矢函数

Vector partial differential operator ; Dyadic Green function ; Heteromophic waveguide ; Cutoff frequency

矢量偏微分算子；并矢格林函数；异形波导；截止频率

Boundary value problems in classical hydrodynamics are usually transformed from the physical plane to velocity plane by hodograph method.

在古典水动力学中，对於二维、稳态、不可压缩、无旋流场且不考虑其他外力影响之平面射流问题，常用速度矢端图法将其由物理平面转换至速度平面，再以复变函数法求得平面射流问题之自由流线参数方程式，但其求解过程甚为繁复。

From the Maxwell equation in EMT sensing subsystem, two kinds of 3D electromagnetic integral solutions are obtained under material field distribution and with Dyadic Green function as integral kernel.

从EMT传感子系统的Maxwell方程出发，得到了两类物场分布情况下的以并矢格林函数为积分核的三维电磁积分解。

Key words: analytical mechanics; event space; variable mass; nonholonomic constraint; principle of Jourdain; Noether′s theorem

考虑N个质点组成的系统，其中每个质点的质量mi(i=1，…，N)是时间、位置、速度的函数， i为第i个质点mi的位矢。

The coupling of linear antennas parallel to the minor axis in a elliptic waveguide are discussed by means of dyadic Green s function and reaction principle.

采用并矢格林函数和反应原理，讨论了椭圆波导中平行于短轴的线天线的互耦合。

When the optical axis is in the plane of incidence,the reflectivity fitting functions of s- and p-polarized light are presented.

通过分析波矢沿任意方向的单轴晶体的折射率，在光轴位于入射面内时，给出了入射光分别为s光和p光的反射率拟合函数。

Concerning the polarization coupling between Rayleigh particles irradiated by various polarized plane light wave, we use self-consistent method and dyadic Green's function, with the near-field condition of kR《1, and neglecting retardation, to derive analytical expressions for the transverse and longitudinal components of optical binding forces.

针对不同偏振态平面光波诱导下瑞利粒子间极化耦合作用，运用自洽场方程和并矢格林函数，在kR《1的近场条件下，忽略延迟效应，分析推导了横向和纵向光学束缚力公式。

In using DGF method, the first thing is to obtain the proper form of certain area. But the DGFs obtained now are all in achiral medium. So people are eager to know DGFs in spectral domain and space domain of chiral medium.

用解析的方法求解电磁场的边值问题主要依靠建立在经典电磁场理论基础上的并矢格林函数方法，应用DGF方法首先要找出适用于相应区域中的DGF形式，而现有的DGF形式都是基于非旋波媒质情形。

The formula for computing the 3-dimensional axially symmetrical steady magnetic field for vectorpotential is derived by the spherical function expansion.

本文用球函数展开法推导出计算轴对称三维稳恒磁场矢势的公式，应用该公式既能计算电流分布区域外部的磁场，又能计算电流分布区域内部的磁场。

Chapter 2 discusses the aperture couple theory which is very useful to resonant systems. The uniqueness theorem of electromagnetic fields in lossless regions and the formulation of equivalant principles are presented.

第二章利用等效原理和并矢格林函数研究了谐振系统常用的耦合方式孔耦合的一般理论和小孔耦合的偶极子模型。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。