求解,并对遗传算法的概念、计算步骤、特点、运行参数等逐一进行介绍,并编写了输油管道优化运行管理的软件。

With increasing loading, the reduction degrees of average correlative coefficients of linear fitting functions of isochronous stress axial strain curve and isochronous stress-radial strain curve are 0.97% and 0.67% respectively, which indicates the linear correlation decreases commonly.

随加载应力水平的提高,应力-轴向应变等时曲线和应力-径向应变等时曲线线性拟合函数的平均相关系数下降幅度分别为0.97%和0.67%,线性相关性普遍降低。

The average correlative coefficients of linear regression function for isochronous stress- axial strain curve are 3.92% higher than that of average correlative coefficients of linear regression function for isochronous stress- radial strain curve, so nonlinear creep property of the fine sandstone specimen in axial direction is correspondingly weaker than that in radial direction.

应力-轴向应变等时曲线线性回归函数的平均相关系数高出应力-径向应变等时曲线线性回归函数的平均相关系数3.92%,因此其轴向非线性蠕变特性相对于径向非线性蠕变特性更弱。

Of arbitrary isogon of arbitrary linear symmetry transformation , breaking the former only for a fixed linear symmetry transformation , eliminating the symmetry of the fixed line every time when the importation of trouble

详细说明:这是关于任意正多边形关于任意直线的对称变换,打破了以前的只能对于一个固定的直线的对称变换,省去了关于固定直线对称时每次都要输入的麻烦

Secondly, for the spascial AF C* algebra-UHF algebra, I study the linear characterization of 2-local isometry on it: make use of the frame attribute, find the trace state of UHF algebra according to the one of matrix algebra and verify the 2-local isometry is linear.

充分利用UHF代数的结构特点,利用矩阵代数的迹态找到UHF代数的迹态,从而证明了2-局部等距的线性性质。

Each step of the iteration is to solve a linear semi-infinite programming that is transformed into a linear programming by frequency discretization.

每步迭代都是求解一个线性半无穷规划,通过离散化处理线性半无穷规划可以转化为线性规划来求解。

To sum up, a non-interior-point smoothing algorithm for solving the complementarity problem is proposed in this dissertation, which outperforms many existing non-interior-point smoothing algorithms in the sense that only one system of linear equations is solved and one linear search needs to be made for the solution at an iteration step.

特别是,本文提出的非内点光滑型牛顿算法在求解上述问题的过程中,在每一个迭代点处只需要解一个线性方程组和做一次线性搜索,比已有文献中的算法具有更大的优越性。

The linear range of α-lactalbumin and β-lactoglobulin were respectively 0.25~1.75 μg and 0.16~1.44 μg. There were good linear correlations about the two components.

外标法定量,α-乳白蛋白和β-乳球蛋白两种组分线性范围分别为0.25~1.75μg和0.16~1.44μg,线性关系良好,相关系数分别为0.9940和0.9912。

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It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发,分析对称连杆曲线上鲍尔点的产生条件,提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品,年生产总值3000万美元,产品价廉物美、选料上乘、质量保证,深受国内外客户的青睐

The eˉtiology of hemospermia is complicate,but almost of hemospermia are benign.

血精的原因很,以良性病变为主。