Repositorio Académico de la Universidad de Chile: Recent submissions
Now showing items 35241-35260 of 98571
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(MDPI AG, 2017)© 2018 by the authors. This paper proposes an active splitting scheme especially suitable for longitudinal power systems (LPS). The proposed scheme is based on a modified out-of-step (OOS) algorithm combined with an angle ...
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(Springer Verlag, 2018)This work addresses the study of Chilean Internet robustness in how an outage at the physical layer (Internet backbone) affects the upper layer (BGP network) that routes from/to Internet Service Providers. We propose a ...
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(Springer Verlag, 2018)Sherali and Adams (SIAM J Discrete Math 3:411–430, 1990) and Lovász and Schrijver (SIAM J Optim 1:166–190, 1991) developed systematic procedures to construct the hierarchies of relaxations known as lift-and-project methods. ...
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(Springer, 2018)We give a full characterization of nonsmooth Lyapunov pairs for perturbed sweeping processes under very general hypotheses. As a consequence, we provide an existence result and a criterion for weak invariance for perturbed ...
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(Elsevier B.V., 2018)The Aysen region, located in Southern Patagonia, Chile (43°38′S to 49°16′S) has optimum conditions for the formation of geothermal systems: Magmatic processes, abundant rainfall and active faults systems. In fact, several ...
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(Oxford University Press, 2018)We describe an update to the Herschel-Spectral and Photometric Imaging Receiver (SPIRE) Fourier-transform spectrometer (FTS) calibration for extended sources, which incorporates a correction for the frequency-dependent ...
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(Elsevier GmbH, 2018)Amorphous indium tin oxide (ITO) thin films with reduced to 50 mass% indium oxide content were prepared by direct current (DC) sputtering of ITO target in mixed argonoxygen atmosphere onto glass substrates preheated at ...
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(Institute of Physics Publishing, 2018)Hydroxyl (OH) is expected to be abundant in diffuse interstellar molecular gas because it forms along with H2 under similar conditions and forms within a similar extinction range. We have analyzed absorption measurements ...
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(Elsevier Ltd, 2018)In order to further understand the controls on the structural configuration of inverted basins, previous research has vastly explored the role of rift-stage stress field variations on the resulting structure produced by ...
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(Academic Press, 2018)The optimization of biological nitrogen removal (BNR) in sequencing batch reactors has become the aim of researchers worldwide in order to increase efficiency and reduce energy and operating costs. This research has focused ...
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(Elsevier B.V., 2018)We present a strategy for the on-line estimation of the aerobic reaction phase length for a partial nitrification process with pH and dissolved oxygen closed-loop control. To overcome existing drawbacks associated to partial ...
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(Institute of Physics Publishing, 2018)We use particle-in-cell (PIC) simulations of a collisionless, electron–ion plasma with a decreasing background magnetic field, B, to study the effect of velocity-space instabilities on the viscous heating and thermal ...
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(Cambridge University Press, 2018)We consider the parabolic one-dimensional Allen-Cahn equation ut = uxx + u(1-u2), (x, t) R x (-0]. The steady state w(x) = tanh(x/2) connects, as a 'transition layer', the stable phases-1 and +1. We construct a solution u ...
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(IEEE Computer Society, 2018)Even though the concept of resilience is becoming widely used in electric power systems, there is no consensus on how to systematically model or quantify it. This article begins by proposing a classification for different ...
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(Institute of Physics Publishing, 2018)Modern extragalactic molecular gas surveys now reach the scales of star-forming giant molecular clouds (GMCs; 20–50 pc). Systematic variations in GMC properties with galaxy environment imply that clouds are not ...
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(Pontificia Universidad Catolica de Chile, Escuela de Construccion Civil, 2018)In recent years, there has been growing public and private interest in Chile in implementing plans promoting the use of Building Information Modeling. However, the lack of local studies hinders the creation of policies ...
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(Elsevier B.V., 2018)Long-established and widespread mining activities in the Northern Atacama Region of Chile have historically impacted the environment. Most notably, the Potrerillos and El Salvador mines, until 1976, were responsible for ...
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(Oxford University Press, 2017)We present Atacama Large Millimeter/sub-millimeter Array (ALMA) observations of the star-forming environment surrounding V1647 Ori, an outbursting FUor/EXor pre-MS star. Dust continuum and the (J = 2 − 1) 12CO, 13CO, ...
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(Elsevier Ltd, 2018)System states are related, directly or indirectly, to health condition indicators. Indeed, critical system failures can be efficiently characterized through a state space manifold. This fact has encouraged the development ...
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(Public Library of Science, 2018)The HIV care cascade has improved in Latin America over the last decade. However, the influence of alcohol and noninjected drug use (NIDU) on cascade outcomes is mostly unknown. This study estimated the association of ...
