Results 11 to 20 of about 2,379,299 (345)
Journal of Fluid Mechanics, 2021 We investigate the steady-state harmonic resonance of periodic interfacial gravity waves in a two-layer fluid with free surface. Two independent ‘external’ and ‘internal’ modes with separate linear dispersion relationships exist for this two-layer fluid.
Jiyang Li +3 more
semanticscholar +1 more source
AIP Advances, 2023 In recent years, with the use of electric drilling rig, electric fracturing pump, and other equipment, the harmonic resonance problem of oilfield power grid is becoming more and more serious.
Na Liu, Bin Zhang
doaj +1 more source
Harmonic Model of Static Var Generator and Analysis of Its Resonance Influence
Zhongguo dianli, 2022 Static var generators (SVGs) are widely used in photovoltaic (PV) stations because of their fast response speed and wide regulation range, which can meet such needs of the system as dynamic reactive power compensation.
Ke LIU +9 more
doaj +1 more source
Zhejiang dianli, 2023 Grid-connected offshore wind farms are likely to cause harmonic resonances in the power system that jeopardize the safe operation of the power grid. To this end， the impact of grid-connected offshore wind farms on the transient overvoltage and harmonic ...
XU Qunwei +6 more
doaj +1 more source
Energy Conversion and Economics, 2022 Renewable energy is a key solution to address the challenges of energy shortages and climate change. Consequently, high‐renewable‐energy‐penetrated power systems (HREPPS) have become a popular trend.
Yang Wang +5 more
doaj +1 more source
Zhongguo dianli, 2022 The voltage source converter is prone to negative damping in the high-frequency harmonic band, thus causing resonance phenomena. The Kun-Liu-Long DC project, as a UHV multi-terminal hybrid DC transmission project, needs to evaluate and analyse the high ...
Panteng XU +5 more
doaj +1 more source
Subharmonic transitions and Bloch-Siegert shift in electrically driven spin resonance [PDF]
, 2015 We theoretically study coherent subharmonic (multi-photon) transitions of a harmonically driven spin. We consider two cases: magnetic resonance (MR) with a misaligned, i.e., non-transversal driving field, and electrically driven spin resonance (EDSR) of ...
Burkard, Guido +2 more
core +2 more sources
Periodic oscillators, isochronous centers and resonance [PDF]
, 2018 An oscillator is called isochronous if all motions have a common period. When the system is forced by a time-dependent perturbation with the same period the dynamics may change and the phenomenon of resonance can appear.
Ortega, Rafael, Rojas, David
core +2 more sources
High-Order Harmonics Generation in Selenium-Containing Plasmas
Photonics, 2023 The studies of the high-order harmonics generated in Se-containing plasmas are reported. The ablation of selenium in a vacuum allowed for the formation of a plasma demonstrating high-order harmonics generation and resonance enhancement of the harmonic at
Rashid A. Ganeev
doaj +1 more source
Energy-Dependent Harmonic Ratios of the Cyclotron Features of X0331+53 in the 2004-2005 Outburst [PDF]
, 2010 We report on changes of the cyclotron resonance energies of the recurrent transient pulsar, X0331+53 (V0332+53). The whole RXTE data acquired in the 2004-2005 outburst were utilized.
Araya +29 more
core +1 more source