Electrical and magnetic anisotropies in van der Waals multiferroic CuCrP2S6 by Xiaolei Wang, Zixuan Shang, Chen Zhang, Jiaqian Kang, Tao Liu, Xueyun Wang, Siliang Chen, Haoliang Liu, Wei Tang, Yu-Jia Zeng, Jianfeng Guo, Zhihai Cheng, Lei Liu, Dong Pan, Shucheng Tong, Bo Wu, Yiyang Xie, Guangcheng Wang, Jinxiang Deng, Tianrui Zhai, Hui-Xiong Deng, Jiawang Hong, Jianhua Zhao

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Ag-Nanowire Bundles with Gap Hot Spots Synthesized in Track-Etched Membranes as Effective SERS-Substrates by Elizaveta P. Kozhina, Sergey A. Bedin, Natalia L. Nechaeva, Sergey N. Podoynitsyn, Vladimir P. Tarakanov, Stepan N. Andreev, Yuriy V. Grigoriev, Andrey V. Naumov

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Bending Force of Hot Rolled Strip Based on Improved Whale Optimization Algorithm and Twinning Support Vector Machine by Chunyang Shi, Baoshuai Wang, Jin Chen, Ruxin Zhong, Shiyu Guo, Peng Sun, Zhicai Ma

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Penrose Process: Its Variants and Astrophysical Applications by Zdeněk Stuchlík, Martin Kološ, Arman Tursunov

“…The extraordinary case is represented by the radiative Penrose process that can occur only around magnetized Kerr spacetimes but just inside their ergosphere, in contrast to the magnetic Penrose process that can occur in a more extended effective ergosphere determined by the intensity of the electromagnetic interaction. The explanation is simple, as the radiative Penrose process is closely related to radiated photons with negative energy whose existence is limited just to the ergosphere.…”
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Gravitational versus Magnetohydrodynamic Waves in Curved Spacetime in the Presence of Large-Scale Magnetic Fields by Kostas Kleidis, Apostolos Kuiroukidis, Demetrios B. Papadopoulos

“…In particular, we examine to what extend perturbations of the electric and/or the magnetic field can be amplified due to a potential energy transfer from the GW to the electromagnetic (EM) degrees of freedom. The evolution of the perturbed quantities depends on four free parameters, namely, the conductivity of the fluid, <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mi>σ</mi></semantics></math></inline-formula>; the speed of sound square, <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mfrac><mn>1</mn><mn>3</mn></mfrac><mo><</mo><msup><mfenced separators="" open="(" close=")"><mfrac><msub><mi>C</mi><mi>s</mi></msub><mi>c</mi></mfrac></mfenced><mn>2</mn></msup><mo>≡</mo><mi>γ</mi><mo><</mo><mn>1</mn></mrow></semantics></math></inline-formula>, which in this model may serve also as a measure of the inherent anisotropy; the GW frequency, <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><msub><mi>ω</mi><mi>g</mi></msub></semantics></math></inline-formula>; and the associated angle of propagation with respect to the direction of the magnetic field, <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mi>θ</mi></semantics></math></inline-formula>. …”
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Hybrid Pulse-Width Modulation Strategy With Reduced High-Frequency Common-Mode Voltage to Lower RMS Motor Leakage Current for a Three-Level Neutral Point Clamped Converter by Khoa Dang Pham, Mon-Van Doi, Nho-Van Nguyen

“…Due to the capacitive nature of Common-mode impedance, high-frequency Common-mode voltage due to high switching frequency leads to an increase in RMS leakage current, which, in turn, causes higher power loss, Electromagnetic Interferences, and deteriorated harmonic distortion in the three-level Neutral-Point-Clamped converter. …”
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Structure, optical properties, TD-DFT simulations for nanosecond and continuous laser irradiation of vanadium antimony borate glass doped with nickel ferrite by A. R. Ghazy, S. A. Abdel Gawad, R. Ghazy, A. N. EL‑Sharkawy, O. M. Hemeda, A. M. A. Henaish

“…The glass was found to absorb electromagnetic waves with wavelengths lower than 500 nm, while the energy gap decreased from 2.46 eV for 0.1 mol% V2O5 to 2.39 eV for 0.5 wt% V2O5. …”
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Study on the estimation of Euler angles for Macau Science Satellite-1 by Qing Yan, JiaMing Ou, Le Suo, Yi Jiang, PengFei Liu

“…Before launch of the low-orbit, low-inclination Macau Science Satellite-1 (known as MSS-1), we simulated the estimation of Euler angles by using the magnetic measurements of the in-orbit Swarm and China Seismo-Electromagnetic Satellite (noted as CSES), with various data combinations. …”
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Optimizing AC Resistance of Solid PCB Winding by Minh Huy Nguyen, Handy Fortin Blanchette

