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Parametric resonance brain model [PDF]

open access: yesScientific Reports
The paper introduces a parametric resonance model for characterizing some features of the brain’s electrical activity. This activity is assumed to be a fundamental aspect of brain functionality underpinning functions from basic sensory processing to ...
Salvatore Magazù, Maria Teresa Caccamo
doaj   +4 more sources

Quantum parametric resonance [PDF]

open access: yesJournal of Physics A: Mathematical and General, 2001
The quantum mechanical equivalent of parametric resonance is studied. A simple model of a periodically kicked harmonic oscillator is introduced which can be solved exactly.
Weigert, S.
core   +4 more sources

Opto-thermally excited multimode parametric resonance in graphene membranes [PDF]

open access: yesScientific Reports, 2018
In the field of nanomechanics, parametric excitations are of interest since they can greatly enhance sensing capabilities and eliminate cross-talk. Above a certain threshold of the parametric pump, the mechanical resonator can be brought into parametric ...
Robin J. Dolleman   +5 more
doaj   +2 more sources

Roton Parametric Resonance [PDF]

open access: yesJournal of Low Temperature Physics, 2012
Parametric excitation of rotons by oscillating electric field exhibits a narrow resonance at the roton minimum frequency. The resonance width is in good agreement with experimental results on the microwave absorption in superfluid helium.Comment: 5 pages,
Melnikovsky, L. A.
core   +2 more sources

Parametric Resonance For Complex Fields [PDF]

open access: yesPhysics Letters B, 1999
Recently, there have been studies of parametric resonance decay of oscillating real homogeneous cosmological scalar fields, in both the narrow-band and broad-band case, primarily within the context of inflaton decay and (p)reheating.
Allahverdi   +19 more
core   +5 more sources

Cosmological imprints of string axions in plateau [PDF]

open access: yesEuropean Physical Journal C: Particles and Fields, 2018
We initiate a study on various cosmological imprints of string axions whose scalar potentials have plateau regions. In such cases, we show that a delayed onset of oscillation rather generically leads to a parametric resonance instability.
Jiro Soda, Yuko Urakawa
doaj   +5 more sources

Parametric Feedback Resonance in Chaotic Systems [PDF]

open access: yesPhysical Review Letters, 1996
If one changes the control parameter of a chaotic system proportionally to the distance between an arbitrary point on the strange attractor and the actual trajectory, the lifetime τ of the most stable unstable periodic orbit in the vicinity of this point
Hunt, E. R.   +4 more
core   +4 more sources

Parametric fluctuations of underground and elevated oil pipeline

open access: yesАрхитектура, строительство, транспорт, 2023
Based on the use of the assumptions of the theory of closed cylindrical shells by Vasiliy Z. Vlasov, the authors suggested an analytical method for the study of dynamic instability of pipelines.
I. O. Razov   +3 more
doaj   +1 more source

Time-Delayed Nonlinear Integral Resonant Controller to Eliminate the Nonlinear Oscillations of a Parametrically Excited System

open access: yesIEEE Access, 2021
In this work, a nonlinear integral resonant controller is utilized for the first time to suppress the principal parametric excitation of a nonlinear dynamical system.
N. A. Saeed   +5 more
doaj   +1 more source

Analytical solutions of a particular Hill's differential system [PDF]

open access: yesINCAS Bulletin, 2019
Consider a second order differential linear periodic equation. This equation is recast as a first-order homogeneous Hill’s system. For this system we obtain analytical solutions in explicit form. The first solution is a periodic function.
Nicolae MARCOV
doaj   +1 more source

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