Results 61 to 70 of about 5,152,512 (204)
Nonlinear vibration and chaos of a moving flexible graphene smart electronic web
Results in Physics, 2020 Flexible graphene smart electronics are a kind of electronic device made of silver or other inorganic material and a flexible graphene web substrate. Because of their flexibility and excellent electronic properties, flexible graphene smart electronics ...
Shudi Ying +4 more
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Seismic Tremor as a Precursor to Hydrothermal Explosions Near Mutnovsky Volcano (Kamchatka)
Geophysical Research Letters, Volume 53, Issue 15, 16 August 2026.Abstract Mutnovsky Volcano, ∼70 km SW of Petropavlovsk‐Kamchatsky, exhibits persistent degassing, hosts active hydrothermal springs and the Mutnovsky Geothermal Power Plant (MGPP) on its slopes. Using the network covariance matrix approach, we analyzed seismic data recorded in 2023–2024 by 15 seismic stations operating around Mutnovsky Volcano.
Y. Berezhnev +7 more
wiley +1 more source
Research of the Multi Parameter Edge of Chaos of Non- linear Simple Pendulum System
Jixie chuandong, 2015 By using Melnikov method,the necessary condition of the chaotic motion is established through the calculation of Melnikov function. Furthermore,the edge of chaos of the dynamics system is obtained.
He Shanghong +3 more
doaj
MathematicsMany authors analyze the chaotic motion of the driven and damped double sine-Gordon equations and compute the Melnikov functions by numerical methods, taking an example to verify good agreement between numerical methods and analytical ones. Unfortunately,
Nikolay Kyurkchiev +2 more
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Global bifurcation of a cubic system perturbed by degree four
上海师范大学学报. 自然科学版, 2014 Using the method of multi-parameter perturbation theory and qualitative analysis, a cubic system perturbed by degree four are investigated in this paper. After systematic analysis, it is found that the studied system can have nine limit cycles with their
Desheng Shang, Zheng Wang
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Exponential dichotomies, heteroclinic orbits, and Melnikov functions
Journal of Differential Equations, 1990 The authors consider an n-dimensional perturbed system (*) \(dz/dt=g(z)+h(t,z,\epsilon),\) where the perturbation term h(t,z,\(\epsilon\)) is bounded, \(\epsilon\) being a multidimensional parameter, and they give, using the method of Lyapunov-Schmidt, a sufficient condition for the existence of a bounded solution of (*) as the solvability condition of
Battelli, Flaviano, Lazzari, Claudio
openaire +1 more source
Hölder Regularity of the Solutions of Fredholm Integral Equations on Upper Ahlfors Regular Sets
Mathematical Methods in the Applied Sciences, Volume 49, Issue 12, Page 13361-13381, August 2026.ABSTRACT We extend to the context of metric measured spaces, with a measure that satisfies upper Ahlfors growth conditions, the validity of (generalized) Hölder continuity results for the solution of a Fredholm integral equation of the second kind. Here we note that upper Ahlfors growth conditions include also cases of nondoubling measures.
Massimo Lanza de Cristoforis +1 more
wiley +1 more source
Melnikov analysis in nonsmooth differential systems with nonlinear switching manifold
, 2021 We study the family of piecewise linear differential systems in the plane with two pieces separated by a cubic curve. Our main result is that 7 is a lower bound for the Hilbert number of this family.
Bastos, Jéfferson L. R. +3 more
core
Heteroclinic Bifurcation Behaviors of a Duffing Oscillator with Delayed Feedback
Shock and Vibration, 2018 The heteroclinic bifurcation and chaos of a Duffing oscillator with forcing excitation under both delayed displacement feedback and delayed velocity feedback are studied by Melnikov method.
Shao-Fang Wen, Ju-Feng Chen, Shu-Qi Guo
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Lectotypifications and taxonomic changes in the holoparasitic Orobanchaceae
Nordic Journal of Botany, Volume 2026, Issue 8, August 2026.Based on further extensive studies of specimens in various herbaria, lectotypes are designated for many taxa of holoparasitic Orobanchaceae. In particular, 47 names in the genera Boschniakia (incl. Xylanche), Cistanche, Orobanche, Phelipanche and Phelypaea are lectotypified.
Holger Uhlich +5 more
wiley +1 more source