Browsing by Title Facultad de Ciencias Físicas y Matemáticas
Now showing items 13793-13812 of 20341
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(IEEE, 2014)Early detection of fall risk can reduce health costs associated with surgery, rehabilitation, imaging studies, hospitalizations, and medical evaluations. This paper proposes a measurement-focused study oriented to ...
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(IEEE, 2017)As part of transmission network expansion planning(TNEP), a technical and economical assessment of several planningalternatives must be performed in order to ensure fulfillment of thenetwork security criteria and to estimate ...
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(Elsevier, 2014)In this work we propose a new model to simulate biofilm structures (‘‘finger-like’’, as well as, compact structures) as a result of microbial growth in different environmental conditions. At the same time, the numerical ...
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(IEEE, 2022)Wireless communication systems working in millimeter-wave (mmWave) frequency bands offer higher bandwidths than traditional radio frequency schemes. This technology allows multibeam steering and data multiplexing with the ...
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(Elsevier, 2013)In an effort to study innovative multifunctional molecular materials, two new coordination compounds have been designed containing MnII as a metallic source and a specific curcuminoid called 9Accm as a chelating ligand. ...
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(ACADEMIC PRESS INC ELSEVIER SCIENCE, 2007-04)A new synthesis route to obtain high-purity cupric oxide, CuO, using the hydrothermal reaction of copper sulfide and a NaOH solution in an oxygen atmosphere has been developed. The synthesized products showed nanoplatelet-like ...
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(IOP Publishing, 2015)We present a new method to discriminate periodic from nonperiodic irregularly sampled light curves. We introduce a periodic kernel and maximize a similarity measure derived from information theory to estimate the periods ...
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(SpringerOpen, 2019)© 2019, The Author(s). The Modified Mercalli intensity scale (Mercalli scale for short) is a qualitative measure used to express the perceived intensity of an earthquake in terms of damages. Accurate intensity reports are ...
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(ELSEVIER, 2006-08-15)The aim of edge modification problems is to change the edge set of a given graph as little as possible in order to satisfy a certain property. Edge modification problems in graphs have a lot of applications in different ...
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(Oxford University Press on behalf of the Royal Astronomical Society, 2013)The discovery and subsequent detailed study of T dwarfs have provided many surprises and pushed the physics and modelling of cool atmospheres in unpredicted directions. Distance is a critical parameter for studies of ...
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(Universidad de Chile, 2013)Este trabajo analiza el problema de la nucleación de cobre en el proceso de electrodepo- sición, la formación de estructuras bi y tridimensionales en la superficie de un sustrato, de manera de determinar las características ...
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(ELSEVIER SCIENCE BV, 2005-06-13)Neutron and proton densities in the nuclear periphery are investigated within (p,n) charge-exchange isobar transitions. For this purpose we have developed parameter-free optical potentials (1)) with a detailed treatment ...
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(2015-03)We present spectra of the nuclear regions of 50 nearby (D = 1–92 Mpc, median = 20 Mpc) galaxies of morphological types E to Sm. The spectra, obtained with the Gemini Near-IR Spectrograph on the Gemini North telescope, ...
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(IOP Publishing, 2015)We present spectra of the nuclear regions of 50 nearby (D = 1-92 Mpc, median = 20 Mpc) galaxies of morphological types E to Sm. The spectra, obtained with the Gemini Near-IR Spectrograph on the Gemini North telescope, cover ...
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(2000)The control of the microstructure of BaTiO3 films grown on titanium by the hydrothermal–electrochemical method was investigated. Experiments were conducted in a three-electrode high-pressure electrochemical cell in a ...
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Nucleation and selective growth of polymorphs of calcium carbonate on organic-inorganic hybrid films (SOC CHILENA QUIMICA, 2008-03)Inorganic/organic ternary hybrid films that are constituted of gelatin (G), poly(monomethyl itaconate) (PMMI) and silica (SiO2), are used as a solid matrix to study the crystalization of calcium carbonate (CaCO3). These ...
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(MDPI AG, 2019)We studied and compared the nucleolar expression or nucleoli from specific bivalents in spermatocytes of the standard Mus musculus domesticus 2n=40, of Robertsonian (Rb) homozygotes 2n = 24 and heterozygotes 2n = 32. We ...
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(American Astronomical Society, 1996-06)We study optical spectra in high and low activity states of the faint, distant Seyfert 1 galaxy C16.16. A strong stellar population contribution to the continuum is observed, even in the high-state spectrum. The low- ...
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(Universidad de Chile, 2022)El gran incremento de proyectos fotovoltaicos, especialmente proyectos PMGD han ocasionado que se puedan producir congestiones en los transformadores de poder que llevan la energía al sistema interconectado, lo cual a su ...
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(Universidad de Chile, 2013)Tradicionalmente, la estimación de la resistencia de pilares de roca se efectúa mediante fórmulas empíricas, que relacionan la resistencia a la compresión uniaxial de la roca, la calidad de la roca y las dimensiones del ...
