Relativistic Einstein rings of Reissner–Nordström black holes nonminimally coupled to electrodynamics by Rodrigo Maier

“…Abstract In this paper we examine the relativistic Einstein rings assuming a nonminimal coupling between gravitation and electromagnetism in a Reissner–Norström background. Starting from a general action of a nonminimal coupled electrodynamics we show that an unstable effective photon sphere may be obtained in the regime of eikonal approximation. …”
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A wideband coaxial-to-waveguide transition devised with topology optimization by Md. Sazzad Hossain, Jane M. Lehr, Andrew Fierro, Edl Schamiloglu

“…While primarily used as a foundational step in regenerative design for structural mechanics, the general TO framework is also applicable to many of the complex issues in electromagnetics such as frequency agile mode converters. …”
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Abundant Exact Soliton Solutions of the (2+1)-Dimensional Heisenberg Ferromagnetic Spin Chain Equation Based on the Jacobi Elliptic Function Ideas by Qinghao Zhu, Jianming Qi

“…Moreover, the ferromagnetism plays a fundamental role in modern technology and industry and it is principal for many electrical and electromechanical devices such as generators, electric motors, and electromagnets. In this article, the exact solutions of the nonlinear (2+1)-dimensional HFSCE are successfully examined by an extended modified version of the Jacobi elliptic expansion method (EMVJEEM). …”
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Terahertz Metamaterials Inspired by Quantum Phenomena by Ziheng Ren, Yuze Hu, Weibao He, Siyang Hu, Shun Wan, Zhongyi Yu, Wei Liu, Quanlong Yang, Yuri S. Kivshar, Tian Jiang

“…For spatial THz waves, the effects inspired by quantum phenomena include electromagnetically induced transparency (EIT), Fano resonance, bound states in the continuum (BICs), and exceptional points (EPs) in non-Hermitian systems. …”
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Ink-jetting-based conformal additive manufacturing: advantages, opportunities, and challenges by Hao Yi, Xiaoqi Guo, Fangle Chang, Huajun Cao, Jia An, Chee Kai Chua

“…Furthermore, leveraging these advantages, the review discusses potential applications in conformal electronics, energy devices, biology, and electromagnetics to bolster the ongoing development and application. …”
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Optimized Operator-Splitting Methods in Numerical Integration of Maxwell's Equations by Z. X. Huang, X. L. Wu, W. E. I. Sha, B. Wu

“…Optimized operator splitting methods for numerical integration of the time domain Maxwell's equations in computational electromagnetics (CEM) are proposed for the first time. …”
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High Accuracy 2D-DOA Estimation for Conformal Array Using PARAFAC by Liangtian Wan, Weijian Si, Lutao Liu, Zuoxi Tian, Naixing Feng

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Optimal Pattern Synthesis of Linear Antenna Array Using Grey Wolf Optimization Algorithm by Prerna Saxena, Ashwin Kothari

“…The aim of this paper is to introduce the grey wolf optimization (GWO) algorithm to the electromagnetics and antenna community. GWO is a new nature-inspired metaheuristic algorithm inspired by the social hierarchy and hunting behavior of grey wolves. …”
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Geometry-symmetry-free and material-symmetry-guaranteed polariton-induced transparency by Xingyu Tang, Huaping Wang, Zhenyang Cui, Sihao Xia, Zhiwei He, Song Han, Hongsheng Chen, Yingjie Wu

“…Summary: Plasmon-induced transparency is a classical analogue of electromagnetically induced transparency (EIT). However, its realization and control primarily rely on geometry engineering rather than tuning plasmon polaritons (PPs) themselves, due to their relatively poor tunability. …”
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Thermodynamical topology with multiple defect curves for dyonic AdS black holes by Zi-Qing Chen, Shao-Wen Wei

“…Abstract Dyonic black holes with quasitopological electromagnetism exhibit an intriguing phase diagram with two separated first-order coexistence curves. …”
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A sustainable method of desalination using stacked layer filtration and magnetism by Mohan Venkata Sai Krishna Vellampalli, Prasanna Kuchelar

“…This study created eight combinations of two-stage treatment using permanent magnets, electromagnets (10 V), and stacked layer filtration to treat artificial seawater (ASW) derived from different salt mixes. …”
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Shaped-Pattern Reflectarray Antennas for mm-Wave Networks Using a Simple Cell Topology by Borja Imaz-Lueje, Alvaro F. Vaquero, Daniel R. Prado, Marcos R. Pino, Manuel Arrebola

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A Novel Brushless Wound Rotor Synchronous Machine Utilizing Inherent Sub-Harmonic Component by Muhammad Ahsan Ul Haq, Haroon Farooq, Asif Hussain, Syed Abdul Rahman Kashif

“…In WRSMs, there is no need for permanent magnets as the rotors of these machines are electromagnets. However, there is the sparking issue which consequently requires regular maintenance of slip rings and carbon brushes. …”
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An Omni-Directional Wideband Patch Antenna with Parasitic Elements for Sub-6 GHz Band Applications by Liton Chandra Paul, Himel Kumar Saha, Tithi Rani, Md. Zulfiker Mahmud, Tushar Kanti Roy, Wang-Sang Lee

“…Initially, a slotted small patch antenna with a full ground plane is designed and then partial ground plane and electromagnetically coupled parasitic elements have been incorporated and optimized to get desired performance. …”
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A comprehensive review of metasurface-assisted direction-of-arrival estimation by Huang Min, Li Ruichen, Zou Yijun, Zheng Bin, Qian Chao, Jin Hui, Chen Hongsheng

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Preparation and Properties of PTFE-PMMA Core-Shell Nanoparticles and Nanocomposites by Diego Antonioli, Michele Laus, Giampaolo Zuccheri, Valerj Kapeliouchko, Maria Cristina Righetti, Luca Boarino, Katia Sparnacci

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