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For the process of forming member gear, the machine setting parameters for Free-form generators can be determined by either direct or equivalent transformation, both methods coincide with each other. For generated pinion, the author utilizes a imaginary modified member gear to get original machine setting parameters for traditional cradle-type generator, and then establishes a mathematical model including the second and third order contact parameters of the gear pair for optimal synthesis to optimize the quality of contact transmission of the gearing.

对于成形法加工大轮可以直接或通过等效转化的办法确定Free-form型机床的调整参数,二者是完全一致的;对于展成法加工小轮,作者利用假想修正大轮的概念获得传统摇台类机床调整参数的初值,然后建立包含齿轮副二阶接触参数和三阶接触参数的优化数学模型,以优化齿轮副的啮合传动质量。

Methods By analyzing the adaptive optimization algorithm of weight order statistic filter, the adaptive optimization algorithm for rank selection filter has been derived.

分析加权顺序统计滤波器的优化算法,由此导出秩选择滤波器的自适应优化算法。

By iteratively combining these two procedures we achieve a way of training the configuration of RBFNN. In addition, the algorithm is very robust with respect to the noise level. Simulation experiments show that the proposed algorithms are sound. In chapter 3, which is the extension of chapter 2, the improvements of the architectures of RBFNNs and the solutions of their relating problems are discussed, Firstly, an new distance metric is advanced and a forward orthogonal least square selection procedure is applied to learning the parameters of classification function and selecting the important input nodes.

首先分析了目前存在的同时确定RBFNN结构和参数的方法的缺陷,在此基础上提出了用基于拉马克的进化学说的进化编程算法来改进算法,以克服某些缺陷;然后针对受到严重噪声污染的系统,如何提高RBFNN的泛化能力的问题,利用基于AIC的适应度函数的改进遗传算法学习结构和参数;最后介绍基于MDL原理的方法,将优化网络的结构和参数分为两个阶段:训练和进化,先自适应地改变RBFNN基函数的中心和宽度,同时训练输出线性权值,再用基于MDL原理的适应度函数的标准GA来优化隐层节点,通过交替使用这两过程达到训练RBFNN的结构和参数的目的,该算法具有较强的鲁棒性。

In order to optimize the structure parameters of the tower, the orthogonal design method is used.

为了优化塔架的结构参数,采用正交设计对其结构尺寸进行了优化

The nonlinear simplx method with punish function are used to optimize the Osculating -Cone waverider with lift-to-drag ratio as the objective function and volumetric efficiency .length as limitation.

进一步的优化过程采用结合惩罚函数的单纯形法对吻切锥乘波机以升阻比最大为目标、以容积效率、长度为约束条件进行了乘波机构型优化,生成了更为适合应用的乘波机外形。

The synthetic punitive function combining internal point and outer point, and Powell optimal techniques are used in the control system to find the optimal point of the objective function among the real conditions. The AOCPF package has run for about one week in the semiselective flotation circuit of this plant.

为了在约束条件规定的现实范围内找到目标函数的最佳点,作者将内点法与外点法相结合的混合罚函数法、Powell优化方法引入了浮选过程的自适应优化控制。

Distinct from those methods, this paper's main idea is to reformulate CPs as an unconstrained minimization problem with the form of least squares of a system of overdetermined equations being equivalent to the CPs.

与这些方法不同,本文的基本思想是借助互补问题与某个超定方程组同解的事实,利用该方程组的最小二乘形式将原问题直接转化为无约束优化问题,这样不仅把问题转化为光滑优化问题,而且避免了引入光滑参数导致的不便。

Just did good website, do not undertake overmuch Seo optimize, do not do even optimize.

刚做好的网站,不要进行过多的seo优化,甚至不要做优化

A sort of rather special dynamic programming method------arithmetic of transfer close package is adopted to optimize the problem which judge whether a path exist and seek least cost path between a couple of random nodes in intellectual integrating data warehouse information.

同时,公安数据仓库信息智能集成经常要涉及到某两个节点之间是否有路径存在,寻找任意两节点间最小代价的路径的问题,本文作者利用一种较为特殊的动态规划方法------传递闭包算法来优化,得到一种收敛较快、适应广泛而又简单易行的优化方法。

Based on modern optimization theory and optimal control theory, this dissertation studies some questions as follows:1. The optimization model of parameter identification of three-dimensional geologic history numerical simulation, algorithm and its applicationGeologic history numerical simulation is a basic content of basin numerical simulation, and the porosity is the major parameter in the evolution and development process of oil-bearing basin. According to the sedimentation and burial mechanism, the physical and chemical principles of oil geology, the mudstone porositys non-linear parabolic partial differential equation has been established.

本文应用现代最优化及最优控制理论,对如下一些问题进行了研究: 1、三维地史数值模拟的参数辨识优化模型、算法及应用地史模拟是盆地数值模拟的一个基础性的研究内容,地层孔隙度是含油气盆地地史演化发育过程中的重要参数,根据地层沉积埋藏机理和石油地质的物理化学原理,通过引入数学物理方程概念,建立了泥岩三维孔隙度场方程,根据问题的特点,给出了方程的定解条件,对方程的动边界也给出了处理方法,并且证明了解的存在性与惟一性,在此基础上建立了以当今实测数据为拟合准则的三维地史数值模拟的参数辨识优化模型,这是一个含有二阶偏微分方程约束的泛函极值问题。

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推荐网络例句

We have no common name for a mime of Sophron or Xenarchus and a Socratic Conversation; and we should still be without one even if the imitation in the two instances were in trimeters or elegiacs or some other kind of verse--though it is the way with people to tack on 'poet' to the name of a metre, and talk of elegiac-poets and epic-poets, thinking that they call them poets not by reason of the imitative nature of their work, but indiscriminately by reason of the metre they write in.

索夫农 、森那库斯和苏格拉底式的对话采用的模仿没有一个公共的名称;三音步诗、挽歌体或其他类型的诗的模仿也没有——人们把&诗人&这一名词和格律名称结合到一起,称之为挽歌体诗人或者史诗诗人,他们被称为诗人,似乎只是因为遵守格律写作,而非他们作品的模仿本质。

The relationship between communicative competence and grammar teaching should be that of the ends and the means.

交际能力和语法的关系应该是目标与途径的关系。

This is not paper type of business,it's people business,with such huge money involved.

这不是纸上谈兵式的交易,这是人与人的业务,而且涉及金额巨大。