Showing 681 - 700 results of 1,540 for search '"electromagnetism"', query time: 0.04s Refine Results
  1. 681

    Experimental study and gyrokinetic simulations of isotope effects on core heat transport in JET tokamak deuterium and tritium plasmas by D. Brioschi, P. Mantica, A. Mariani, N. Bonanomi, E. Delabie, J. Garcia, N. Hawkes, I. Jepu, D. Keeling, E. Lerche, E. Litherland-Smith, C.F. Maggi, S. Menmuir, G. Szepesi, D. Taylor, D. Van Eester, JET Contributors

    Published 2025-01-01
    “…The analysis is performed at fixed radius $\rho_\mathrm{tor} = 0.33$ , selected in order to maximize the electromagnetic stabilizing effects on turbulence, both from thermal and suprathermal particles. …”
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  2. 682

    Asymptotic Analysis of Transverse Magnetic Multiple Scattering by the Diffraction Grating of Penetrable Cylinders at Oblique Incidence by Ömer Kavaklıoğlu, Roger Henry Lang

    Published 2011-01-01
    “…We have presented a derivation of the asymptotic equations for transverse magnetic multiple scattering coefficients of an infinite grating of penetrable circular cylinders for obliquely incident plane electromagnetic waves. We have first deducted an “Ansatz” delineating the asymptotic behavior of the transverse magnetic multiple scattering coefficients associated with the most generalized condition of oblique incidence (Kavaklıoğlu, 2000) by exploiting Schlömilch series corresponding to the special circumstance that the grating spacing is much smaller than the wavelength of the incident electromagnetic radiation. …”
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  3. 683

    Enhanced Ehlers transformation and the Majumdar-Papapetrou-NUT spacetime by Marco Astorino

    Published 2020-01-01
    “…After analysing the Ehlers and the Reina-Treves transformations we propose a new one, more precise in the presence of the Maxwell electromagnetic field. The enhanced Ehlers transformation proposed turns out to act as a gravitomagnetic duality, analogously to the electromagnetic duality, but for gravity: it rotates the mass charge into the gravomagnetic (or NUT) charge. …”
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  4. 684

    Investigating Equations Used to Design a Very Small Normal-Mode Helical Antenna in Free Space by Dang Tien Dung, Quoc Dinh Nguyen, Do Quoc Trinh, Yoshihide Yamada

    Published 2018-01-01
    “…Previously, electrical characteristics of NMHA were obtained through electromagnetic simulations. In practical design of NMHA, equational expressions for the main electrical characteristics are more convenient. …”
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  5. 685

    Discussion of a Possible Corrected Black Hole Entropy by Miao He, Ziliang Wang, Chao Fang, Daoquan Sun, Jianbo Deng

    Published 2018-01-01
    “…At last, under EiBI gravity with the electromagnetic field, a specific corrected entropy of black hole is given.…”
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  6. 686

    Modelling and Design of HF RFID Passive Transponders with Additional Energy Harvester by Piotr Jankowski-Mihułowicz, Włodzimierz Kalita, Mariusz Skoczylas, Mariusz Węglarski

    Published 2013-01-01
    “…It should be noted that either passive or semipassive transponders are supplied with energy that is derived from the electromagnetic field generated by the read/write device and its antenna. …”
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  7. 687
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  9. 689

    Relativistic Binary Precession: Impact on Eccentric Massive Binary Black Hole Accretion and Hydrodynamics by Stanislav DeLaurentiis, Zoltán Haiman, John Ryan Westernacher-Schneider, Luke Major Krauth, Jordy Davelaar, Jonathan Zrake, Andrew MacFadyen

    Published 2025-01-01
    “…We find that the GR precession of the binary's semimajor axis can introduce a dominant modulation in the binary's accretion rate and the corresponding high-energy electromagnetic light curves. We discuss the conditions under which this occurs and its detailed characteristics and mechanism. …”
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  10. 690

    Modeling of the 2.4 GHz wireless channel path loss in substation by Qiang LI, Hongxin ZHANG, Jiaqi LUO, Yang LU, Jianqi LI, Yinghua LV

