Browsing by Title Facultad de Ciencias Físicas y Matemáticas
Now showing items 18831-18850 of 20505
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(Universidad de Chile, 2023)Recently, in the last 15 years, porous structures have been proposed as an interesting solution in the design of high-temperature energy storage and exchange systems, both for applications in concentrated solar power (CSP) ...
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(Universidad de Chile, 2023)Global warming is one of the biggest threats to civilization, the greenhouse gases (GHGs) in the atmosphere increase the absorbed solar radiation, increasing the global temperature. In Chile, the transport industry has ...
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Study of multiple draw-zone interaction in block caving mines by means of a large 3D physical model (PERGAMON-ELSEVIER SCIENCE LTD, 2008-10)Current production level design guidelines in block caving mines are based on the concept of interaction of movement zones and the spacing of draw-points at which mass flow is achieved. The limit of the isolated movement ...
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(Elsevier, 2020)The present investigation reports the modification of Ti substrates by a plasma technique to enhance their physio-chemical properties as biocompatible substrates for the deposition of artificial membranes. For that purpose, ...
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(Universidad de Chile, 2016)El propósito de esta tesis es el estudio de algunos problemas que surgen desde la ingeniería de bioprocesos. En particular, el análisis del comportamiento y el cultivo óptimo de microalgas y la conexión de múltiples ...
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(Universidad de Chile, 2022)Nuestro conocimiento del Sistema Solar ha aumentado mucho el último tiempo, desde la caracterización de millones de cuerpos del Cinturón de Asteroides hasta el número cada vez mayor de objetos transneptunianos descubiertos. ...
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(Instituto Nacional de Salud, 2019)Introduction: CYP2C9 metabolizes approximately 15% of the prescribed drugs. Its gene has alleles whose frequencies differ between ethnic groups and populations. The alleles CYP2C9*2 and CYP2C9*3, account for an enzyme with ...
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(Elsevier Ltd, 2019)© 2018 Elsevier Ltd One of the strongest factors that affects the volatile profile of sparkling wine is the winemaking process. Here we focus on determining the effects of the second fermentation and aging on lees of ...
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(Universidad de Chile, 2023)Comprender cómo evolucionan las galaxias a lo largo del tiempo es la clave para entender cómo crecieron estos sistemas a partir de pequeñas perturbaciones impresas en el fondo cósmico de microondas (CMB) hasta las galaxias ...
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(2011)From a sample of 12 well-observed Type Ia supernovae, we find clear evidence of correlations between early phase (U − B), (V − R), and (V − I) colors and the velocity shifts of the [Fe II] λ7155 and [Ni II] λ7378 nebular ...
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(2012)We present the results of a new study of the molecular gas associated with the ‘extended green object’ (EGO) G35.03+0.35. This object, very likely a massive young stellar object, is embedded in amolecular cloud at the ...
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(2007)It is widely accepted that cholesterol plays an important role in the infiltration and entrapment of low density lipoprotein (LDL) in the blood vessel walls (atherogenesis). The transport of cholesterol and other lipids ...
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(Institute of Physics Publishing, 2018)ZnS thin films grown by the chemical bath deposition method have been under intense investigation due to their applications in solar cells. In this work, the early growth stages of ZnS thin films deposited by means of a ...
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Study of the effect of branching in degradation of polyethylenes obtained via metallocene catalyst (SOC CHILENA QUIMICA, 2008-06)Polyethylenes, homo and copolymers obtained via metallocene catalyst, were synthesized and used to study the effect of comonomer size and content in the main linear backbone polymer on its degradation. Homoethylene metallocene ...
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(American Society Testing Materials, 2017)The objective of the paper is to study the shear stiffness of Bio Bio sand. To this end, a system to measure the travel time of shear waves in Bio Bio sand samples using bender elements was designed and setup in an adapted ...
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(Copernicus, 2020)The description of the relationship between interplanetary plasma and geomagnetic activity requires complex models. Drastically reducing the ambition of describing this detailed complex interaction and, if we are interested ...
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(American Institute of Physics Inc., 2018)An MHD shell model is used to describe the dissipative events that take place in magnetized plasmas. We analyze the activity of the time series of the magnetic energy dissipation rate obtained in the MHD shell model, which ...
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(Universidad de Chile, 2012)Por más de un siglo se ha llevado a cabo investigación referente al campo del flujo gravitacional a través de variadas herramientas. De hecho, casi todas las minas operadas por métodos basados en hundimiento o explotadas ...
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(MDPI, 2021)Featured Application This study indicates that the shape of the pulsatile pressure has great effect on hemodynamics and therefore in the future it should be considered in the clinical treatment of cerebral aneurysms. ...