Browsing by Title Artículos de revistas

Now showing items 710-729 of 7549

    • Antithetic random fields applied to mine planning under uncertainty 
      Nelis, Gonzalo; Ortiz, Julian; Morales, Nelson (Elsevier Ltd, 2018)
      Traditional practice in mine planning often relies on estimation techniques that fail to account for the intrinsicuncertainty of geology and grades, which may have significant consequences in the mine operation. Dealing ...
    • AOT Retrieval Procedure for Distributed Measurements With Low-Cost Sun Photometers 
      Toledo, F.; Garrido, C.; Díaz, M.; Rondanelli, R.; Jorquera S., Leila; Valdivieso, P. (Blackwell Publishing Ltd, 2018)
      We propose a new application of inexpensive light-emitting diode (LED)-based Sun photometers, consisting of measuring the aerosol optical thickness (AOT) with high resolution within metropolitan scales. Previously, these ...
    • Aperture effects on the oxygen abundance determinations from califa data 
      Iglesias Páramo, J.; Vilchez, J. M.; Rosales Ortega, F. F.; Sánchez, S. F.; Duarte Puertas, S.; Petropoulou, V.; Gil de Paz, A.; Galbany, Lluis; Molla, M.; Catalán Torrecilla, C.; Castillo Morales, A.; Mast, D.; Husemann, B.; García Benito, R.; Mendoza, M. A.; Kehrig, C.; Pérez Montero, E.; Papaderos, P.; Gomes, J.; Walcher, C. J.; González Delgado, R. M.; Marino, R. A.; López Sánchez, Ángel R.; Ziegler, B.; Flores H., Juan Carlos; Alves, J. (IOP Publishing, 2016)
      This paper aims to provide aperture corrections for emission lines in a sample of spiral galaxies from the Calar Alto Legacy Integral Field Area Survey (CALIFA) database. In particular, we explore the behavior of the log([O ...
    • APEX CO observations towards the photodissociation region of RCW 120 
      Figueira, M.; Zavagno, A.; Bronfman Aguiló, Leonardo; Russeil, D.; Finger Camus, Ricardo; Schuller, F. (EDP Science, 2020)
      Context. The edges of ionized (HII) regions are important sites for the formation of (high-mass) stars. Indeed, at least 30% of the Galactic high-mass-star formation is observed there. The radiative and compressive impact ...
    • APEX Millimeter Observations of Methanol Emission Toward High-mass Star-forming Cores 
      Hernández-Hernández, Vicente; Kurtz, Stan; Kalenskii, Sergei; Golysheva, Polina; Garay Brignardello, Guido; Zapata, Luis; Bergman, Per (Institute of Physics Publishing, 2019)
      © 2019. The American Astronomical Society. All rights reserved..We present 247 GHz molecular line observations of methanol (CH3OH) toward 16 massive star-forming regions using the APEX telescope with an angular resolution ...
    • APL: Audio programming language for blind learners 
      Sánchez Ilabaca, Jaime; Aguayo, Fernando (SPRINGER-VERLAG BERLIN, 2006)
      Programming skills are strongly emphasized in computer science. Programming languages are constructed based on sighted people as end-users. We have designed Audio Programming Language for blind learners based on audio ...
    • Aplicación del ciclo estratégico por resultados a la planificación de estrategias de VIH/sida en Latinoamérica 
      Rodríguez García, Rosalía; Rosenberg, Hernán (2013)
      Objetivo. Describir el ciclo estratégico por resultados (CER), un modelo de planificación estratégica que aborda la planificación como un ciclo continuo de siete fases que responden y se adaptan continuamente a la ...
    • APOGEE chemical abundance patterns of the massive milky way satellites 
      Hasselquist, Sten; Hayes, Christian R.; Lian, Jianhui; Weinberg, David H.; Zasowski, Gail; Horta, Danny; Beaton, Rachael; Feuillet, Diane K.; Garro, Elisa R.; Gallart, Carme; Smith, Verne V.; Holtzman, Jon A.; Minniti, Dante; Lacerna, Iván; Shetrone, Matthew; Jonsson, Henrik; Cioni, María Rosa L.; Fillingham, Sean P.; Cunha, Katia; O'Connell, Robert; Fernández Trincado, José G.; Muñoz Vidal, Ricardo Rodrigo; Schiavon, Ricardo; Almeida, Andres; Anguiano, Borja; Beers, Timothy C.; Bizyaev, Dmitry; Brownstein, Joel R.; Cohen, Roger E.; Frinchaboy, Peter; García Hernández, D. A.; Geisler, Doug; Lane, Richard R.; Majewski, Steven R.; Nidever, David L.; Nitschelm, Christian; Povick, Joshua; Price Whelan, Adrián; Román Lopes, Alexandre; Rosado, Margarita; Sobeck, Jennifer; Stringfellow, Guy; Valenzuela, Octavio; Villanova, Sandro; Vincenzo, Fiorenzo (2021)
      The SDSS-IV Apache Point Observatory Galactic Evolution Experiment (APOGEE) survey has obtained high-resolution spectra for thousands of red giant stars distributed among the massive satellite galaxies of the Milky Way ...
