Facultad de Ciencias Físicas y Matemáticas: Recent submissions

Now showing items 5281-5300 of 21971

    • Configuración remota de colectores de data con tecnología Zigbee desde una interfaz gráfica web 
      Raquil Pizarro, Felipe Alfredo (Universidad de Chile, 2020)
      En una planta industrial, el proceso de recolección de datos posee diversas dificultades debido a que es manual, haciéndolo susceptible a errores humanos y a demoras en tiempo considerables, por lo que es necesaria una ...
    • Evaluación de reemplazo de Central Térmica Mejillones por central solar 
      Hoffmann Heise, Pedro Pablo (Universidad de Chile, 2020)
      Como memoria para acceder al título de ingeniero mecánico, se ha realizado un estudio, que evalúa, técnica y económicamente, el posible reemplazo de las unidades termoeléctricas a carbón CTM1 y CTM2, las cuales, junto al ...
    • Análisis de desempeño de optimizador para el diseño de caserones 
      Henríquez Inzulza, Macarena Andrea (Universidad de Chile, 2020)
      En el presente informe se desarrolla el estudio y análisis del optimizador en el diseño de caserones Mineable Stope Optimizer o MSO utilizado por el software Deswik. A lo largo de la historia el desarrollo de algoritmos y ...
    • Fractionalized adaptive methods in automatic engineering problems 
      Gallegos Véliz, Javier Andrés (Universidad de Chile, 2020)
      En este trabajo, nos enfocamos en ver el orden de derivación y/o integración en las ecuaciones diferenciales de adaptación paramétrica como un parámetro en sí mismo que también se puede ajustar. Esto implica el uso de ...
    • Rediseño de procesos para reducir errores en los conocimientos de embarque de exportación en una Agencia Naviera 
      Cid Toro, Miguel Enrique (Universidad de Chile, 2020)
      El trabajo se realizó en ABC Chile S.A. cuyo giro es agente de naves. La agencia en Chile tiene dos funciones principales: apoyar la operación de los buques y, administrar y vender los espacios en las naves para la carga ...
    • Energy–Water Management System Based on Predictive Control Applied to the Water–Food–Energy Nexus in Rural ... 
      Roje, Tomislav; Sáez Hueichapan, Doris; Muñoz, Carlos; Daniele, Linda (MDPI, 2020)
      Generating strategies and techniques to feed the increasing world population is a significant challenge under climate change effects such as drought. Rural areas are especially sensitive to such effects as they are unable ...
    • Disk evolution study through imaging of nearby young stars (DESTINYS): A close low-mass companion to ET Cha 
      Ginski, C.; Menard, F.; Rab, C.; Mamajek, E. E.; van Holstein, R. G.; Benisty, M.; Manara, C. F.; Torres, R. Asensio; Bohn, A.; Birnstiel, T.; Delorme, P.; Facchini, S.; Garufi, A.; Gratton, R.; Hogerheijde, M.; Huang, J.; Kenworthy, M.; Langlois, M.; Pinilla, P.; Pinte, C.; Ribas, Á.; Rosotti, G.; Schmidt, T. O. B.; Van den Ancker, M.; Wahhaj, Z.; Waters, L. B. F. M.; Williams, J.; Zurlo, A. (EDP Science, 2020)
      Context. To understand the formation of planetary systems, it is important to understand the initial conditions of planet formation, that is, the young gas-rich planet forming disks. Spatially resolved, high-contrast ...
    • Differences in the composition of organic aerosols between winter and summer in Beijing: a study by ... 
      Steimer, Sarah S.; Patton, Daniel J.; Vu, Tuan V.; Panagi, Marios; Monks, Paul S.; Harrison, Roy M.; Fleming, Zoe L.; Shi, Zongbo; Kalberer, Markus (Copernicus gesellschaft MBH, 2020)
      This study investigates the chemical composition of PM2.5 collected at a central location in Beijing, China, during winter 2016 and summer 2017. The samples were characterised using direct-infusion negative-nano-electros ...
    • O&M Indoor Virtual Environments for People Who Are Blind: A Systematic Literature Review 
      Facanha, Agebson Rocha; Darin, Ticianne; Viana, Windson; Sánchez Ilabaca, Jaime (Association for Computing Machinery, USA, 2020)
      BACKGROUND: Knowing their current position in the surroundings constitutes one of the biggest challenges faced by people with visual disabilities when they move around. For them, it is difficult to be aware of the direction ...
    • Diseño, construcción y evaluación de barra de compresión de Hopkinson (Kolsky) 
      Arraztio Figari, José J. (Universidad de Chile, 2020)
      La caracterización de materiales en condiciones dinámicas representan nuevos desafíos para el desarrollo tecnológico. En base a lo anterior, se establece construir una barra de compresión de Hopkinson (SHPB, por sus siglas ...
    • Plan de gestión de control de riesgos críticos y productividad 
      Vásquez Orellana, Guillermo Jesús (Universidad de Chile, 2020)
      La Vicepresidencia de Proyectos de Codelco, actualmente se encuentra ejecutando un total de 9 proyectos en sus fases de construcción y 10 proyectos en las fases de Prefactibilidad y Factibilidad. En este contexto, Codelco ...
    • Condition-Based maintenance with reinforcement learning for dry gas pipeline subject to internal corrosión 
      Mahmoodzadeh, Zahra; Wu, Keo-Yuan; López Droguett, Enrique; Mosleh, Ali (MDPI, 2020)
      Gas pipeline systems are one of the largest energy infrastructures in the world and are known to be very efficient and reliable. However, this does not mean they are prone to no risk. Corrosion is a significant problem in ...
