Papers

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Filtros: Autor é Viana, R. L.  [Limpar todos os filtros]
Journal Article
E. C. da Silva, Caldas, I. L., and Viana, R. L., Field line diffusion and loss in a tokamak with an ergodic magnetic limiter, Physics of Plasmas, vol. 8, no. 6, pp. 2855 - 2865, 2001. (502.88 KB)
J. D. Szezech, Schelin, A. B., Caldas, I. L., Lopes, S. R., Morrison, P. J., and Viana, R. L., Finite-time rotation number: A fast indicator for chaotic dynamical structures, Physics Letters A, vol. 377, no. 6, pp. 452 - 456, 2013. (1.02 MB)
J. D. Szezech, Schelin, A. B., Caldas, I. L., Lopes, S. R., Morrison, P. J., and Viana, R. L., Finite-time rotation number: A fast indicator for chaotic dynamical structures, Physics Letters A, vol. 377, no. 6, pp. 452 - 456, 2013. (1.02 MB)
J. D. Szezech, Schelin, A. B., Caldas, I. L., Lopes, S. R., Morrison, P. J., and Viana, R. L., Finite-time rotation number: A fast indicator for chaotic dynamical structures, Physics Letters A, vol. 377, no. 6, pp. 452 - 456, 2013. (1.02 MB)
L. C. Souza, Mathias, A. C., Caldas, I. L., Elskens, Y., and Viana, R. L., Fractal and Wada escape basins in the chaotic particle drift motion in tokamaks with electrostatic fluctuations, Chaos: An Interdisciplinary Journal of Nonlinear Science, vol. 33, no. 8, 2023. (7.63 MB)
J. S. E. PORTELA, Caldas, I. L., Viana, R. L., and Sanjuan, M. A. F., FRACTAL AND WADA EXIT BASIN BOUNDARIES IN TOKAMAKS, International Journal of Bifurcation and Chaos, vol. 17, no. 11, pp. 4067 - 4079, 2007. (1.94 MB)
R. L. Viana, Mathias, A. C., Marcus, F. A., Kroetz, T., and Caldas, I. L., Fractal boundaries in chaotic hamiltonian systems, Journal of Physics: Conference Series, vol. 911, p. 012002, 2017. (3.79 MB)
A. C. Mathias, Souza, L. C., Schelin, A. R., Caldas, I. L., and Viana, R. L., Fractal Escape Basins for Magnetic Field Lines in Fusion Plasma Devices, Journal of Applied Nonlinear Dynamics, vol. 12, no. 4, pp. 723 - 738, 2023. (1.43 MB)
A. C. Mathias, Perotto, G., Viana, R. L., Schelin, A., and Caldas, I. L., Fractal Structures and Magnetic Footprints in a Divertor Tokamak, International Journal of Bifurcation and Chaos, vol. 32, no. 06, 2022. (11.46 MB)
R. L. Viana, da Silva, E. C., Kroetz, T., Caldas, I. L., Roberto, M., and Sanjuan, M. A. F., Fractal structures in nonlinear plasma physics, Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences, vol. 3691773812350583226118296176/7769456114450914151594551271906484214717293847122164165386667134315505162717123981448180, no. 193523525424, pp. 371 - 395, 2011. (3.76 MB)
A. C. Mathias, Viana, R. L., Kroetz, T., and Caldas, I. L., Fractal structures in the chaotic motion of charged particles in a magnetized plasma under the influence of drift waves, Physica A: Statistical Mechanics and its Applications, vol. 469, pp. 681 - 694, 2017. (6.98 MB)
A. C. Mathias, Mugnaine, M., Santos, M. S., Szezech, J. D., Caldas, I. L., and Viana, R. L., Fractal structures in the parameter space of nontwist area-preserving maps, Physical Review E, vol. 100, no. 5, 2019. (2.08 MB)
R. L. Viana, Mugnaine, M., and Caldas, I. L., Hamiltonian description for magnetic field lines in fusion plasmas: A tutorial, Physics of Plasmas, vol. 30, no. 9, p. 090901, 2023. (1.64 MB)
