The photonic band structures are calculated by an efficient vector-wave multiple scattering method which can deal accurately with the sharp changes of dielectric functions near the interface.
本文中讨论的光子能带结构是由非常有效的矢量波多重散射方法计算,该方法可以精确地处理介电函数在界面附近的突变。
A study is given to the necessary conditions for construction of normal vector wave functions in homogeneous stratified media.
研究了在均匀分层介质中构成标准矢量波函数的必要条件。
By the method of linear transformation, the solution forms of vector wave equation in spherical coordinates, l, m and n, are transformed to the many other kinds of forms.
利用线性变换的方法,将球坐标下矢量波动方程解的形式l、M和N变换为其他多种形式。
The necessary conditions for construction of normal vector wave functions in inhomogeneous media with graded refractive index are studied.
研究了在渐变折射率介质中构成标准矢量波函数的必要条件。
The tide admittance analysis for the semidiurnal wave of the earth tide by use of the vector pattern of ground tilt observed at seismostations is expounded.
阐述如何利用地震台观测得到的地倾斜矢量图对固体潮半日波进行潮汐导纳分析。
Based on the vector angular spectrum representation of Maxwell's equations, the diffracted plane wave is decomposed into the te and TM terms.
运用麦克斯韦方程组的矢量角谱表述,将平面衍射波分解为TE项和TM项。
A comparison between the wave and ray models shows that the ray model gives an approximation of the transmission loss in an acoustic vector field.
经过与波动理论的比较,说明该模型仅是矢量声场传播损失的简单近似。
The wave equations, modes coupled coefficient and Poynting vector have been got here. The sensing theory of tilted fiber Bragg grating is presented here.
采用耦合模理论对倾斜光纤光栅的传播特性进行分析,并推导出模式传播的波动方程、模式间的耦合系数及坡印亭矢量。
According to the characteristic of the wave field data, a simple algorithm is used to calculate the normal vector at the nodes.
文中针对表示波浪面的数据集的特性,采用了一种简单的节点法矢量算法。
Several parameters related to modulation wave, such as wave vector, wave length and argument phase etc.
详细地讨论了有关调制波的若干参数,如波矢量、波长、幅角、位相等。
In this paper, the normal and abnormal cylindrical vector wave functions are constructed and their conversion relations are found out.
本文定义并构造了柱矢量波函数,导出标准和非标准柱矢量波函数的转换关系式。
The presented phase Angle PWM method is centering attention on motor stator voltage space vector and controls the vector Angle to vary linearly and so reduces higher harmonics in voltage wave.
本文提出的角度PWM方法着眼于电机的定子电压空间矢量,使其矢量角均匀变化,减小电压波形中的高次谐波分量。
The vector characteristics of electromagnetic wave are described with elliptic polarization parameters of the electromagnetic waves.
电磁波的椭圆极化参数描述了电磁波的矢量特性。
The experimental result on wave platform shows that the algorithm can effectively improve the calculation precision of image motion vector.
实验室摇摆台电子稳像实验结果表明,该方法可以有效提高图像运动矢量的计算精度。
The dispersion is related to the wave vector and similar to the dispersion relation of the isotropic dielectric.
其色散关系与波矢方向有关,与各向同性的电介质的色散关系相似。
It is found that under little axial strain, armchair carbon nanotubes are still conductors, but Fermi wave vector, Fermi dot and the effective mass near Fermi face are changed.
在小的轴向拉伸下,扶手椅型碳纳米管仍然是良好的导体,但其费米波矢、费米点及费米面处的有效质量都发生了变化。
We have obtained surface projected band structure and wave vector resolved surface layer densities of states.
分别给出了理想表面和驰豫表面的投影带结构和波矢分辨的层态密度,并进行了较详细的讨论。
The relationship between physically observable quantities and perturbed wave vector is explored on the basis of BBGKY hierarchy equations and the second order perturbation theory.
基于BBGKY方程,采用二阶扰动理论探索了可观物理量与扰动波矢的相互关系。
PWM wave is generated by splitting Zero vector quasi circular locus method.
该系统用零矢量分割的准圆轨迹法生成pwm波形。
This paper studied the characteristics of electromagnetic wave propagation in chiral media, and got the expessions of surface impedance and admittance by use of vector circle method.
本文对电磁波在手征介质中的传播进行了研究,利用矢量圆法对传播中介质所表现出的表面阻抗和导纳进行了推导。
Each cell can scatter radio wave so that total echo received by fuse is sum of each scattering echo vector.
每个单元都会散射电磁波,总的回波是各个散射波的矢量和。
The Green's functions for electric and magnetic vector potentials in a sectoral wave guide and its cavity are derivated by using the separation of variables, Fourier transform and residue theory.
文中介绍了扇面直波导及其腔体中电矢量位和磁矢量位的格林函数,采用分离变量法、傅里叶变换法和留数定理导出了格林函数的具体表达式。
Using the definition and character of vector function, the field is separated to TM wave and TE wave relative tor without complex vector-differential operation.
利用球矢量波函数的定义及性质,提取出场的径向分量,将初级场分解为相对于径向的TE波和TM波,避免了复杂的矢量微分运算。
P-wave displacement is a polar vector, and its direction remains unchanged when we move it from right hand coordinate system to left hand coordinate system(or in the opposite way).
纵波位移是极向量,在坐标系由右手坐标系变成左手坐标系(或相反)时,不改变位移方向;
The algorithm calculated the wave front slope by a reusing core module manner and complemented the wave front reconstruction with the decomposition of matrix-vector multiplication.
该算法基于重复利用核心模块的方式完成波前斜率计算,利用矩阵与向量相乘的可分解性完成波前复原计算。
This paper discussed the basic form of the wave-vector surface and normal mode of nonreciprocal gyrotropic dielectric tensor.
本文讨论了这类非互易旋光张量下的波矢面及简正模的基本形式。
Thus this paper discusses the physical meaning of the 4-wave vector transformation and gives their relation.
因此本文讨论了四维波矢变换的物理意义并给出它们的关系。
Physical idea of the vector method is clear, stable and convergent. The diffraction problem of plane wave with polarization incident upon 2-d sub-wavelength metal gratings can be processed.
这种矢量模式方法物理概念清晰且稳定收敛,可以处理任意偏振态平面波入射到二维亚波长金属光栅中的衍射问题。
Physical idea of the vector method is clear, stable and convergent. The diffraction problem of plane wave with polarization incident upon 2-d sub-wavelength metal gratings can be processed.
这种矢量模式方法物理概念清晰且稳定收敛,可以处理任意偏振态平面波入射到二维亚波长金属光栅中的衍射问题。
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