Facultad de Ciencias Físicas y Matemáticas: Recent submissions
Now showing items 6601-6620 of 21971
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(Universidad de Chile, 2019)El presente documento es realizado en la empresa Colbún S.A. (generadora y distribuidora de energía eléctrica), bajo la Gerencia de TI. El caso de estudio nace a partir de una serie de eventos del mercado eléctrico tanto ...
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(Elsevier, 2020)Usually in block and panel caving mines, when the caving connects to the surface, monitoring of vertical stresses over production drifts is minimal due to the low probability of seismic events. However, when the stresses ...
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(Taylor & Francis, 2020)In this paper, we present an automatic method, without human supervision, for the detection and classification of blue whale vocalizations from passive acoustic monitoring (PAM) data using Hidden Markov Model technology ...
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(Universidad de Chile, 2019)La introducción de herramientas de Machine Learning para resolver problemas de Big Data, han creado diversas oportunidades, en particular en la industrial del retail. Esta tesis está dividida en dos ensayos donde se usan ...
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(Universidad de Chile, 2019)El presente estudio se centra en la elaboración de un modelo de madurez para las iniciativas de datos abiertos de las instituciones del Gobierno de Chile. Este modelo identifica “Dimensiones”, “Variables” y “Niveles de ...
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The economics of automated public transport: Effects on operator cost, travel time, fare and subsidy (Elsevier, 2020)It is currently unknown in which city environments, automated vehicles could be deployed at reasonable speeds, given safety concerns. We analytically and numerically assess the impact of automation for optimal vehicle size, ...
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(Elsevier, 2020)Previous real-time crash prediction models have scarcely used data disaggregated by vehicle type such as light, heavy and motorcycles. Thus, little effort has been made to quantify the impact of flow composition variables ...
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(Elsevier, 2020)The evaluation of the depth of brittle failure around excavations is of major importance in order to optimize the design of underground excavations and ensure the safety of workers and equipment. The current proposed ...
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(Springer, 2020)The Atacama Desert is one of the oldest and driest places on Earth. In the last decade, microbial richness and diversity has been acknowledged as an important biological resource of this region. Owing to the value of the ...
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(Elsevier, 2020)We examine a fractional version of the discrete nonlinear Schrodinger (dnls) equation, where the usual discrete laplacian is replaced by a fractional discrete laplacian. This leads to the replacement of the usual ...
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(Taylor & Francis, 2020)Stress relaxation plays an important role in the design of underground stopes. The aim of this paper is to assess the stope stability in connection with the stress relaxation using a classification approach. Three types ...
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(Elsevier, 2020)Community Question Answering (cQA) sites have emerged as platforms designed specifically for the exchange of questions and answers among communities of users. Although users tend to find good quality answers in cQA sites, ...
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Vector Lyapunov-like functions for multi-order fractional systems with multiple time-varying delays (Elsevier, 2020)In this paper, a general method to establish the asymptotic behaviour of solutions to multi-order multiple time-varying delays nonlinear systems is proposed. The method, relying on vector Lyapunov-like functions and on ...
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(Elsevier, 2020)In this position paper we argue that transport decisions are intimately linked with the assignment of available time to activities, and that a full understanding of the so-called value of travel time savings (VTTS) requires ...
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(IOS Press, 2020)More than two decades have passed since the establishment of the initial cornerstones of the Semantic Web. Since its inception, opinions have remained divided regarding the past, present and potential future impact of the ...
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(Elsevier, 2020)This paper proposes a methodology for measuring the quality of employment from a multidimensional and public policy perspective in Latin American developing countries (Argentina, Bolivia, Brazil, Chile, Colombia, Ecuador, ...
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(BMC, 2020)Background Hexanucleotide repeat expansions of the G(4)C(2) motif in a non-coding region of the C9ORF72 gene are the most common genetic cause of amyotrophic lateral sclerosis (ALS) and frontotemporal dementia (FTD). Tissues ...
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(Frontiers Media, 2020)The oxidation state of the Earth's mantle and its partial melting products exert a key control on the behavior and distribution of sulfur and chalcophile and siderophile elements between the mantle and crust, underpinning ...
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(Elsevier, 2020)Reduction of Fe-phases in a slag from the copper smelting process is studied for its use as a catalyst in methanation of carbon oxide (CO). This material contains 36.4 wt% Fe and the main Fe-phases in its fresh and reduced ...
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(EDP Sciences, 2020)Context. Cloud-scale surveys of molecular gas reveal the link between giant molecular cloud properties and star formation across a range of galactic environments. Cloud populations in galaxy disks are considered to be ...
