Suggested Topics within your search.
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- Physics 1
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341
Resonant Excitation of Terahertz Surface Plasmons in Subwavelength Metal Holes
Published 2007-01-01“…The effects of hole shape, hole dimensions, dielectric function of metals, polarization dependence, and array film thickness on resonant terahertz transmission in metal arrays were investigated by the state-of-the-art terahertz time-domain spectroscopy. …”
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342
Structural Parameters Optimization of Corona Ring of Tethered Balloon-Type VLF Antenna
Published 2021-01-01“…The antenna end of the tethered balloon-type high-power VLF communication system will be exposed to an extremely strong alternating electric field environment when it is in operation. Due to dielectric loss, an abnormal temperature rise may occur at the antenna end, which may lead to an antenna fracture in serious cases. …”
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343
Design of Internal Wire-Based Impedance Matching of Helical Antennas Using an Equivalent Thin-Wire Model
Published 2017-01-01“…To overcome this problem, we formulate an equivalent thin-wire model of the complete helix, including the matching wire (matching network) and the dielectric support. This computationally low-demanding model can be analyzed extremely rapidly, yielding accurate results, which are in excellent agreement with alternative numerical solutions and measurements.…”
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344
Leaky Modes of Waveguides as a Classical Optics Analogy of Quantum Resonances
Published 2015-01-01“…As an immediate application we calculate the leaky modes (resonances) associated with a dielectric homogeneous slab (square well potential) and show that these modes are attenuated as they propagate.…”
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345
Properties of Natural Rubber-Based Composites Containing Fullerene
Published 2012-01-01“…In this study the influence of fullerenes in concentrations from 0.5 to 1.5 phr on both the vulcanization characteristics of the compounds and physicomechanical, dynamic, and dielectric properties and thermal aging resistance of nanocomposites on the basis of natural rubber has been investigated. …”
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346
An Experimental Study for Quantitative Estimation of Rebar Corrosion in Concrete Using Ground Penetrating Radar
Published 2016-01-01“…The corroded rebars were then placed into three different oil emulsion tanks having different dielectric properties similar to concrete. The maximum amplitudes from the corroded bars were recorded. …”
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347
Radiation Pattern Reconfigurable Waveguide Slot Array Antenna Using Liquid Crystal
Published 2018-01-01“…Together with the waveguide slot, the designed complementary electric-field-coupled resonator functions like a switch controlled by the dielectric constant of the LC, which can control the antenna element to radiate or not. …”
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348
Application of a Surface Waveguide in Microwave Drying Units of the Agribusiness Industry
Published 2024-01-01“…The article describes the advantages of applying a vibratory device for exciting a surface wave, using a re-emitting antenna array, and operating a single conductor with a dielectric coating as a surface waveguide. Such advantages make it possible to introduce microwave drying units with the required distribution of electromagnetic field energy along the irradiated material, small dimensions, high drying quality, and low price.…”
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349
Experimental Investigation on Material Transfer Mechanism in WEDM of Pure Titanium (Grade-2)
Published 2013-01-01“…It was observed from the results that a significant material transfer occurred from the dielectric, as well as tool, electrode on the work surface either in free form and/or in compound form. …”
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350
Kinetics of Oxidation of Metochlopramide withChloramine-T in HClO4 Medium
Published 2009-01-01“…There is a negative effect of dielectric constant of the solvent. The addition of the reduction product of CAT has no significant effect on the rate. …”
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351
Microwave Tomography for Brain Imaging: Feasibility Assessment for Stroke Detection
Published 2008-01-01“…The MWT imaging of deep brain tissues presents a significant challenge, as the brain is an object of interest that is located inside a high dielectric contrast shield, comprising the skull and CSF. …”
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352
Design and Modeling of the Photonic Crystal Waveguide Structure for Heat-Assisted Magnetic Recording
Published 2018-01-01“…The structure consists of a 90° bending PC waveguide and a ridge dielectric waveguide taper coupler. Three-dimensional (3D) models of structures are built and simulated in order to determine light coupling and transmission efficiencies. …”
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353
Analysis of Shielding Effectiveness of the Cavity Built with Single-Layer Reinforced Concrete
Published 2022-01-01“…The influence of structure parameters of steel mesh size, the steel diameter, and electromagnetic parameters of concrete dielectric coefficient, conductivity and moisture content on shielding effectiveness of reinforced concrete are analyzed. …”
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354
Kinetics of Oxidation of Some Essential Amino Acids by N-Chlorosaccharin in Aqueous Acetic Acid Medium
Published 2004-01-01“…The effect of changing the dielectric constant of the medium on the rate indicates the reaction to be of dipole-dipole type. …”
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355
Large-scale high purity and brightness structural color generation in layered thin film structures via coupled cavity resonance
Published 2024-10-01“…Moreover, the proposed design method is versatile and compatible with various choices of dielectric and metallic layers. For instance, we demonstrate the production of angle-robust structural colors by utilizing high-index Ta2O5 as the dielectric layer. …”
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356
Scalable Notch Antenna System for Multiport Applications
Published 2016-01-01“…The basic design is built on a square patch with an electrical size of 0.82λ0×0.82λ0 (at 2.4 GHz) on a dielectric substrate. The design consists of four symmetrical and orthogonal triangular notches with circular feeding slots at the corners of the common patch. …”
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357
Synthesis, Structural, Spectroscopic, and Hirshfeld Surface Analysis, and DFT Investigation of Benzaldehyde Semicarbazone
Published 2022-01-01“…In order to determine the electrical characteristics, dielectric investigations were carried out. Tests of Vickers hardness were used to measure mechanical strength. …”
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358
Phenomenological construction of metal photonic topological insulators based on theory of characteristic modes
Published 2025-01-01“…Dielectric photonic crystals are usually used to construct electromagnetic topological insulators, while metal photonic crystals are easier to be manufactured and compatible with microwave circuits. …”
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359
Design of organic crystals with lone pairs to study spin resonance and spin-lattice interactions
Published 2025-01-01“…Abstract Lone pairs are widely prevalent in various types of molecules and have a significant impact on the band structure, carrier transport, and dielectric response, which are the key factors for exploring the underlying mechanism of phenomena in opto-spintronics. …”
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360
Preparation and Optical Properties of Compound Nanopowder Art Ceramics
Published 2022-01-01“…In order to play the role of nanoparticles in optoelectronic or photonic devices, it is necessary to explore the preparation process and performance research of dielectric ceramics. This study uses high-purity aluminate (MgAl2O4) powder for transparent ceramics, doped with yellow nanophosphor as raw materials, through a sintering process in oxygen atmosphere, sintering combined with heat treatment, and isostatic pressing to prepare transparent ceramics. …”
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