平面波

一种特殊类型的、和线性弹性理论中的平面波解有点相像的非稳态运动可以建立起来。

A special type of unsteady motions which bear a resemblance to plane wave solutions of the linear theory of elasticity can be constructed .

在全电子水平上，基于广义梯度近似（GGA）的密度泛函理论和全势能线性缀加平面波方法（FLAPW）计算了石墨的晶体参数和弹性波速；

Based on the generalized gradient approximation ( GGA ) of density functional theory ( DFT ) and the full-potential linearized augmented plane wave ( FLAPW ) at the level including all electrons , the lattice parameters of graphite are calculated and optimized .

进而导出了当界面沿任意方向运动时K与ω边界条件，并分析了平面波在运动界面上的运动学特性。

Some properties of kinematics of the plane wave on the interface are analysed .

二维Offset平面波有限差分法叠前时间偏移

Finite-difference pre-stack time migration of 2D offset plane wave

本文研究平面波倾斜入射在小F数毫米波焦面阵成像系统上衍射斑像差减小即视场扩大问题。

Expanding of Field-of-view for small F-number millimeter wave focal plane imaging is analyzed in this paper .

TM平面波照射下无限大导电劈表面的非均匀电流

Nonuniform currents on a conducting wedge illuminated by a TM plane wave

将平面波展开法用于二维光子晶体的数值模拟和分析设计，用Matlab软件完成了计算程序。

The simulations and analysis of two-dimensional photonic crystals are performed with PWE method , which is programmed in MATLAB .

CT积分反变换是平面波的合成，把时间慢度域中的数据反变换到原来的时空域中去。

CT integral inverse transform means composition of plane waves , in other words , time-slowness domain data are converted into time-space domain data .

正确的点源记录数据平面波分解（τ-p变换）的数值计算过程包括Fourier变换和Hallkel变换。

Numerical computation procedure for decomposing the plane waves in point source seismic records consists of Fourier transform and Hankel transform .

应用四个相对于z轴对称的平面波相干涉，形成具有规则分布的涡旋列。

Regular optical vortex sequences are generated by interferences of four plane waves which are symmetrical to the z axis .

平面波反射系数与AVO技术

Reflection coefficient of planar wave and AVO technique

用基于密度泛函理论的平面波赝势方法计算了ZnO和Sc掺杂ZnO的电子能带结构。

The electronic structures of ZnO and Sc doped ZnO were calculated by using the plane-wave soft-pseudopotential method based on density functional theory .

应用平面波法得到了Bragg光纤中光子能带结构；应用全矢量模型分析了高折射率芯Bragg光纤中的模式。

The photonic band gaps and modes of high-index core Bragg fibers were investigated by superlattice model accompany with plane wave method .

球面波照明时的Talbot成像中的类平面波成像

The images of similar plane wave among Talbot images of spherical wave illumination

采用线性变换方法可以简单地处理平面波展开方法中ε-1（r）的Fourier变换系数，使得相应的带隙计算变得简单有效。

One can see that it is easier to calculate the Fourier transforms of ε - 1 ( r ) by the plane wave expansion method using linear operations .

当角频率为ω的平面波垂直入射到等离子体鞘层时，导出振幅反射系数R及振幅透射看数T的解析表达式。

For plane electromagnetic wave with angular frequency ω incident normally upon the surface of this layer , the expressions of the amplitude-reflection coefficient R and amplitude-transmission coefficient T are derived .

用平面波展开法对光子晶体光纤中电磁场的Maxwell方程组进行了求解。

The Maxwell equations for the propagation of electromagnetic waves in photonic crystal fibers are solved with plane wave method .

TLM方法在电磁散射问题应用中的一种新的平面波照射模型

A New Plane Wave Model for the TLM Method in Simulation of EM Scattering

本文应用平面波法和光子晶体光纤（PCF）的全矢量超格子叠加模型，分析了光子晶体光纤的模式及二次模截止特性。

Plane wave method and a full vector model based on supercell lattice method are applied for modeling photonic crystal fibers .

通过运用平面波展开方法以及有限差分时域（FDTD）方法进行分析，可以明显地发现，在低频和高频区域增大了光子晶体的光子禁带。

By using the plane wave expansion and finite-different time-domain ( FDTD ) methods , we can find a larger absolute band gap in the low and high frequency .

用Visualc＋＋6.0编程，实现了任意设计衍射屏，以及对可见光范围内任意单色点光源或平面波经过衍射屏后的衍射和干射现象进行仿真。

Using Visual C ++ 6.0 , a program is developed to design diffraction screen at random , and to simulate the pattern on receive screen when using point light or plane light source under any wavelength within the range of visible light .

但当前研究工作中理论计算对实验制备的指导作用明显不够，因此对二维光子晶体带隙的各种计算方法，如平面波展开法、FDTD法、多极法等进行了评述。

In view of this , based on reviewing several calculation methods of two-dimensional photonic crystal band gap such as plane wave expansion method , FDTD method , multi-pole method .

尽管本文不能完全确定出板内的二阶平面波，但文中求得的固体板内伴随SH型板波传播所发生的二阶积累波，仍是具有实际意义的。

Although second-order plane-waves can not be entirely fixed in the present analysis , the cumulative waves accompanying SH type plate waves are of substantial significance in practical application .

详细推导了平面波模型在干涉SAR高程重建中引入的相位误差和高程误差，引入高程波动、相对高程波动和绝对高程波动等特性对平面波模型的适用性进行评定。

The height reconstruction error introduced by wave plane model in InSAR height reconstruction is derived . On the basis of height fluctuation , relative height fluctuation and absolute height fluctuation , quantitative error analyses are given .

以平面波经圆孔后的Fraunhofer衍射图样计算为例，说明了在衍射图的计算中，计算步长与计算结果密切相关。

Calculation step is closely related to the course of calculation of diffraction pattern examined by calculating the Fraunhofer diffraction pattern of circular hole .

最后本文还对接触斑点和200mm直线度与平面波动量的关系进行了探讨。

It also inquires into the relationship between the contact spot and 200 mm straight line wave and plane wave quantity .

在层晶模型近似下，采用薄膜全电子线性缀加平面波（LAPW）方法研究了表面合金Cu（001）c（2×2）-Pd的原子结构。

By layered crystal model approximation , all-electron linear augmented plane wave film method is employed to investigate the atomic structure of surface alloy Cu ( 001 ) c ( 2 × 2 ) - Pd .

为了提高平面波分解的运算速度，本文借用零阶Bessel函数近似形式提出了一种快速的近似算法，并进行了误差分析。

With the use of ap - proximate zero order Bessel 's function , we developed a fast approximate method to speed up the decomposition of plane wave , with its error analysed .

运用密度泛函平面波赝势方法（PWP）和广义梯度近似（GGA），对替代式掺杂钒（V）的闪锌矿（ZnS）的超晶胞电子结构进行了计算。

The optical properties and electrical structure of V in ZnS supercell have been computed by means of plane wave pseudo-potential method ( PWP ) with generalized gradient approximation ( GGA ) .

基于平面波展开法，理论分析了晶格结构、填充率、介电常数比等因素对fcc，diamond，woodpile三种三维光子晶体典型结构完全禁带的影响。

Based on plane wave expansion method , the influence of factors such as lattice structure , dielectric constant ratio and filling ratio on three-dimensional photonic crystals with fcc , diamond and woodpile structures is studied .