数值方程

Numerical experiments were performed to demonstrate the efficiency and efficacy of the proposed methods, for both smooth and piecewise smooth domains with exact and noisy data.

文中给出了数值算例说明了基本解方法和边界节点法求解椭圆型偏微分方程反问题的有效性，分析了基本解方法的收敛性，考察了光滑和分片光滑的几何区域以及数据精确和含有噪音两种情形。

KdV equation can bedescribed in the language of Poisson bracket,so we can exploit its bracket struc-ture to design numerical approximations.

KdV方程能用Poisson括弧的语言来描述，因此我们可以利用它的括弧结构设计数值逼近。

The electrical characteristics of SiC MOS devices are studied by solving the Poisson's equation.

通过对电中性条件和泊松方程的数值求解，研究了SiC MOS的电特性。

In CHAPTER 4,we consider the nonlinear Sobolev equationswhere Ω is a polygonal domain in Rwith boundaryΩ.

第四章研究数值积分对如下非线性Sobolev方程有限元方法的影响。

Nonlinear equation of a polynomial f = 0 in solving problems, I numerical analysis courses designed to do a procedure...

计算多项式非线性方程f=0的求根问题，本人数值分析课程设计做的一个程序，供大家参考，希望给予指正。

The assumption of the variable tendency of slip-line in active zone is made based on the numerical results. Combining the slip-line equations and boundaries, the formula of bearing capacity is deduced which can consider the density of soil. The formula of bearing capacity of strip footing on ponderable soil is also deduced assuming that the slip-line field of ponderable soil is the same with that of weightless soil, which is proved to be an upper-limit solution, as its the same with that deduced by the upper-limit method in Prandtl mechanism.

在数值计算结果的基础上，对有重土地基主动区滑移线变化趋势进行了合理假设，根据边界条件和特征线方程求得了条形基础极限承载力的解析表达式，该表达式可以计算考虑土重度的条形基础的极限承载力；获得了不考虑重度对滑移线场影响时(即有重土在普朗特尔滑移线场下)极限承载力的解析表达式，该表达式与普朗特尔机动场对应的极限承载力上限解的表达式相同，这就从理论上证明了在土重度对滑移线场没有影响这一假定前提下得到的极限承载力是一个上限；(3)利用上限定理求解了极限承载力的最小上限。

In this paper,five cases of prediction experiments for two typhoons in 1992 are carried out using a limited area two way movable nested primitive equation model for typhoon track prediction. The results show that the predicted tracks are well consistent with the observations.

采用一个有限区域原始方程双向相互作用的移动套网格台风路径数值预报模式，对1992年的两个台风进行了5个个例预报试验，结果表明预报路径和实况有很好的一致性。

Using a primitive equation model with a spheric band domain,a numerical study iscarried out of the effect on rainfall of 1991 Pacific SST anomaly in the leading region with theaffecting mechanisms investigated.

利用球圈范围的初始方程模式，就1991年太平洋主要海温异常区对降水的影响进行了数值试验，并对影响机制进行了讨论。

Thus a simple method is proposed for determining the value of reference node coordinate, that is to derive the cross-point of coordinate equation of Y, which represents the principal inertia plane and the one perpendicular to the other plane.

为此提出了一种参考节点坐标值的简易确定方法，即通过求解代表主惯性平面和与主惯性平面正交的另一平面同Y轴的交点坐标方程，根据抽油机支架上角钢的结构方式，取代数值较大的一个即可确定参考节点的位置。

Basing on the variation principle of solid-fluid coupled problem,on the situation of the tank being full filled,the essential method and principle have been found by using the numerical approximation of finite element method.

在罐车满载的情况下，根据固液耦合问题的广义变分原理，使用有限元的近似数值计算方法，找到解决满载罐车液固耦合振动问题的基本方法和原理，建立铁路罐车的固液耦合问题的动力学控制方程，并通过算例验证液体对罐车耦合振动的影响，得到在工程上所需要的分析结果。

But we don't care about Battlegrounds.

但我们并不在乎沙场中的显露。

Ah! don't mention it, the butcher's shop is a horror.

啊！不用提了。提到肉，真是糟透了。