Showing 921 - 940 results of 1,156 for search '"electromagnetic"', query time: 0.05s Refine Results
  1. 921

    Charged spherically symmetric and slowly rotating charged black hole solutions in bumblebee gravity by Jia-Zhou Liu, Wen-Di Guo, Shao-Wen Wei, Yu-Xiao Liu

    Published 2025-02-01
    “…Abstract In this paper, we study the scenario in which the matter field is an electromagnetic field nonminimally coupled to the bumblebee vector field. …”
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    Article
  2. 922

    A Concise Review of Recent Advancements in Carbon Nanotubes for Aerospace Applications by Silvia Zecchi, Giovanni Cristoforo, Erik Piatti, Daniele Torsello, Gianluca Ghigo, Alberto Tagliaferro, Carlo Rosso, Mattia Bartoli

    Published 2024-12-01
    “…In aerospace applications, CNTs have demonstrated considerable promise either in the form of thin layers or as reinforcements in polymer and metal matrices, where they enhance mechanical, thermal, and electromagnetic performance in lightweight composites. …”
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  3. 923

    The Application of Terahertz Technology in Corneas and Corneal Diseases: A Systematic Review by Bing Jie Chow, Chang Liu, Mingyi Yu, Isabelle Xin Yu Lee, Jodhbir S. Mehta, Qing Yang Steve Wu, Regina Wong Kay Ting, Ke Lin, Yu-Chi Liu

    Published 2025-01-01
    “…Terahertz (THz) waves reside in the electromagnetic spectrum between the microwave and infrared bands. …”
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  4. 924

    Multiscale Physics of Atomic Nuclei from First Principles by Z. H. Sun, A. Ekström, C. Forssén, G. Hagen, G. R. Jansen, T. Papenbrock

    Published 2025-02-01
    “…Our calculations accurately reproduce—within theoretical error bars—available experimental data for low-lying collective states and the electromagnetic quadrupole transitions in ^{20−30}Ne. …”
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    Article
  5. 925

    Joint Active/Passive Beamforming Optimization via RWMMSE and Gradient Projection for Downlink IRS-Aided MU-MISO Systems by Seraphin F. Kimaryo, Eduard E. Bahingayi, Kyungchun Lee

    Published 2025-01-01
    “…Metamaterials are significantly advancing the way we wirelessly transmit electromagnetic signals between communicating devices. …”
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    Article
  6. 926

    Plasma-polymerized fluorocarbon Ag–Cu nanocomposites: Nanostructure optimization for superior SERS sensitivity by Joonhyuk Lee, Sung Hyun Kim, Seok-Kyun Son, Sang-Jin Lee

    Published 2025-01-01
    “…This enhancement relies on the presence of Raman-active molecules on suitable nanostructures, where local surface plasmon resonance creates electromagnetic hotspots. This paper proposes a method to finely control the distribution of Ag and Cu nanoparticles within a plasma–polymer–fluorocarbon (PPFC) thin film by adjusting the sputtering power density to improve SERS performance. …”
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  7. 927

    Characterization and analysis of Ca-Zn ferrite nanoparticles based flexible metamaterial for sensing applications by Md.Zikrul Bari Chowdhury, Mohammad Tariqul Islam, Iskandar Yahya, Abdulmajeed M. Alenezi, Mohamed S. Soliman, Md. Samsuzzaman

    Published 2025-03-01
    “…Structural characterization through X-ray diffraction (XRD) and field emission scanning electron microscopy (FESEM) confirmed the composite’s structural integrity and electromagnetic suitability. The MTM exhibited multi-frequency resonance at 2.4 GHz, 3.68 GHz, and 7 GHz, with the C-band resonance demonstrating high sensitivity for sensing applications. …”
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    Article
  8. 928

    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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  9. 929

    Design and Analysis of a Carbonyl Iron Powder/Epoxy Composite-Based Ultra-Wideband Multi-Pyramidal Magnetic Absorber Using an Equivalent Circuit Model by Aparna Parameswaran, Nohgyeom Ha, Soo Hyun Kim, Sukjin Kwon, Byeongjin Park, Sangkil Kim

    Published 2025-01-01
    “…This paper presents a CIP/epoxy composite based ultra-wide band electromagnetic multipyramidal absorber. The constituent parameters of the CIP/epoxy composite is experimentally extracted using a waveguide measurement setup. …”
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    Article
  10. 930

    Low-Power On-Chip Energy Harvesting: From Interface Circuits Perspective by Shuang Song, Dehong Wang, Mengyu Li, Siyao Cao, Feijun Zheng, Kai Huang, Zhichao Tan, Sijun Du, Menglian Zhao

