Browsing by Title Facultad de Ciencias Físicas y Matemáticas
Now showing items 2504-2523 of 20720
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(IOS PRESS, 2005-01)The classical problem of homogenization deals with elliptic operators in periodically oscillating media of small period epsilon>0 and the asymptotic behavior of solution u(epsilon) of boundary value problems associated ...
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(2005)We consider a periodically heterogeneous and perforated medium filling an open domain of RN . Assuming that the size of the periodicity of the structure and of the holes is O(ε), we study the asymptotic behavior, as ε ...
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(GAUTHIER-VILLARS/EDITIONS ELSEVIER, 1998-02)We consider a second-order elliptic equation in a bounded periodic heterogeneous medium and study the asymptotic behavior of its spectrum, as the structure period goes to zero. We use a new method of Bloch wave homogenization ...
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(2007)In this Note, we use the Bloch wave method to study the asymptotic behavior of the solution of the Laplace equation in a periodically perforated domain, under a non-homogeneous Neumann condition on the boundary of the ...
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(SOUTH AFRICAN INST MINING METALLURGY, 2006-03)This work evaluates and characterizes the impact of the support size and mining dilution of a block model in the operation and selection of equipment at an open pit mine. An exploratory analysis and geostatistical modelling ...
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(IOP Publishing, 2015)Astrophysical research in recent decades has made significant progress thanks to the availability of various N-body simulation techniques. With the rapid development of high-performance computing technologies, modern ...
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(ACADEMIC PRESS, 2008-07)We say that a square matrix M of order r is a degree matrix of a given graph G if there is a so-called equitable partition of its vertices into r blocks with the following property: For any i and j it holds that a vertex ...
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(Institute of Electrical and Electronics Engineers (IEEE), 2020)Due to the long train marshaling and complex line conditions, the operating modes in heavy haul rail systems frequently change when trains travel. Improper traction or braking operation made by drivers will increase the ...
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Blood flow dynamics and arterial wall interaction in a saccular aneurysm model of the basilar artery (PERGAMON-ELSEVIER SCIENCE LTD, 2006-08)Blood flow dynamics under physiologically realistic pulsatile conditions plays an important role in the growth, rupture and surgical treatment of intracranial aneurysms. This paper describes the flow dynamics and arterial ...
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(JOHN WILEY & SONS LTD, 2008-12-10)Hemodynamics plays an important role in the progression and rupture of cerebral aneurysms. The current work describes the blood flow dynamics and fluid–structure interaction in seven patient-specific models of bifurcating ...
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(Nature Publishing Group, 2019)The Head Positioning in Acute Stroke Trial (HeadPoST) is a pragmatic, international, cluster crossover randomized trial of 11,093 patients with acute stroke assigned to a lying-flat (0°) or sitting-up (head elevated ≥30°) ...
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(Universidad de Chile, 2012)En el marco de la variabilidad de la precipitación en Chile, se estudian dos fenómenos atmosféricos de gran escala: Altas de Bloqueo y Bajas Segregadas. Estos fenómenos fueron caracterizados, respectivamente, como anomalías ...
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(Universidad de Chile, 2013)Hay dos partes en mi tesis. La primera parte se dedica principalmente a la construcción de soluciones burbujeantes de algunos problemas elípticos con no linealidad exponencial en $\mathbb{R}^2$. En la segunda parte se ...
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(The American Astronomical Society, 2014-10-01)We present Hubble Space Telescope (HST) observations of the field of the Type IIb supernova (SN) 2011dh in M51 performed at ≈1161 rest-frame days after explosion using the Wide Field Camera 3 and near-UV filters F225W ...
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(Universidad de Chile, 2018)Se presentan datos de tipo panel o series de tiempo para 13 economías del Caribe precedentes del Banco Interamericano de Desarrollo, Compete Caribbean y del Banco Mundial para examinar por primera vez las consecuencias ...
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(MDPI AG, 2015)Conductance-based (CB) models are a class of high dimensional dynamical systems derived from biophysical principles to describe in detail the electrical dynamics of single neurons. Despite the high dimensionality of these ...
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(Universidad Nacional de Colombia, 2019)This article seeks to analyze Carlos Martinez's doctoral dissertation, Contribution à une étude d'urbanisation de Bogotá, Colombie. To do so, it proposes a critical reading of the document that incorporates its epistemological ...
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(2009-08-10)Using data of three well observed Type II plateau supernovae (SNe II-P), SNe 1987A, 1999em, and 2003hn, and two atmosphere models by Eastman et al. and Dessart & Hillier, we derive calibrations for bolometric corrections ...
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(Universidad de Chile, 2018)La ciudad de Coyhaique tiene serios problemas de contaminación ambiental, debido a la combustión de leña para calefacción. Este problema es crítico durante los meses de otoño e invierno, por lo que la ciudad fue declarada ...
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(Universidad de Chile, 2009)En éste trabajo de título se diseña un proyecto de elevación de agua para riego en el Cerro Calán el cual alberga en su cumbre al departamento de Astronomía de la Universidad de Chile. La elevación de agua se hará mediante ...
