Results 31 to 40 of about 447,017 (293)

Emission spectrum and geometric phase in deformed Jaynes-Cummings model

Results in Physics, 2020
The emission spectrum of a qubit (two-level atom) system that interacts with a field in the framework of parity deformations is investigated in this paper.
Abeer S. Altowyan, S. Abdel-Khalek, K. Berrada   +2 more
doaj   +1 more source

Power factor correction in power delivery systems with mutipulse nonlinear loads

Известия высших учебных заведений: Проблемы энергетики, 2021
THE PURPOSE. Мutipulse rectifiers are widely used as a nonlinear loads in industrial distribution systems. The advantage of mutipulse rectifiers is low harmonic emission and high power factor.
D. E. Egorov, V. P. Dovgun, N. P. Boyarskaya, A. V. Jan, A. S. Slyusarev   +4 more
doaj   +1 more source

Harmonic emission level evaluation method of photovoltaic system based on relevant vector machine

IOP Conference Series: Materials Science and Engineering, 2020
Abstract With the increasing connecting of photovoltaic systems, the harmonic pollution in power grid is deteriorated. The evaluation of the harmonic emission levels for photovoltaic system is significant for harmonic mitigation. However, when the background harmonics are unstable, traditional evaluation methods have large calculation ...
Linghui Yang, Weiqiang Yao, Ling Pan, Jian Zhou, Ran Chen, Qian Feng, Peng Zhang, Jinshuai Zhao   +7 more
openaire   +1 more source

The X-ray spectrum of the newly discovered accreting millisecond pulsar IGR J17511-3057 [PDF]

, 2010
We report on an XMM-Newton observation of the accreting millisecond pulsar, IGR J17511-3057. Pulsations at 244.8339512(1) Hz are observed with an RMS pulsed fraction of 14.4(3)%. A precise solution for the P_orb=12487.51(2)s binary system is derived. The
A. D'Aì, A. Papitto, A. Riggio, Altamirano, Anders, Baldovin, Balucinska-Church, Basko, Bhattacharya, Boirin, Bozzo, Bradt, Brown, Burderi, Cackett, Campana, Casella, Chabrier, Cook, Cui, D'Aì, D'Aì, E. Bozzo, Fabian, Falanga, Falanga, Falanga, Ford, Frank, Galloway, Galloway, Galloway, Galloway, Gierliński, Gierliński, Gierliński, Grebenev, Hartman, Iaria, Jahoda, Kallman, Kuulkers, L. Burderi, Leahy, Lewin, Lightman, M. T. Menna, Madej, Magdziarz, Markwardt, Markwardt, Markwardt, Nowak, Paczyński, Pandharipande, Papitto, Papitto, Papitto, Patruno, Patruno, Podsiadlowski, Poutanen, Poutanen, Poutanen, Poutanen, Protassov, Pylyser, R. Iaria, Riggio, Riggio, Ritter, Rothschild, Rybicki, Shimura, Stewart, Sunyaev, T. Di Salvo, Van Paradijs, Wallace, Watts, Watts, Weinberg, Wijnands, Yan, Zdziarski, Życki   +85 more
core   +3 more sources

Efficient single photon absorption by a trapped moving atom

, 2016
The influence of the center of mass motion of a trapped two level system on efficient resonant single photon absorption is investigated. It is shown that this absorption process depends strongly on the ratio between the characteristic time scales of ...
Alber, Gernot, Leuchs, Gerd, Trautmann, Nils   +2 more
core   +1 more source

Self-induced transparency in a perfectly absorbing chiral second-harmonic generator

PhotoniX, 2022
Transparency and perfect absorption are two contradictory terms; a perfect absorber never permits waves to transmit through. However, this statement only remains true in the linear regime, where the nonlinearity has been omitted and the physical system ...
Jiankun Hou, Jintian Lin, Jiefu Zhu, Guolin Zhao, Yao Chen, Fangxing Zhang, Yuanlin Zheng, Xianfeng Chen, Ya Cheng, Li Ge, Wenjie Wan   +10 more
doaj   +1 more source

Comparative Analysis of Definitions for the Harmonic Emission Levels

RE&PQJ
To keep a high level of power quality, Distribution System Operators (DSOs) must keep harmonic voltage levels under limits specified in standards. These harmonic voltages are due to non-linear equipment connected inside installations, which inject harmonic currents into public networks.
Denoel, Julien, Petit, Marc, Le, Trung Dung   +2 more
openaire   +1 more source

Peer-to-Peer-Based Power Flow Control in Microgrids With Limited Voltage Harmonic Distortion

IEEE Access, 2023
This paper proposes a novel primary level controller and coupling LCL filter design methodology for microgrid prosumer units The so-called decentralized peer-to-peer-based power flow control algorithm introduces a power exchange communication link ...
Stevan Grabic, Marko Vekic, Milan Rapaic, Ivana Isakov, Vlado Porobic   +4 more
doaj   +1 more source

Impacts of three‐phase power converter operating modes on harmonic emissions in distribution networks: harmonics emission within 2–9 kHz

IET Power Electronics, 2020
The increasing penetration level of power electronic converters in distribution networks has raised concerns about the impact of these converters on the power quality of the grid.
J. Yaghoobi, Firuz Zare
semanticscholar   +1 more source

Generation of powerful terahertz emission in a beam-driven strong plasma turbulence

, 2012
Generation of terahertz electromagnetic radiation due to coalescence of upper-hybrid waves in the long-wavelength region of strong plasma turbulence driven by a high-current relativistic electron beam in a magnetized plasma is investigated.
A V Arzhannikov, Arzhannikov A V, Arzhannikov A V, I V Timofeev, Kruchina E N, Vyacheslavov L N   +5 more
core   +1 more source