Results 1 to 10 of about 623 (160)
Resonant Forcing of the Climate System in Subharmonic Modes [PDF]
Journal of Marine Science and Engineering, 2020 During recent decades observation of climate archives has raised several questions. Concerning the mid-Pleistocene transition problem, conflicting sets of hypotheses highlight either the role of ice sheets or atmospheric carbon dioxide in causing the ...
Jean-Louis Pinault
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Resonantly Forced Baroclinic Waves in the Oceans: Subharmonic Modes [PDF]
Journal of Marine Science and Engineering, 2018 The study of resonantly forced baroclinic waves in the tropical oceans at mid-latitudes is of paramount importance to advancing our knowledge in fields that investigate the El Niño–Southern Oscillation (ENSO), the decadal climate variability,
Jean-Louis Pinault
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Multiaxial Fatigue Analysis of Connecting Bolt at High-Speed Train Axle Box under Structural Subharmonic Resonance [PDF]
Sensors, 2023 Based on the dynamic characteristics of the axle box front cover of high-speed trains in the subharmonic resonance state, the nonlinear single-degree-of-freedom (SDOF) model was proved to be reasonable, and reasons for the ineffectiveness of the common ...
Yaqin Feng +3 more
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Nonlinear modal evolution of microbubbles confined by rigid capillary constraint [PDF]
Ultrasonics SonochemistryThe nonlinear modal evolution of confined bubbles was investigated by applying modulated acoustic pressure in capillaries. Within a modulation envelope of the pressure, the bubble undergoes a morphological evolution cycle, including spherical oscillation,
Xiuru Li +10 more
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Unitary Subharmonic Response and Floquet Majorana Modes [PDF]
Physical Review Letters, 2020 Detection and manipulation of excitations with non-Abelian statistics, such as Majorana fermions, are essential for creating topological quantum computers. To this end, we show the connection between the existence of such localized particles and the phenomenon of unitary subharmonic response (SR) in periodically driven systems.
Ramis Movassagh, Oles Shtanko
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Generation of Localized Modes in an Electrical Lattice Using Subharmonic Driving [PDF]
Physical Review Letters, 2012 We show experimentally and numerically that an intrinsic localized mode (ILM) can be stably produced (and experimentally observed) via subharmonic, spatially homogeneous driving in the context of a nonlinear electrical lattice. The precise nonlinear spatial response of the system has been seen to depend on the relative location in frequency between the
Panayotis Kevrekidis +2 more
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Subharmonic spherical bubble oscillations induced by parametric surface modes [PDF]
Physical Review E, 2020 A potential source of subharmonic bubble emissions is revealed experimentally by high-speed imaging. When an acoustic bubble is driven at sufficiently large pressure amplitudes, energy transfer from surface to volume oscillations can lead to the triggering of subharmonic spherical oscillations.
Inserra Claude +2 more
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Combining Subharmonic and Ultraharmonic Modes for Intravascular Ultrasound Imaging: A Preliminary Evaluation [PDF]
Ultrasound in Medicine and Biology, 2017 Contrast-enhanced intra-vascular ultrasound (CE-IVUS) imaging could provide clinicians a valuable tool to assess cardiovascular risk and guide the choice of therapeutic strategies. In this technical note, we evaluated the feasibility of combining subharmonic and ultraharmonic imaging to improve the performance of CE-IVUS.
Himanshu Shekhar, Marvin M Doyley
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Dancing Electrohydrodynamic Tip Streaming Modulated by Faraday Instability [PDF]
Advanced ScienceTip streaming enables flow transitions from the millimeter scale to the microscale and even nanoscale, generating tiny droplets with broad applications in precision 3D printing, nanomaterial fabrication, and drug delivery.
Qiyou Liu +6 more
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Journal of Marine Science and Engineering, 2018 Evidence of long-term variability in the upper ocean has emerged for two decades. Most of the issues discussed raise a lot of questions. What is the driver of the decadal oscillation of rainfall in Europe that has been observed since the end of the 20th ...
Jean-Louis Pinault
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