Results 61 to 70 of about 20,529 (185)

Digital simulation of electromagnetic wave diffraction by a rectangular groove in a conducting screen

open access: yesAIP Conference Proceedings
When optimizing the directivity and energy characteristics of the antennas with flat reflectors and the leaky -wave antennas, high-speed computational algorithms are required for a reliable analysis of the diffraction of electromagnetic waves on a conducting screen, accounting for the inhomogeneities with the dimensions commensurate with the wavelength.
Ostankov, Aleksandr   +4 more
openaire   +3 more sources

Electromagnetic Wave Oblique Incidence on a Planar Double-Element Finite-Depth Screen with Rectangular Holes

open access: yes, 2010
Установлено, что частотная зависимость модуля коэффициента отражения электромагнитной волны от поверхности экрана при наклонном падении подобна той, что наблюдается при нормальном падении.
Грибовский, А.В.
core   +1 more source

Numerical Investigation of the Effect of Bar Design on the Retention Efficiency of Wastewater Bar Screens

open access: yesEng
Mechanical bar screens serve as the initial treatment stage used to catch insoluble and coarse debris from wastewater flow. They are essential equipment that ensures the protection and efficient operation of downstream facilities.
Loubna En-Nabety, El Mostapha Boudi
doaj   +1 more source

H-plane radiation patterns of a dipole antenna mounted above a finite rectangular ground screen

open access: yes, 1971
A simple, accurate method is presented for calculating the H-plane radiation pattern of a dipole antenna mounted parallel to a finite rectangular ground screen.
Van Koughnett, A. L., Wong, J. Y.
core   +1 more source

Investigation of Sand Trap and Bar Screen Mechanisms on Urban Drains (Case Study: Shahjalal Upashahar, Sylhet, Bangladesh) [PDF]

open access: yesWater Harvesting Research
Improper maintenance, inadequate drainage system design, and increasing non-porous surfaces due to urbanization result in waterlogging in urban areas. Shahjalal Upashahar is a prominent urban area in Sylhet city which faces waterlogging conditions due to
Ashutus Singha   +3 more
doaj   +1 more source

Finite Element Least Square Technique for Newtonian Fluid Flow through a Semicircular Cylinder of Recirculating Region via COMSOL Multiphysics

open access: yesJournal of Mathematics, 2020
This article aims to study Newtonian fluid flow modeling and simulation through a rectangular channel embedded in a semicircular cylinder with the range of Reynolds number from 100 to 1500.
Ilyas Khan   +6 more
doaj   +1 more source

Mahogany Chippendale Fire Screen

open access: yes, 2010
FurnishingsMahogany fire screen, rectangular screen with green/cream woven textile insert, floral motif inside rectangular cartouche on Chinese fretwork patterned ground; on turned pole with tripod base, on cabriole legs with snake feet.

core  

ANOMALOUS TRANSMISSION OF A GAUSSIAN WAVE BEAM THROUGH EXORBITANT RECTANGULAR HOLES IN A FLAT SCREEN OF FINITE THICKNESS SUPPORTING A TRAPPED-MODE

open access: yesRadio Physics and Radio Astronomy, 2014
An anomalous transmission mode and a trapped-mode are considered for scattering of a three-dimensional Gaussian wave beam on a two-dimensional two-element periodic semi-transparent array of rectangular wave guides segments.
A. V. Gribovsky, O. A. Yeliseyev
doaj   +1 more source

Scattered acoustic field above a grating of parallel rectangular cavities

open access: yes, 2013
International audienceThe aim of this research project was to predict the sound pressure above a wall facing composed of N parallel rectangular cavities.
Khanfir, Adel   +4 more
core   +1 more source

Design and Modelling of Microwave Active Screen Using a Combination of the Rectangular and Periodic Waveguides Modes

open access: yes, 2009
International audienceA rigorous full wave technique based on the transverse wave concept iterative procedure (WCIP) is used to design and model a microwave active Screen.
Gharbi, A.   +4 more
core  

Home - About - Disclaimer - Privacy