Browsing by Title Facultad de Ciencias Físicas y Matemáticas
Now showing items 6448-6467 of 20545
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(IOP, 2020)More than a dozen young stars host spiral arms in their surrounding protoplanetary disks. The excitation mechanisms of such arms are under debate. The two leading hypotheses-companion-disk interaction and gravitational ...
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(WORLD SCIENTIFIC PUBL, 2016)We propose a simple model of landfill and study a minimal time control problem where the re-circulation leachate is the manipulated variable. We propose a scheme to construct the optimal strategy by dividing the state ...
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Dynamical models to explain observations with SPHERE in planetary systems with double debris belts (EDP Sciences, 2018)Context. A large number of systems harboring a debris disk show evidence for a double belt architecture. One hypothesis for explaining the gap between the debris belts in these disks is the presence of one or more planets ...
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(Royal Soc, 2016)We compare two different notions of dynamical phase transitions in closed quantum systems. The first is identified through the time-averaged value of the equilibrium-order parameter, whereas the second corresponds to ...
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(Elsevier, 2015)It is shown that a single molecular magnet placed in a rapidly oscillating magnetic field displays the phenomenon of quenching of tunneling processes. The results open a way to manipulate the quantum states of molecular ...
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(ACADEMIC PRESS INC ELSEVIER SCIENCE, 2003-11-20)We study the existence of singular separable solutions to the 2-dimensional quasilmear equation -del(.) (\delu\(p-2)delu) + \u\(q-1) u = 0 under the form u(r, theta) = r(-beta)omega(theta). We obtain the full description ...
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(Universidad de Chile, 2023)La masa es el parámetro fundamental que determina la estructura y evolución de una estrella. Sin embargo, medir la masa de las estrellas no es una tarea fácil, por lo que el número de estrellas con masas bien conocidas ...
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A dynamically-packed planetary system around GJ 667C with three super-Earths in its habitable zone (EDP Sciences, 2013-08)Context. Since low-mass stars have low luminosities, orbits at which liquid water can exist on Earth-sized planets are relatively close-in, which produces Doppler signals that are detectable using state-of-the-art Doppler ...
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(Elsevier, 2020)Volcanic debris avalanches are extremely destructive phenomena, with the potential to travel many kilometers from their source region, either as rockslides or as mass flows. Given that they may even be triggered at inactive ...
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(IOP Publishing, 2020)This paper introduces a new consideration in the well known chemostat model of a one-species with a periodic input of single nutrient with period omega, which is described by a system of differential delay equations. The ...
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(American Physical Society, 2014)Agranular system confined in a quasi-two-dimensional box that is vertically vibrated can transit to an absorbing state in which all particles bounce vertically in phase with the box, with no horizontal motion. In principle, ...
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(Institute of Mathematical Statistics, 2018)We study the long-time behavior of the dynamics of interacting planar Brownian particles, confined by an external field and subject to a singular pair repulsion. The invariant law is an exchangeable Boltzmann – Gibbs ...
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(AMER Geophysical Union, 2021)The 2004-2009 caldera uplift is the largest instrumentally recorded episode of unrest at Yellowstone caldera. We use GPS and Interferometric Synthetic Aperture Radar (InSAR) time series spanning 2004-2015, with a focus in ...
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(2010-04-14)In order to assess the physical mechanisms at stake when giant gas bubbles burst at the top of a magma conduit, laboratory experiments have been performed. An overpressurized gas cavity is initially closed by a thin ...
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(Deutsche Physikalische Gesellschaft, 2014)We report on the experimental observation and characterization of the bifurcation diagram, dynamical properties and fluctuations of spatially modulated kinks in a shallow one-dimensional fluidized granular layer subjected ...
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(ELSEVIER, 2006-07-14)In this paper we present a large scale study on the evolution of the Web structure of the Chilean domain (.cl) from 2000 to 2004, focusing on the Web site transitions in the structure. This is the study of the largest time ...
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(AMER METEOROLOGICAL SOC, 2005-12)The subtropical west coast of South America is under the influence of the southeast Pacific anticyclone year-round, which induces persistent southerly winds along the coast of north-central Chile. These winds often take ...
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(ELSEVIER, 2008-04)We study the deterministic spin dynamic of two interacting magnetic moments with anisotropy and dipolar interaction under the presence of an applied magnetic field, by using the Landau-Lifshitz equation with and without a ...
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(Universidad de Chile, 2020)En esta tesis investigamos tres experimentos en los que confinamos suspensiones bacterianas al interior de microgotas. El objetivo de estos experimentos es entender cómo la microactividad a escala local, cuando las ...
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(ELSEVIER, 2004-10-15)We present a study of a one-dimensional granular gas of point-like particles not subject to gravity between two walls at granular-temperatures T- and T+, with T- < T+ and submit a physical picture of the mechanism that ...
