Browsing by Title Facultad de Ciencias Físicas y Matemáticas
Now showing items 2526-2545 of 20342
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(Universidad de Chile, 2021)Los simuladores son herramientas fundamentales para el desarrollo de algoritmos. Sin embargo, la mayoría de los simuladores no son representaciones certeras del mundo real lo que implica que algoritmos entrenados únicamente ...
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(Springer, 2015)An introduction to the special volume on Operations Research in Forestry from the 14th Symposium for Systems Analysis in Forest Resources, held at the Marbella Resort, Maitencillo, Chile, March 8–11, 2011. This volume ...
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(EDP Sciences, 2013-08)Aims. We characterize a bright-rimmed cloud embedded in the H II region Sh2-48 while searching for evidence of triggered star formation. Methods. We carried out observations towards a region of 2' x 2' centered at RA ...
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(PERGAMON-ELSEVIER SCIENCE LTD, 2012-01)This paper analyzes the socioeconomic stratification of achievement in the Chilean voucher system using a census of 4th and 8th graders, a multilevel methodology, and accounting for unobserved selectivity into school sector. ...
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(Frontiers Media, 2020)Fracture mechanics theory and seismological observations suggest that slip-rate is constantly changing during earthquake rupture, including dramatic acceleration from static conditions to high velocity sliding followed by ...
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(Universidad de Chile, 2023)Las estrategias de control adaptable modifican los parámetros del controlador en el tiempo con el fin de cumplir con un índice de desempeño. La forma en que se adaptan varía dependiendo de la información disponible, la ...
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(The American Astronomical Society, 2013)We present a detailed investigation of the variability of 428 C iv and 235 Si iv broad absorption line (BAL) troughs identified in multi-epoch observations of 291 quasars by the Sloan Digital Sky Survey-I/II/III. These ...
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(MDPI, 2021)The unprecedented size of the 2017 wildfires that burned nearly 600,000 hectares of central Chile highlight a need to better understand the climatic conditions under which large fires develop. Here we evaluate synoptic ...
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(Hindawi Publishing Corp., 2016)Piezoelectric cantilevered beams have been widely used as vibration-based energy harvesters. Nevertheless, these devices have a narrow frequency band and if the excitation is slightly different there is a significant drop ...
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(Royal Soc Chemistry, 2021)We present a new heteroditopic ligand (3pyCCMoid) that contains the typical skeleton of a curcuminoid (CCMoid) decorated with two 3-pyridyl groups. The coordination of 3pyCCMoid with ZnII centres results in a set of novel ...
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(ELSEVIER SCIENCE, 2005-12-31)A de Bruijn sequence over a finite alphabet of span n is a cyclic string such that all words of length n appear exactly once as factors of this sequence. We extend this definition to a subset of words of length n, ...
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(2005)A de Bruijn sequence over a finite alphabet of span n is a cyclic string such that all words of length n appear exactly once as factors of this sequence. We extend this definition to a subset of words of length n, ...
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(SCUOLA NORMALE SUPERIORE, 2016)We consider the problem {-Delta u + u = u(p) + lambda u(q) u > 0 in R-Nu(z) -> 0 as vertical bar z vertical bar -> infinity where p = p* + epsilon, with p* = N+2/N-2, while 1 < q < N+2/N-2 if N >= 4, and 3 < q < 5 if N = ...
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(PERGAMON-ELSEVIER SCIENCE LTD, 2008-03-01)In this work we consider the following problem [GRAPHICS] with N/(N - 2) < p < p* = (N + 2)/(N - 2) < q, N >= 3. We prove that if p is fixed, and q is close enough to the critical exponent p*, then there exists a ...
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(2000-10-30)We study the dynamics of bubbles in the one dimensional Cahn-Hilliard equation. For a gas of diluted bubbles we find ordinary differential equations describing their interaction which permits us to describe the ulterior ...
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(European Mathematical Society Publishing House, 2017)We investigate bubbling solutions for the nonlocal equation Aω s u = up, u > 0 in ω, under homogeneous Dirichlet conditions, where ω is a bounded and smooth domain. The operator As ω stands for two types of nonlocal ...
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(Elsevier, 2015)Let (M, g) be an n-dimensional compact Riemannian manifold without boundary and Gamma be a non-degenerate closed geodesic of (M, g). We prove that the supercritical problem -Delta(g)u + hu = u(n+1/n+3) (+/-) (epsilon), ...
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(Oxford Univ Press, 2016)In a hierarchical Universe clusters grow via the accretion of galaxies from the field, groups and even other clusters. As this happens, galaxies can lose and/or consume their gas reservoirs via different mechanisms, ...
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(Universidad de Chile, 2010)Este estudio analiza el rol de la gestión en educación municipal en Chile y en algunas de sus comunas, y pretende contribuir a mejorar la calidad de su oferta pública en educación primaria y secundaria. En la primera ...
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(Universidad de Chile, 2017)Una de las tareas de la Administración Pública es la satisfacción de la necesidades colectivas, para ello en Chile se han aprobado una serie de dispositivos legales, tales como el Código Buenas Prácticas en Probidad, Ética, ...
