Results 11 to 20 of about 446,677 (95)

Analysis and control of resonant cavity flows [PDF]

open access: yes, 2013
Recently, the trend for the internalisation of stores within an aircraft fuselage has led to a renewed interest in the field of cavity aero-acoustics.
Roberts, David
core   +7 more sources

Sector Unit-Cell Methodology for the Design of Sub-6 GHz 5G MIMO Antennas

open access: yesIEEE Access, 2022
A novel methodology based on the sectorization of multiple-port cavities with azimuthal symmetry into sector unit cells is presented to design 5G multiple-input multiple-output (MIMO) sub-6 GHz antennas.
Jaime Molins-Benlliure   +3 more
doaj   +1 more source

Evaporation‐driven octagonal particle deposition on the patterned substrate

open access: yesDroplet, 2022
Understanding noncircular deposition patterns can offer broad applications; however, the phenomena have not been thoroughly studied. We experimentally investigate particle self‐assembly of microspherical polystyrene particle‐laden sessile droplets dried ...
Si X. Lim   +4 more
doaj   +1 more source

Identification of microwave heating system with symmetrical octagonal tube cavity using ARX model

open access: yesIOP Conference Series: Earth and Environmental Science, 2022
Abstract As one of the complex technologies in the heating process, microwave heating system has gained attentions in the recent years. A further development of microwave heating control technology becomes necessary considering its superiorities in less energy consumption, volumetric heating ability and satisfying mechanical ...
D Prastiyanto   +5 more
openaire   +1 more source

Plasmonic sensor for rapid detection of water adulteration in honey and quantitative measurement of lactose concentration in solution

open access: yesResults in Physics, 2023
In this article, a novel surface plasmon polariton-based plasmonic refractive index sensor is proposed and numerically investigated. It consists of a structure of an octagonal cavity resonator inside a square disk along with silver nanodots and two slits
Mohammad Ashraful Haque   +4 more
doaj   +1 more source

Gain Enhancement and Cross-Polarization Suppression of Cavity-Backed Antennas Using a Flared Ground Cavity and Iris

open access: yesSensors, 2023
Herein, we present new design principles for gain enhancement and cross-polarization suppression in dual-polarized cavity-backed antennas and demonstrate the capability in an octagonal cavity-backed open prism antenna (OCROP).
Yanxia Liu   +2 more
doaj   +1 more source

Synthesis, Structure, and Characterization of Thiacalix[4]-2,8-thianthrene

open access: yesMolecules, 2023
Sulfur-containing macrocycles have attracted substantial interest because they exhibit unique characteristics due to their polygonal ring-shaped skeleton.
Masafumi Ueda   +2 more
doaj   +1 more source

A 320 GHz Octagonal Shorted Annular Ring On-Chip Antenna Array

open access: yesIEEE Access, 2020
In this paper, an octagonal shorted annular ring (OSAR) antenna array is presented based on 130-nm SiGe BiCMOS technology without any post-processes. The OSAR antenna consists of annular ring patch, an array of shorted pins and ground which is formed a ...
Hua Zhu   +3 more
doaj   +1 more source

Experimental and Numerical Study of the Earing Defect During Square Deep Drawing Process [PDF]

open access: yesEngineering and Technology Journal, 2018
Deep drawing process is a very complex process which controls a lot of parameters and the associated defects. The aims of this research are to discuss the effect of parameters of the process utilized in square deep drawing process such ; material ...
Kariem Younis, Adil. Jaber
doaj   +1 more source

Cavity QED with Multilevel Atoms [PDF]

open access: yes, 2005
The steady-state transmission spectrum of a cavity with two modes of orthogonal polarization strongly coupled to a single atom with multiple Zeeman states is computed. Effects due to cavity birefringence and atomic ac-Stark shifts are included.
Birnbaum, Kevin Michael
core   +1 more source

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