Browsing by Title Facultad de Ciencias Físicas y Matemáticas
Now showing items 19132-19151 of 22111
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(2007)During the Late Jurassic–Early Oligocene interval, widespread hydrothermal copper mineralization events occurred in association with the geological evolution of the southern segment of the central Andes, giving rise to ...
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(American Chemical Society, 2017)The role of polymeric structures and the presence of a catalyst in the pyrolysis of polyolefin mixtures and used tires was studied in a fixed bed reactor at 450 degrees C. Our results showed that while thermal pyrolysis ...
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(Oxford University Press, 2016-03)Using a new dataset on corporate bonds placed in international markets by emerging and developed borrowers, this article demonstrates that a high proportion of short-term debt exacerbates the effect of debt market illiquidity ...
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(Universidad de Chile, 2017)The recent financial crisis from 2008-09 brought with it a lot of consequences. One of these correspond to the notorious growth in the spread of corporate bonds. According to the literature, the principal factors that ...
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(Universidad de Chile, 2014)Dada la tendencia creciente de consumo de cerveza artesanal en Chile, existe una oportunidad para los empresarios gastronómicos y hoteleros de ofrecer cerveza propia para capturar este público a través de una experiencia ...
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(Springer Netherlands, 2008-04)We report the results of a study on the weathering products of 21 meteorites found in the Atacama Desert (Chile) using room temperature 57Fe Mössbauer spectroscopy (MS). The meteorites are weathered ordinary chondrites ...
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(2003)The pH-concentration diagram for the formation of barium molybdate films on a metallic molybdenum substrate in a barium hydroxide aqueous solution has been experimentally studied.Due to the relatively large solubility of ...
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(MDPI, 2020)The time-dependent deformation of porous (La0.6Sr0.4)(0.95)Co0.2Fe0.8O3-delta (LSCF) under constant uniaxial compressive stress at room temperature has been studied. Both axial and lateral stress-strain deformation curves ...
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(Universidad de Chile, 2019)Microgrids are one of the key technologies to facilitate the integration of large amounts of renewable generation technologies to the main grid. The main power supplies inside the microgrid are power electronic devices ...
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(BLACKWELL, 2008-03)The present 0.25-hydrated form of rosiglitazone maleate [ systematic name: ( +/-)-2-({2-[2,4-dioxo-1,3-thiazolidin-5-ylmethyl) phenoxy] ethyl} methylamino) pyridinium maleate 0.25 hydrate], C18H20N3O3S+center dot C4H3O4- ...
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(2009-08-20)We present Very Large Array 1.3 cm radio continuum and water maser observations as well as Submillimeter Array SO2 (226.300 GHz) and 1.3 mm dust continuum observations toward the massive star formation region IRAS ...
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(2007)We address the problem of searching for a two-dimensional pattern in a two-dimensional text (or image), such that the pattern can be found even if it appears rotated and it is brighter or darker than its occurrence. ...
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(Nature Publishing Group, 2018)The earliest galaxies are thought to have emerged during the first billion years of cosmic history, initiating the ionization of the neutral hydrogen that pervaded the Universe at this time. Studying this 'epoch of ...
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(BLACKWELL, 2006-02-01)We have measured the rotational velocities (v sin i) of the mass donors in a number of D'-type symbiotic stars (SSs), using the cross-correlation function method. Four out of five D' SSs with known v sin i appeared to be ...
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(Southwest Missouri State University, 2017)This paper is devoted to construction of new solutions to the Cahn-Hilliard equation in ℝd. Staring from the Delaunay unduloid Dô with parameter τ ∈ (0, τ∗) we find for each sufficiently small ε a solution u of this equation ...
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(Universidad de Chile, 2016)La gran minería en Chile y el mundo ha facilitado la generación de una extensa cantidad de materiales granulares mineros tales como relaves, lastres, y ripios post-lixiviación, entre otros, los cuales han dado pie a ...
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(Elsevier, 2016)Support Vector Clustering (SVC) is an important density-based clustering algorithm which can be applied in many real world applications given its ability to handle arbitrary cluster silhouettes and detect the number of ...
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(Elsevier, 2015)Smart Grid is the modern infrastructure of the electric grid, which has the objective to improve efficiency, reliability, and security. This is achieved through the control automation of the transmission and distribution ...
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(IOP, 2021)We report the detection of three RR Lyrae (RRL) stars (two RRc and one RRab) in the ultra-faint dwarf (UFD) galaxy Centaurus I (Cen I) and two Milky Way (MW) δ Scuti/SX Phoenicis stars based on multi-epoch giz ...
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(Universidad de Chile, 2015)En el presente trabajo el objetivo general es definir el concepto de Responsabilidad Social Industrial (RSI) y revisar los indicadores de sustentabilidad en base a este concepto de la industria salmonera chilena. Se ...
