Facultad de Ciencias Físicas y Matemáticas: Recent submissions

Now showing items 10441-10460 of 22295

    • Circumbinary, not transitional: on the spiral arms, cavity, shadows, fast radial flows, streamers, and ... 
      Price, Daniel J.; Cuello, Nicolás; Pinte, Christophe; Mentiplay, Daniel; Casassus Montero, Simón; Christiaens, Valentin; Kennedy, Grant M.; Cuadra, Jorge; Pérez M., Sebastián; Marino, Sebastian; Armitage, Philip J.; Zurlo, Alice; Juhasz, Attila; Ragusa, Enrico; Laibe, Guillaume; Lodato, Giuseppe (Oxford University Press, 2018)
      We present 3D hydrodynamical models of the HD 142527 protoplanetary disc, a bright and well-studied disc that shows spirals and shadows in scattered light around a 100 au gas cavity, a large horseshoe dust structure in mm ...
    • Análisis comparativo de generación de entropía y potencia mecánica en configuraciones de emplazamiento de ... 
      Cortés Guajardo, Gabriel Esteban (Universidad de Chile, 2018)
      El consenso científico indica que la actividad humana ha causado el aumento de la temperatura del planeta, por esto se ha planteado el objetivo mundial de disminuir las emisiones de gases de efecto invernadero. Una de las ...
    • Influencia del uso de un modelo "Data Based Mechanistical" (DBM) en resultados de modelos hidrológicos ... 
      Claros Rocabado, Vladimir (Universidad de Chile, 2018)
      Determinar de forma confiable y anticipada la cantidad de agua que puede generar una cuenca como respuesta a las forzantes meteorológicas a las que es sometida, es fundamental para la planificación y optimización del uso ...
    • Diseño e implementación de una estrategia de seguridad mediante políticas de autenticación y autorización ... 
      Castillo Gutiérrez, Manuel Antonio (Universidad de Chile, 2018)
      En la actualidad, la necesidad de una sólida estrategia de gestión de acceso e identidad se ha convertido en parte integral de los recursos de tecnología de una empresa. Las soluciones para estas estrategias pueden permitir ...
    • Estrategia para la incorporación de tecnologías que mitiguen gases de efecto invernadero en el sector ... 
      Carvallo Albornoz, Sebastián Marcos (Universidad de Chile, 2018)
      El Gobierno de Chile presentó su Contribución Nacional Tentativa (INDC) actual Contribución Nacionalmente Determinada (NDC), en septiembre del 2015 y en febrero de 2017 el Congreso de Chile ratificó el acuerdo de París. ...
    • Disipación en un sistema cuántico controlado a través de un parámetro dependiente del tiempo 
      Armendariz Lagos, Josu Andoni (Universidad de Chile, 2018)
      En esta tesis se usan las herramientas proporcionadas por la termodinámica estocástica y el método de segunda cuantización para estudiar un sistema cuántico cuya dinámica está siendo controlada por un parámetro externo. ...
    • Design and test of a digital correlator for the NIR heterodyne interferometer 
      Besser Pimentel, Felipe Ernesto (Universidad de Chile, 2018)
      En la actualidad se han comenzado las discusiones para el desarrollo de los observatorios astronómicos post E-ELT, telescopio de 39 m en construcción en el norte de Chile. Como parte de estas discusiones, la comunidad ...
    • Bunching and headway adherence approach to public transport with GPS 
      Byon, Young-Ji; Cortés Carrillo, Cristián; Jeong, Young-Seon; Martínez, Francisco; Munizaga Muñoz, Marcela; Zúñiga, Mauricio (Springer, 2018-06)
      Emerging GPS devices enable new data collection opportunities for transit performance monitoring. In addition to the fact that GPS devices can replace labor-intensive survey techniques, they also collect traffic information ...
    • 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 ...
    • Analytical and experimental evaluation of the use of fibers as partial reinforcement in shotcrete for tunnels ... 
      Massone, Leonardo M.; Nazar, Francisco (Elsevier, 2018-07)
      This work evaluates experimentally the use of steel or polypropylene fibers in shotcrete as a partial replacement for the traditional reinforcement of electrowelded mesh used at the tunnel support for the subway in Santiago ...
    • A generalized non-gaussian consistency relation for single field inflation 
      Bravo, R.; Mooij, Sander; Palma Quilodrán, Gonzalo; Pradenas Márquez, Bastián (Iop Publishing LTD, 2018-05)
      We show that a perturbed inflationary spacetime, driven by a canonical single scalar field, is invariant under a special class of coordinate transformations together with a field reparametrization of the curvature ...