    • The search for disks or planetary objects around directly imaged companions: A candidate around DH Tau B. 
      Lazzoni, C.; Zurlo, A.; Desidera, S.; Mesa, D.; Fontanive, C.; Bonavita, M.; Ertel, S.; Rice, K.; Vigan, A.; Boccaletti, A.; Bonnefoy, M.; Chauvin, Gaël; Delorme, P.; Gratton, R.; Houllé, M.; Maire, A.L.; Meyer, M.; Rickman, E.; Spalding, E. A.; Asensio Torres, R.; Langlois, M.; Müller, A.; Baudino, J L.; Beuzit, J. L.; Biller, B.; Brandner, W.; Buenzli, E.; Cantalloube, F.; Cheetham, A.; Cudel, M.; Feldt, M.; Galicher, R.; Janson, M.; Hagelberg, J.; Henning, T.; Kasper, M.; Keppler, M.; Lagrange, A. M; Lannier, J.; LeCoroller, H.; Mouillet, D.; Peretti, S.; Perrot, C.; Salter, G.; Samland, M.; Schmidt, T.; Sissa, E.; Wildi, F. (EDP Science, 2020)
      Context. In recent decades, thousands of substellar companions have been discovered with both indirect and direct methods of detection. While the majority of the sample is populated by objects discovered using radial ...
    • Studying star-forming processes at core and clump scales: the case of the young stellar object G29.862-0.0044 
      Areal, M. B.; Paron, S.; Fariña, C.; Ortega, M. E.; Celis Peña, M.; Rubio López, Mónica (EDP Science, 2020)
      Aims. To advance our knowledge of star formation, in addition to statistical studies and large surveys of young stellar objects (YSOs), it is important to carry out detailed studies towards particular objects. Given that ...
    • Observations of edge-on protoplanetary disks with ALMA I. Results from continuum data 
      Villenave, M.; Menard, F.; Dent, W. R. F.; Duchene, G.; Stapelfeldt, K. R.; Benisty, M.; Boehler, Y.; Van der Plas, G.; Pinte, C.; Telkamp, Z.; Wolff, S.; Flores, C.; Lesur, G.; Louvet, F.; Riols, A.; Dougados, C.; Williams, H.; Padgett, D. (EDP, 2020)
      Aims. We aim to study vertical settling and radial drift of dust in protoplanetary disks from a different perspective: an edge-on view. An estimation of the amplitude of settling and drift is highly relevant to understanding ...
    • Climate change perception, vulnerability, and readiness: inter-country variability and emerging patterns ... 
      Azócar, Gabriela; Billi, Marco; Calvo, Rubén; Huneeus Lagos, Nicolás; Lagos, Marta; Sapiains Arrué, Rodolfo; Urquiza Gómez, Anahí (Springer, 2021)
      In Latin America, there is scarce comparative research on variables associated with the perception of climate change. This hinders the ability of governments to take mitigation and adaptation measures in the face of the ...
    • An active large rock slide in the Andean paraglacial environment: the Yerba Loca landslide, central Chile. 
      Sepúlveda Valenzuela, Sergio; Alfaro, Alejandro; Lara Castillo, Marisol; Carrasco, Javiera; Olea Encina, Paula; Rebolledo Lemus, Sofía; Garcés, Mario (Springer Heidelberg, 2020)
      A ca. 2.5 million m(3) landslide occurred in August 2018 in the Yerba Loca valley, Andes Main Cordillera (33 degrees 15 ' S), at about 4000 m a.s.l. The Yerba Loca landslide is a multirotational slide, with a main scarp ...
    • A tale of two transition disks: alma long-baseline observations of iso-oph 2 reveal two closely packed ... 
      González Ruilova, Camilo; Cieza, Lucas A.; Hales, Antonio S.; Pérez, Sebastián; Zurlo, A.; Arce Tord, Carla; Casassus Montero, Simón; Canovas, Héctor; Flock, Mario; Herczeg, Gregory J.; Pinilla, Paola; Price, Daniel J.; Príncipe, David A.; Ruiz Rodríguez, Dary; Williams, Jonathan P. (IOP Publishing, 2020)
      ISO-Oph 2 is a wide-separation (240 au) binary system where the primary star harbors a massive (M-dust similar to 40M(circle plus)) ring-like disk with a dust cavity similar to 50 au in radius and the secondary hosts a ...
    • Scientific controversy as a disaster risk factor: The 2007 seismic crisis in Patagonia, Chile 
      Marin, Juliette; Cortés Oggero, Julian; Aliste Almuna, Enrique; Campos Muñoz, Jaime (Elsevier, 2020)
      In 2007, a sequence of geophysical events occurred in Chilean Patagonia that manifested themselves in a series of earthquakes and a fjord tsunami, causing many months of disruption to the normal functioning of a region not ...
    • Synthesis and characterizations of Pd/Mn(Mn1.36Pd0.64)O-4 nanocomposite: An experimental and theoretical approach 
      Sivasamy, Ramesh; Venugopal, Potu; Kumar, Karrothu Varun; Espinoza González, Rodrigo (Pergamon-Elsevier Science, 2020)
      Due to the growing environmental issues and high energy consumption, there is an emergent need to synthesize the multifunctional materials to reduce energy consumption. Hence, we synthesized the Pd/Mn(Mn0.36Pd0.64)O-4 ...