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1001
Plasma-polymerized fluorocarbon Ag–Cu nanocomposites: Nanostructure optimization for superior SERS sensitivity
Published 2025-01-01“…This enhancement relies on the presence of Raman-active molecules on suitable nanostructures, where local surface plasmon resonance creates electromagnetic hotspots. This paper proposes a method to finely control the distribution of Ag and Cu nanoparticles within a plasma–polymer–fluorocarbon (PPFC) thin film by adjusting the sputtering power density to improve SERS performance. …”
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1002
Comparative Hypothesis Testing of Auroral Ionospheric Layer Causing Global Navigation Satellite System Scintillation
Published 2025-01-01“…Abstract As Global Navigation Satellite System electromagnetic waves pass through the ionosphere, especially in auroral zones, ionospheric irregularities cause the waves to scintillate. …”
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1003
Design of an Ultrawideband Circularly Polarized Printed Crossed-Dipole Antenna Based on Genetic Algorithms for S-Band CubeSat Applications
Published 2021-01-01“…This paper presents an ultrawideband circularly polarized two-layer crossed-dipole microstrip antenna for S-band CubeSat applications using genetic algorithms optimization tools included in the 3D electromagnetic simulation software Ansys HFSS. The antenna is constructed on a 10 × 10 cm Cuclad-250 substrate with a back copper flat plane, located at λ/4 at 2.25 GHz operating frequency. …”
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1004
FRR: A Fast Routing Recovery mechanism minimizing network formation time in smart grids
Published 2025-03-01“…The adopted standards allow Wi-SUN FAN networks to take advantage of features such as security, frequency hopping, multi-hop packet routing, and IPv6 addressing, ensuring a wide coverage area and immunity against electromagnetic interference. Despite all the advantages, a shortcoming of Wi-SUN FAN networks is the long network formation time. …”
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1005
Bandwidth Reconfigurable Metamaterial Arrays
Published 2014-01-01“…Metamaterial structures provide innovative ways to manipulate electromagnetic wave responses to realize new applications. …”
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1006
Enhancement of Coal Permeability Using Aqueous NaCl with Microwave Irradiation
Published 2022-01-01“…Both the average surface temperature of the coal rock samples and the average electromagnetic heating power gradually increased; this increases the temperature rise rate and maximum temperature of coal rock samples under the same irradiation time, which is conducive to better rapid accumulation of steam pressure, thereby improving the pore structure more effectively. …”
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1007
Comparative experimental validation of microwave hyperspectral atmospheric soundings in clear-sky conditions
Published 2025-01-01“…Hyperspectral radiance measurements afford a useful means to retrieve these thermodynamic variable fields by harnessing the rich information contained in the electromagnetic wave spectrum of the atmospheric radiation. …”
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1008
Label-free (fluorescence-free) sensing of a single DNA molecule on DNA origami using a plasmon-enhanced WGM sensor
Published 2025-01-01“…By leveraging the strong electromagnetic fields generated within the nanogap of the plasmonic dimer, this platform enables the detection of transient hybridization events between DNA docking strands and freely diffusing complementary sequences. …”
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1009
Microstructure and properties of the Al-0.5 wt.% Fe alloy wire, copper-clad by electrochemical deposition
Published 2025-01-01“…Annotation: This study examines the microstructure, mechanical and electrical properties of the copper-clad wires with a core of Al-0.5Fe alloy, obtained by casting into an electromagnetic crystallizer (EMC). The outer copper layer with a thickness of 90 ± 10 μm was applied via electrochemical deposition. …”
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1010
A Two-Stage Method for Screening Pulse RFI in SAR Raw Data Alternating the Use of Time and Frequency Domains
Published 2025-01-01“…In the increasingly complex electromagnetic environment, the spectrum is becoming more and more crowded. …”
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1011
Bulk Motions in the Black Hole Jet Sheath as a Candidate for the Comptonizing Corona
Published 2025-01-01“…We find that the electromagnetic power flowing through the jet sheath is comparable to the overall accretion power of the black hole. …”
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1012
A multi-band dual-layer encoded microwave absorber with angle selectivity
Published 2025-03-01“…The experimental results showed that the absorber demonstrated selective absorption exceeding 90 % for various angles of incidence and frequencies; specifically, it achieved over 99 % absorption only at 2 GHz at an oblique incidence angle of 60°, and over 90 % absorption only at 18 GHz at an incidence angle of 30°.This microwave absorber, capable of achieving 99 % absorption at specific angles and frequencies, showcases significant value in multiple areas such as electromagnetic compatibility, signal integrity, military applications, and communication fields.…”
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1013
An EIRP Measurement Method of High-Power Microwave Systems Based on Near-Field Testing
Published 2024-01-01“…Theoretical research on this measurement method was conducted, the electromagnetic simulation model was constructed, and a comprehensive analysis through simulation was undertaken. …”
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1014
SERS-based quantitative vertical flow assay using dual Au-Ag SERS nanoprobes
Published 2025-01-01“…For the preparation of SERS nanoprobes, we made use of the gold-silver/core–shell metal nanostructures for the local electromagnetic-field enhancement effect, and the Raman signal could be improved. …”
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1015
Design and fabrication of (Hf0.25Zr0.25Ta0.25Nb0.25)C–SiC ceramics with improved microwave absorbing properties via PDC route
Published 2025-01-01“…This study offers a novel strategy for the fabrication of high-entropy ceramic–SiC biphasic composites with excellent microwave absorbing properties, paving the way for their application in electromagnetic interference shielding and stealth technologies.…”
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1016
Detection of ultrafast electron energization by whistler-mode chorus waves in the magnetosphere of Earth
Published 2025-01-01“…Abstract Electromagnetic whistler-mode chorus waves are a key driver of variations in energetic electron fluxes in the Earth’s magnetosphere through the wave-particle interaction. …”
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1017
Patient's head position-dependent safety analysis of birdcage coil, loop array, and dipole array for applications at 300 MHz in magnetic resonance imaging based on hydrogen nuclei:...
Published 2025-02-01“…This study employs electromagnetic (EM) simulations to quantitatively assesses variations in SAR resulting from different patient's head positions across three types of RF coils (birdcage coil, loop array coil, and dipole array coil), frequently employed as transmission/reception (Tx/Rx) coils in 7 T MRI. …”
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1018
Discretized Impedance-Based Modeling of Converter-Interfaced Energy Resources for State-Variable-Based Real-Time EMT Simulators
Published 2025-01-01“…Design, analysis, and reliable operation of such systems require extensive offline and real-time electromagnetic transient (EMT) simulations. This paper proposes discretized impedance-based modeling (DIBM) of VSCs for efficient time-domain transient analysis in state-variable (SV)-based EMT simulators. …”
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1019
Graphene-Metamaterial Based Tunable Broadband Polarization Insensitive Absorber for Terahertz Antenna Design
Published 2024-01-01“…The advent of graphene has opened new avenues for the design of high-performance metamaterial devices, particularly in the realm of electromagnetic absorption applications. This paper introduces a novel design for a broadband tunable graphene metamaterial absorber (GMMA) utilizing graphene. …”
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1020
Fiber-tip photonic crystal for real-time referenced biosensing in serum
Published 2025-03-01“…Fiber optic sensors have become increasingly well-established due to the many advantages they provide such as immunity to electromagnetic interference, multiplexing capabilities, and remote sensing. …”
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