Browsing by Title Facultad de Ciencias Físicas y Matemáticas
Now showing items 20440-20459 of 20545
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(Universidad de Chile, 2019)Cuando un prospecto minero se superpone con un área protegida, la empresa minera no solo debe comprometerse a reducir al mínimo el potencial impacto que esta actividad pueda causar al medio ambiente, sino que también debe ...
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(Taylor & Fracis, 2020)Using a statistical approach, Scheihing attempts to demonstrate the direct influence of recharge events in the Precordillera and the Andean Piedmont on water table variations in downstream alluvial fans. The author ...
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(Academic Press, 2019)In the hyperarid Atacama Desert (Northern Chile), the economic and social development is supported using fossil groundwater. The groundwater extraction (GWE)has significantly increased over the last 30 years, reaching ∼4.2 ...
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(Elsevier, 2018-07-15)In this work, Ag and Ni metals incorporation effect on the water adsorption and physicochemical properties of 5A zeolite was studied. For that, Ag/5A and Ni/5A zeolites with different amounts of metal (4, 10 and 20 wt%) ...
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(The American Astronomical Society, 2013)Water is key in the evolution of protoplanetary disks and the formation of comets and icy/water planets. While high-excitation water lines originating in the hot inner disk have been detected in several T Tauri stars ...
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(International Solar Energy Society, 2020)
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(Universidad de Chile, 2015)En este trabajo se aborda el problema de existencia de algunos tipos de soluciones para las ecuaciones de ondas en el agua así como la relación que existe entre estas soluciones y la forma de un fondo impermeable sobre la ...
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(MDPI, 2021)Given its potentialities and characteristics, energy generation, food production, and water availability have a strong interdependency and correlation. Water is needed to produce energy and food, while energy is required ...
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(Wiley, 2017)The results of an experimental study on the oxygen transfer across the air-water interface under the combined effect of wind and mechanically generated waves are presented in the paper. The experiments were carried out in ...
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(American Physical Society, 2020)We report on the enhancement of the hydrodynamic damping of gravity waves at the surface of a fluid layer as they interact with a turbulent vortex flow in a sloshing experiment. Gravity surface waves are excited by oscillating ...
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(Springer, 2012)The wave friction factor is commonly expressed as a function of the horizontal water particle semi-excursion (Awb) at the top of the boundary layer. Awb, in turn, is normally derived from linear wave theory by UwbTw 2p ...
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(Springer, 2022)This paper deals with the coupling between one-dimensional heat and wave equations in unbounded subdomains, as a simplified prototype of fluid-structure interaction problems. First we apply appropriate artificial boundary ...
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(Elsevier, 2015)The wavelet tree is a flexible data structure that permits representing sequences S[1, n] of symbols over an alphabet of size sigma, within compressed space and supporting a wide range of operations on S. When sigma is ...
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(Universidad de Chile, 2017)Durante los últimos años, el avance de la tecnología de captura y almacenamiento ha generado un volumen sin precedentes de imágenes digitales almacenadas en las bases de datos. Esto plantea el desafío de desarrollar sistemas ...
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(Elsevier, 2014)The wavelet tree is a versatile data structure that serves a number of purposes, from string processing to geometry. It can be regarded as a device that represents a sequence, a reordering, or a grid of points. In ...
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(Heldermann Verlag, 2019)© 2019 Heldermann Verlag. All rights reserved.In this work we prove that if X is a complete locally convex space and {equation presented} is a function such that f -x∗attains its minimum for every x∗∈ U, where U is an open ...
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(The American Astronomical Society, 2010-09-28)We present Gemini-North K-band spectra of two representative members of the class of high-redshift quasars with exceptionally weak rest-frame ultraviolet emission lines (WLQs), SDSS J114153.34+021924.3 at z = 3.55 and SDSS ...
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Weak signal enhancement by nonlinear resonance control in a forced nano-electromechanical resonator (Nature, 2020)Driven non-linear resonators can display sharp resonances or even multistable behaviours amenable to induce strong enhancements of weak signals. Such enhancements can make use of the phenomenon of vibrational resonance, ...
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(Elsevier, 2018)In this paper, we study the elliptic problem with Dirac mass { -Delta u = Vu(p) + k delta(0) in R-N, (1) lim(vertical bar x vertical bar ->+infinity) u(x) = 0, where N > 2, p > 0, k > 0, delta(0) is the Dirac ...
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(Wiley-V C H Verlag GMBH, 2016)In this paper we prove the existence of weak solutions for the inclusion problem in anti-plane Cosserat elasticity in Sobolev space setting, and for the corresponding systems of boundary integral equations.
