查询词典 interior approximation

Technical parameters and characters of sampling system determine that seismic wave amplitude recorded by seismograph is approximate relative amplitude. Using these data necessarily leads to serious distortion of inverse parameters. So using Born approximation can only obtain the location of interface even if the earth medium is little disturbance.

采集系统特性和技术指标决定了所记录的地震波振幅值为近似的相对振幅，用这样的相对振幅作为地震波参数反演的振幅真值依据，必然导致反演参数值的严重失真。

Three kinds of mass attenuation coefficient have been used, which are the monoenergetic MAC at the mean energy of the MC simulated spectrum, the effective MAC of the Born approximation formula spectrum and the effective MAC of the MC simulated spectrum.

在密度提取中使用了3种不同的吸收系数－MC谱光子平均能量对应的单能质量吸收系数、波恩近似公式谱有效质量吸收系数和MC谱有效质量吸收系数。

The inelastic scattering angular distributions of discrete levels and double differential cross sections were calculated and analyzed by using the distorted wave Born approximation theory ,the unified Hauser-Feshbach model and the exciton model.

应用得到的光学模型势参量，根据光学模型、统一的Hauser-Feshbach和激子模型理论以及扭曲波玻恩近似理论，系统计算和分析了中子与58，60Ni反应的非弹散射角分布和双微分截面，理论结果与实验很好地一致。

Through comparing the Ar (e,3e) double ionization experimental results at low collision energy with the theoretical calculation based on the first Born approximation which include the first order mechanisms SO and TS1, the symmetry breaking about the direction of the momentum transfer shows that the non-first order effects (such as two-step 2 mechanism) play an important role.

通过比较Ar在低碰撞能量下的(e ，3e)双电离实验结果和基于包含一次作用机制SO和TS1的一阶波恩近似的理论计算结果，表明在动量转移方向上对称性的破坏显示非一次效应(例如二型两步作用机制)起非常重要的作用。

Due to the restriction of computational complication and precision,WRM boundary collocation method can only be used to simulate temperature fields of single-particle model,as for the case of some more complicated particle geometry shape it is very hard to obtain sufficient approximation solutions.Thus,BEM is adopted to analyze the thermal conduction problem of composites with particle of arbitrary geometry.

由于受计算复杂程度和计算精度的限制，采用加权残值法只能分析单夹杂问题，且对于更复杂的夹杂形状很难得到良好的近似解，因此接下来采用边界元方法分析了具有任意形状夹杂复合材料的温度场问题。

The boundary of interval Ball curves of degree n is discussed and two algorithms for the degree reduction of interval Ball curves are given by means of linear programming and best approximation respectively.

讨论了n次区间Ball曲线的边界的构成；同时通过讨论区间多项式的降阶，利用线性规划法及最佳一致逼近法，给出了区间Ball曲线的的降阶算法。

In the bounded linear operator approximation theory of Hilbert Space,the isolate point of operator essential spectrum is always a problem. In this paper,a general method to treat this problem is given.

孙辉在Hilbert空间线性算子逼近论中，算子本质谱的孤立点通常是处理一些问题的主要障碍之一，本文给出处理算子本质谱的孤立点的一般方法。

This paper investigates the problem of the best weighted simultaneous approximation to totally bounded sequence s from a set G of generalized polynomials with restricted coefficients in complex normed linear spaces X.

在复赋范线性空间X中考察了具限制系数的广义多项式集G对全有界序列的加权同时逼近问题。

When the harmonic approximation is breakdown,the Morse potential is taken as the free energy surface to study the anharmonic effects of solvent mode and vibrational mode.

在谐振子近似失效的情况下，我们考虑了势能面为Morse势时，溶剂化方向和分子内振动方向的非谐性对电子转移速率的影响。

We investigate the eigen-subspace approximation space-time adaptive processing method of clutter suppression based on the generalized sidelobe canceler .

基于广义旁瓣相消结构，我们研究一种特征子空间近似空时自适应处理杂波抑制方法。

"Second Life is remarkably easy to work with, and is very popular,"

"第二次生命是显着容易的工作，并且很受欢迎，"

For example, we usually assume that materials are homogeneous and isotropic and free of internal defects or flaws.

为了得到适合有限元分析的模型，我们必须经过如图2所示的简化步骤。