    • Marte: la próxima frontera 
      Maza Sancho, José (Planeta, 2018)
      La publicación presenta un repaso histórico de los principales proyectos tecnológicos que han permitido avances en la astronomía. De esta forma destaca los registros de las primeras observaciones del cielo, los debates ...
    • Morphological raman analysis of short chain branched ethylene and propylene metallocenic copolymers 
      Satti, A. J.; Quijada, R.; Pastor, J. M.; Valles, E. M. (Elsevier, 2018-05)
      Spectroscopic features in the Raman spectra of semicrystalline polyolefins that characterize different phase morphologies are reported. With growing incorporation of different 1-olefins, changes in the spectra due to ...
    • Nanogeochemistry of hydrothermal magnetite 
      Deditius, Artur P.; Reich Morales, Martín; Simon, Adam C.; Suvorova, Alexandra; Knipping, Jaayke; Roberts, Malcolm P.; Rubanov, Sergey; Dodd, Aaron; Saunders, Martin (Springer, 2018-06)
      Magnetite from hydrothermal ore deposits can contain up to tens of thousands of parts per million (ppm) of elements such as Ti, Si, V, Al, Ca, Mg, Na, which tend to either structurally incorporate into growth and sector ...
    • Noema observations of a molecular cloud in the Low-metallicity galaxy kiso 5639 
      Elmegreen, Bruce G.; Herrera, Cinthya; Rubio López, Mónica; Elmegreen, Debra Meloy; Sánchez Almeida, Jorge; Muñoz-Tuñón, Casiana; Olmo-García, Amanda (Iop Publishing LTD, 2018-06)
      A giant star-forming region in a metal-poor dwarf galaxy has been observed in optical lines with the 10 m Gran Telescopio Canarias (GTC) and in the emission line of CO(1-0) with the Northern Extended Millimeter Array (NOEMA) ...
    • Observed type II supernova colours from the carnegie supernova project-I 
      De Jaeger, Thomas; Anderson, J. P.; Galbany, Lluis; González Gaitán, Santiago; Hamuy Wackenhut, Mario; Phillips, M. M.; Stritzinger, M. D.; Contreras, C.; Folatelli, Gastón; Gutiérrez, C. P.; Hsiao, E. Y.; Morrell, N.; Suntzeff, Nicholas B.; Dessart, L.; Filippenko, A. V. (Oxford University Press, 2018-06)
      We present a study of observed Type II supernova (SN II) colours using optical/near-infrared photometric data from the Carnegie Supernovae Project-I. We analyse four colours (B - V, u - g, g - r, and g - Y) and find that ...
    • Physical, spectral, and dynamical properties of asteroid (107) Camilla and its satellites 
      Pajuelo, M.; Kervella, P. (Elsevier, 2018-07-15)
      The population of large 100+ km asteroids is thought to be primordial. As such, they are the most direct witnesses of the early history of our Solar System available. Those among them with satellites allow study of the ...
    • Active colloidal chains with cilia- and flagella-like motion 
      González, S.; Soto Bertrán, Rodrigo (Iop publishing LTD, 2018-05)
      It has been shown that self-assembled chains of active colloidal particles can present sustained oscillations. These oscillations are possible because the effective diffusiophoretic forces that mediate the interactions of ...
    • Stress transfer and matrix-cohesive fracture mechanism in microfibrillated cellulose-gelatin nanocomposite films 
      Quero, Franck; Padilla, Cristina; Campos, Vanessa; Luengo, Jorge; Caballero, Leonardo; Melo, Francisco; Li, Qiang; Eichhorn, Stephen J.; Enrione, Javier (Elsevier, 2018-09)
      Microfibrillated cellulose (MFC) obtained from eucalyptus was embedded in gelatin from two sources; namely bovine and salmon gelatin. Raman spectroscopy revealed that stress is transferred more efficiently from bovine ...
    • Are supermarkets squeezing small suppliers? evidence from negotiated wholesale prices 
      Noton Norambuena, Carlos; Elberg, Andrés (Wiley, 2018-05)
      Conventional wisdom is that big-box retailers squeeze the profits of small suppliers. Underlying this belief is the assumption that relative market size is the primary source of bargaining leverage. Using actual wholesale ...