Results 121 to 130 of about 19,740 (298)

Corrigendum to "A novel quadband ultra miniaturized planar antenna with metallic vias and defected ground structure for portable devices" [Heliyon 7 (3) (March 2021) e06373]. [PDF]

Heliyon, 2021
Moukala Mpele P, Moukanda Mbango F, Konditi DBO, Ndagijimana F.   +3 more
europepmc   +1 more source

Surface Tension Measurement of Ti‐6Al‐4V by Falling Droplet Method in Oxygen‐Free Atmosphere

Advanced Engineering Materials, EarlyView.
In this article, the temperature‐dependent surface tension of free falling, oscillating Ti‐6Al‐4V droplets is investigated in both argon and monosilane doped, oxygen‐free atmosphere. Droplet temperature and oscillation are captured with one single high‐speed camera, and the surface tension is calculated with Rayleigh's formula.
Johannes May, Finn‐Lennard Janthur, Lena Kreie, Michael Müller, Sarah Seffer, Nick Schwarz, Jörg Hermsdorf, Thomas Hassel, Stefan Kaierle, Ludger Overmeyer   +9 more
wiley   +1 more source

Antena SIW dengan Defected Ground Structure pada Frekuensi L-Band

Jurnal Nasional Teknik Elektro dan Teknologi Informasi, 2020
Mia Maria Ulfah, Achmad Munir
doaj   +1 more source

Phase Field Failure Modeling: Brittle‐Ductile Dual‐Phase Microstructures under Compressive Loading

Advanced Engineering Materials, EarlyView.
The approach by Amor and the approach by Miehe and Zhang for asymmetric damage behavior in the phase field method for fracture are compared regarding their fitness for microcrack‐based failure modeling. The comparison is performed for the case of a dual‐phase microstructure with a brittle and a ductile constituent.
Jakob Huber, Jan Torgersen, Ewald Werner
wiley   +1 more source

Affecting the Properties of Copper–Graphene Electroconductive Composite by Severe Plastic Deformation

Advanced Engineering Materials, EarlyView.
Copper‐based composites enhanced with carbon feature convenient mechanical properties and favorable electric conductivity. Processing via deformation and thermomechanical treatments can introduce advantageous microstructures further enhancing their performance. Herein, copper–graphene powder‐based composites are directly consolidated via rotary swaging
Radim Kocich, Lenka Kunčická, Pavel Czernek, Zifan Wang   +3 more
wiley   +1 more source

An ultra-broadband microstrip antenna using a triple dumbbell-shaped defected ground structure

Jurnal Ilmiah SINERGI
Microstrip antennas are widely used in modern communication systems due to their compact size and low profile. However, they typically suffer from narrow bandwidth, limiting their performance in advanced wireless applications.
Puji Haryanto, Dian Widi Astuti, Mudrik Alaydrus, Ahmad Firdausi, Dian Rusdiyanto, Huda A Majid   +5 more
doaj   +1 more source

Design of a SIW Bandpass Filter Using Defected Ground Structure with CSRRs

Active and Passive Electronic Components, 2017
In this paper, a substrate integrated waveguide (SIW) bandpass filter using defected ground structure (DGS) with complementary split ring resonators (CSRRs) is proposed.
Weiping Li, Zongxi Tang, Xin Cao
doaj   +1 more source

Bias‐Free Highly Efficient and Stable Dye‐Sensitized Photoelectrochemical Cells via Cascade Charge Transfer

Advanced Functional Materials, EarlyView.
A buried‐junction DSPEC design is introduced that leverages cascade charge transfer to enhance efficiency, stability, and versatility. This approach facilitates effective charge transfer and minimizes recombination losses, leading to significant improvements.
Jun‐Hyeok Park, Kyounglim Kim, Jinyoung Lee, Sarang Kim, Gwangsu Yoon, So Yeon Yoon, Jeong Kyeong Lee, Ji‐Wook Jang, Tae‐Hyuk Kwon   +8 more
wiley   +1 more source

Design of Electromagnetic Bandgap Structures in Glass Interposers Based on Dispersion Analysis for Signal and Power Integrity Improvement

IEEE Access
This article proposes dispersion analysis for an efficient design of electromagnetic bandgap (EBG) structures in glass interposers to suppress power/ground noise coupling. The proposed method considered design parameters such as patch, through glass via (
Uichan Kim, Atom O. Watanabe, Woo-Su Kim, Youngwoo Kim   +3 more
doaj   +1 more source

Empowering the Democratic Resistance in Syria [PDF]

, 2013
When the peaceful uprising in Syria started in spring 2011 turned into an armed resistance after a few months in the face of savage repression by the Assad regime. Since then, the activists who picked up arms became dependent on support in money and arms
Felix Legrand
core