    • An application interface for UCHILSIM and the arrival of new challenges 
      Zagal Montealegre, Juan; Sarmiento, Iván; Ruiz del Solar, Javier (SPRINGER-VERLAG BERLIN, 2006)
      UCHILSIM is a robot simulator recently introduced in the RoboCup Four Legged League. A main attractive of the simulator is the possibility of reproducing with accuracy the dynamical behavior of AIBO(1) robots as well as ...
    • Application of a regional model to astronomical site testing in western Antarctica 
      Falvey, Mark; Rojo Rubke, Patricio (Springer, 2016)
      The quality of ground-based astronomical observations is significantly affected by local atmospheric conditions, and the search for the best sites has led to the construction of observatories at increasingly remote locations, ...
    • Application of chromatographic theory for process characterization towards validation of an ion-exchange operation 
      Kaltenbrunner, O.; Giaverini, O.; Woehle, D.; Asenjo de Leuze, Juan (JOHN WILEY & SONS INC, 2007-09)
      The behavior of ion-exchange chromatography is well understood with respect to changes in ionic strength, pH, resin ligand density, bed height, elution flow rate, and gradient slope. Their relative importance for any ...
    • The application of diffusion–reaction mixed model to assess the best experimental conditions for bark ... 
      Montes Atenas, Gonzalo; Valenzuela Lozano, Fernando; Montes, S. (Springer-Verlag, 2014)
      Natural sorbents have been thoroughly assessed to determine their adsorption capabilities to remove pollutants from industrial wastewaters. Among them, pine bark has demonstrated potential for carrying out the removal ...
    • Application of global Carleman estimates with rotated weights to an inverse problem for the wave equation 
      Doubova, Anna; Osses Alvarado, Axel (ELSEVIER FRANCE-EDITIONS SCIENTIFIQUES MEDICALES ELSEVIER, 2005-11-01)
      We establish geometrical conditions for the inverse problem of determining a stationary potential in the wave equation with Dirichlet data from a Neumann measurement on a suitable part of the boundary. We present the ...
    • Application of linear stability via Lyapunov exponents in high dimensional electrical power systems 
      Verdejo Fredes, Humberto; Kliemann, Wolfgang; Vargas Díaz, Luis (Elsevier, 2015)
      Applications of linear stability via Lyapunov exponents in high dimensional test systems are presented. The stochastic disturbance model is given by a bounded Markov diffusion process, as it appears in the description ...
    • Application of long short-term memory neural networks for co2 concentration forecast on amine plants 
      Brauning L.F.G., Morais C.H.B., Barraza J.E.F., Martins M.R., Droguett E.L. (Research Publishing, Singapore, 2020)
    • Application of optimized models through direct block scheduling in traditional mine planning 
      Campos, P. H. A; Arroyo, C. E.; Morales, N. (Southern African INST. Mining Metallurgy, 2018-04)
      Many papers have been published by the scientific community on the development of techniques that use direct block scheduling (DBS) to solve open pit production scheduling problems, and have compared the results obtained ...
    • Application of photochemical method in the synthesis of Ga2O3 X thin films co-doped with terbium and europium 
      Cabello, G.; Araneda, A.; Lillo, L.; Caro, C.; Venegas, C.; Tejos, M.; Chornik Aberbuch, Boris (Elsevier, 2014)
      Ga2O3 X thin films co-doped with terbium and europium have been prepared by photochemical metalorganic deposition. In this process, solutions containing Ga(III), Tb(III) and Eu(III) 2,2,6,6-tetramethyl-3,5- heptanedionate ...
    • Application of PHT-splines in bending and vibration analysis of cracked Kirchhoff-Love plates 
      Videla Marió, Javier; Contreras Rojas, Felipe; Nguyen, Hoang; Atroshchenko, Elena (Elsevier, 2020)
      In this work, we present an eXtended Geometry Independent Field approximaTion (X-GIFT) formulation for cracked Kirchhoff-Love plates. The plate geometry is modeled by Non-Uniform Rational B-Splines (NURBS) while the solution ...
    • Application of Synthetic Rock Mass modeling to veined core-size samples 
      Vallejos Massa, Javier; Suzuki Morales, Kimie; Brzovic, Andrés; Mas Ivars, Diego (Elsevier, 2016)
      Rock masses of the primary copper ore at the El Teniente mine fail mainly through the infill of preexisting veins during the caving processes, especially through those composed of less than 35% hard minerals (quartz and ...
    • Application of the mineralogy and mineral chemistry of carbonates as a genetic tool in the hydrothermal environment 
      Carrillo Rosúa, Javier; Morales Ruano, Salvador; Roberts, Stephen; Morata Céspedes, Diego Antonio; Belmar, Mauricio (MDPI, 2021)
      The mineralogy and mineral chemistry of carbonates from various hydrothermal deposits, including volcanic-hosted Au-Cu epithermal, "Chilean Manto-type" Cu(-Ag), stratabound Mn, and Ag-Ba vein deposits from Spain and Chile, ...