Results 251 to 260 of about 140,152 (290)

Scattering from a Rectangular Pit in Impedance Screen

2006 International Conference on Mathematical Methods in Electromagnetic Theory, 2006
Plane-wave scattering from an impedance rectangular pit by means of variational method is investigated. The problem is reduced to Fredholm's integral equations with respect to finite functions. These functions are linear combinations of the tangential components of electrical and magnetic fields on the pit aperture.
Yu.A. Baranchugov, S.A. Komarov, P.M. Zatsepin   +2 more
openaire   +1 more source

Two screens with rectangular holes, as Fabry-Perot resonator

2016 9th International Kharkiv Symposium on Physics and Engineering of Microwaves, Millimeter and Submillimeter Waves (MSMW), 2016
Studied electrodynamics properties of the Fabry-Perot resonator formed by two parallel ideally conducting screens with finite thickness having rectangular holes. Shown availability of a strong localization of the electromagnetic field in the volume of the resonator at a fixed wavelength, which is prohibitive for segments of rectangular waveguides ...
A. V. Gribovsky, I. K. Kuz'michev
openaire   +1 more source

Scalar Diffraction by Rectangular Apertures in a Thick Screen

Journal of Modern Optics, 1995
Abstract The problem of diffraction by apertures in a thin screen lends itself to a relatively simple theoretical treatment and for this reason thick screens have not been given the same attention. This paper presents a rigorous study of the case with two rectangular apertures in a thick screen.
openaire   +1 more source

Diffraction of a dipole field by a rectangular screen

IEEE MTT/ED/AP West Ukraine Chapter DIPED - 97. Direct and Inverse Problems of Electromagnetic and Acoustic Theory (IEEE Cat. No.97TH8343), 2002
The author uses the uniform geometrical theory of diffraction to derive an asymptotic solution of the three-dimensional diffraction problem of an arbitrarily oriented electric dipole field by an ideally conducting rectangular screen. The amplitude directive patterns are calculated and analysed for the orthogonal field components of the investigated ...
openaire   +1 more source

Total analysis of radiation characteristics of electric dipole with rectangular screen

4th International Conference on Antenna Theory and Techniques (Cat. No.03EX699), 2004
On the basis of the uniform geometric diffraction theory method, an asymptotic solution is obtained for the 3D radiation problem of an arbitrarily oriented electric dipole placed near an infinitely thin perfectly conducting rectangular screen. The radiation patterns and the back-to-front ratio, the radiation resistance and the directive gains of the ...
Gorobets, Nikolay N., Yeliseyeva, Nadezhda P.   +1 more
openaire   +2 more sources

Mitigation of liquid sloshing in a rectangular tank due to slotted porous screen

Proceedings of the Institution of Mechanical Engineers, Part M: Journal of Engineering for the Maritime Environment, 2020
Liquid sloshing inside a tank with a slotted porous screen at the center is studied based on numerical and experimental methods. Slotted screens with three different porosities (0.0964, 0.1968 and 0.3022) for two submergence depths of 1 and 2 cm have been considered.
Sunny Kumar Poguluri, Il-Hyoung Cho
openaire   +1 more source

A Galerkin method for the numerical analysis of diffraction by a rectangular screen

The Journal of the Acoustical Society of America, 1999
A novel numerical analysis of acoustic diffraction by a rectangular screen is described. The boundary integral model of the system is solved by a Galerkin method using as a basis the scaling functions of discrete wavelet theory. The use of scaling functions enables the quadruple integrals in the Galerkin method to be analytically reduced to double ...
openaire   +1 more source

Evaluating the Nakajima et al. model for rectangular-aperture screens

Minerals Engineering, 2002
Abstract Nakajima et al. [Trans. Inst. Mining Metall. 87 (1978) C194] developed a method to measure the shape distribution of particles in terms of their size and thickness. This method was later extended to include models for square, rectangular, and circular aperture screens.
Dehghani, A, Monhemius, AJ, Gochin, RJ
openaire   +2 more sources

Plane wave diffraction by a large rectangular aperture in a thick conducting screen

2017 International Conference on Electromagnetics in Advanced Applications (ICEAA), 2017
exaly   +2 more sources

Acoustic scattering from a rectangular aperture in a thick hard screen

The Journal of the Acoustical Society of America, 1997
Acoustic scattering from a rectangular aperture in a thick hard screen is examined. The Fourier transform is used to represent the scattered wave in the spectral domain and the boundary conditions are enforced to represent a solution in closed form.
Park, HH, Eom, HJ Eom, Hyo Joon
openaire   +1 more source