Results 11 to 20 of about 34,963 (304)
Bosonization on a lattice: The emergence of the higher harmonics [PDF]
Physical Review B, 1995 A general and transparent procedure to bosonize fermions placed on a lattice is presented. Harmonics higher than $k_F$ are shown to appear in the one-paticle Green function, due to the compact character of real electron bands. Quantitative estimations of the role of these higher harmonics are made possible by the bosonization technique presented here.
Ferrer, J. +3 more
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Superresonant Radiation Stimulated by Higher Harmonics [PDF]
Physical Review Letters, 2017 Solitons propagating in media with higher order dispersion will shed radiation known as dispersive wave or resonant radiation, with applications in frequency broadening, deep UV sources for spectroscopy or simply fundamental studies of soliton physics. Starting from a recently proposed equation that models the behaviour of ultrashort optical pulses in ...
Lourés, Cristian Redondo +3 more
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Calculation of the mode of higher harmonics in electrical networks of plywood production
Омский научный вестникThe trouble-free operation of the power supply system elements of plywood production largely depends on maintaining the required quality of electric energy.
A. K. Toropova, V. V. Cherepanov
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Methodology for Asynchronous Motor Impedance Measurement by Using Higher Order Harmonics
Energies, 2020 The control methods of asynchronous motors have changed during past decades. In the past, asynchronous motors were connected to grid directly. Later, thyristors as switching element-based frequency converters for asynchronous motors have appeared. Today,
Karolis Dambrauskas +4 more
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Irregular Orbits Generate Higher Harmonics [PDF]
Physical Review Letters, 1999 The spectrum of higher harmonics in atoms calculated with a uniformized semiclassical propagator is presented and it is shown that higher harmonic generation is an interference phenomenon which can be described semiclassically. This can be concluded from the good agreement with the quantum spectrum.
van de Sand, G., Rost, J.
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The Performance of the High-Current Transformer during Operation in the Wide Frequencies Range
Energies, 2022 This paper presents the performance of the 26 kVA inductive high-current transformer (HCT) during operation in the frequencies range of transformed harmonics from 50 Hz to 5 kHz.
Michal Kaczmarek +2 more
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Optimal location and sizing of capacitor banks in distribution networks to reduce harmonic distortion and improve voltage profile using genetic algorithm [PDF]
Tehnika, 2017 This paper considers the problem of determination of optimum locations and sizes of capacitor banks (CB) for reactive power compensation in distribution systems to reduce harmonic distortion and improve voltage profile.
Milovanović Miloš J. +2 more
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IEEE Access, 2021 The paper describes problem of isolating, evaluating and eliminating interharmonics of current using the example of the operation of an asynchronous electric motor operating at a variable periodic load. The complexity of the problem lies in the fact that
Boris A. Avdeev +4 more
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Записки Горного института, 2021 The urgency and necessity of choosing and justifying the structures of hybrid filter-compensating devices based on series and parallel active filters to improve the quality of electricity in the power supply systems of enterprises of the mineral resource
Yurii A. Sychev, Roman Yu. Zimin
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Higher spins in harmonic superspace
Theoretical and Mathematical Physics, 2023 20 pages, Contribution to the Proceedings of the Academician A.A. Slavnov Memorial Conference (Moscow, December 21 - 22, 202), to be published in "Theor. Math.
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