Results 61 to 70 of about 230,808 (236)
The Circular Polarization Diversity Antennas Achieved by a Fractal Defected Ground Structure
IEEE Access, 2019 This paper proposes the circularly polarized (CP) antennas with a restored radiation pattern for the polarization diversity applications. The proposed CP antennas have dual polarizations, the left-handed circularly polarized (LHCP) antenna is designed ...
Kun Wei, Bocheng Zhu, Mingliang Tao
doaj +1 more source
Deciphering Intricacies in Directional CO2 Conversion From Electrolysis to CO2 Batteries
Advanced Energy Materials, EarlyView.This review will delve into the inherent connections and distinctions of CO2‐directed conversion in ECO2RR and CO2 batteries, in terms of product types, catalyst selection, catalytic mechanisms, and electrochemical performances, while proposing a benchmarking framework for the evaluation of CO2 batteries and innovative CO2 battery configurations for ...
Changfan Xu +5 more
wiley +1 more source
Dynamic analysis of fractal antennas [PDF]
, 2020 SUMMARY. The von Koch beam is one of the most well-known fractal structures, and it turns out to be particularly suitable to design fractal antennas.
Alberto Carpinteri +2 more
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A novel technique and soldering method to improve performance of transparent polymer antennas [PDF]
, 2010 This article is archived here with permission from IEEE - Copyright @ 2010 IEEEA novel technique and a non-thermal soldering method to improve the performance of AgHT-8 transparent polymer antennas are proposed in this paper.
AbuTarboush, HF +7 more
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Electromagnetic Properties of Fractal Antennas [PDF]
, 2018 Finite element method analysis is used to conduct electromagnetic simulations to characterize fractal antennas. This work considers wire (1D) antennas such as the triadic Koch curve, zig zag, and quadratic Koch curve of varying heights, iterations, and ...
Ewing, Jordan Jeffrey
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Asia-Pacific Journal of Chemical Engineering, EarlyView.ABSTRACT Enhancing oil recovery (EOR) in mature reservoirs is hindered by high interfacial tension (IFT) and oil‐wet rock formations, especially under harsh, high‐salinity conditions. This study aims to overcome these limitations by synthesizing a novel carbon nanotube nanocomposite covalently grafted with polyethylenimine and non‐covalently ...
Mohamed Abu Shuheil +8 more
wiley +1 more source
ChemSusChem, Volume 18, Issue 6, March 15, 2025.The use of metallized glass‐based woven‐grids instead of metal foils as current collectors for LIBs leads to a significant reduction in metal usage by over 90 % and weight savings of more than 80 %, resulting in an 11 % increase in specific energy at the cell level. Abstract A novel class of resource‐efficient, woven‐glass‐grid current collectors (CCs)
Yen‐Ming Li +10 more
wiley +1 more source
Studying the fractal patch antennas in the gigahertz and terahertz frequency ranges
Известия высших учебных заведений. Поволжский регион:Технические науки. Background. In recent years, there has been an information boom around fractal antennas designed for wireless communication systems at a wide variety of frequencies.
R.A. Brazhe, E.Yu. Lebedev
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Artificial structures for human‐machine interfaces with closed‐loop interaction
FlexMat, EarlyView.Artificial structures bridge sensing and feedback in closed‐loop human‐machine interfaces by providing geometry‐enabled mechanical and functional programmability. This review maps the role of artificial structures in diverse sensing modalities and feedback strategies, and illustrates their integration into closed‐loop interaction systems, highlighting ...
Taiqi Hu +4 more
wiley +1 more source
Minkowski Island and Crossbar Fractal Microstrip Antennas for Broadband Applications
Applied Sciences, 2018 The paper presents microstrip patch antennas, which are based on the fractal antenna concept, and use planar periodic geometries, providing improved characteristics.
Roman Kubacki +2 more
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