逼近

This thesis research is to develop a new method named "equivalent capacitance approximation" for studying the equivalent circuitry and system power of operating organic light-emitting devices.

中文摘要本论文研究是使用新发展的等效电容逼近法来探讨有机半导体发光元件的等效电路阻抗及负载功率的量化。

An approaching method to evaluate profile error of free curve.

逐次逼近法评定自由曲线的轮廓度误差。

However, the method based on behavior only uses trial and error without the exact model of the environment.

基于行为的控制方法采用累次逼近的方法，不需要环境的精确模型，因此系统的稳定性较好。

And some new approaches based on minimum upper bound of error probability for feature selection and clustering are proposed.

提出了基于Chernoff上界、优化Chernoff上界和Bayes上界逼近三种最小错误概率上界的精确计算方法。

The expressions of polynomial and neural network are used to approximate angular error, it is demonstrated that the variance error by using neural network is smaller, which raises a higher request on the performance of the computer.

本文研究了误差模型的存贮方式问题，对于误差拟合采用了多项式法和神经网络方法，神经网络法的逼近程度高，但对计算机的性能要求也高。

The meshless analysis of the plastic forming processes is realized with the hypothesis of the rigid-plastic material,the velocity field simulated by the moving least square method and the essential boundary condition employed by the transformation method.

将无网格方法引入金属塑性成形过程分析，基于刚塑性材料假设，采用移动最小二乘法对速度场进行逼近，利用变换法施加本质边界条件，实现了金属塑性成形过程的无网格方法模拟。

Its freedom with it, evenhanded, balance, good-tempered, independent, participate in approach true, so, it is more authentic than news, so, it can affect news.

它以它的自由、公允、平衡、宽容、独立、参与逼近真实，所以，它比新闻更可信，所以，它能影响新闻。

Thirdly, on the base of the existent error estimate of elliptical Galerkin projection operator, obtain semi-discrete and complete-discrete error estimates betwent EFG solution and exact solution of parabolic partial differential equation. Semi-discrete error estimate show that the rank of r is accordance with the approximation rank of subspace S_h. Complete-discrete error estimates show that it not only have relation with radius r of domain of influence, but also have relation with the step length of time variable and the way of discrete.Lastly, give typical examples and draw up procedures of MATLAB.

再次，在"椭圆Galerkin投影"算子的误差估计的基础上，对用EFG法解抛物型偏微分方程的EFG解与精确解之间作了半离散和全离散的误差估计，半离散的误差估计表明所给出的误差界限关于r的阶是与子空间S_h的逼近阶相一致的，全离散的误差估计表明所产生的误差不但与影响域半径r有关，而且与离散时间变量的步长τ及其离散方式有关。

The decoding efficiency can be raised approaching to the performance of register exchange algorithm as constraint length increases.

改良后的解码效率随著强制长度的增加可以逼近暂存器交换法的解码效率。

In addition, when the nonlinearities have the properties of mixed-monotonicity, the existence of a positive solution for difference equations is ob-tainded by using fixed point theorem in a cone or fixed point theorem of conic expansion and compression.

在最后一部分讨论了带有特征值的非线性二阶差分方程正解存在性问题，利用锥压缩与拉伸不动点定理及逼近性理论，在一定的假设条件下，得到了差分方程正解存在性。

We have no common name for a mime of Sophron or Xenarchus and a Socratic Conversation; and we should still be without one even if the imitation in the two instances were in trimeters or elegiacs or some other kind of verse--though it is the way with people to tack on 'poet' to the name of a metre, and talk of elegiac-poets and epic-poets, thinking that they call them poets not by reason of the imitative nature of their work, but indiscriminately by reason of the metre they write in.

索夫农 、森那库斯和苏格拉底式的对话采用的模仿没有一个公共的名称；三音步诗、挽歌体或其他类型的诗的模仿也没有——人们把&诗人&这一名词和格律名称结合到一起，称之为挽歌体诗人或者史诗诗人，他们被称为诗人，似乎只是因为遵守格律写作，而非他们作品的模仿本质。

The relationship between communicative competence and grammar teaching should be that of the ends and the means.

交际能力和语法的关系应该是目标与途径的关系。