Browsing by Title Facultad de Ciencias Físicas y Matemáticas
Now showing items 17396-17415 of 20474
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(Elsevier, 2015)We report the thickness dependence of the resistivity measured at 4 K of gold films grown onto mica atroom temperature (RT), for thickness ranging from 8 to 100 nm. This dependence was compared to theone obtained for a ...
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(Elsevier, 2015)We report the thickness dependence of the resistivity measured at 4 K of gold films grown onto mica atroom temperature (RT), for thickness ranging from 8 to 100 nm. This dependence was compared to theone obtained for a ...
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(ELSEVIER, 2005-03-16)A central question regarding thin metallic films is how does the roughness of the film affect its electrical transport properties, when its thickness is comparable to or smaller than the electron mean free path. The drive ...
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(Elsevier, 2012)We report a comparison between the resistivity measured on thin gold films deposited on mica, with predictions based upon classical theories of size effects (Drude’s, Sondheimer’s and Calecki’s), as well as predictions ...
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(Universidad de Chile, 2020)En el presente trabajo se estudian nuevas ecuaciones constitutivas no lineales para cuerpos electroelásticos que no son de Green, donde la deformación y polarización son funciones explícitas del esfuerzo y el campo eléctrico, ...
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(Universidad de Chile, 2023)La lixiviación in situ es un proceso en el que se extraen minerales del medio directamente. Cuando el medio está en el subsuelo, muchas veces, para evaluar un proyecto de lixiviación in situ, es útil conocer de antemano ...
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(Universidad de Chile, 2016)todos desarrollados en estudios previos. Para este tipo de problemas, la formEn este trabajo se desarrolla un nuevo enfoque para resolver el problema de diseño de redes no capacitadas con fuente única en base a la combinación ...
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(Universidad de Chile, 2012)Quetena corresponde a un proyecto ubicado en las proximidades de la ciudad de Calama, región de Antofagasta, perteneciente al clúster Toki, comprendido por los recursos mineros de los cuerpos principales de Quetena, Genoveva, ...
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(Universidad de ChileCyberDocs, 2010)El presente estudio trata sobre la interpretación y análisis de la Reflectometría Óptica Brillouin de Dominio Temporal (BOTDR) en su aplicación a pernos de anclaje en túneles. Su motivación surge de la búsqueda de ...
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(Elsevier, 2018-09)For design and simulation of solar energy systems, quality information about all components of solar irradiance is crucial. In cases when only global irradiance measurements are available, separation models are a useful ...
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(EDP Sciences, 2017-05)Aims. Our long-term aim is to derive model-independent stellar masses and distances for long period massive binaries by combining apparent astrometric orbit with double-lined radial velocity amplitudes (SB2). Methods. ...
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(Universidad de Chile, 2022)The $^{12}$CO rotational lines in protoplanetary discs are good tracers of the total spatial extension of the gas component and potentially planet-disc interactions. This work analyses ALMA long-baseline observations of ...
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(Oxford University Press on behalf of the Royal Astronomical Society Downloaded from http://mnras.oxfordjournals.org/ at Universidad de Chile on January 22, 2014, 2013)The majority of debris discs discovered so far have only been detected through infrared excess emission above stellar photospheres. While disc properties can be inferred from unresolved photometry alone under various ...
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(Oxford University Press, 2020)The rho Oph molecular cloud is one of the best examples of spinning dust emission, first detected by the cosmic background imager (CBI). Here, we present 4.5 arcmin observations with CBI 2 that confirm 31 GHz emission from ...
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(Cambridge University Press, 2016-04)Resolved observations are bringing new constraints on the origin of radial gaps in protoplanetary disks. The kinematics, sampled in detail in one case-study, are indicative of non-Keplerian flows, corresponding to warped ...
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(Oxford University Press, 2020)Magellanic Bridge C (MB-C) is a metal-poor (similar to 1/5 Z(circle dot)) low-density star-forming region located 59 kpc away in the Magellanic Bridge, offering a resolved view of the star formation process in conditions ...
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(EDP Sciences, 2015)Context. The mass-loss process in Mira stars probably occurs in an asymmetric way where dust can form in inhomogeneous circumstellar molecular clumps. Following asymmetries along the pulsation cycle can give us clues about ...
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(Royal Astronomical Society, 2015)There is much evidence that planet formation is occurring in the disc around the Herbig Be star HD100546. To learn more about the processes occurring in this disc, we conducted high-resolution imaging at 43/45 GHz with the ...
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(IOP Publishing, 2022)The sharpest optical images of the R136 cluster in the Large Magellanic Cloud are presented, allowing us for the first time to resolve members of the central core, including R136a1, the most-massive star known. These data ...
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(IOP, 2020)FU Orionis objects are low-mass pre-main sequence stars characterized by dramatic outbursts several magnitudes in brightness. These outbursts are linked to episodic accretion events in which stars gain a significant portion ...
