Browsing by Author "201-0548420"
Now showing items 21-40 of 71
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(Universidad de Chile, 2013)Este trabajo consta de 2 capítulos. El primer capítulo trata sobre el estudio de ondas de sedimento en el transporte hidráulico de sólidos en tubería (THST). El primer objetivo de este capítulo es estudiar la solución ...
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(Universidad de Chile, 2013)Las alturas máximas del tsunami (alturas de runup) son unos de los parámetros de mayor interés, ya que su predicción estima el peligro al cual se ve expuesta la población. Bajo esta perspectiva, el objetivo principal de ...
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(Universidad de Chile, 2013)El manejo de relaves en Chile presenta problemas especiales y a veces únicos a nivel mundial. Es de obvio interés investigar la aplicabilidad de los análisis reofísicos a los relaves chilenos, ya que la posibilidad de ...
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(2011-07)We study the existence of local and global mild solutions of the fractional-order differential equations in an arbitrary Banach space by using the semigroup theory and the Schauder fixed-point theorem. We also give some ...
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(2009)The pioneering works of Murat and Tartar (Topics in the mathematical modeling of composite materials. PNLDE 31. Birkhäuser, Basel, 1997) go a long way in showing, in general, that problems of optimal design may not admit ...
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(Universidad de Chile, 2016)En este trabajo se presenta el problema del transporte de calor y masa para un sistema compuesto de dos fases fluidas en un medio poroso, el cual puede ser relevante en el uso de CO2 como fluido de trabajo en reservorios ...
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(Universidad de Chile, 2012)El primer objetivo de este trabajo es desarrollar un algoritmo que resuelva la EDP asociada al modelo de Bingham, en un dominio particular, una canaleta. La dificultad se centra en que este modelo introduce una no linealidad ...
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(Universidad de Chile, 2012)Un problema con superficie libre es aquel cuya formulación matemática involucra superficies que deben ser encontradas como parte de la solución. Tales superficies se llaman superficies libres. El objetivo del presente ...
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(2002-06)This article is divided into two chapters. The classical problem of homogenization of elliptic operators with periodically oscillating coe cients is revisited in the rst chapter. Following a Fourier approach, we discuss ...
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Fourier homogenization method and the propagation of acoustic waves through a periodic vortex array (1999)The classical problem of homogenization of elliptic operators in arbitrary domains with periodically oscillating coe cients is considered. As the period goes to zero, an asymptotic analysis of the corresponding sequence ...
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(2003)The limit behavior of the solutions of Signorini's type-like problems in periodically perfo- rated domains with period " is studied. The main feature of this limit behaviour is the existence of a critical size of the ...
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(1993)we consider a quadratic eigenvalue problem such that the second order term is a Hermitian matrix of rank r, the linear term is the identity matrix, and the constant term is an arbitrary Hermitian matrix A E cnn. Of the ...
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(ROYAL SOC EDINBURGH, 2006)In this article we study the asymptotic behaviour of the eigenvalues of a family of nonlinear monotone elliptic operators of the form A(epsilon) = - div(a(epsilon) (x, del u)), which are sub-differentials of even, positively ...
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(1999)In this paper we study a simplified model of the behavior of a 3-D solid made from two elastic homogeneous materials separated by a rapidly oscillating interface. We study the asymptotic beha¨ior of the solution of such ...
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(1997-12)In this paper, the classical problem of homogenization of elliptic operators in arbitrary domains with periodically oscillating coe cients is considered. Using Bloch wave decomposition, a new proof of convergence is ...
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(Shanghai Scientific Technology Literature, 2015)The authors study a linear inverse problem with a biological interpretation, which is modelled by a Fredholm integral equation of the first kind, where the kernel is represented by step functions. Based on different ...
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(IOP PUBLISHING LTD, 2005-10)We study the following inverse problem: an inaccessible rigid body D is immersed in a viscous fluid, in Such a way that D plays the role of an obstacle around which the fluid is flowing in a greater bounded domain Q, and ...
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(Universidad de Chile, 2016)Esta tesis está dedicada al estudio del problema inverso de detección de obstáculos/objetos utilizando métodos de optimización. Este problema consiste en localizar un objeto desconocido $\omega$ dentro de un dominio acotado ...
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(Universidad de Chile, 2015)Esta tesis está dedicada al estudio del sistema de Boussinesq estacionario: \begin{subequations}\label{sum_sp:eqn_Boussinesq} \begin{equation} -\nu \Delta\vu +(\vu\cdot\nabla)\vu+\nabla \pi=\theta\vg \text{\quad en ...
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(HINDAWI PUBLISHING CORPORATION, 2006)This paper presents a comprehensive mathematical model of transport phenomena which occur along a tuyere of the Teniente converter during injection of oxygen-enriched air. Inlet pressure, gas velocity and temperature, the ...
