Showing 641 - 660 results of 1,540 for search '"electromagnet"', query time: 0.04s Refine Results
  1. 641

    An Overview of Recent Advances in the Iterative Analysis of Coupled Models for Wave Propagation by D. Soares, L. Godinho

    Published 2014-01-01
    “…Many works have been published on this subject, addressing the case of electromagnetic, acoustic, or elastic waves and making use of different strategies to perform this coupling. …”
    Get full text
    Article
  2. 642

    SL 2(ℝ) symmetries of SymTFT and non-invertible U(1) symmetries of Maxwell theory by Azeem Hasan, Shani Meynet, Daniele Migliorati

    Published 2024-12-01
    “…Abstract Recent proposals for the Symmetry Topological Filed Theory (SymTFT) of Maxwell theory admit a 0-form symmetry compatible with the classical SL 2(ℝ) duality of electromagnetism. We describe how to realize these automorphisms of the SymTFT in terms of its operators and we describe their effects on the dynamical theory and its global variants. …”
    Get full text
    Article
  3. 643

    An Optimal Electric Dipole Antenna Model and Its Field Propagation by Yidong Xu, Lili Guo, Wei Xue, Korochentsev Vladimir, Junwei Qi

    Published 2016-01-01
    “…The paper also presents a full-wave electromagnetic simulation for the electromagnetic field propagation in layered conducting medium, which is excited by the horizontal electric dipole antennas. …”
    Get full text
    Article
  4. 644

    Magnetodielectric and Metalomagnetic 1D Photonic Crystals Homogenization: ε-μ Local Behavior by J. I. Rodríguez Mora, J. Flores Méndez, B. Zenteno Mateo, F. Severiano Carrillo, R. C. Ambrosio Lázaro

    Published 2016-01-01
    “…A theory for calculating the effective optic response of photonic crystals with metallic and magnetic inclusions is reported, for the case when the wavelength of the electromagnetic fields is much larger than the lattice constant. …”
    Get full text
    Article
  5. 645

    Analysis of Shielding Effectiveness of the Cavity Built with Single-Layer Reinforced Concrete by Xiangang Sun, Bing Wei, Yuebo Li, Jie Yang, Liuhong Huang, Jiuliang Xiong

    Published 2022-01-01
    “…In view of the existing literature mainly studying the situation of infinite reinforced concrete structure, the shielding effectiveness of three-dimensional single-layer reinforced concrete cavity is studied by considering the structural parameters of steel and the electromagnetic parameters of the concrete. 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. …”
    Get full text
    Article
  6. 646

    Three-Dimensional Memristive Hindmarsh–Rose Neuron Model with Hidden Coexisting Asymmetric Behaviors by Bocheng Bao, Aihuang Hu, Han Bao, Quan Xu, Mo Chen, Huagan Wu

    Published 2018-01-01
    “…Since the electrical activities of neurons are closely related to complex electrophysiological environment in neuronal system, a novel three-dimensional memristive Hindmarsh–Rose (HR) neuron model is presented in this paper to describe complex dynamics of neuronal activities with electromagnetic induction. The proposed memristive HR neuron model has no equilibrium point but can show hidden dynamical behaviors of coexisting asymmetric attractors, which has not been reported in the previous references for the HR neuron model. …”
    Get full text
    Article
  7. 647
  8. 648

    The radiation from ultrafast point dipoles, moving uniformly near chiral media by V. N. Kadantsev

    Published 2021-06-01
    “…It is shown that some types of electromagnetic radiation – transient and/or Cherenkov radiation – have the characteristics of superchiral fields. …”
    Get full text
    Article
  9. 649
  10. 650
  11. 651
  12. 652

    Quantum Fisher information of N-level atoms under the influence of the thermal field and the Stark effect by S. Jamal Anwar, M. Ibrahim, M. Khalid Khan, Haifa S. Alqannas, S. Abdel-Khalek

    Published 2025-01-01
    “…Hence, non-moving and moving-N-level atomic systems interacting with the electromagnetic field in the presence of the SS are supportive of maintaining and sustaining the QE.…”
    Get full text
    Article
  13. 653

    Analysis of the vacuum solution of the five-dimensional Einstein field equations with negative cosmological constant via variational symmetries by Fatemeh Ahangari

