Results 1 to 10 of about 571 (119)

Resonant Forcing of the Climate System in Subharmonic Modes

open access: yesJournal 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
doaj   +3 more sources

Multiaxial Fatigue Analysis of Connecting Bolt at High-Speed Train Axle Box under Structural Subharmonic Resonance [PDF]

open access: yesSensors, 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
doaj   +2 more sources

Nonlinear modal evolution of microbubbles confined by rigid capillary constraint [PDF]

open access: yesUltrasonics Sonochemistry
The 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
doaj   +2 more sources

Resonantly Forced Baroclinic Waves in the Oceans: Subharmonic Modes

open access: yesJournal 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
doaj   +3 more sources

Dancing Electrohydrodynamic Tip Streaming Modulated by Faraday Instability [PDF]

open access: yesAdvanced Science
Tip 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
doaj   +2 more sources

A dual-mode dual-stator hybrid rotor synchronous and vernier machine for variable speed applications [PDF]

open access: yesScientific Reports
This paper presents the design and electromagnetic performance evaluation of a Dual-Mode Dual-Stator Hybrid-Rotor Synchronous and Vernier Machine (DMDS-HRSVM) developed for automatic washing-machine applications.
Sajad Ali   +3 more
doaj   +2 more sources

Data-driven modeling of subharmonic forced response due to nonlinear resonance [PDF]

open access: yesScientific Reports
Complex behavior in nonlinear dynamical systems often arises from resonances, which enable intricate energy transfer mechanisms among modes that otherwise would not interact.
Joar Axås   +3 more
doaj   +2 more sources

Modulated Response of Subtropical Gyres: Positive Feedback Loop, Subharmonic Modes, Resonant Solar and Orbital Forcing

open access: yesJournal 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
doaj   +3 more sources

Ultrafast-induced coherent acoustic phonons in the two-dimensional magnet CrSBr [PDF]

open access: yesStructural Dynamics
Magnetism in two-dimensional (2D) van der Waals (vdW) crystals offers promising new directions for low-dimensional physics and devices. In this work, mega-electron volt (MeV) ultrafast electron diffraction was employed to investigate the ultrafast atomic
Jayajeewana N. Ranhili   +15 more
doaj   +2 more sources

Asymmetry- and Viscosity-Regulated Atomization of Laminar Impinging Microjets: Morphology Map, Modal Dynamics, and Droplet Statistics [PDF]

open access: yesMicromachines
Despite decades of studies on symmetric impinging-jet atomization, the combined role of controlled pre-impingement asymmetry and viscosity in setting the instability pathways and droplet statistics of laminar microjets remains insufficiently quantified ...
Xiaoyu Tan   +3 more
doaj   +2 more sources

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