Suggested Topics within your search.
Suggested Topics within your search.
- Physics 1
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581
Enhancement of Coal Permeability Using Aqueous NaCl with Microwave Irradiation
Published 2022-01-01“…Results showed that the increase of the proportion of solution mass and the ion concentration in the solution improved the overall dielectric properties of coal rock samples. After microwave irradiation, the average reduction rate of water content in coal rock samples increased with the increase of ion concentration in the solution. …”
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582
Tunable MEMS-based meta-absorbers for nondispersive infrared gas sensing applications
Published 2025-01-01“…Nearly perfect absorption of different wavelengths can be obtained by controlling the thickness of the dielectric spacer. More significantly, the proposed meta-absorber exhibits angle-dependent characteristics. …”
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583
Miniaturized Inset-Fed Microstrip Patch Sensor Based on Meander-Line Slot for Water Measurement Applications
Published 2024-12-01“…The inset-fed sensor size is 60×50×1 mm3 and is printed on a low-cost FR-4 dielectric substrate. The meander-line slots resonator is used in the proposed design to produce strong and concentrated electric fields while increasing the energy output by focusing the current in a narrow area. …”
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584
All-Textile Compact Ultra-Wideband Microstrip Antenna with Full Ground Plane for WBAN Applications
Published 2024-01-01“…The use of a single dielectric substrate layer facilitates the integration process. …”
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585
Enhanced aerodynamic performance of NACA4412 airfoil through integrated plasma actuator and Gurney flap flow control
Published 2025-03-01“…The study employs a gurney flap with a fixed width of 2 mm and variable heights from 1% to 3% of the chord length, in conjunction with a dielectric barrier discharge (DBD) plasma actuator positioned at a distance of 2% from the leading edge of the chord. …”
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586
Design of a Dual Band Antenna for Wireless Communications Utilizing the Sierpinski Carpet Fractal
Published 2024-01-01“…The fractal antenna that is suggested is placed on a substrate composed of FR-4 material, which possesses a dielectric constant of 4.4. Additionally, the antenna has dimensions 35 × 30 × 1.6 mm3. …”
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587
Thermal Analysis of Direct Liquid-Immersed Solar Receiver for High Concentrating Photovoltaic System
Published 2015-01-01“…The advantages of triple-junction CPV cells immersed in a circulating dielectric liquid and dish HCPV technology are integrated into a CPV system to improve the system electrical conversion efficiency. …”
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588
Conductive filament formation in the failure of Hf0.5Zr0.5O2 ferroelectric capacitors
Published 2025-01-01“…However, critical challenges exist in understanding the material’s failure mechanisms to design long endurance lifetimes. In this work, dielectric failure due to repeated switching cycles, occurring through oxygen vacancy motion and leading to the formation of a conductive filament, is demonstrated. …”
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589
Multiband Patch Antenna for Femtocell Application
Published 2014-01-01“…The antenna is designed using ElnoS HK light CCL substrate material of relative permittivity of 9.4, dielectric loss-tangent of 0.003 and thickness of 3 mm. …”
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590
Ultra-light antennas via charge programmed deposition additive manufacturing
Published 2025-01-01“…Demonstrating its potential, we present a transmitarray antenna composed of an interconnected, multi-layered array of dielectric/conductive S-ring unit cells, reducing 94% mass of conventional antenna configurations. …”
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591
Development of a Stable TiO2 Nanocomposite Self-Cleaning Coating for Outdoor Applications
Published 2016-01-01“…The influence of the nanofiller concentration in a specific frequency range (40 Hz to 2 MHz) on the dielectric behavior was analyzed as well. It was found that the real relative permittivity (εr′) increases as the nanofiller concentration increases. …”
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592
Cross-talk-free, high extinction ratio, and ultra-compact all‑optical 4 × 2 encoder using graphene-based plasmonic waveguides
Published 2025-01-01“…The basic plasmonic waveguide consists of a silicon (Si) strip and a graphene sheet supported by two dielectric ridges. Surface plasmon polaritons (SPPs) are stimulated in the spatial gap between the graphene sheet and the Si strip. …”
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593
Synthesis, optical linear and non-linear characterization and metal ion sensing application of some novel thieno[2,3-b]thiophene-2,5-dicarbohydrazide Schiff base derivatives
Published 2025-01-01“…The allied absorption, dielectric, and dispersion parameters have been calculated and discussed. …”
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594
Examples of power transformers testing after outages and bad results of the chemical analysis of the oil sample
Published 2023-01-01“…This paper will give examples of the results of electrical measurements (most often insulation resistance and dielectric loss factor of windings, magnetizing currents and ohmic resistance of windings) made after power transformers were out of operation and measurements after bad results of chemical analysis of oil samples.…”
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595
Ultra-compact quintuple-band terahertz metamaterial biosensor for enhanced blood cancer diagnostics.
Published 2025-01-01“…It is constructed using a polyethylene terephthalate (PET) dielectric layer and two aluminum (Al) layers, with the top layer serving as a base for the THz-range resonator. …”
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596
A Novel Linear Sparse Array with Reconfigurable Pixel Antenna Elements
Published 2020-01-01“…Specifically, an RPA with simultaneous polarization and pattern reconstruction capabilities, consisting of the driven patch and the parasitic pixels on the same layer of dielectric substrate, is firstly designed, which can work in several operation modes corresponding to steerable beam directions θ=0°;θxoz=25°, 45°;θyoz=15° with two circular polarizations in X-band. …”
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597
Three‐Way Equal Filtering Power Divider for Modern Communication Systems
Published 2025-01-01“…The implementation is carried out on Rogers RT/Duroid 6010LM substrate with a dielectric constant of 10.7, a thickness of 1.27 mm, and a loss tangent of 0.0023. …”
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598
Simulation and Analysis of the Optimal Electric Field from Modifications to the Winding Design for the Tesla Transformer
Published 2025-01-01“…The winding that has space is dielectric; while there is high voltage in a transformer, it causes flashover voltage between the high-voltage winding and low-voltage winding, which damages the transformer and other devices. …”
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599
Microwave NDT/NDE Through Differential Bayesian Compressive Sensing
Published 2024-01-01“…This article deals with the nondestructive testing and evaluation (NDT/NDE) of dielectric structures through a sparseness-promoting probabilistic microwave imaging (MI) method. …”
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600
A Low-Profile Reflector-Enhanced Drop-Shaped Printed Antenna for Wide-Band Wireless Communications
Published 2017-01-01“…Furthermore, the particular shape of the metal reflector and the adoption of a thin low-permittivity dielectric substrate result in a low distortion of the radiated field and a limited back radiation which makes the antenna suitable for UWB applications as well. …”
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