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

    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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  2. 682

    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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  3. 683

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

    Published 2014-01-01
    “…The reason why we evolve roughly is because the evolving is time consuming even if numerical electromagnetics code 2 (NEC2) is employed (NEC2 source code is openly available and is fast in wire antenna simulation but not much feasible). …”
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    Article
  4. 684

    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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    Article
  5. 685
  6. 686
  7. 687

    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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  8. 688

    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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  9. 689

    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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    Article
  10. 690

    Design and Simulation of an Antenna-Coupled Microbolometer at 30 THz by Angel Colin, Eduardo Pérez-Tijerina, Francisco Solis-Pomar

    Published 2017-01-01
    “…The device has been simulated by means of the commercial electromagnetic software (HFSS), which is based on the finite elements method. …”
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    Article
  11. 691

    A Rectangular Planar Spiral Antenna for GIS Partial Discharge Detection by Xiaoxing Zhang, Yefei Han, Wei Li, Xuetao Duan

    Published 2014-01-01
    “…It can expediently receive electromagnetic waves leaked from basin-type insulators and can effectively suppress low frequency electromagnetic interference from the surrounding environment. …”
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    Article
  12. 692

    Automation of signal processing of electric field intensity sensors included in information-measuring system by S. S. Kolmogorova, D. S. Baranov, A. S. Kolmogorov, S. V. Biryukov

    Published 2019-10-01
    “…The adverse effect of electromagnetic fields on a person makes it necessary to exclude his presence in the measurement process. …”
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  13. 693

    A hybrid swarm intelligent optimization algorithm for antenna design problems by Supreet Singh, Harbinder Singh, Nitin Mittal, Gurpreet Kaur Punj, Lalit Kumar, Kinde Anlay Fante

    Published 2025-02-01
    “…The effectiveness of SSNMRA is validated through the CEC 2019 benchmark test suite and applied to various electromagnetic optimization problems. Experimental results demonstrate that SSNMRA outperforms existing state-of-the-art algorithms, offering superior optimization capability and enhanced convergence accuracy, making it a promising solution for complex antenna design and other electromagnetic applications.…”
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  14. 694

    Ultrarelativistic Spinning Particle and a Rotating Body in External Fields by Alexei A. Deriglazov, Walberto Guzmán Ramírez

    Published 2016-01-01
    “…Vector model in an arbitrary electromagnetic field leads to generalized Frenkel and BMT equations. …”
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  15. 695

    Recent applications of fractional calculus to science and engineering by Lokenath Debnath

    Published 2003-01-01
    “…This paper deals with recent applications of fractional calculus to dynamical systems in control theory, electrical circuits with fractance, generalized voltage divider, viscoelasticity, fractional-order multipoles in electromagnetism, electrochemistry, tracer in fluid flows, and model of neurons in biology. …”
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  16. 696
  17. 697

    Research on indoor THz channel reflection and transmission characteristics for integrated sensing and communication by LIAO Xi, LIN Changxi, ZHENG Xiangquan, WANG Yang, LIN Feng, CHEN Qianbin

    Published 2024-09-01
    “…A quantum particle swarm optimization algorithm was used to extract the material electromagnetic parameters, and a joint frequency-incidence angle model of the reflection coefficient was proposed. …”
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  18. 698

    Multi-ray channel modeling for programmable wireless environments in the terahertz band by Wenyu LUO, Hechao LIU

    Published 2019-07-01
    “…Terahertz communication system based on programmable wireless environment allowed programming customization of electromagnetic wave propagation in the most suitable ways for different wireless devices.It could not only improve serious fading,interference and non-line-of-sight problems,but also significantly enhance the security and privacy of the system.The channel modeling of terahertz wireless communication in programmable wireless environment was focused.Firstly,a multi-ray channel model for terahertz-band programmable wireless environment was established based on ray tracing technology as well as the propagation model of line-of-sight and non-line-of-sight.Then,based on the established propagation model,reflection coefficient,the broadband channel capacity under the water-filling power allocation algorithm and the RMS delayed extension were further studied.The simulation and analysis results show that the programmable wireless environment greatly reduces the influence of path loss and multipath fading in terahertz wireless transmission through active interference in electromagnetic wave transmission,improves the transmission capacity of terahertz communication system,which provides a reference for the later design of terahertz communication system,especially indoor terahertz communication system.…”
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  19. 699
  20. 700

    Color Confinement and Spatial Dimensions in the Complex-Sedenion Space by Zi-Hua Weng

    Published 2017-01-01
    “…Maxwell was the first to employ the quaternions to study the electromagnetic fields. His method inspires subsequent scholars to introduce the quaternions, octonions, and sedenions to research the electromagnetic field, gravitational field, and nuclear field. …”
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