查询词典 approximation methods in physics

Based on artificial neural network approximation error BP algorithm.

详细说明：基于人工神经网络BP算法的误差逼近。

And it proposes a semiregular mesh geometry coding related to the reconstruction of the mean square error of approximation.

提出了和半规则网格几何编码相关的重建均方误差的近似方法。

This algorithm is simple and easy to realize. Examples showed that the approximation error is small and the approach has good results.

通过具体实例对逼近效果进行演示与分析，结果表明该算法的逼近误差小，效果好。

The valid range and accuracy of the fitted approximation were evaluated by error analysis.

通过误差分析确定了拟合关系式的适用范围，在此范围内，拟合式与精确式的相对误差小于25％。

Actually,there are lots of uncertainties in real systems,such as model approximation, algorithm error etc,which have great impact on dynamic stabilities.

实际上，由于模型的近似表示和算法上的近似处理等，电力系统中还存在着大量的不确定性。

Based on the error estimates of moving least-square approximation, the error estimates for the finite point method are obtained.

基于移动最小二乘法的误差公式，本文讨论了有限点法的误差估计。

When used in signal expansion, this model can give a relative constant error of approximation in a larger frequency band.

实现了采用此模型的匹配算法，并且通过实验对比了梯度法、相位法和新算法的性能

The numerical results also show that the Boussinesq approximation will bring large error for big wall temperature difference.

计算结果也表明，在所计算的问题中，如果采用Boussinesq假设将使计算结果误差比较大。

Furthermore, the adaptive compensation term of the optimal approximation error is introduced to minimize the effects of modeling error .

进一步，通过引入最优逼近误差的自适应补偿项来消除建模误差的影响。

It can be proved mathematically that the associated approximation error in the proposed approach is of details omitted due to lack of space

它算术地可能被在被计画的方式中的联合近似值错误是细节省略预定空间缺乏

The role of the environment is very important.

的作用，环境是非常重要的。

At that time, the High Court of England and Wales Court of Queen's Bench president of William Murray, Lord Mansfield in June 22, 1772 ruling:"No matter then there is the inconvenience, but there must be a decision, I can not say that this case under the law in England are permitted or authorized; are so black should be released."

当时的英格兰及威尔士高等法院王座法庭院长William Murray， Lord Mansfield于1772年6月22日宣判：「无论有那麽不便，但总要有个决定，我不能说这件案在英格兰法律之下是准许或认可；所以黑人是应该被释放。