查询词典 couple-electron pair approximation

Now, GW approximation is based on all electron calculation and plane wave pseudopotential method.

目前，GW修正计算主要是基于全电子的LMTO修正和基于平面波赝势法的修正。

Making use of Tight-binding approximation, plotting isoenergic surface about S state electron of simple cubic lattice in first Brillouin zone in MATLAB soft.

利用紧束缚近似方法，在数学软件MATLAB中绘制简立方晶格S态电子在第一布里渊区的等能面。

Making use of Tight-binding approximation,plotting isoenergic sur face about S state electron of simple cubic lattice in first Brillouin zone in M ATLAB soft.

利用紧束缚近似方法，在数学软件MATLAB中绘制简立方晶格 S态电子在第一布里渊区的等能面。

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。

Ionization Potentials and electron affinities of 103 elements are calculated by density functional theory at local density approximation level and the LDA/AN level with further non- local corrections for exchange and correlation included self- consistently.

应用密度泛函理论的 DFT- LDA、 DFT- LDA/NL和改进的 Slater过渡态方法，把元素的电离能和电子亲合能的计算扩展到周期表的 103种元素。

The results suggest that the electron density of the interface between GP zone and the matrix is coherent under the first order approximation, thus particles of GP zone are prone to growing, while β phase is not coherent, which will restrain recrystalization particles of β phase from growing, however β phase is coherent to enhance resistance to deformation of the alloy under high stress.

结果表明：Al-Mg-Si合金GP区与基体界面电子密度在一级近似下连续，GP区粒子易于长大，而β相不连续，抑制了β相再结晶晶粒的长大，但它在高应力下呈现连续，从而提高合金变形抗力。

When the electron interaction, as present in the PPP Hamiltonian, is included even at the level of mean field approximation, the accidental degeneracies in the energy bands of CNTs satisfying the condition, mod(m-n, 3)=0, are removed completely except armchair CNTs.

如果将电子作用力纳入考量，即使只用平均场近似，在奈米碳管能带中满足mod(m-n，3)=0之偶然简并将会消失，唯有扶手型奈米碳管得以豁免。

In this dissertation we extend the application of pair approximation and moment method and build the particular model in background of sex ecology.

综上，本文一方面扩展了偶对近似和矩方法的应用范围，建立了不同背景下的具体模型。

Pair approximation and moment methods have the advantages of overcoming analytical intractability of computer simulation and building a spatially stochastic model.

其优点是可以系统地进行数学分析处理，克服了空间模拟耗时和随机性带来的缺陷。

Meanwhile,the optimal approximation solution for given matrix pair can be derived by this method.

该论文的研究的结果对于信息理论，线性系统理论等有着一定的应用价值。

This paper designs the communication system of radio telescope FAST.

针对500m口径球面射电望远镜FAST分布式控制系统的特点完成了其通信系统的设计。

Political sheep's step-by-step a large number of fossils unearthed in the county soil Ma Ali after rural village in the middle of sallow pelitic siltstone.

步氏和政羊化石大量出土于广河县阿力麻土乡后山村，产于灰黄色泥质粉砂岩中。