Results 91 to 100 of about 3,437 (296)

Innovative Processing of Compacted Waste Aluminum Alloy Powders via Controlled Remelting and Solidification

open access: yesAdvanced Engineering Materials, EarlyView.
This study demonstrates an efficient recycling route for out‐of‐spec AlSi10Mg atomized powders through compaction and arc remelting followed by suction casting. By correlating compaction load, cooling rate, and resulting microstructure, we show that intermediate pressures (50–80 kN) and rapid cooling refine dendrites, reduce porosity, and enhance ...
Mila Christy de Oliveira   +4 more
wiley   +1 more source

A New Microstrip Filter Using CRLH Structure and Defected Ground Structure in Antenna Application

open access: yesInternational Journal of Antennas and Propagation, 2014
A new microstrip bandpass filter using composite right/left-handed (CRLH) mushroom structure with interdigital capacitors and defected ground structure (DGS) is proposed.
Xin Cao   +4 more
doaj   +1 more source

A new printed fractal right angled isosceles triangular monopole antenna for ultra-wideband applications

open access: yesEgyptian Informatics Journal, 2017
In this present work, a different right angled isosceles triangular Microstrip patch antenna (RITMA) for ultra wideband (UWB) utilization is designed. The antenna presented is simple and small in structure.
Manisha Gupta, Vinita Mathur
doaj   +1 more source

Study of resonant structures with DGS (Defected Ground Structure)

open access: yes, 2007
El interés en el desarrollo de circuitos en guías de onda coplanar (CPW) y líneas de transmisión con estructuras grabadas en el plano de tierra (DGS) se ha incrementando en los últimos años.
Dania Covarrubias Martínez
core  

STUDI PENGARUH BENTUK DEFECTED GROUND STRUCTURE PADA ANTENA MIKROSTRIP MIMO [PDF]

open access: yes, 2019
Teknologi Multiple Input Multiple Output (MIMO) pada antena memungkinkan tercapainya komunikasi yang sangat efektif dan efisien. Namun terdapat kelemahan pada antena MIMO yaitu dibutuhkan isolation port antar patch yang tinggi dan ukuran yang relative ...
LISKA AMMAI
core  

Microstructural Evolution and Vacancy Defect Formation in Mn–Mo–Ni RPV Steel Under Low Cycle Fatigue: Insights From EBSD and PALS

open access: yesAdvanced Engineering Materials, EarlyView.
Low‐cycle fatigue damage in Mn–Mo–Ni reactor pressure vessel steel is examined using a combined electron backscatter diffraction and positron annihilation lifetime spectroscopy approach. The study correlates texture evolution, dislocation substructure development, and vacancy‐type defect formation across uniform, necked, and fracture regions, providing
Apu Sarkar   +2 more
wiley   +1 more source

Designing Vivaldi antenna with defected ground structure for wireless applications / Muhammad Husaini Zulkifli

open access: yes, 2013
A Vivaldi antenna is fabricated on Rogers Duroid®5870 substrate with Defected Ground Structure on the ground plane. This antenna structure was designed to resonate at 5.28 GHz for Wireless applications.
Zulkifli, Muhammad Husaini
core  

Near‐Field Electrospinning Micro‐Printhead Achieves Precise Control of Nanofiber Deposition

open access: yesAdvanced Engineering Materials, EarlyView.
A micro‐printhead for near‐field electrospinning enables reproducible deposition of polymer nanofibers with diameters below 50 nm. Systematic parameter studies uncover the mechanisms linking operating conditions to fiber morphology, paving the way for precise and low‐cost nanoscale 3D manufacturing.As a high‐resolution, cost‐effective, and rapid ...
Han Xu, Dario Mager, Jan G. Korvink
wiley   +1 more source

Design of CPW-Fed Antenna with Defected Substrate for Wideband Applications

open access: yesJournal of Electrical and Computer Engineering, 2016
A CPW-fed defected substrate microstrip antenna is proposed. The proposed antenna shows wideband applications by choosing suitable defected crown shaped substrate. Defected substrate also reduces the size of an antenna.
Amar Sharma   +3 more
doaj   +1 more source

Novel UWB Microstrip Antenna Structures with Defected Ground Structure

open access: yesIndonesian Journal of Electrical Engineering and Computer Science, 2018
<p>This paper presents the design of new compact printed antennas for Ultra Wide Band applications, fed with a microstrip-line. The proposed designs consist of a patch antenna with defected ground, which are fed by 50Ω microstrip transmission line. The frequency range is 3.1-10.6 GHz which is the Federal Communication Commission (FCC) band of UWB.
S. Elajoumi   +5 more
openaire   +2 more sources

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