DIPED - 99. Direct and Inverse Problems of Electromagnetic and Acoustic Wave Theory. Proceedings of 4th International Seminar/Workshop (IEEE Cat. No.99TH8402)最新文献_第4页

Propagation of surface polaritons in finite superlattice with one shifted layer placed into the quantizing magnetic field 在量子化磁场中放置一个移位层的有限超晶格中表面极化子的传播

DIPED - 99. Direct and Inverse Problems of Electromagnetic and Acoustic Wave Theory. Proceedings of 4th International Seminar/Workshop (IEEE Cat. No.99TH8402)

Pub Date : 1900-01-01 DOI: 10.1109/DIPED.1999.822124

N. Beletskii, J.V. Bludov

The paper deals with the theoretical investigation of surface polaritons (SP) in weakly disordered superlattice (WDSL), formed of the finite number of 2-dimensional electron systems (2DES). The weak disorderedness consists in the fact that one of the inner 2DES was shifted from the position of periodicity on some distance /spl Delta/. It is shown, that under the integer quantum Hall effect (IQHE) conditions all characteristics of SP are represented by the quantized values. The conditions under which the SP phase and group velocities in the finite WDSL can be considerably less than that in the isolated 2DES are defined.

本文从理论上研究了由有限数量的二维电子系统(2DES)构成的弱无序超晶格(WDSL)中的表面极化子(SP)。弱无序性在于内部的一个2DES从周期性位置偏移了一段距离/spl Delta/。结果表明，在整数量子霍尔效应(IQHE)条件下，SP的所有特性都由量子化值表示。定义了有限WDSL中SP相速度和群速度明显小于隔离2DES的条件。

引用次数: 0

The fuzzy control of source terms 源项的模糊控制

DIPED - 99. Direct and Inverse Problems of Electromagnetic and Acoustic Wave Theory. Proceedings of 4th International Seminar/Workshop (IEEE Cat. No.99TH8402)

Pub Date : 1900-01-01 DOI: 10.1109/DIPED.1999.822147

Lun Gao

This paper describes a new algorithm to realize a process which is the recovery of the source terms from information of the state of linear diffusion systems. The algorithm is based on fuzzy control theory with a fuzzy average. An example to control the temperature profile of a bar is presented. Approximate solutions by the algorithm always have smooth properties, even if the desirable profile is not smooth.

本文提出了一种新的算法来实现从线性扩散系统的状态信息中恢复源项的过程。该算法基于模糊平均的模糊控制理论。给出了一个控制棒材温度分布的实例。算法的近似解总是平滑的，即使期望的轮廓不是光滑的。

引用次数: 0

Low-frequency resonator antenna converting linear polarized waves into circular 将线性极化波转换成圆形的低频谐振器天线

DIPED - 99. Direct and Inverse Problems of Electromagnetic and Acoustic Wave Theory. Proceedings of 4th International Seminar/Workshop (IEEE Cat. No.99TH8402)

Pub Date : 1900-01-01 DOI: 10.1109/DIPED.1999.822153

E. Korshunova, A. Sivov, A. Shatrov

Resonant transformers of the spatial and polarization structures of waves are known that employ semitransparent surfaces with anisotropic conductance. We consider the problem of excitation of a dielectric ball with the electric dipole located at its center and directed along the z-axis.

已知波的空间和极化结构的谐振变压器采用具有各向异性电导的半透明表面。我们考虑了介电球中心沿z轴方向有电偶极子的激发问题。

引用次数: 0

Legendre polynomials as finite elements in boundary integral equations for transmission problem with periodic piecewise-linear boundary 具有周期性分段线性边界的传输问题边界积分方程中的勒让德多项式

DIPED - 99. Direct and Inverse Problems of Electromagnetic and Acoustic Wave Theory. Proceedings of 4th International Seminar/Workshop (IEEE Cat. No.99TH8402)

Pub Date : 1900-01-01 DOI: 10.1109/DIPED.1999.822129

S. Sadov, K. McGreer

The Galerkin method with polynomial finite elements of arbitrary degree for boundary integral equations on a broken line is made practical due to a new analytical approach to singular quadratures.

给出了一种新的奇异正交解析方法，使边界积分方程的任意次多项式有限元伽辽金方法变得可行。

引用次数: 2

Convergence of the consecutive approximation method of a solution of the nonlinear problems of the antennas synthesis 天线综合非线性问题的连续逼近解的收敛性

DIPED - 99. Direct and Inverse Problems of Electromagnetic and Acoustic Wave Theory. Proceedings of 4th International Seminar/Workshop (IEEE Cat. No.99TH8402)

Pub Date : 1900-01-01 DOI: 10.1109/DIPED.1999.822132

Y. Topolyuk

The weak convergence of a consecutive approximation method of a solution of the nonlinear equation is proved. The problem of searching of a pseudo-solution of the equations with a free phase is reduced to this equation. The operator of the equation is a superposition of the linear limited operator and nonlinear operator (modulus of a complex function). In this case the linear operator of the problem is completely continuous.

证明了非线性方程解的连续逼近方法的弱收敛性。将具有自由相的方程的伪解的搜索问题简化为该方程。该方程的算子是线性有限算子和非线性算子(复函数的模)的叠加。在这种情况下，问题的线性算子是完全连续的。

引用次数: 3

Computation of the magnetic field strength in a medium with electric and magnetic characteristics locally depending on coordinates 局部依赖坐标的具有电和磁特性的介质中磁场强度的计算

DIPED - 99. Direct and Inverse Problems of Electromagnetic and Acoustic Wave Theory. Proceedings of 4th International Seminar/Workshop (IEEE Cat. No.99TH8402)

Pub Date : 1900-01-01 DOI: 10.1109/DIPED.1999.822136

E. G. Grits'ko, L. Zhuravchak

Using the fundamental solution of the non-stationary diffusion equation and the projection method, we construct the technique of computation of the magnetic field strength in a conductive space with a local inhomogeneous domain where the conductivity and permeability of the medium are continuous functions on the coordinates. The partial case when the conductivity is a smooth function on the coordinates is considered.

利用非平稳扩散方程的基本解和投影法，构造了具有局部非齐次域的导电空间中磁场强度的计算方法，其中介质的电导率和磁导率是坐标上的连续函数。考虑了电导率在坐标上是光滑函数的部分情况。

引用次数: 0