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24481
Review of Technical Design and Safety Requirements for Vehicle Chargers and Their Infrastructure According to National Swedish and Harmonized European Standards
Published 2021-06-01“…Furthermore, a comprehensive overview of the required safety measures, such as the application of an isolation transformer or the implementation of an overvoltage protection mechanism, and the limits for conducted electromagnetic emissions, such as low-frequency harmonics or high-frequency (150 kHz to 108 MHz) emissions, are given.…”
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24482
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24483
Developing multi-sensor drones for geological mapping and mineral exploration: setup and first results from the MULSEDRO project
Published 2019-07-01“…Hyperspectral imaging (HSI) is a powerful exploration and mapping technique in areas where the rock surface is well-exposed, and where geological units and mineral compositions can be estimated from spectral features of the electromagnetic spectrum in the visual and infrared range. …”
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24484
Therapeutic Effects of a Newly Developed 3D Magnetic Finger Rehabilitation Device in Subacute Stroke Patients: A Pilot Study
Published 2022-01-01“…An end-effector type rehabilitation device that can generate magnetic fields in three directions was developed using electromagnets and permanent magnetics. A double-blinded randomized controlled pilot study was conducted with a total of 12 patients. …”
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24485
Impacts of Lightning-Induced Overvoltage on a Hybrid Solar PV–Battery Energy Storage System
Published 2021-04-01Get full text
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24486
Multi-Polarisation C-Band SAR Imagery to Estimate the Recent Dynamics of the d’Iberville Glacier
Published 2022-11-01“…The data set consists of a time series of 10 synthetic aperture radar data collected from 2010 to 2022 in dual-polarimetric imaging mode, where a horizontally polarised electromagnetic wave was transmitted. An automatic approach based on a global threshold constant false alarm rate method is applied to the single- and dual-polarisation features, namely the HH-polarised normalised radar cross-section and a combination of the HH- and HV-polarised scattering amplitudes, with the aim of extracting the ice front of the glacier and, therefore, estimating its behaviour over time. …”
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24487
Effect of field strength on RF power deposition near conductive leads: A simulation study of SAR in DBS lead models during MRI at 1.5 T-10.5 T.
Published 2023-01-01“…<h4>Methods</h4>We created 33 unique DBS lead models based on postoperative computed tomography (CT) images of patients with implanted DBS devices and performed electromagnetic simulations to evaluate the SAR of RF energy in the tissue surrounding lead tips during RF exposure at frequencies ranging from 64 MHz (1.5 T) to 447 MHz (10.5 T). …”
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24488
A High-Sensitivity Dual-Axis Accelerometer with Two FP Cavities Assembled on Single Optical Fiber
Published 2022-12-01“…The proposed fiber optic dual-axis FP accelerometer has high sensitivity and strong immunity to electromagnetic interference. The size of the sensor mainly depends on the size of the prism, which is easy to reduce and mass produce. …”
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24489
A Val66Met polymorphism is associated with weaker somatosensory cortical activity in individuals with cerebral palsy
Published 2022-09-01“…Standardized low resolution brain electromagnetic tomography (sLORETA) was used to image the somatosensory cortical activity evoked by stimulation of the tibial nerve. …”
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24490
An Efficient Numerical Formulation for Wave Propagation in Magnetized Plasma Using PITD Method
Published 2020-09-01“…According to the numerical dispersion analysis, the range of the relative error in this method is <inline-formula><math display="inline"><semantics><mrow><msup><mrow><mn>10</mn></mrow><mrow><mo>−</mo><mn>6</mn></mrow></msup></mrow></semantics></math></inline-formula> to <inline-formula><math display="inline"><semantics><mrow><mn>5</mn><mo>×</mo><msup><mrow><mn>10</mn></mrow><mrow><mo>−</mo><mn>4</mn></mrow></msup></mrow></semantics></math></inline-formula> when the electromagnetic wave frequency is from 1 GHz to 100 GHz. …”
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24491
Near-Field Chipless Radio-Frequency Identification (RFID) Sensing and Identification System with Switching Reading
Published 2018-04-01“…Thus, in a reading operation, as long as the tag is very close to the reader, the SRRs of the tag modify (decrease) the transmission coefficient of the corresponding reader line (through electromagnetic coupling between both SRRs), and the amplitude of the output signal is severely reduced. …”
