Browsing by Title Facultad de Ciencias Físicas y Matemáticas
Now showing items 9749-9768 of 20545
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(Association for Computing Machinery, 2017)We survey foundational features underlying modern graph query languages. We first discuss two popular graph data models: edge-labelled graphs, where nodes are connected by directed, labelled edges, and property graphs, ...
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(ACADEMIC PRESS INC ELSEVIER SCIENCE, 2011-05)The Semantic Web is based on the idea of a common and minimal language to enable large quantities of existing data to be analyzed and processed. This triggers the need to develop the database foundations of this basic ...
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(EDP Sciences, 2019)Twenty years ago, GRB 980425/SN 1998bw revealed that long gamma-ray bursts (GRBs) are physically associated with broad-lined type-Ic supernovae (SNe). Since then more than 1000 long GRBs have been localized to high angular ...
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(2010-02-10)We report molecular line and dust continuum observations, made with the Swedish-ESO Submillimeter Telescope, toward four young high-mass star-forming regions associated with highly luminous (L > 6 × 105 L ) Infrared Astronomical ...
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(2010-02-10)We present sensitive near-infrared (J, H, and K) imaging observations toward four luminous massive star-forming regions in the Norma Spiral Arm: G324.201+0.119, G328.307+0.432, G329.337+0.147, and G330.949−0.174. We ...
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(EDP Sciences, 2016)Context. Exoplanet searches have revealed interesting correlations between the stellar properties and the occurrence rate of planets. In particular, different independent surveys have demonstrated that giant planets are ...
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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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(Universidad de Chile, 2013)En esta memoria se extiende el resultado de integración de Correa y Hantoute presentado en \cite{Correa1}, que dice que si un espacio de Banach $X$ tiene la propiedad de Radon-Nykod\'ym (RNP), entonces para todo par de ...
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(Elsevier, 2016)This paper presents a experimentally-validated fractal time thermal model to describe the discharge and cooling down processes of air-cooled cylindrical Lithium-ion cells. Three cases were studied, a spatially isolated ...
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(Elsevier, 2013)
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(Wiley, 2017)This paper presents the analysis of fractional adaptive systems in the presence of bounded disturbances and parameter variations. Fractional adaptive systems are analyzed using the error model approach, to give generality ...
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(Elsevier, 2016)We study existence and uniqueness of weak solutions to (F) partial derivative(t)u+(-Delta)(alpha)u+h(t, u) = 0 in (0,infinity) xR(N), with initial condition u(0, center dot) -nu in R-N, where N >= 2, the operator (-Delta)(alpha) ...
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Fractional order controllers for throughput and product quality control in a grinding mill circuit (Elsevier, 2020)This paper presents the design and application of a multiple-input–multiple-output fractional order proportional-integral (MIMO FOPI) controller to a grinding mill circuit. The MIMO FOPI controller pa- rameters are tuned ...
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(Universidad de Chile, 2014)This thesis deals with two different problems: in the first one, we study the large-time behavior of solutions of one-dimensional fractional Fisher-KPP reaction diffusion equations, when the initial condition is asymptotically ...
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(MDPI, 2020)This paper proposes a fractional-order sliding mode controller (FOSMC) for the robust control of a nonlinear process subjected to unknown parametric disturbances. The controller aims to ensure optimal growth in photobioreactors ...
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(Universidad de Chile, 2020)En este trabajo, nos enfocamos en ver el orden de derivación y/o integración en las ecuaciones diferenciales de adaptación paramétrica como un parámetro en sí mismo que también se puede ajustar. Esto implica el uso de ...
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(Universidad de ChileCyberDocs, 2010)Uno de los procesos del diseño de circuitos integrados digitales es la preparación de la información de las máscaras, o MDP por sus siglas en inglés (Mask Data Preparation). La preparación de máscaras recibe el diseño de ...
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(Universidad de Chile, 2017)Tanto los software de Diseño Asistido por Computadora (CAD) como las herramientas de análisis por medio del Método de Elementos Finitos (FEM) han tenido un enorme impacto en la actividad ingenieril en las últimas décadas. ...
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(Elsevier, 2017)In this study, we examine the fracture network of the Tolhuaca geothermal system located in the Southern Andean volcanic zone that may have acted as a pathway for migration and ascent of deepseated fluids under the ...
