查询词典 problem

On the basis of analyzing detailedly the correlative conclusions of the extreme value problem of two variable Function , this paper extends the essential condition and sufficient condition to multi-variable function by using the Taylor Formula 、Quadratic Form 、Hesse Matrix and so on,and gives a method to judge the extreme value of point whose vice-derivative doesn't exist by utilizing Lagranges theorem ,so that compensates for the blank above ,which turns idea that solve the extreme value of multi-variable function problem one by one into realities.

摘要本文在对二元函数极值问题的相关结论进行分析的基础上，用泰勒公式、二次型、海赛矩阵作为工具，将二元函数极值的必要条件和充分条件推广到多元函数的情形，而且还利用拉格朗日中值定理找到了一个判别不可导点处极值的方法，从而弥补了多元函数不可导点处极值无法判断的空缺。因而，使得用穷举判断的方法来解决多元函数的极值问题这一思路成为现实。

Bring forward a kind of learning algorithm fitting on the base of spline function, because the spline function has good flexibility and quadratic smoothing property, the search problem of network weight functions training can be converted into the resoluting extreme value problem of the plurality function through using spline function to represent network input and link weight functions, thus the PNN can be trained with the help of the existing neural network learning algorithms;④build a kind of learning algorithm base on the alternate of Walsh function, the complexity of network computing can be decreased through using the complete orthogonality of Walsh function corollary.

应用结果表明该算法收敛速度快，稳定性好；③提出了一种基于样条函数拟和的学习算法，由于样条函数具有很好的柔韧性和二次光滑性，将网络输入函数和连接权函数用样条函数的形式表示，可把网络权函数训练的函数寻优问题转换为多元函数求极值的问题，从而可借助于现有的神经网络学习算法训练过程神经元网络；④建立了一种基于Walsh函数变换的学习算法，利用Walsh函数系的完备正交性，可大大降低网络计算的复杂度。

In chapter2 we obtain the constructure theorem and intechange theorem of 2-tournaments.wefind the correlation between the number of 3-cycles and 2-cycles in 2-tournament andits score vector,discuss a class of extreme value problem of tournament,answer partlya open problem posed by Brualdi.

第二章讨论了2-竞赛图和竞赛矩阵的一些基本问题：存在性和结构问题，证明了具有相同得分向量的任意两个2-竞赛矩阵可以通过三角形转换而互相得到，得到了2-竞赛图中2-圈与3-圈的数目与得分向量之间的关系式；讨论了2-竞赛中的一类极值问题，部分地回答了Brualdi〓的一个问题。

People are talking about problem beteew south and north is very extrude, I think it a develop problem.

人们都在讲南北问题很突出，我看这个问题就是发展问题。

With the developing of economic and improving of society, the energy supply problem and environment pollute problem becomes more and more extrude.

随着经济的快速增长和社会的全面进步，我国的能源供应和环境污染问题越来越突出。

Like reforming outside the system in our country,we research the economic development in the minority region outside the system,that is winding out the minority factor.after the latent capacity of extensive increasing gives play to,the minority factor becomes impassable furtherly in the economic development of minority region,because it can not solute the problem that how to mix the minority factor with the problem of the economic development in minority region,the academic circle sinks into the passive condition of application and countermeasure study,adapt to this learning dilemma,the minority region is at a late-developing stage,ignoring the minority factor imitating simply the development and industrial model of the developed region is a fairly universal selection of economic development, Adapt to the selection.,On the development policy in the minority region,A high premium comes to be placed on the tilting of the policy and helping of the economic things.

与我国体制外改革相类似，长期以来我们对民族地区的经济发展也是"体制外"及绕开民族因素进行的，这种发展模式在粗放增长的潜力得到发挥之后，民族因素成为民族地区经济进一步发展不可逾越的因素，由于无法解决如何融合民族因素和民族地区经济发展的问题，学术界陷入应用研究和对策研究的被动局面。

Nowadays, the urban environment's problem that we fall across is in the final analysis the problem of human.

目前国内外遇到的城市建设的问题，归根结底就是人的问题。

But, when the problem scale is getting larger, the number of feasible solutions provided by constraint programming is also getting too huge and it very difficult to solve the whole problem with a reasonable computation.

但是当问题范围增大时，限制规划求解的困难度也随之增加。因此，期望这项问题可以作为未来研究限制规划求解人员排班问题的一个改进方向。

Starts with the three parts of the relationship of the villages and towns government and the villager committees and the relationship of the two rural committees and the relationship of the two rural committees and villager, analyzes how the agriculture tax-and-fee reformation effects on the villagers" autonomy systematically, and think the agriculture tax-and-fee reformation will be advantageous to die down "theadministeration turn" of the village committees, meliorate the relationship of the two rural committees and the crowd, alleviate the two rural committees antinomy, promote organization construction of the two rural committees, but in the meantime also bring some series problems for the village autonomy such as public finance problem, tax fee tail owe problem etc., in the end put forward that we should push forward the villager" autonomy of the post-agriculture tax ages from the four parts of the Grass-roots Government, relationship between officials and the masses, relationship between the two rural committees and the village collective economy.

本文针对以上问题，运用理论研究与实证分析、静态分析与动态分析相结合等研究方法，从乡镇政府与村民委员会关系、村"两委"关系以及村"两委"与村民关系等三方面入手，系统地分析了农业税费改革对村民自治的影响，认为农业税费改革将有利于减弱村民委员会的"行政化"、理顺村"两委"与群众的关系、缓解村"两委"矛盾、促进村"两委"的组织建设，同时也为村民自治带来了一系列问题，如财政问题、税费尾欠问题等，最后提出应从基层政权改革、干群关系、两委关系以及农村集体经济等四个方面来推进后农业税时代的村民自治。

Based on structural singular value theory, the robust control model for vibration response is built, and the design method of μ- synthesis controller is presented. The main ideal is as follows: by introducing fictive uncertainty, the robust performance problem of vibration response is transformed into the robust stability problem of the augmented system. It can be solved by D K iteration.

基于鲁棒结构奇异值理论，建立了振动响应的鲁棒控制模型，提出了设计鲁棒μ控制器的方法，通过引入虚构的不确定块，将振动系统响应性能的问题转化为广义系统的稳定鲁棒性问题求解，兼顾了系统的稳定鲁棒性和性能鲁棒性。

For the head-teacher of the class said that I had seriously broken the school rules,which led me to a three-day suspend class.

为什么呢？因为我的班主任说我严重的违反了校规，于是让我停课三天。

Many of them believe that the conversion of thousands of working-class folk in England spared that nation from the mass carnage and the tyranny that came with the revolution in France.

他们之中有许多人相信，在英国数以千计的劳工阶级之悔改信主使英国免於遭受如法国大革命所造成的大屠杀和专制暴政。