    Published 2024-01-01
    “…This paper reviews existing energy harvesting modalities, including photovoltaic, piezoelectric, pyroelectric, electromagnetic, and vibration, together with circuit techniques of interfacing power management circuits for energy harvesters. …”
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    Article
  11. 931
  12. 932

    A BP Neural Network Method for Grade Classification of Loose Damage in Semirigid Pavement Bases by Bei Zhang, Jianyang Liu, Yanhui Zhong, Xiaolong Li, Meimei Hao, Xiao Li, Xu Zhang, Xiaoliang Wang

    Published 2021-01-01
    “…The results show that the classification and recognition of simulated electromagnetic waves have an accuracy of over 90%; the classification and recognition of radar data from an actual project have a recognition accuracy of over 80%. …”
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  13. 933

    Real-Time Respiratory Monitoring Using a Sparse-Sampled Frequency-Scanning White-Light Interferometry System by Wenyan Liu, Cheng Qian, Kexin Li, Yiping Wang, Xiaoyan Cai, Qiang Liu

    Published 2025-01-01
    “…Fiber-optic tip sensors offer significant potential in biomedical applications due to their high sensitivity, compact size, and resistance to electromagnetic interference. This study focuses on advancing phase demodulation techniques for ultra-short Fabry–Pérot cavities within limited spectral bandwidths to enhance their application in biomedicine and diagnostics. …”
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    Article
  14. 934
  15. 935

    Asymmetrical Modes of Outdoor Lighting Lines by V. B. Kozlovskaya, V. N. Kalechyts

    Published 2019-06-01
    “…As light sources, in the calculations the widely used luminaries with high-pressure sodium arc lamps connected through electromagnetic start-up equipment were considered. Such luminaries are sources of high harmonics, and they distort the sinusoidal voltage. …”
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    Article
  16. 936

    Far-Field Pattern Reconstruction from Near-Field Data Collected via a Nonconventional Plane-Rectangular Scanning: Experimental Testing by Francesco D’Agostino, Ilaria De Colibus, Flaminio Ferrara, Claudio Gennarelli, Rocco Guerriero, Massimo Migliozzi

    Published 2014-01-01
    “…It relies on the use of the nonredundant sampling representations of electromagnetic fields which employ an oblate ellipsoid or a surface formed by two circular “bowls” with the same aperture diameter but eventually different bending radii to shape a quasi-planar antenna. …”
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  17. 937

    Using Multivariate Geostatistics to Assess Patterns of Spatial Dependence of Apparent Soil Electrical Conductivity and Selected Soil Properties by Glécio Machado Siqueira, Jorge Dafonte Dafonte, Montserrat Valcárcel Armesto, Ênio Farias França e Silva

    Published 2014-01-01
    “…The apparent soil electrical conductivity (ECa) was continuously recorded in three successive dates using electromagnetic induction in horizontal (ECa-H) and vertical (ECa-V) dipole modes at a 6 ha plot located in Northwestern Spain. …”
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  18. 938

    Numerical simulation of MHD Sakiadis flows of convectively heated thixotropic nanofluids in a porous medium using revised transport laws and Wakif-Buongiorno's model by A. Wakif

    Published 2025-03-01
    “…Due to the particular inability of Fourier's and Fick's laws in the realistic quantification of transfer processes that can occur certainly within a flowing biphasic mixture, on the one hand, and the explanation of the memory relaxation features of such a non-homogenous medium, on the other hand, the present scrutinization intends to propose a representative biphasic flow model to reveal the principal demeanors of convectively heated thixotropic nanofluids during their steady two-dimensional flows in the laminar regime over a stretching planar geometry in a Darcy-Forchheimer porous medium under the magnetic impact of an external electromagnetic device. For this purpose, the renovated formulation of Wakif-Buongiorno's model is linked theoretically with the constructive equation of the thixotropic model and the generalized transport laws to describe properly the nanofluid motion, the thermal energy balance, and the nanoparticles’ molar concentration distribution under the assumptions of the boundary layer concept and the passive nanoparticles’ control approach. …”
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    Article
  19. 939

    Combination of MLFMA and ACA to Accelerate Computation of Scattering from Underground Targets by Zhiwei Liu, Dan Tang, Zhanyang Zhang, Yueyuan Zhang, Xiaoli Wang, Shunli Jie

    Published 2019-01-01
    “…Electromagnetic nondestructive evaluation of underground targets is of great significance for the safety of urban construction. …”
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    Article
  20. 940

    Research on UAV Jamming Signal Generation Based on Intelligent Jamming by Haonan Xue, Zhihai Zhuo, Weihao Yan, Yuexia Zhang

    Published 2025-01-01
    “…These include low efficiency, difficulties in managing dynamic and complex electromagnetic environments, and a heavy reliance on prior knowledge about the signals. …”
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    Article