Results 21 to 30 of about 740,547 (334)
Electromagnetic fields in jets [PDF]
Monthly Notices of the Royal Astronomical Society, 2007 8 pages, 5 figures.
Donald Lynden-Bell, Blake D. Sherwin
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Transmitters for Combined Radio Over a Fiber and Outdoor Millimeter-Wave System at 25 GHz
IEEE Photonics Journal, 2020 In the modern wireless networks, millimeter-wave radio-frequency (RF) bands are becoming more attractive as they provide larger bandwidth and higher data rates than the today-used systems operating at frequencies below 6 GHz.
Jan Bohata +4 more
doaj +1 more source
Quantum scalar field in FRW Universe with constant electromagnetic background [PDF]
, 1997 We discuss massive scalar field with conformal coupling in Friedmann-Robertson-Walker (FRW) Universe of special type with constant electromagnetic field. Treating an external gravitational-electromagnetic background exactly, at first time the proper-time
Coleman S. +13 more
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Constraints of Using Conductive Screen-Printing for Chipless RFID Tags with Enhanced RCS Response
Applied Sciences, 2022 The analysis and experimental verification of the properties of four types of chipless RFID tags with an increased RCS response level designed and fabricated by conductive screen-printing using silver paste on foil and paper substrates was performed. The
Milan Svanda, Jan Machac, Milan Polivka
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ELECTROMAGNETIC FIELDS ON FRACTALS [PDF]
Modern Physics Letters A, 2006 Fractals are measurable metric sets with non-integer Hausdorff dimensions. If electric and magnetic fields are defined on fractal and do not exist outside of fractal in Euclidean space, then we can use the fractional generalization of the integral Maxwell equations. The fractional integrals are considered as approximations of integrals on fractals. We
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Sleep EEG-Based Approach to Detect Mild Cognitive Impairment
Frontiers in Aging Neuroscience, 2022 Mild Cognitive Impairment (MCI) is an early stage of dementia, which may lead to Alzheimer’s disease (AD) in older adults. Therefore, early detection of MCI and implementation of treatment and intervention can effectively slow down or even inhibit the ...
Duyan Geng +6 more
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Controlling Electromagnetic Fields
Science, 2006 Using the freedom of design that metamaterials provide, we show how electromagnetic fields can be redirected at will and propose a design strategy. The conserved fields—electric displacement field D , magnetic induction field B , and Poynting vector B —are all ...
John B. Pendry +2 more
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High frequency characterization of Galfenol minor flux density loops
AIP Advances, 2017 This paper presents the first measurement of ring-shaped Galfenol’s high frequency-dependent minor flux density loops. The frequencies of applied AC magnetic field are 1k, 5k, 10k, 50k, 100k, 200k, 300k, 500 kHz. The measurements show that the cycle area
Ling Weng +4 more
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On rational electromagnetic fields [PDF]
Physics Letters A, 2020 We employ a recently developed method for constructing rational electromagnetic field configurations in Minkowski space to investigate several properties of these source-free finite-action Maxwell ("knot") solutions. The construction takes place on the Penrose diagram but uses features of de Sitter space, in particular its isometry group. This admits a
Kaushlendra Kumar, Olaf Lechtenfeld
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Mechanical-magnetic-electric coupled behaviors for stress-driven Terfenol-D energy harvester
AIP Advances, 2017 The stress-driven Terfernol-D energy harvester exhibits the nonlinear mechanical-magnetic-electric coupled (MMEC) behaviors and the eddy current effects.
Shuying Cao +7 more
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