P. R. Protachevicz, Borges, F. S., Iarosz, K. C., Caldas, I. L., Baptista, M. S., Viana, R. L., Lameu, E. L., Macau, E. E. N., and Batista, A. Marcos, How synapses can enhance sensibility of a neural network, Physica A: Statistical Mechanics and its Applications, vol. 492, pp. 1045 - 1052, 2018. (804.92 KB)
S. L. T. de Souza, Caldas, I. L., Viana, R. L., Balthazar, J. M., and Brasil, R. M. L. R. F., Impact dampers for controlling chaos in systems with limited power supply, Journal of Sound and Vibration, vol. 279, no. 3-5, pp. 955 - 967, 2005. (1005.25 KB)
F. S. Borges, Lameu, E. L., Iarosz, K. C., Protachevicz, P. R., Caldas, I. L., Viana, R. L., Macau, E. E. N., Batista, A. Marcos, and Baptista, M. S., Inference of topology and the nature of synapses, and the flow of information in neuronal networks, Physical Review E, vol. 97, no. 2, 2018. (1.74 MB)
K. C. Iarosz, Batista, A. Marcos, Viana, R. L., Lopes, S. R., Caldas, I. L., and Penna, T. J. P., The influence of connectivity on the firing rate in a neuronal network with electrical and chemical synapses, Physica A: Statistical Mechanics and its Applications, vol. 391, no. 3, pp. 819 - 827, 2012. (1.05 MB)
T. Kroetz, Roberto, M., Caldas, I. L., Viana, R. L., Morrison, P. J., and Abbamonte, P., Integrable maps with non-trivial topology: application to divertor configurations, Nuclear Fusion, vol. 50, no. 3, p. 034003, 2010. (1 MB)
A. Marcos Batista, Caldas, I. L., Lopes, S. R., and Viana, R. L., Low-dimensional chaos and wave turbulence in plasmas, Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences, vol. 366133290392122664717115515425263518, no. 18652323, pp. 609 - 620, 2008. (1.42 MB)
J. V. Gomes, de Sousa, M. C., Viana, R. L., Caldas, I. L., and Elskens, Y., Low-dimensional chaos in the single wave model for self-consistent wave–particle Hamiltonian, Chaos: An Interdisciplinary Journal of Nonlinear Science, vol. 31, no. 8, p. 083104, 2021. (4.66 MB)
R. L. Viana, Batista, A. Marcos, Batista, C. A. S., and Iarosz, K. C., Lyapunov spectrum of chaotic maps with a long-range coupling mediated by a diffusing substance, Nonlinear Dynamics, vol. 87775785684669476103173530868326286329393104110413432969641035620634368, no. 3, pp. 1589 - 1601, 2017. (1.32 MB)
R. L. Viana, Batista, A. Marcos, Batista, C. A. S., and Iarosz, K. C., Lyapunov spectrum of chaotic maps with a long-range coupling mediated by a diffusing substance, Nonlinear Dynamics, vol. 87775785684669476103173530868326286329393104110413432969641035620634368, no. 3, pp. 1589 - 1601, 2017. (1.32 MB)
I. L. Caldas, Pereira, J. M., Ullmann, K., and Viana, R. L., Magnetic field line mappings for a tokamak with ergodic limiters, Chaos, Solitons & Fractals, vol. 7, no. 7, pp. 991 - 1010, 1996. (1.12 MB)
M. Roberto, da Silva, E. C., Caldas, I. L., and Viana, R. L., Magnetic trapping caused by resonant perturbations in tokamaks with reversed magnetic shear, Physics of Plasmas, vol. 11, no. 1, pp. 214 - 225, 2004. (2.08 MB)
F. F. de Carvalho, Viana, R. L., and Caldas, I. L., Magnetohydrostatic Equilibrium with External Gravitational Fields in Symmetric Systems, Brazilian Journal of Physics, 2016. (3.97 MB)

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