求解

The solutions of thin bending rectangular plate with one subtense edges simply supported and the other subtense edges free, large deflection under uniform pressure are obtained by the Reciprocal Theorem Method in this paper. From the results it can ha found that the method is valid in non-linear questions and develops a new access.

主要应用大挠度弯曲薄板的第二类功的互等定理，求解在均布载荷作用下一对边简支一对边自由矩形板的挠曲面方程，计算结果表明，大挠度弯曲薄板功的互等定理在解决非线性问题方面简单有效，为求解相关大挠度问题开辟了一个新的途径。

In order to overcome this problem, in this paper, the surface electric current of the conducting sea surface and the first-order scattering from the conducting plate are obtained by employing Physic Optics method. The backscattering field of the time-dependant sea surface is calculated by using Kirchhoff Approximation. Meanwhile, taking the advantage of a newly developed technique that utilizes the reciprocity theorem, the difficulty in formulating the secondary scattered fields from the composite target is reduced. The dependences of the backscattered field on the parameters, such as the wind speed and the sizes of the plate are discussed.

为了克服这一问题，本文应用物理光学近似求解了导体海面表面电流及导体平板的一阶散射场，应用基尔霍夫近似给出了海面的后向散射场，同时借助互易性定理降低了求解平板和海面之间二次耦合散射场的难度，讨论了平板尺寸、风速等对后向复合散射场的影响。

Above all by hand in dc network to the coupling between concerns and be changed stream implement changeover equation, derivation gives rectangular coordinates to fasten matrix of the Jacobi that makes dc system, Hessian, the means that offers section to seek solution in the light of the change that makes dc system control fashion next begs solution voltage to stabilize the usable transmission ability below tie condition.

首先由交直流网络间的耦合关系和换流器转换方程，推导出直角坐标系交直流系统的Jacobi、Hessian矩阵，然后针对交直流系统控制方式的改变提出分段求解的方法求解电压稳定约束条件下的可用传输能力。

If the step of the linear system question is not very high, direct solving method is better; if coefficient matrix of the linear system question is not regular and large-sparse matrix , direct solving method does not settle the storage question.

而在求解线性方程组的许多实际问题中，尤其在偏微分方程的差分方法与有限元方法求解问题之中，方程具有重要的特征，一是多为大型稀疏矩阵；二是满足一些条件如对称正定、对角占优等，这使迭代法得到广泛的应用。

This article summarizes the advantages of direct optimized law in working out inequality constraints, and proposes the way to carry on the simulation with the regular polyhedron law to the standard unitary flood noose curve.

简述了直接优化法求解不等式约束问题的优越性，提出了用正多面体法对标准单式洪水绳套曲线进行模拟的思路及程序求解方法，分析了正多面体法模拟标准单式洪水绳套曲线的可行性，为进一步利用水位推求流量创造了条件。

The fluid flow process in the model was analyzed,and the mathematical models for solving capillary pressure and relative permeability were set up.

分析了流体在模型中的流动过程，建立了求解毛细管压力和相对渗透率的数学模型，对模型进行求解后得到了与理论相符的结果。

Classic Chinese Remainder Theorem solving program, you have to import the solution congruence theorems can be solved by!

经典的中国剩余定理求解程序，输入你所要解的同余式即可按定理求解！

This paper discusses a fast calculation method of GPS carrier phase integer ambiguity resolution, analyze independent variables in search space, derivate new residual transition matrix which directly associates all measurement error with minimum search space, and search space is minimized through selecting the ambiguity combination which is consistent with satellite geometry size and measurement error.

探讨了一种GPS载波相位整周模糊度的快速求解方法，分析了搜索空间中的独立变量，推导出了新的传递矩阵。该矩阵将所有的测量残差直接和最小求解搜索空间相关联，通过仅选择那些与卫星几何尺寸和测量残差一致的模糊度的组合，搜索空间被最小化。

In order to study the numerical method to solve the viscous incompressible flow with free surface, the 3-D mathematical model for steady and unsteady hydrodynamic problem had been established and closed by k-εbuoyant turbulence model. The algebraic coordinate transformation method was used to fit the free surface, the Runge-Kutta method of three step and second precision was devised to simulate the time step. A high precision up-winding compact scheme was studied for the convection term, and the generalized conjugate residual method was set to solve the Poisson equation.

为了研究粘性不可压缩三维问题的数值求解方法，本文从基本的Navier-Stokes方程出发，采用代数拟合方法处理自由表面，用三级二阶Runge-Kutta方法对时间步进过程进行了模拟，并且对对流项的高精度迎风格式进行了研究，给出了求解压力Poisson方程的广义共轭剩余法，从而建立了能够模拟有自由表面的粘性不可压缩问题的定常、非定常三维水动力学模型，并采用k—ε浮湍流模型对其进行封闭。

As examples of applying our method, the quantum vacuum effect induced by two moving boundaries is studied in the case where the two mirrors oscillate resonantly.

把求解具有单动边界时的Moore方程的数值方法推广到双动边界情形，提出了广义Moore方程的数值求解方法。

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