查询词典 approximation method

Through establishing the priori estimates for the approximation solutions, we pove the existence of global generalized solution by using the compactness principle and obtain the global property for the generalized solutions in the space L〓. At the last, a new method is used to prove the uniqneness which is a good results, at some extense, under generalize conditions.

运用De Giorgi的最大模估计方法，证明了解的整体上界估计和准衰减型的估计，进一步，在边值和初值具有正的下界条件下，证明了解的一致下界估计，得到了深刻结果。

The variational method and the effective mass approximation are used to calculate the phonon effects on the hydrogenic impurity states in a cylindrical quantum wire with finite deep potential by taking both the couplings of the electron-confined bulk longitudinal optical phonons and the impurity-ion–LO phonons into account.

采用有效质量近似和变分方法，同时考虑电子-约束型体纵光学声子及杂质离子-LO声子耦合，计算了有限深柱形量子线中杂质的极化效应。

A new method which could extract region of interest was introduced. Based on partitions of indiscernibility relations and rough approximation, ROI could be extracted automatically and precisely.

为实现空瓶检测中感兴趣区域ROI的自动精确标定，介绍了一种基于粗糙集不可分辨关系划分及粗近似进行ROI区域提取的新方法。

A fuzzy indiscernibility relation is changed into the indiscernibility relation by using a λ-cut in the rough approximation of decision classes, and an extension of VPRS method is proposed in which probabilistic rules are obtained from fuzzy decision tables.

为了从模糊近似空间中获取用于概率决策的规则，在决策类的粗糙近似中，通过应用λ-截集，将模糊不可分辨关系转化为等价关系，提出一种可从模糊决策表中获取概率规则的扩展变精度粗糙集方法。

In this paper,using the method of,we discuss septic Lacunary interpolation spljne,which is a generalization of,we derive some results on asymptotic representation,approximation degree and saturation

1—[3]讨论了五次缺插值问题，而[4]对它提出了一种分析方法，用这种方法来进一步讨论高次的缺插值问题是成功的，本文就是用这种方法讨论七次的问题，可以得到它的一些渐近式、逼近阶及饱和度的若干结果我们所讨论的七次样条 S_n它满足下列条件

For lensless magnification mode, the subtraction method was presented to eliminate the system total aberration to get the 3D phase information of the phase gating by using Fresnel approximation approach and the convolution approach, respectively.

在无透镜放大数字显微全息系统中，分别利用菲涅耳近似法和卷积方法再现原始物波前，并提出相减法消除系统主要球面误差，获得相位光栅的深度信息。

When calculating sensitivities matrix, instead of computing 3D sensitivities, we attempt to compute 1D sensitivities. Since the sensitivity elements of nonstations are zero, which should be nonnegligible values, we adopt a method of approximation.

在计算灵敏度矩阵时，吸取近似灵敏度矩阵思想，采用一维灵敏度矩阵来代替三维灵敏度矩阵，并对非测点的灵敏度元素提出一种近似方法。

Recently, peter stone et.al present a Sarsa reinforcement learning method to this task, which is value–based with function approximation.

最近Peter stone等用Sarsa强化学习方法解决了该问题，Sarsa是一种基于值的方法。

Following the theoretical analysis, binary and ternary miscibility gap have been systemaiically calculated by the CVM. In particular the critical temperatures were deduced in the CV-pair approximation; A method for deriving energy of atomic pair from the mixing enthalpy or the excess Gibbs energy in the Subregular Solution Model was developed.

通过巨势几何性质的分析，明确了开系中巨势、有效化学势和偏摩尔Gibbs自由能的定量关系，建立了一种以巨势以及有效化学势相等为判据计算两相平衡的新方法，使开系与闭系中任意模型描述的稳态与亚稳态相平衡计算均可以通过求巨势—有效化学势曲线的交叉点来实现，从而避免了相平衡最优化计算方法中的收敛性问题。

Based on density functional theory with the generalized gradient approximation and a full-potential linearized augmented plane wave method, the calculation of the electronic structures and the magnetic properties on [Cuμ-1,3-N3](ClO4), where L is the tridentate Shiff base, has been performed.

基于广义梯度近似密度泛函和全势能线性缀加平面波方法，本文对聚铜络合物[Cuμ1，3-N3](ClO4)（其中L=tridentate Schiff base为三齿席夫基）的态密度和磁矩进行了计算。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。