Facultad de Ciencias Físicas y Matemáticas: Recent submissions
Now showing items 3821-3840 of 22295
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(IOP, 2022)High dust density in the midplane of protoplanetary disks is favorable for efficient grain growth and can allow fast formation of planetesimals and planets, before disks dissipate. Vertical settling and dust trapping in ...
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(Oxford, 2022)We investigate the abundance and distribution of metals in the high-redshift intergalactic medium and circum-galactic medium through the analysis of a sample of almost 600 Si iv absorption lines detected in high and ...
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(IOP, 2022)We report Hubble Space Telescope Cosmic Origins Spectrograph spectroscopy of 10 quasars with foreground starforming galaxies at 0.02 < z < 0.14 within impact parameters of ∼1–7 kpc. We detect damped/sub-damped Lyα (DLA/sub-DLA) ...
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(IOP, 2022)We report the first 3D kinematical measurements of 88 stars in the direction of several recently discovered substructures in the southern periphery of the Large Magellanic Cloud (LMC) using a combination of Gaia proper ...
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(MDPI, 2022)Underground Mining (UM) is a hostile industry that generally requires a wireless communication system as a cross-cutting axis for its optimal operation. Therefore, in the last five years, it has been shown that, in addition ...
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(Elsevier, 2022)The Atacama Desert is a unique landscape to understand the evolution of the Earth in extremely arid environments. Clay pans are crucial to comprehend the surface and subsurface processes in areas limited by water availability. ...
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(Springer, 2022)Despite numerous experimental and theoretical studies reported in the literature, surface micro-texturing to control friction and wear in lubricated tribo-contacts is still in the trial-and-error phase. The tribological ...
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Improvement of thermal stability of highly active species on SiO2 supported copper-ceria catalysts (Royal Soc Chemistry, Englandroyal so, 2021)CuO–CeO2/SiO2 catalysts lose activity when they are calcined at 600 C and temperatures above. This loss of activity was related to a decrease in the amount of highly dispersed Cu species interacting with Ce (CuO– CeO2 ...
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(Springer, 2021)Low cycle fatigue life of high-strength reinforcing steel bars (ASTM A706 Grade 80), using photogrammetry by RGB methodology is evaluated. Fatigue tests are performed on specimens under constant axial displacement with ...
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(Frontiers Media, 2021)The ocean off south-central Chile is subject to seasonal upwelling whose intensity is mainly controlled by the latitudinal migration of the southeast Pacific subtropical anticyclone. During austral spring and summer, the ...
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High- and low-latitude forcings drive Atacama desert rainfall variations over the past 16,000 years (Amer Assoc Advancement Science, 2021)Late Quaternary precipitation dynamics in the central Andes have been linked to both high- and low-latitude atmospheric teleconnections. We use present-day relationships between fecal pellet diameters from ashy chinchilla rats ...
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(Springernature, England, 2021)The Candelaria iron oxide-copper-gold deposit in Chile was formed by superimposed, episodic hydrothermal pulses with contrasting composition and temperature, according to micro-textural and compositional variations in ...
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(Frontiers Media, 2022)The COVID-19 pandemic continues to impact schools and how education is conveyed to students. One of the aspects that has gained strength is supporting the wellbeing of educational communities. The purpose of this study was ...
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(Elsevier, 2022)Intelligent buildings play a fundamental role in achieving efficient energy management in the building sector in many countries worldwide. Improving energy consumption within a building can represent significant financial ...
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(MDPI, 2021)This paper describes an autonomous loading system for load-haul-dump (LHD) machines used in underground mining. The loading of fragmented rocks from draw points is a complex task due to many factors including: bucket-rock ...
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(Royal Soc Chemistry, 2022)Research in modern data-driven dynamical systems is typically focused on the three key challenges of high dimensionality, unknown dynamics and nonlinearity. The dynamic mode decomposition (DMD) has emerged as a cornerstone ...
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(Assoc Computing Machinery, 2022)Graduality and parametricity have proven to be extremely challenging notions to bring together. Intuitively, enforcing parametricity gradually requires possibly sealing values in order to detect violations of uniform ...
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(Sage, 2022)This article introduces MACEDA, a micro-level data set on the self-determination (SD) conflict between the Chilean state and the indigenous Mapuche. Although SD disputes are one of the most common conflicts in the world, ...
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(Springer, 2021)The importance of environmental geochemistry baseline in soils of O ' Higgins Region, Chile, since it hosts in its eastern area one of the major Cu-Mo producing mines in the country, is to establish and explain relationships ...
