Repositorio Académico de la Universidad de Chile: Recent submissions
Now showing items 38301-38320 of 101786
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(Elsevier Ltd, 2018)We describe the stratigraphy, age, constituent geochemistry and phenocryst thermobarometry of a closely spaced Holocene tephra couplet from Volcán Melimoyu (VMm), located in the Northern Patagonian Andes. The lower tephra ...
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(MDPI AG, 2018)The El Callao district, with a total endowment of more than 2000 t Au, is considered to be the most prolific gold resource in Venezuela. Mineralization is hosted by a vein system that is genetically associated with the ...
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(Blackwell Publishing Ltd, 2018)The plate interface beneath the Mejillones Peninsula in Northern Chile is characterized by anomalous seismogenic behaviors, with seismic and aseismic slip, and low coupling values. We analyze this zone through the ...
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(Springer Berlin Heidelberg, 2018)
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(Schloss Dagstuhl- Leibniz-Zentrum fur Informatik GmbH, Dagstuhl Publishing, 2018)Given a set of n jobs with integral release dates, processing times and weights, it is a natural and important scheduling problem to compute a schedule that minimizes the sum of the weighted flow times of the jobs. There ...
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Energy-Efficient transmission strategies with multiple radios in cognitive radio: Beyond rendezvous (Institute of Electrical and Electronics Engineers Inc., 2018)Cognitive radio (CR) has emerged as a key technology to deal with the frequency spectrum scarcity. The efficient and opportunistic use of the spectrum requires rapid coordination between the secondary users (SUs). Besides, ...
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(Universidad de Chile, 2018-04)Hay amplia evidencia q ue las diferencias en los resultados terapéuticos entre tipos de tratamiento se deben principalmente al efecto terapeuta, es decir, algunos terapeutas son más efectivos que otros (Wampold, 2001; ...
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(Institute of Physics Publishing, 2018)We present our statistical analysis of the connection between active galactic nuclei (AGN) variability and physical properties of the central supermassive black hole (SMBH). We constructed optical light curves using data ...
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(MDPI AG, 2018)Constructed wetlands (CW) have been widely used to treat different types of water, including acid mine drainage (AMD). However, little is known about their performance in the removal of As from AMD. In this study, a ...
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(Springer Verlag, 2018)Productive processes are the largest consumers in power systems. The energy required by these processes is usually supplied by the power grid with its associated high operative costs. In this work, we propose a methodology ...
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(Royal Society of Chemistry, 2018)This work describes the design, synthesis and physicochemical properties of the highly emissive nanocomposite [bentonite][Eu{(η5-Cp*)Ru(η6-bzac)}3Phen]0.09[H2O]0.22 based on the Eu(III) complex [Eu{(η5-Cp*)Ru(η6-bzac)}3P ...
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(CEUR-WS, 2018)Vehicular collision avoidance systems can improve road safety by means of periodic exchange of status information between neighbouring vehicles. At urban intersections, the effect of shadowing caused by buildings has a ...
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(Royal Society of Chemistry, 2018)A new probe (E)-7-(diethylamino)-3-(3-(thiophen-2-yl)acryloyl)-2H-chromen-2-one (ChC16) was synthesized and studied as a turn-on fluorescent probe, based on a Michael addition mechanism for sensing SO2 derivatives, which ...
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(Institute of Physics Publishing, 2018)Colissionless plasmas are non-extensive systems which, due to the long-range interaction between their components, are incapable of reaching thermal equilibrium, even in a steady state. These systems cannot, therefore, be ...
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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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(Institute of Physics Publishing, 2018)We present a molecular dynamics study of the mechanical properties of Zr50Cu50 glass under pure shear. The samples have 145.200 atoms with dimensions of 40 × 20 × 2 nm in the x, y and z directions, respectively. After ...
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(Elsevier Ltd, 2018)Potentially toxic elements (PTEs) are a major worldwide threat to the environment due to the constant global increase in industrial activity and urbanisation. Several studies have provided detailed maps and a better ...
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(Springer Netherlands, 2018)This brief introduction is intended to orientate the reader with respect to the principal environmental and historical features of the Atacama Desert, the oldest and continuously driest non-polar temperate desert on Earth. ...
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(Elsevier Ltd, 2018)This paper presents a method for thermal comfort control for trams which achieves the desired thermal comfort and minimises the power consumption of heating,ventilation and air conditioning (HVAC). Mathematical models of ...
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(Elsevier B.V., 2018)A method based on matrix solid-phase dispersion (MSPD) associated to gas chromatography-flame photometric detection (GC-FPD), GC-electron capture detection (GC-ECD) and GC-mass spectrometry (GC-MS) for confirmation purposes, ...
