Now showing items 1-16 of 16

    • Muñoz Gálvez, Víctor; Garcés, N. Elizabeth (Science & Technology, 2021)
      We study the light curves of pulsating variable stars using a complex network approach to build visibility graphs. We consider various types of variables stars (e.g., Cepheids, delta Scuti, RR Lyrae), build two types of ...
    • Varas, A.; Cornejo, M. D.; Mainemer, D.; Toledo Cabrera, Benjamín; Rogan Castillo, José; Muñoz Gálvez, Víctor; Valdivia Hepp, Juan (2007)
      A bidimensional cellular automaton model is used to simulate the process of evacuation of pedestrians in a room with fixed obstacles. A floor field is defined so that moving to a cell with lower floor field means approaching ...
    • Villalobos, J.; Toledo Cabrera, Benjamín; Pastén, D.; Muñoz Gálvez, Víctor; Rogan Castillo, José; Zarama, R.; Lammoglia, N.; Valdivia Hepp, Juan (2010)
      Urban traffic is interesting not only due to its obvious social and economical impact, but also due to its complexity. It is not unusual for drivers to get stuck in a traffic jam that apparently emerged from nowhere. ...
    • Castillo, F.; Toledo Cabrera, Benjamín; Muñoz Gálvez, Víctor; Rogan Castillo, José; Zarama, R.; Kiwi Tichauer, Miguel; Valdivia Hepp, Juan (Elsevier, 2014)
      We simulate traffic in a city by means of the evolution of a row of interacting cars, using a cellular automaton model, in a sequence of traffic lights synchronized by a ‘‘green wave’’. When our initial condition is a ...
    • Viñas, Adolfo F.; Moya Fuentes, Pablo; Navarro, Roberto E.; Valdivia Hepp, Juan; Araneda, Jaime A.; Muñoz Gálvez, Víctor (American Geophysical Union, 2015)
      Observed electron velocity distributions in the Earth's magnetosphere and the solar wind exhibit a variety of nonthermal features which deviate from thermal equilibrium, for example, in the form of temperature anisotropies, ...
    • Valdivia Hepp, Juan; Rogan Castillo, José; Muñoz Gálvez, Víctor; Toledo Cabrera, Benjamín (SPRINGER, 2006)
      The magnetosphere is a multi-scale spatio-temporal complex dynamical system. Self-organization is a possible solution to the seemingly contradicting observation of the repeatable and coherent substorm phenomena with ...
    • Valdivia Hepp, Juan; Rogan Castillo, José; Muñoz Gálvez, Víctor; Gomberoff, L.; Klimas, A.; Vassiliadis, D.; Uritsky, V.; Sharma, S.; Toledo Cabrera, Benjamín; Wastavino, L. (PERGAMON-ELSEVIER SCIENCE LTD, 2005-11)
      Copper was removed from an acidic mine drainage (AMD) using a liquid emulsion membrane contactor. The acidic drainage was a harmful natural acidic solution generated by bioleaching and chemical leaching of copper and iron ...
    • Muñoz Gálvez, Víctor; Asenjo, F. A.; Domínguez, M.; López, R. A.; Valdivia Hepp, Juan; Viñas, A.; Hada, T. (European Geosciences Union&the American Geophysical Union, 2014)
      Abstract. Propagation of large-amplitude waves in plasmas is subject to several sources of nonlinearity due to relativistic effects, either when particle quiver velocities in the wave field are large, or when thermal ...
    • Toledo Cabrera, Benjamín; San Juan López, María Angélica; Muñoz Gálvez, Víctor; Rogan Castillo, José; Valdivia Hepp, Juan (Elsevier, 2013)
      We explore the nontrivial behavior of a particular city traffic model due to its minimalistic representation of basic city traffic dynamics. The chaotic behavior is studied through the supertrack functions, an approach ...
    • Muñoz Gálvez, Víctor (EUROPEAN GEOSCIENCES UNION, 2006)
      The nonextensive statistics formalism proposed by Tsallis has found many applications in systems with memory effects, long range spatial correlations, and in general whenever the phase space has fractal or multi-fractal ...
    • Asenjo, F.; Toledo Cabrera, Benjamín; Muñoz Gálvez, Víctor; Rogan Castillo, José; Valdivia Hepp, Juan (AMER INST PHYSICS, 2008-07-21)
      We describe a simple method to control a known unstable periodic orbit UPO in the presence of noise. The strategy is based on regarding the control method as an optimization problem, which allows us to calculate a ...
    • Gomberoff, Andrés; Muñoz Gálvez, Víctor; Romagnoli, Pierre (2014)
      Divorced individuals face complex situations when they have children with different ex-partners, or even more, when their new partners have children of their own. In such cases, and when kids spend every other weekend ...
    • Villalobos, Jorge; Muñoz Gálvez, Víctor; Rogan Castillo, José; Zarama, Roberto; Johnson, Neil F.; Toledo Cabrera, Benjamín; Valdivia Hepp, Juan (American Physical Society, 2014)
      In the hope of making passenger travel times shorter and more reliable, many cities are introducing dedicated bus lanes (e.g., Bogota, London, Miami). Herewe showthat chaotic travel times are actually a natural consequence of ...
    • Navarro, R. E.; Moya, P. S.; Muñoz Gálvez, Víctor; Araneda, J. A.; Viñas, A. F.; Valdivia Hepp, Juan (American Physical Society, 2014)
      A kinetic description of Alfvén-cyclotron magnetic fluctuations for anisotropic electron-proton quasistable plasmas is studied. An analytical treatment, based on the fluctuation-dissipation theorem, consistently shows ...
    • Domínguez, Macarena; Muñoz Gálvez, Víctor; Valdivia Hepp, Juan (American Geophysical Union, 2014)
      The study of complexity in two aspects of the magnetic activity in the Sun-Earth system is presented. We compare the temporal evolution of the magnetic fluctuations in the Earth’s magnetosphere and the spatial distribution ...
    • Moya, P. S.; Navarro, R.; Viñas, A. F.; Muñoz Gálvez, Víctor; Valdivia Hepp, Juan (2014-02-01)
      We study the wave¨Cparticle interaction and the evolution of electromagnetic waves propagating through a solarwind- like plasma composed of cold electrons, isotropic protons, and a small portion of drifting anisotropic ...