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Stress relief by sub-harmonic vibrations: Analysis and parametrization Alívio de tensões por vibrações sub-ressonantes: Análise e parametrização
(2018)
© 2018, Universidade Federal do Rio de Janeiro. All rights reserved.The worldwide industries use the sub-resonant vibration stress relief for over twenty years. In Brazil, this technic has been used for about fifteen years. ...
The 2:3:6 quasi-periodic oscillation structure in GRS 1915+105 and cubic subharmonics in the context of relativistic discoseismology
(Monthly Notices of the Royal Astronomical Society 440:3011-3015, 2014-06-01)
We propose a simple toy model to explain the 2:3:6 quasi-periodic oscillation (QPO) structure in GRS 1915+105 and, more generally, the 2:3 QPO structure in XTE J1550−564, GRO J1655−40 and H1743−322. The model exploits the ...
The 2:3:6 quasi-periodic oscillation structure in GRS 1915+105 and cubic subharmonics in the context of relativistic discoseismology
(Monthly Notices of the Royal Astronomical Society 440:3011-3015, 2014-06-01)
We propose a simple toy model to explain the 2:3:6 quasi-periodic oscillation (QPO) structure in GRS 1915+105 and, more generally, the 2:3 QPO structure in XTE J1550−564, GRO J1655−40 and H1743−322. The model exploits the ...
A contribution for nonlinear structural dynamics characterization of cantilever beams
(2005-12-01)
Successful experiments in nonlinear vibrations have been carried out with cantilever beams under harmonic base excitation. A flexible slender cantilever has been chosen as a convenient structure to exhibit modal interactions, ...
Subharmonic stochastic synchronization and resonance in a neuronal system
(American Physical Society, 2002-10)
We study the response of a model neuron, driven simultaneously by noise and at least two weak periodic signals. We focus on signals with frequencies components kf0,(k+1)f0,…(k+n)f0 with k>1. The neuron’s output is a sequence ...
Hormonal acceleration of song development illuminates motor control mechanism in canaries
(John Wiley & Sons Inc, 2010-12)
In songbirds, the ontogeny of singing behavior shows strong parallels with human speech learning. As in humans, development of learned vocal behavior requires exposure to an acoustic model of species-typical vocalizations, ...
Nonlinear internal tidal waves in a semi-enclosed sea (Gulf of California)
(2011)
This paper studies the nonlinear transformation of the semidiurnal internal tidal waves in the northern Gulf of California, based on spectral analysis of temperature and current fluctuations from moored instruments, and ...