    Published 2025-02-01
    “…The Kaluza-Klein theory can be reckoned as a classical unified field theory of two of the significant forces of nature gravitation and electromagnetism. This formulation geometrically demonstrates the effects of a gravitational and an electromagnetic field by investigating a five-dimensional space with a metric constructed via the spacetime metric and the four-potential of the electromagnetic field. …”
    Get full text
    Article
  14. 654

    Design and Analysis of a Five-Band Polarization-Insensitive Metamaterial Absorber by Han Wu, Shijun Ji, Ji Zhao, Chengxin Jiang, Handa Dai

    Published 2020-01-01
    “…The five-band absorber has potential application in multiband electromagnetic stealth, bionic sensor, thermal radiation measuring instrument, and so on.…”
    Get full text
    Article
  15. 655

    EXPRESS-ANALYSIS OF THE AGGLUTINANT AND BAR SANDS HUMIDITY by S. L. Rovin, M. V. Mamaeva, P. A. Kushel

    Published 2006-02-01
    “…The method and device for control of humidity content of different aggiutinant sands on the level of microwave electromagnetic pulse consumption are presented.…”
    Get full text
    Article
  16. 656

    Calculation of Differential Propagation Constant Determined by Plant Morphology Using Polarimetric Measurement by Chufeng Hu, Nanjing Li

    Published 2014-01-01
    “…The morphology of vegetation greatly impacts propagation of polarized electromagnetic wave. In order to validate this phenomenon, the mathematical relation between the differential propagation constant of forest vegetation and of its polarized echo is quantitatively derived by using backscattering power profile. …”
    Get full text
    Article
  17. 657

    Application of a Surface Waveguide in Microwave Drying Units of the Agribusiness Industry by Ekaterina Ritter, Alexey Savostin, Dmitry Ritter, Galina Savostina, Andrey Smirnov, Sayat Moldakhmetov

    Published 2024-01-01
    “…In the last two decades, the electromagnetic field of the microwave range has been successfully introduced into various branches of the agribusiness industry as one of the most promising and advanced technologies for drying manufactured products. …”
    Get full text
    Article
  18. 658

    Evolutionary Algorithm Geometry Optimization of Optical Antennas by Ramón Díaz de León-Zapata, Gabriel González, Efrén Flores-García, Ángel Gabriel Rodríguez, Francisco Javier González

    Published 2016-01-01
    “…Printed circuit antennas have been used for the detection of electromagnetic radiation at a wide range of frequencies that go from radio frequencies (RF) up to optical frequencies. …”
    Get full text
    Article
  19. 659

    Research on Architecture of LEO Satellite Internet of Things and Key Technologies by Xiaojin DING, Tao HONG, Rui LIU, Wentao PENG, Gengxin ZHANG

    Published 2021-12-01
    “…First, we analyzed the composition and demand characteristics of LEO satellite IoTs, and designed an architecture of LEO satellite IoTs.Second, to extracted characteristics of electromagnetic environment and channel, we studied electromagnetic environment and channel sensing methods through constructing neural network model.Then, we investigated an active terminal-identifi cation method for detecting active terminals.Finally, considered multiple-input multiple-output as the main approach to improved the capacity of terrestrial mobile communication systems, we explored a pair of algorithms of mining satellite spatial resources for realizing the collision mitigation and capacity improvement of LEO IoT terminals.Simulation results showed that the designed method sofmining spatial-domain resources could mitigated eff ectively signal collisions among IoT terminals, and improved signifi cantly the concurrent accessing number of LEO satellite IoT terminals.…”
    Get full text
    Article
  20. 660

    Thermal Effect Monitoring System of Dry-Type Smoothing Reactor by Jingen Hu, Minglei Shi, Chenhua Jiao, Guichi Zhu

    Published 2022-01-01
    “…In order to study the influence of harmonic current loss characteristics on the thermal effect of UHV dry smoothing reactor, the author proposes a thermal effect monitoring system under the loss mechanism of dry smoothing reactor. By adding the electromagnetic loss density to the temperature field as a heat source, the electromagnetic-thermal multiphysics mapping relationship is established, the convective heat transfer process is more accurately simulated, and the temperature rise calculation is realized. …”
    Get full text
    Article