Zobrazeno 1 - 10
of 55
pro vyhledávání: '"R. L. Viana"'
We consider a dissipative version of the standard nontwist map. Nontwist systems present a robust transport barrier, called the shearless curve, that becomes the shearless attractor when dissipation is introduced. This attractor can be regular or cha
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5f7caf074b6f729894bcd1129a6db9d3
http://arxiv.org/abs/2211.06921
http://arxiv.org/abs/2211.06921
Intrinsically coupled nonlinear systems present different oscillating components that exchange energy among themselves. A paradigmatic example is the spring pendulum, which displays spring, pendulum, and coupled oscillations. We analyze the energy ex
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fe66581e1cc4c0137798893d109dc3cc
http://arxiv.org/abs/2208.06390
http://arxiv.org/abs/2208.06390
Publikováno v:
Repositório Institucional da USP (Biblioteca Digital da Produção Intelectual)
Universidade de São Paulo (USP)
instacron:USP
Universidade de São Paulo (USP)
instacron:USP
Fractal structures appear very often in open Hamiltonian systems, and can be identified in the deposition of chaotic magnetic field line on the plates of a tokamak divertor. Indeed, tokamaks with divertors are used to control the magnetic confinement
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4e576c6e1ecc652dd4be53ef7ae3f091
Autor:
Marcio C. Bajgelman, Hui Lin-Wang, Jessica Bassani, Carlos Gun, Camila Canateli, Gabriel C. Lima, Elaine Cardoso, Jessica M. Toscaro, Ana Carolina Pagliarone, Cely Saad Abboud, Luis A. Peroni, R. L. Viana, Kleber G. Franchini
Seroconversion to SARS-CoV-2 has been widely studied to evaluate infection spreading for epidemiological purpose, or even in studies of protective immunity in convalescent or vaccinated individuals. The viral particle has an envelope harboring the sp
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::620d5f3a3e43919d6a92580bbe97b48e
https://doi.org/10.1101/2021.06.07.21258114
https://doi.org/10.1101/2021.06.07.21258114
Publikováno v:
Chaos, Solitons & Fractals. 104:588-598
Open hamiltonian systems have typically fractal structures underlying chaotic dynamics with a number of physical consequences on transport. We consider such fractal structures related to the formation of a chaotic magnetic field line region near the
Autor:
Michele Mugnaine, M. S. Santos, Antonio M. Batista, R. L. Viana, A. C. Mathias, José D. Szezech
Publikováno v:
Physical Review E. 97
The turnstile provides us a useful tool to describe the flux in twist Hamiltonian systems. Thus, its determination allows us to find the areas where the trajectories flux through barriers. We show that the mechanism of the turnstile can increase the
Autor:
P. R. Protachevicz, R. L. Viana, Elbert E. N. Macau, I. L. Caldas, E. L. Lameu, Kelly Cristiane Iarosz, Fernando S. Borges, A. M. Batista
Publikováno v:
Anais da XX Semana da Física.
Autor:
R. L. Viana, P. R. Protachevicz, Iberê L. Caldas, Fernando S. Borges, A. M. Batista, Kelly Cristiane Iarosz
Publikováno v:
Anais da XX Semana da Física.
Publikováno v:
Anais da XX Semana da Física.
Autor:
Antonio M. Batista, Kelly C. Iarosz, R. L. Viana, Fernando S. Borges, E. L. Lameu, Murilo S. Baptista
Publikováno v:
Physica A: Statistical Mechanics and its Applications. 430:236-241
We study the dynamic range of a cellular automaton model for a neuronal network with electrical and chemical synapses. The neural network is separated into two layers, where one layer corresponds to inhibitory, and the other corresponds to excitatory