查询词典 three body problem

We use the Leggett and Williams fixed point theorem to discuss the existence of three positive solutions for the boundary value problem of second-order nonlinear functional differential equation.

我们使用Leggett和Williams不动点定理讨论了二阶非线性泛函微分方程边值问题的三个正解的存在性。

Further, we introduce the concept of partially symmetric positive solution and discuss the existence of three partially symmetric positive solutions for the boundary value problem of second-order functional differential equation.

进一步，我们引入了部分对称正解的概念，并讨论了二阶泛函微分方程边值问题的三个部分对称正解的存在性。

Lastly, the existence theorem of three positive solutions for the boundary value problem of second-order singular functional differential equation be established by applying the index theory of fixed points in a cone.

最后，我们应用锥上的不动点指标理论建立了二阶非线性奇异泛函微分方程边值问题的三个正解的存在性定理。

This technique makes it possible to reproduce a three-dimensional stereo by getting fundamental matrix through matching pixels. But it is the most difficult problem to be solved completely.

本文对立体匹配的相关理论与算法进行了细致的研究，采用小波变换提取图像突变特征点的方法，并与传统采用的角点方法在性能上作了一些比较。

By Galerkin meshless method, the equations of motion of static rectangular membrane is established. The first ten natural frequencies of the different aspect ratios and the different pull ratios of rectangular membrane with four clamped edges, three clamped edges and one free edge, two opposite free edges and other two clamped edges were calculated. It is feasible and valid to solve the transverse vibration problem of membrane by Galerkin meshless method.

采用伽辽金无网格法，建立了矩形薄膜横向自由振动的运动方程，并对四边固支、三边固支一边自由、一对边固支另一对边自由三种边界条件下，薄膜的不同长宽比及不同单位长度拉力比作用下的矩形薄膜的前十阶固有频率进行了数值计算，结果说明伽辽金无网格法用于求解薄膜横向振动问题是切实可行的。

Key words:the three dimensional contact problem with friction;nonlinearcomplementary;nonsmooth equations;generalized derivative;nonsmoothmethod;convergence analysis

给出了三维摩擦接触问题的一个非光滑混合不动点模型及算法，这种算法无须求导数，没有引进任何额外变量，并且可视为一种三维摩擦接触问题的迭代法，利用非光滑分析和不动点理论对算法做了分析，给出了算法的不动点理论背景及算法的理论分析，为模型解的存在性及算法收敛性提供分析依据，最后给出了相应的数值算例。

The author firstly combs the teachers sources of Shuyuan in Ming and Qing dynasties, points out that there are four main sources for it, and concludes that making full use of social resources is a valid path to solve the problem of teachers sources then.Secondly, the present research consults Shuyuan teachers employment way in Ming and Qing dynasties, combs its three ways and deeply inquires into the subjective and objective condition for them.Thirdly, the present research analyses Shuyuan teaching characteristics, management and promotion, sums up seven main teaching characteristics and analyses the advantage and disadvantage of them,Further more , the present research consults Shuyuan teachers management and promotion, makes an analysis on its historic courses why it"s informal.Finally, the present research analyses the Shuyuan teachers" economic treatment, social status and the influence and effect made to the politics, economy, military, social life and cultural education where they were situated in Ming and Qing dynasties, and concludes that the Shuyuan teachers in Ming and Qing dynasties actively participated in the local social activities in their peculiar upper class gentlemanship and greatly influenced and promoted the policy making and carrying out of the local public affairs, meanwhile, they promoted the communication and development of local learning and culture , and trained quite many men for profession for the locals.

作者首先对明清时期书院教师的来源进行了梳理，指出了明清书院教师的四种主要来源，认为充分利用社会资源是明清书院解决教师来源的有效途径；其次，对明清时期书院教师的聘用方式进行了历史考察，梳理出明清时期书院存在着三种教师聘用方式，深入探讨了这三种方式并存的主客观条件；再次，对明清时期书院教师的教学特点进行了分析，归纳出七个主要教学特点，并说明其利弊；此外，探讨了明清时期书院教师的管理及升迁问题，分析了其存在的不规范性的历史原因；最后，剖析了明清时期书院教师的经济待遇、社会地位及对书院所在地的政治、经济、军事及社会生活与文化教育所可能产生的作用与影响，得出明清书院教师以自己特有的上层绅士身份与地位积极地参与到当地社会生活之中，并在相当程度上影响与促进了地方公共事务的决策与实施；同时，他们促进了当地学术及文化的交流与发展，为当地培养出了大批的杰出人才。

In Chapter 3 we study the global existence and uniqueness of the multidimensional free boundary problem which include three elliptic equations.

第三章是对具有三个椭圆方程组成的高维自由边界问题的整体解的存在唯一性的研究。

To the problem of the low precision of common magnetometers caused by the influence of the background magnetic field,a new fluxgate gradiometer which is based on the technique of the three-tip fluxgate and the structure-type of two sensors is developed.

针对普通磁力仪测量磁场的梯度存在受背景磁场的影响大，从而导致测量精度低的问题，采用三端式磁通门技术和双探头的结构型式，试制1种三端式磁通门磁力梯度仪，其对背景磁场和磁强梯度均实现闭环测量。

After the background of problem has been described, graphical method is used to determine the stroke of cylinder, and then approximation method is used three times to get the answer.

在介绍了问题的背景后，使用图解法首先确定气缸的行程及其规格，然后通过从一边试探的方式，三次试探就得到了问题的解答。

Alternatively, the con- trollers can use the synchronous rectifier itself or loss- less inductor current-sensing methods to provide overload protection with lower power dissipation.

另外，康威特罗勒斯可以使用同步整流器本身或亏损减少电感电流检测方法，以提供低功耗过载保护。

Mr. Dauber's other Schatz hangs in his home movie studio.

多伯把沙兹的另一件作品挂在家里的电影室。