Showing 581 - 600 results of 1,156 for search '"electromagnetism"', query time: 0.05s Refine Results
  1. 581

    Magnetic field strength gradiometer by R. A. Akhmedzhanov, A. I. Cheredov, A. V. Shchelkanov

    Published 2021-09-01
    “…Most methods of measuring magnetic field parameters are based on force (energy) interaction of magnetic field with macro- or microscopic currents and electromagnetic induction. The paper considers the possibility of constructing a magnetic field strength gradient meter based on the absolute helical instability of electron-hole plasma of a semiconductor sample. …”
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  2. 582

    CHOOSING OF OPERATING FREQUENCY OF EDDY CURRENT THICKNESS METER WITH SUPERIMPOSED TRANSDUCER by A. V. Chernyshev

    Published 2015-03-01
    “…It is shown that when using eddy current thickness meter with superimposed transducer the maximal thickness of the conductive sheets or conductive surface layers of a two-layer wares, which may be controlled with selected frequency of excitation current of the transducer, can be estimated based on the magnitude of the penetration depth of a plane electromagnetic wave in the half-space, the specific electrical conductivity and the relative magnetic permeability of which is equal to the values of these parameters in a controlled surface layer or sheet of two-layer ware.…”
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  3. 583

    EBG Size Reduction for Low Permittivity Substrates by Gonzalo Expósito-Domínguez, José Manuel Fernández-González, Pablo Padilla, Manuel Sierra-Castañer

    Published 2012-01-01
    “…Double layer and edge-location via techniques are combined for electromagnetic band gap (EBG) size reduction. The study of the required number of elements and their dimensions is carried out in order to suppress the surface wave propagation modes and consequently to reduce the mutual coupling between radiating elements in low-permittivity substrates. …”
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  4. 584

    TECHNIQUE OF ESTIMATE OF CONDUCTIVITY OF SMALL COAL SAMPLES BY THEIR INFLUENCE ON SIGNAL OF SPIN-LABEL IN RESONATOR OF ESR SPECTROMETER by N. A. Poklonski, S. A. Vyrko, O. N. Poklonskaya, N. I. Gorbachuk, A. I. Siahlo

    Published 2015-03-01
    “…The results of study at room temperature in the air of influences of the nonresonant absorption of microwave electromagnetic radiation by coal samples of different masses in the center of H102-resonator on the electron spin resonance (ESR) signal of a standard sample (spin label) of a ruby crystal, permanently mounted on the side wall of the resonator, are presented. …”
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  5. 585

    Klein-Gordon Oscillator in the Presence of External Fields in a Cosmic Space-Time with a Space-Like Dislocation and Aharonov-Bohm Effect by Faizuddin Ahmed

    Published 2020-01-01
    “…In this paper, we study interactions of a scalar particle with electromagnetic potential in the background space-time generated by a cosmic string with a space-like dislocation. …”
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  6. 586

    All-dielectric nonlinear metasurface: from visible to vacuum ultraviolet by Zhihui Wang, Rong Lin, Jin Yao, Din Ping Tsai

    Published 2025-01-01
    “…This review introduces the theoretical framework: resonant modes enhance the local electromagnetic field and promote nonlinear polarization. …”
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  7. 587

    Microscale insight into the proton concentration during electrolytic reaction via an optical microfiber: potential for microcurrent monitoring by a dielectric probe by Yunyun Huang, Jiaxuan Liang, Haotian Wu, Pengwei Chen, Aoxiang Xiao, Bai-Ou Guan

    Published 2025-02-01
    “…The current measurement techniques rely on electromagnetic materials which inevitably introduce interference to the system under examination. …”
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  8. 588

    Time-Frequency Characteristics and the Influence Mechanism of the EMR from Coal with Different Joint Angles by Hongwei Mu, Dazhao Song, Shan Yin, Xueqiu He, Liming Qiu, Dongfang Su, Yang Liu

    Published 2021-01-01
    “…It is vital to understand the electromagnetic radiation’s time-frequency characteristics in the process of coal and rock failure with different joint angles in order to reveal the generation mechanism of the electromagnetic radiation (EMR) and improve the accuracy of EMR early warning. …”
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  9. 589

    An open source code for modeling radio wave propagation in earth’s ionosphere by Alexander Green, William J. Longley, Meers M. Oppenheim, Matthew A. Young

    Published 2025-02-01
    “…The FDTD method directly solves Maxwell’s equations and captures all features of electromagnetic propagation, including the effects of polarization and finite-bandwidth wave packets. …”
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  10. 590

    A Hybrid Retrieval Method for an Ω-Class Bianisotropic Metamaterial Using Scattering Parameter Method by Gokhan Ozturk, Ugur Cem Hasar, Yunus Kaya, Huseyin Korkmaz, Ivaylo Stoyanov

    Published 2025-01-01
    “…Finally, its accuracy is examined by comparing simulated S-parameters with those reconstructed by using extracted electromagnetic parameters. It is observed that our proposed method determines the constitutive parameters with a relatively higher accuracy in a relatively short amount of time.…”
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  11. 591

    Doppler Effect Estimation and Compensation for Satellite Systems in Geolocation Problems by Marcello Asciolla, Angela Cratere, Francesco Dell'Olio

    Published 2025-01-01
    “…In particular, the scenario of interest considers a non-cooperative emitter of electromagnetic waves on the surface of the Earth and a receiver able to perform Angle of Arrival measurements embarked on a satellite in Low Earth Orbit. …”
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  12. 592

    Application of Comprehensive Geophysical Prospecting Method in the Exploration of Coal Mined-Out Areas by Xiao Luo, Shuang Gong, Zhonggang Huo, Hongyan Li, Xinpin Ding

    Published 2019-01-01
    “…And the distribution of mined-out areas and water accumulation in the coal mine are investigated in detail by using the comprehensive geophysical prospecting method of the transient electromagnetic method (TEM) and controlled source audio-frequency magnetotellurics (CSAMT). …”
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  18. 598

    The influence of modification on the structure and mechanical properties of aluminum alloys by Tetiana Nosova, Stella Mamchur

    Published 2024-06-01
    “…In addition to climatic and mechanical influences, chemical, biological, radiation, magnetic, electrical, and electromagnetic influences are possible. Ensuring resistance to mechanical, climatic and other influences is necessary for the normal functioning of mechanisms, components and parts. …”
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  19. 599

    Spectral narrowing in the resonance fluorescence of a driven V-type quantum emitter near a two-dimensional plasmonic nanostructure array by Spyridon G. Kosionis, Vassilios Yannopapas, Emmanuel Paspalakis

    Published 2025-01-01
    “…The V-type quantum system is driven by a coherent electromagnetic field whilst quantum interference effects in the spontaneous emission due to the presence of the plasmonic nanostructure are accounted for. …”
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  20. 600

    Optimization of Gain, Impedance, and Bandwidth of Yagi-Uda Array Using Particle Swarm Optimization by Munish Rattan, Manjeet Singh Patterh, B. S. Sohi

    Published 2008-01-01
    “…Particle swarm optimization (PSO) is a new, high-performance evolutionary technique, which has recently been used for optimization problems in antennas and electromagnetics. It is a global optimization technique-like genetic algorithm (GA) but has less computational cost compared to GA. …”
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