Results 271 to 280 of about 280,256 (316)
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Physical Review A, 2015
Electron dynamics excited by an optical near field (ONF) in a two-dimensional quantum dot model was investigated by solving a time-dependent Schr\"odinger equation. It was found that the ONF excitation of the electron caused two characteristic phenomena: a two-photon absorption and an induction of a magnetic dipole moment with a strong third-harmonic ...
Maiku Yamaguchi +2 more
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Electron dynamics excited by an optical near field (ONF) in a two-dimensional quantum dot model was investigated by solving a time-dependent Schr\"odinger equation. It was found that the ONF excitation of the electron caused two characteristic phenomena: a two-photon absorption and an induction of a magnetic dipole moment with a strong third-harmonic ...
Maiku Yamaguchi +2 more
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2017 IEEE Applied Power Electronics Conference and Exposition (APEC), 2017
This paper describes a permanent-magnet-free synchronous motor where space harmonic power is utilized for the field magnetization instead of permanent magnets. The stator has a three-phase concentrated winding structure, and the rotor has two types of windings, i.e., an induction coil that retrieves mainly the second space harmonic and a field coil for
Masahiro Aoyama, Toshihiko Noguchi
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This paper describes a permanent-magnet-free synchronous motor where space harmonic power is utilized for the field magnetization instead of permanent magnets. The stator has a three-phase concentrated winding structure, and the rotor has two types of windings, i.e., an induction coil that retrieves mainly the second space harmonic and a field coil for
Masahiro Aoyama, Toshihiko Noguchi
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Enhanced high-harmonic generation from an all-dielectric metasurface
Nature Physics, 2017The recent observation of high-harmonic generation from solids creates a new possibility for engineering fundamental strong-field processes by patterning the solid target with subwavelength nanostructures.
Hanzhe Liu +9 more
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IEEE Transactions on Transportation Electrification
Hybrid-excited Vernier reluctance machine (HEVRM) with dc field excitation and subslot bottom permanent magnet (PM) is attractive for electric vehicle (EV) application in electrification transportation due to its high torque density and excellent flux ...
Jifu Jiang, S. Niu, Xiaodong Zhang
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Hybrid-excited Vernier reluctance machine (HEVRM) with dc field excitation and subslot bottom permanent magnet (PM) is attractive for electric vehicle (EV) application in electrification transportation due to its high torque density and excellent flux ...
Jifu Jiang, S. Niu, Xiaodong Zhang
semanticscholar +1 more source
IEEE Transactions on Magnetics, 2012
This paper presents multi-domain topology optimization using a current-carrying coil and a ferromagnetic material in order to focus the pulsed magnetic field (PMF) onto a target area. The multi-domain design sensitivities in the harmonic magnetic field are calculated using the adjoint variable method (AVM).
Jangwon Lee, Junghwan Kook, Semyung Wang
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This paper presents multi-domain topology optimization using a current-carrying coil and a ferromagnetic material in order to focus the pulsed magnetic field (PMF) onto a target area. The multi-domain design sensitivities in the harmonic magnetic field are calculated using the adjoint variable method (AVM).
Jangwon Lee, Junghwan Kook, Semyung Wang
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The theory of the harmonically resonant cavity with a self-excited multiple frequency field
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 1991Abstract Usually a harmonically resonant cavity is excited by two different wavelength microwave power sources [C.E. Hess, H.A. Schwettman and T.I. Smith, IEEE Trans. Nucl. Sci. NS-32 (1985) 2924]. According to the theory of interaction of the beam with the cavity [P.B. Wilson, AIP Conf. Proc. no.
Zhao Zhentang +3 more
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Investigation of Variable Field Harmonic Principle in Hybrid-Excited Switched-Flux Machine
2022 International Power Electronics Conference (IPEC-Himeji 2022- ECCE Asia), 2022Hui Yang +6 more
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IEEE International Digest of Technical Papers on Magnetics Conference, 2003
Summary form only given. In this paper a simple approach to predict the power losses into a ferromagnetic nucleus when it is excited by a distorted field, H(t) is presented. The aim is also to investigate on the contribute to the losses of each harmonic of the imposed magnetic field.
C. COLTELLI, SALVINI, Alessandro
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Summary form only given. In this paper a simple approach to predict the power losses into a ferromagnetic nucleus when it is excited by a distorted field, H(t) is presented. The aim is also to investigate on the contribute to the losses of each harmonic of the imposed magnetic field.
C. COLTELLI, SALVINI, Alessandro
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Physical Review A, 1993
We study the quantum dynamics of a Morse oscillator under an intense field with three different frequencies: (1) one much higher than the dissociation energy from an excited state, (2) one resonant with the dissociation energy from an excited state, and (3) an intermediate one.
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We study the quantum dynamics of a Morse oscillator under an intense field with three different frequencies: (1) one much higher than the dissociation energy from an excited state, (2) one resonant with the dissociation energy from an excited state, and (3) an intermediate one.
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