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24492
Protective Properties of Botanical Extracts against 5G Radiation-induced Damage to Human Skin, as Demonstrated in Preliminary Data from a Keratinocyte Cell Culture Model
Published 2024-01-01“…The range is also shorter, needing more numerous emitters, closer to the user—resulting in higher electromagnetic energy exposure. With no universal consensus regarding exposure risks, there is some concern among the public and the scientific community, following indications that 5G radiation can impact immune function, trigger inflammatory responses, and influence expression of genes affecting protein folding, oxidative stress, tissue/extracellular matrix (ECM) matrix turnover, and more. …”
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24493
Demodulation of EM Telemetry Data Using Fuzzy Wavelet Neural Network with Logistic Response
Published 2021-11-01“…The proposed model can be used for analyzing signals with a signal-to-noise ratio lower than 1 dB effectively, which plays an important role in the electromagnetic telemetry system.…”
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24494
Device and Methods for Measuring of Acoustic Anisotropy and the Residual Stress in the Main Gas Pipelines’ Metal
Published 2019-03-01“…The aim of the work is to develop methods for acoustic assessment of the stress-strain state, the elastic moduli and the properties anisotropy of pipeline material and to study these characteristics in different sections of main pipelines using a device based on contactless EMA transducers.Methods are implemented using specialized equipment (the structurescope SEMA) and non-contact electromagnetic acoustic transducers. As an object of research, we used fragments – the cuttings of gas pipelines with circumferential welds both after fabrication and removed from service with stress corrosion cracking, including ones with corrosion damage and without visible damage.The method of determining the plane stress-strain state of pipeline elements is based on the phenomenon of acoustoelasticity – the dependence of the propagation velocity of ultrasonic waves on mechanical stresses. …”
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24495
Buried object characterization by data-driven surrogates and regression-enabled hyperbolic signature extraction
Published 2023-04-01“…Abstract This work addresses artificial-intelligence-based buried object characterization using FDTD-based electromagnetic simulation toolbox of a Ground Penetrating Radar (GPR) to generate B-scan data. …”
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24496
Saturation sensitivity and influencing factors of marine DC resistivity inversion to submarine gas hydrate
Published 2022-08-01Get full text
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24497
Study of SARS-CoV-2 Spike Protein Wild-Type and the Variants of Concern Real-Time Interactions with Monoclonal Antibodies and Convalescent Human Serum
Published 2023-08-01“…Moreover, we combined two distinct, label-free measurement techniques: one based on changes in surface electromagnetic waves after reflection from the surface, and the other on changes in acoustic waves. …”
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24498
EMTP IMPLEMENTATION OF A MONTE CARLO METHOD FOR LIGHTNING PERFORMANCE ANALYSIS OF TRANSMISSION LINES IMPLANTACIÓN EN EMTP DE UN PROCEDIMIENTO BASADO EN EL MÉTODO DE MONTE CARLO PAR...
Published 2008-06-01“…Este artículo presenta un resumen del trabajo realizado por los autores para desarrollar e implantar en una herramienta de simulación tipo EMTP (ElectroMagnetic Transients Program) un procedimiento basado en el método de Monte Carlo que permita analizar el comportamiento frente al rayo de líneas aéreas de transmisión. …”
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24499
Evolución hacia la cerámica fotovoltaica
Published 2011-02-01“…Advanced ceramics are characterized by a wide variety of materials with specific physical and chemical responses to radiation and electromagnetic fields, where major economic benefits are mainly related to secondary human needs such as telecommunications. …”
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24500
MRI of Implantation Sites Using Parallel Transmission of an Optimized Radiofrequency Excitation Vector
Published 2023-03-01“…This study examines the applicability of safe and <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><msubsup><mi>B</mi><mn>1</mn><mo>+</mo></msubsup></mrow></semantics></math></inline-formula>-distortion-free MRI of implantation sites using optimized parallel RF field transmission (pTx) based on a multi-objective genetic algorithm (GA). Electromagnetic field simulations were performed for eight eight-channel RF array configurations (<i>f</i> = 297.2 MHz), and the most efficient array was manufactured for phantom experiments at 7.0 T. …”
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