逼近

The examples given have proved the advantage of the Boundary Element Method. In the analysis of the fracture mechanics using Boundary Element Method, the calculation model of one-quarter singular element has been established, and has been proved its validity.

把边界元法应用于线弹性结构断裂分析中，建立了裂尖奇异区分析的四分之一奇异元计算模型，算例表明，用四分之一奇异元分析断裂力学问题是一种有效的逼近裂尖场的数值方法。

Finally, the relationship of control and test is analyzed and the test method which combined the SMA and uniform design is put forward.

最后，分析了试验和控制的相互关系，提出了将序列模型逼近法和均匀试验设计相结合的燃烧模态控制地面试验方法。

In addition, for any f ∈ H〓 or H〓, the Sobolev space, the approximations of f , f′ and f are disscussed by means of the obtained sampling theorem.

另外，也给出Sobolev空间H〓和H〓中的函数、一阶导函数及二阶导函数的逼近表示。

Was also facing the threat of Soviet Russia in the north and the Kuomintang army in the south.

此外，对日本来说，北面有苏联的威胁，南面有国民党的力量不断逼近。

We all know that mother wavelet function can create waveletframe, and the kernel function with wavelet frame can build a group of basis insquare integral space only by translation.

由于母小波函数可以生成小波框架，我们用小波框架来构造核函数，而采用该核函数的SVM，能够逼近平方可积空间中的任意函数。

Adopt the arithmetic of synchronization disturbance random approach presented by Spall to train the Neural Network Controller by the output error of system.

采用Spall［1］提出的同步扰动随机逼近的算法，通过系统的输出误差对神经网络控制器进行训练。

The given method takes the Hermite interpolation curvcs and the cubic non-uniform B-spline curves as the special cases and unifies the representation of the curves interpolating the control polygon and the cubic non-uniform B-spline curves approximating the control polygon.

所给方法以Hermite型插值曲线和非均匀三次B样条曲线为特殊情形，将插值于控制点的曲线和逼近于控制多边形的非均匀B样条曲线统一起来。

With the structure of FNN turning more complex, the good approach or classification is hard to get because of redundancies and uncertainties caused by both large volume uncertain data and lack of prior knowledge. Based on high order spectral reduction for rulers, a new structure changed Fuzzy Neural Network is proposed.

针对先验知识不完备和不确定的情况下海量数据造成的冗余和互斥，模糊神经网络结构变得复杂化并不能很快逼近和分类输出对象的情况，提出了一种基于高阶谱完成规则约简的变结构模糊神经网络的模型。

He was her last chance: she was twenty-seven, and spinsterhood was creeping toward her.

他是她最后的机会了。她年已廿七，老处女的命运正在逐渐向她逼近。

Spline function is an important approximation tool in computational geometry,and it is widely used in many engineering fields.

样条函数作为计算几何中表示和逼近的基本工具，在很多工程领域有着重要而广泛的应用。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。