Browsing by Title Facultad de Ciencias Físicas y Matemáticas
Now showing items 13440-13459 of 20342
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(Universidad de Chile, 2018)El paradigma del aprendizaje reforzado (RL \footnote{Por sus siglas en inglés: Reinforcement Learning}) está siendo recurrentemente utilizado para aprender tareas complejas en contextos aplicativos como la robótica. No ...
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(Cambridge Univ Press, 2020)In this paper, we are concerned with unbounded solutions of the singularly perturbed forced pendulum equation in the presence of friction, namely e(2)u(x)" e + sinue = e2a( t)ue + e2 beta(t)u e in (- L, L). Using a limiting ...
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(2016)Decision-making for sustainable design requires the evaluation of different options considering all sustainability dimensions simultaneously: economic, environmental and social. Each dimension has a specific relative ...
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(Springer, 2010)The multi-Gaussian model is used in geostatistical applications to predict functions of a regionalized variable and to assess uncertainty by determining local (conditional to neighboring data) distributions. The ...
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(Elsevier, 2015)The purpose of this study is to identify the effect of ordinary and simple multi-Gaussian kriging (oMK, sMK) estimation methods for the delineation of iron mineralized zones based on subsurface data using Concentration-Volume ...
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(Elsevier, 2018)The maximum entropy method (MEM) is a well known deconvolution technique in radio-interferometry. This method solves a non-linear optimization problem with an entropy regularization term. Other heuristics such as CLEAN are ...
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(Universidad de Chile, 2022)This work proposes a hierarchical Bayesian framework to identify electromechanical properties of Piezoelectric Energy Harvesters (PEHs) and associated uncertainties based on experimental frequency response functions (FRFs). ...
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(IOP Publishing Ltd., 2017)On 2017 August 17 a binary neutron star coalescence candidate (later designated GW170817) with merger time 12:41:04 UTC was observed through gravitational waves by the Advanced LIGO and Advanced Virgo detectors. The Fermi ...
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(Universidad de Chile, 2019)En este trabajo se evaluarán distintos algoritmos de trackeo para el problema de seguimiento de peatones, donde teniendo un video obtenido de una camara de seguridad, nos interesa reconocer correctamente cada individuo a ...
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(IEEE Access, 2021)Hybrid AC/DC microgrids are of special interest for energization due to their exibility, low infrastructure investments, reduced conversion losses, and reliability against failures on the utility grid. In these systems, ...
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(Elsevier, 2014)Lithium-battery energy storage systems (LiBESS) are increasingly being used on electric mobility and stationary applications. Despite its increasing use and improvements of the technology there are still challenges ...
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(Elsevier, 2016)tOptical flow methods are among the most accurate techniques for estimating displacement and velocityfields in a number of applications that range from neuroscience to robotics. The performance of any opticalflow method ...
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(Elsevier, 2018)Domestic water heating in Brazil is commonly done by electric showerheads, characterized by a large installed capacity and a low load factor. In that regard, consumers and utility companies present opposite interests, the ...
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(Elsevier Ltd, 2018)A proper assessment of heating systems for swimming pools should evaluate the compromise between comfortlevel and the willingness to pay for it. The present work presents a multi-objective optimization of indirect solarassisted ...
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(Elsevier, 2019)Energy storage systems can cost-effectively balance fluctuations from renewable generation. Also, hydropower dams can provide flexibility, but often cause massive fluctuations in flow releases (hydropeaking), deteriorating the ...
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(Universidad de Chile, 2020)En modelos Bayesianos no paramétricos, los procesos Gaussianos (GP) son un pilar en los problemas de regresión, los cuales se benefician de la estadística Bayesiana, mostrando propiedades atractivas, tales como ser un prior ...
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(Springer, 2017)Discord Discovery is a recent approach for anomaly detection in time series that has attracted much research because of the wide variety of real-world applications in monitoring systems. However, finding anomalies by ...
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(Springer Nature, 2019)It is well accepted that the tribological performance of surfaces can be directly correlated with their energy efficiency and lifetime. Consequently, surface patterning has gained great attention to manipulate friction and ...
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(Emerald Group Publishing Ltd., 2019)Purpose: The paper aims to investigate the possibilities to control friction in lubricated systems by surface patterning, making use of a multi-scale approach. Surface patterns inside the tribological contact zone tend to ...
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(Elsevier, 2016)Microalgae are a source of biomass that has aroused the interest of the bioenergy industry due to its sustainability potential and maximum use of different abundant natural resources. This research proposes an energy-economic ...