查询词典 method of approximation

Many methods have been developed in evaluating the QNMs, such as evolving the time dependent wave equation method, integration of the time independent wave equation method, semi-classical method and fraction function method.

许多方法被用来研究黑洞的似正规模：波动方程的时间数值演化方法；波动方程的时间积分方法；半经典近似方法；连分数方法。

Based upon Adomian decomposition method, we have studied Adomian double decomposition method in this paper. The initial term in Adomian decomposition method has been further decomposed, and modified inverse vector method is obtained.

在求解初边值问题Adomian分解法的基础上，研究了求二维偏微分方程边值问题的双重Adomian分解法，对Adomian分解法的初始项作了进一步分解，使逆算符分解法得到了改进。

Acetone-berberine quantitative method is recorded in J.P. X., but this method is complex, difficult and not accurate. In U.V. spectrophotometry determination, the absorbance of berberine will be disturbed by palmatine and other color constituents in these drug extracts. So we modified and used the T.L.C. scanning method and found that it is an accurate, prompt and useful method.

小蘗之定量法有日本药局方记载之Aoetone-Berberine重量法，，唯此法繁杂且误差大，如以分光光度法测定时，除小蘗成分外，尚会受到Palmatine等其他色素之影响，结果并不准确，故本次研完改用薄层层析斑点扫描法，发现其操作迅速、精确度亦高，极为适用。

In chapter 4, a family of two-parameter operators on Abelian group is introduced and its interpolation theorem for approximation is established.

所得的结果包含了R.DeVore定理作为特款，还包含了算子逼近的插补定理，是非线性逼近方面的一项基础性工作。

Keywords: BP neural networks,model approximation degree, acceptance probability, variable stepsize learning algorithm

数值结果表明该算法不仅明显地提高了BP网络的学习收敛速度，而且在一定程度上还能避免陷入局部极小。

BP neural networks ; model approximation degree ; acceptance probability ; variable stepsize learning algorithm

数值结果表明该算法不仅明显地提高了BP网络的学习收敛速度，而且在一定程度上还能避免陷入局部极小。

The convergence of the iterative approximation of the solutions of uniformly accretive operator equation by the modified Ishikawa and Mann iteration processes with error are.

研究实 Banach空间中一致Φ-强增生算子方程解的修改了的具误差的 Ishikawa迭代序列的收敛性问题。

Some theoretical problems related to quantum adiabatic approximation is discussed in this part.

这一部分主要讨论与量子绝热近似有关的一些理论问题。

Quantum adiabatic approximation is widely used in quantum physics.

量子绝热近似在量子物理学中有着广泛的应用。

Adaptive subdivision is performed only in the areas facing to the viewpoint in the pre-process. And in the each adaptive subdivision, we choose the normal angle of the adjacent faces as the control error to detect whether the approximation is sufficient. Sharp edges are automatically tagged according to the given thresholdθand subdivision masks are designed based on different sharp degrees.

在预处理过程中，只选取面向视点的网格作为能够被进一步自适应细分的网格；在自适应细分过程中，用相邻面片的法向夹角作为控制误差来反映细分的逼近程度是否足够；并根据预设的阈值θ自动标记网格中的尖锐特征边，重新设计尖锐特征处的权值掩模。

Don not attempt to do something which you can not to do.

不要企图做那些办不到的事情。

The expression of CTGF and TNF-αweredetected by immunochemistry and the number of Clara Cells was calculated.

光镜下观察肺组织的病理变化，采用免疫组化染色观察肺组织中结缔组织生长因子和肿瘤坏死因子-α的表达和Clara细胞的数量。