“…To clarify this phenomenon, this paper focuses on modeling the influence of skin and proximity effects on AC resistance of planar PCB winding, thereby providing guidelines to reduce the winding AC resistance. An approximate electromagnetic calculation method is proposed and it shows that when the winding proximity AC to DC ratio <inline-formula> <math display="inline"> <semantics> <mrow> <mo>(</mo> <msub> <mi>F</mi> <mrow> <mi>p</mi> <mi>r</mi> <mi>o</mi> <mi>x</mi> <mi>i</mi> <mi>m</mi> <mi>i</mi> <mi>t</mi> <mi>y</mi> </mrow> </msub> <mo>)</mo> </mrow> </semantics> </math> </inline-formula> is equal to <inline-formula> <math display="inline"> <semantics> <mfrac> <mn>1</mn> <mn>3</mn> </mfrac> </semantics> </math> </inline-formula> the AC on DC ratio caused by skin effect <inline-formula> <math display="inline"> <semantics> <mrow> <mo>(</mo> <msub> <mi>F</mi> <mrow> <mi>s</mi> <mi>k</mi> <mi>i</mi> <mi>n</mi> </mrow> </msub> <mo>)</mo> </mrow> </semantics> </math> </inline-formula>, the winding is optimized and it has lowest AC resistance. 3-D finite element simulations of 3, 7 and 10-Turn windings, which are divided into 3 groups with the same footprint, are presented to investigate the lowest AC resistance when the track width varies from 3 mm to 5 mm and the frequency range is up to 700 kHz. …”
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A Single Wavelength Mid-Infrared Photoacoustic Spectroscopy for Noninvasive Glucose Detection Using Machine Learning by Abdulrahman Aloraynan, Shazzad Rassel, Chao Xu, Dayan Ban

“…Multiple noninvasive glucose detection techniques have been developed, including bio-impedance spectroscopy, electromagnetic sensing, and metabolic heat conformation. …”
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Rain-Based Attenuation and Dispersion Characteristics of Terahertz Wave in Tropical Climate: Experimentally Verified Reliability Study by Debraj Chakraborty, Sajith D. Nair, Moumita Mukherjee

“…Atmospheric condition can affect the electromagnetic/radio signal transmission severely. Since, the presence of seasonal hydrometeors in atmosphere may lead to drastic degradation in the free-space propagation of terahertz signal, therefore thorough and comprehensive investigation is essentially required to optimize the future channel-model for terahertz carrier frequency. …”
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Polyethylene terephthalate-based colored emitters for efficient daytime radiative cooling by Dan Meng, Wen-Zhuang Ma, Yu-Yao Cheng, Meng-Yang Xu, Xu-Chu Deng, Jing Liu, Yu-Shan Chen

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Critical State Theory for the Magnetic Coupling between Soft Ferromagnetic Materials and Type-II Superconductors by Muhammad U. Fareed, Harold S. Ruiz

“…These phenomena, which are in apparent contradiction with the most fundamental theory of electromagnetism for superconductivity, that is, the critical state theory (CST), have remained unexplained for about 20 years, given the acceptance of the controversial and yet paradigmatic existence of the so-called overcritical current densities. …”
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Statistical Characterization and Modeling of Indoor RF-EMF Down-Link Exposure by Biruk Ashenafi Mulugeta, Shanshan Wang, Wassim Ben Chikha, Jiang Liu, Christophe Roblin, Joe Wiart

“…With the increasing use of wireless communication systems, assessment of exposure to radio-frequency electromagnetic field (RF-EMF) has now become very important due to the rise of public risk perception. …”
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Solar Photovoltaic Hotspot Inspection Using Unmanned Aerial Vehicle Thermal Images at a Solar Field in South India by Umesh Pruthviraj, Yashwant Kashyap, Effrosyni Baxevanaki, Panagiotis Kosmopoulos

“…The defects on solar cells were identified with the use of thermal bands, which record and point out their temperature of them, whereas anomalies in the detected temperature in defective solar cells were captured using thermal electromagnetic waves, and these areas are mentioned as hotspots. …”
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3D Printed Active Origami Dielectrics for Frequency Tunable Antennas Through Mechanical Actuation by Yingwei Wu, Andrea Vallecchi, Yunfang Yang, Zhong You, Ekaterina Shamonina, Christopher J. Stevens, Patrick S. Grant

“…We investigate using a reconfigurable metamaterial structure based on high permittivity dielectric elements in a flexible origami framework to control the electromagnetic response of a suspended patch antenna. …”
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Computational Assessment of Magnetic Nanoparticle Targeting Efficiency in a Simplified Circle of Willis Arterial Model by Rodward L. Hewlin, Joseph M. Tindall

“…The computational model is used to analyze pulsatile blood flow, particle motion, and particle capture efficiency in a magnetized region using the magnetic properties of magnetite <i>(Fe₃O₄)</i> and equations describing the magnetic forces acting on particles produced by an external cylindrical electromagnetic coil. A Eulerian–Lagrangian technique is implemented to resolve the hemodynamic flow and the motion of particles under the influence of a range of magnetic field strengths <i>(B_r = 2T, 4T, 6T, and 8T)</i>. …”
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PENGARUH PAPARAN MEDAN MAGNET EXTREMELY LOW FREQUENCY (ELF) TERHADAP MASSA JENIS TOMAT RANTI by Rosdiana Afifah Rahman, Sudarti Sudarti, Albertus Djoko Lesmono

“…The ELF magnetic field is one type of electromagnetic wave that is Non-Ionizing and has been stated in several studies in the fields of food, agriculture and so on. …”
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Conformational Selectivity of Merocyanine on Nanostructured Silver Films: Surface Enhanced Resonance Raman Scattering (SERRS) and Density Functional Theoretical (DFT) Study by Abhishek Das, Ridhima Chadha, Amaresh Mishra, Nandita Maiti, Nandita Maiti

“…The excitation wavelength dependent SERS spectrum infers that in addition to the major contribution from the electromagnetic enhancement, chemical (resonance) effect leads to the amplification of the 1540 cm−1 band. …”
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Nearshore Ship Detection in PolSAR Images by Integrating Superpixel-Level GP-PNF and Refined Polarimetric Decomposition by Shujie Wu, Wei Wang, Jie Deng, Sinong Quan, Feng Ruan, Pengcheng Guo, Hongqi Fan

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