Results 271 to 280 of about 23,533 (297)
Some of the next articles are maybe not open access.
Mathematical model of novel wound-field synchronous motor self-excited by space harmonics
2014 International Power Electronics Conference (IPEC-Hiroshima 2014 - ECCE ASIA), 2014This paper describes mathematical modeling of a novel wound-field synchronous motor self-excited by space harmonics. The torque equation on the dq-reference frame is investigated to clarify the self-excitation mechanism of the proposed motor. It has been analytically explicated how the motor parameters give influences on the self-excited electromagnet ...
Masahiro Aoyama, Toshihiko Noguchi
openaire +1 more source
IEEE Conference Record - Abstracts. 1997 IEEE International Conference on Plasma Science, 2002
Summary form only given. A parametric excitement of surface waves (SW) on the harmonics of the cyclotron frequencies is investigated. This frequency region is used often for additional plasma heating by the HF generators. The SW on the harmonics of the cyclotron frequencies can propagate in plasma bounded by dielectric when the external magnetic field ...
V.O. Girka, V.I. Lapshin, V. Pavlenko
openaire +1 more source
Summary form only given. A parametric excitement of surface waves (SW) on the harmonics of the cyclotron frequencies is investigated. This frequency region is used often for additional plasma heating by the HF generators. The SW on the harmonics of the cyclotron frequencies can propagate in plasma bounded by dielectric when the external magnetic field ...
V.O. Girka, V.I. Lapshin, V. Pavlenko
openaire +1 more source
Excitation of harmonics by flows of the charged particles in the magnetic field
2015Results of research of the electromagnetic waves excitation by ensemble of relativistic oscillators in a magnetic field are presented. The basic attention is given to studying of generation efficiency of electromagnetic oscillations at harmonics of cyclotron frequency. It is shown, that presence of medium can essentially change efficiency of excitation
Buts, V.A. +2 more
openaire +1 more source
Theoretical analysis of novel wound-field synchronous motor self-excited by space harmonics
7th IET International Conference on Power Electronics, Machines and Drives (PEMD 2014), 2014This paper describes a theoretical analysis of a self-excited wound-field synchronous motor in which space harmonics power is utilized for field magnetization instead of permanent magnets. The operation principle of the proposed motor can be explicated by a voltage equation on the synchronous rotating reference frame.
M. Aoyama, T. Noguchi
openaire +1 more source
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
openaire +1 more source
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
openaire +1 more source
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
openaire +2 more sources
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
openaire +2 more sources
Russian Physics Journal, 1993
The energy spectrum of the highly excited states of a quantum Daffing oscillator is considered. It is shown that the energy levels satisfy En>En+1 and En → -F2/8ω2, when n → ∞, where F2 and ω are the intensity and frequency of the external field. It is suggested that this property of the spectrum is the quantum manifestation of a stochastic attractor ...
openaire +1 more source
The energy spectrum of the highly excited states of a quantum Daffing oscillator is considered. It is shown that the energy levels satisfy En>En+1 and En → -F2/8ω2, when n → ∞, where F2 and ω are the intensity and frequency of the external field. It is suggested that this property of the spectrum is the quantum manifestation of a stochastic attractor ...
openaire +1 more source
Russian Journal of Nondestructive Testing, 2004
Experimental data on the regularities of formation of a second harmonic component of the output emf of a pickup coil, which is generated during remagnetization of a steel specimen by a weak sinusoidal low-frequency exciting magnetic field accompanied by simultaneous biasing of the specimen with a DC (biasing) magnetic field, are reported. In this case,
openaire +1 more source
Experimental data on the regularities of formation of a second harmonic component of the output emf of a pickup coil, which is generated during remagnetization of a steel specimen by a weak sinusoidal low-frequency exciting magnetic field accompanied by simultaneous biasing of the specimen with a DC (biasing) magnetic field, are reported. In this case,
openaire +1 more source
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.
openaire +2 more sources
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.
openaire +2 more sources
Influence of excited states in high-order harmonic generation at intense mid-infrared field
Chinese Physics BAbstract We present a comprehensive study on the role of various excited states in high-order harmonic generation of hydrogen atoms driven by a long-wavelength (1500 nm) laser field. By numerically solving the time-dependent Schrödinger equation (TDSE) and performing a time-frequency analysis, we investigate the influence of ...
Yan 言 Fang 方 +4 more
openaire +1 more source