Results 21 to 30 of about 615,708 (338)

Study on detection method of power frequency magnetic field disturbance signal for underwater target

Journal of Hebei University of Science and Technology, 2021
A hybrid neural network and attention mechanism (Att-CNN-GRU) is presented to solve the problems of fast attenuation,strong interference,ambiguous disturbance characteristics and ineffective signal detection in magnetic field proximity detection of ...
Bin TIAN, Shiqiang WEN, Tong HU, Bing LIANG, Hanyu HONG   +4 more
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Frequency dependence of magnetothermal properties for magnetic fluid and magnetically functionalized implants

EPJ Web of Conferences, 2018
Heating of the magnetic nanoparticles in AC magnetic field is the effect promising for application in medicine. The mechanisms of heating in AC-magnetic field implies nontrivial dependence of the power dissipated by magnetic nanoparticles on frequency ...
Salakhova R.T., Vylegzhanin A. G., Kashtanov E.A., Zverev V.I., Müller R., de Sena Pereira F.D., Parfenov V.A., Mironov V.A. V.A., Kritskaya E.A., Pyatakov A.P., Markov V.K., Malyshev A.Yu, Kamilov K.I, Tishin A.M   +13 more
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Impact of the voltage and frequency of a pulse signal applied to a toroidal coil on near magnetic field measurements [PDF]

Serbian Journal of Electrical Engineering, 2023
In power electronic systems, electromagnetic radiation of the near field is detrimental because it generates electromagnetic interference in static converters ultimately leading to the degradation of the EMC filter performance.
Zeghoudi Abdelhakim, Bendaoud Abdelber, Bechekir Seyf Eddine   +2 more
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On the origin of the 1/f spectrum in the solar wind magnetic field [PDF]

, 2012
We present a mechanism for the formation of the low frequency 1/f magnetic spectrum based on numerical solutions of a shell reduced-MHD model of the turbulent dynamics inside the sub-Alfv\'enic solar wind.
Bruno, Close, Denskat, Giuliani, Matthaeus, Roberts, van Ballegooijen, Velli, Verdini, Verdini   +9 more
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Analysis of the Extremely Low Frequency Magnetic Field Emission from Laptop Computers

Metrology and Measurement Systems, 2016
This study addresses the problem of magnetic field emission produced by the laptop computers. Although, the magnetic field is spread over the entire frequency spectrum, the most dangerous part of it to the laptop users is the frequency range from 50 to ...
Brodić Darko
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Analysis for magnetic field disturbance of modular multilevel converter based high voltage direct current (MMC‐HVDC) converter valve

High Voltage, 2023
The standardised design and operational reliability enhancement of the flexible DC converter valve are impending with the construction of high shares of renewables and power electronics power system.
Lei Qi, Muxue Wang, Xiangyu Zhang, Hong Shen, Hongyu Wang, Chongqing Jiao   +5 more
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Transverse quasilinear relaxation in inhomogeneous magnetic field [PDF]

, 1998
Transverse quasilinear relaxation of the cyclotron-Cherenkov instability in the inhomogeneous magnetic field of pulsar magnetospheres is considered. We find quasilinear states in which the kinetic cyclotron-Cherenkov instability of a beam propagating ...
A. Z. Kazbegi, D. R. Lorimer, D. V. Sivukhin, J. Arons, J. G. Lominadze, J. G. Lominadze, K. Kawamura, M. Kramer, Maxim Lyutikov, V. L. Ginzburg   +9 more
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Geomagnetically Induced Currents and Harmonic Distortion: High Time Resolution Case Studies

Space Weather, 2020
High time resolution (1–5 s) magnetometer, geomagnetically induced current (GIC), and mains harmonic distortion data from the Halfway Bush substation in Dunedin, New Zealand, are analyzed.
Mark A. Clilverd, Craig J. Rodger, James B. Brundell, Michael Dalzell, Ian Martin, Daniel H. Mac Manus, Neil R. Thomson   +6 more
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A frequency-adjustable electromagnet for hyperthermia measurements on magnetic nanoparticles

, 2008
We describe a low-cost and simple setup for hyperthermia measurements on colloidal solutions of magnetic nanoparticles (ferrofluids) with a frequency-adjustable magnetic field in the range 5-500 kHz produced by an electromagnet. By optimizing the general
Hergt, J. Carrey, L.-M. Lacroix, M. Respaud, Skumiel, Zeisberger   +5 more
core   +3 more sources

The magnetic field near power lines in the Moscow region: the results of measurements and their analyze [PDF]

Саратовский научно-медицинский журнал, 2014
The aim: to analyze the real power frequency magnetic field (50 Hz) values near power lines. The material. Long-term measurements of the power frequency magnetic field (50 Hz) near power lines of 110 kV, 220 kVand 500 kVin the Moscow region.
Prokofyeva A.S., Grigoriev O.A.
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