    Published 2016-07-01
    “…In order to assess the influence of electromagnetic interference in the substation of the electric power communication system,frequency measurement method was adopted to obtain the data of 2.4 GHz electromagnetic wave path loss of the substation of 110 kV and 220 kV in a certain city.By using the method of minimum mean square error (MMSE) and cumulative sum (CUSUM) to estimate the parameters of path loss model such as path loss index and the standard deviation,the path loss model was set up according to measured data,respectively.The simulation results show that the gap between estimation results and the measured values is not big.In addition,a ZigBee simulation system was constructed to simulate the relationship of bit error rate (BER) varies with distance in two cases of the signal to noise ratio (SNR) at 5 dB and 10 dB respectively.A research basis for short distance wireless communication devices decorated in the substation environment was provided.…”
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  11. 691

    Pattern Recognition of Signals for the Fault-Slip Type of Rock Burst in Coal Mines by X. S. Liu, J. Tan, Y. L. Tan, S. C. Hu

    Published 2015-01-01
    “…Then, the patterns of the electromagnetic radiation, acoustic emission (AE), and microseismic signals in the fault-slip type of rock burst were proposed, in that before the rock burst occurs, the electromagnetic radiation intensity near the sliding surface increases rapidly, the AE energy rises exponentially, and the energy released by microseismic events experiences at least one peak and is close to the next peak. …”
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  12. 692

    A tunable multi-resonance 2D V-groove metasurface by Zhengqing Qi, Yipin Chen, Tianjing Zhao, Peng Chen, Huizhen Yang

    Published 2025-01-01
    “…Based on the electromagnetic enhancement mechanism, surface-enhanced Raman scattering (SERS) substrates with multi-resonance enhancement can achieve a higher enhancement factor (EF) by matching the resonance frequencies to both the excitation and Raman scattering frequencies. …”
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  13. 693

    Analysis of Dynamic Performance of Magnetic Field Modulated Gear by Liu Meijun, Bao Guangqing, Hou Chenchen, Zuo Zhengpu, Liu Mingmin

    Published 2017-01-01
    “…But its stiffness is low,which will lead to the transient oscillations undergoing the torque of prime motor is disturbance or the velocity changes.Based on the analysis of the basic principle of magnetic gear,a magnetic field modulated gear is designed,whose transmission ratio is 5. 5,and the performance of the magnetic gear with different structures is analyzed by using the electromagnetic field finite element method. A structure type with the highest efficiency is selected,in the iron core of high speed mover of selected gear by introducing damping winding with closed loop,in the process of transient oscillations,the current will be induced in the damping winding,which will produce damping electromagnetic torque can inhibit the mechanical vibration of transmission shaft and maintain the stability of system. …”
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  14. 694

    Orthogonal Design Method for Optimizing Roughly Designed Antenna by Qing Zhang, Sanyou Zeng, Chunbang Wu

    Published 2014-01-01
    “…Then the ODM method is employed to locally optimize the antenna with HFSS (HFSS is a commercial and feasible electromagnetics simulation software). The result shows the ODM optimizes successfully the roughly evolved antenna.…”
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  15. 695

    Modeling Absorbed Energy in Microwave Range for Nanocomposite Hot Melts Containing Metallic Additives by Radu F. Damian, Romeo Cristian Ciobanu

    Published 2025-01-01
    “…The actual limitations of electromagnetic simulations are described, along with an application related to the Nicolson–Ross–Weir procedure in infinite media, which opens new perspectives in nanocomposite electromagnetic modeling. …”
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  16. 696
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  18. 698

    On an initial-boundary value problem for the nonlinear Schrödinger equation by Herbert Gajewski

    Published 1979-01-01
    “…We study an initial-boundary value problem for the nonlinear Schrödinger equation, a simple mathematical model for the interaction between electromagnetic waves and a plasma layer. We prove a global existence and uniqueness theorem and establish a Galerkin method for solving numerically the problem.…”
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  19. 699

    Microwave Imaging of Three-Dimensional Targets by Means of an Inexact-Newton-Based Inversion Algorithm by Claudio Estatico, Matteo Pastorino, Andrea Randazzo

    Published 2013-01-01
    “…The approach is based on the full vector equations of the electromagnetic inverse scattering problem. The ill-posedness of the problem is faced by the application of an inexact-Newton method. …”
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  20. 700

    Exploiting Microwave Imaging Methods for Real-Time Monitoring of Thermal Ablation by Rosa Scapaticci, Gennaro G. Bellizzi, Marta Cavagnaro, Vanni Lopresto, Lorenzo Crocco

    Published 2017-01-01
    “…Microwave thermal ablation is a cancer treatment that exploits local heating caused by a microwave electromagnetic field to induce coagulative necrosis of tumor cells. …”
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