Facultad de Ciencias Físicas y Matemáticas: Recent submissions

Now showing items 4401-4420 of 22292

    • Conceptual structural design of shear wall buildings layout based on artificial neural networks 
      Pizarro Riffo, Pablo Nicolás (Universidad de Chile, 2021)
      En el diseño estructural de edificios de muros de corte, el proceso inicial requiere la interacción entre los equipos de arquitectura e ingeniería para definir la configuración adecuada de los muros, una etapa que suele ...
    • Rediseño de proceso de la producción y venta de cecinas en Agrosuper, basado en herramientas de optimización ... 
      Núñez Cabezas, Martín Fernando (Universidad de Chile, 2021)
      Agrosuper es una organización perteneciente a la Agroindustria, específicamente se dedica a la producción, distribución y comercialización de alimentos frescos y congelados que en su mayoría tienen origen animal. Este ...
    • Contaminant emissions as indicators of chemical elements in the snow along a latitudinal gradient in southern Andes 
      Pizarro, Jaime; Vergara, Pablo M.; Cerda, Sergio; Cordero, Raúl R.; Castillo Castillo, Ximena Andre; Rowe, Penny M.; Casassa Rogazinski, Gino; Carrasco, Jorge; Damiani, Alessandro; Llanillo, Pedro J.; Lambert, Fabrice; Rondanelli Rojas, Roberto Francisco; Huneeus Lagos, Nicolás Jorge; Fernandoy, Francisco; Alfonso, Juan; Neshyba, Steven (Nature, 2021)
      The chemical composition of snow provides insights on atmospheric transport of anthropogenic contaminants at different spatial scales. In this study, we assess how human activities influence the concentration of elements ...
    • Impacto económico de la caracterización geometalúrgica y variables operacionales de molibdeno en la planta ... 
      Morin Cerliani, Eduardo Andrés (Universidad de Chile, 2021)
      División Andina CODELCO ha presentado en los últimos cinco años una caída en la calidad del mineral alimentado desde la mina Rajo asociado a la disminución de la ley de molibdeno. Como consecuencia la Planta de Flotación ...
    • Sudden large-volume detachments of low-angle mountain glaciers – more frequent than thought? 
      Kääb, Andreas; Jacquemart, Mylène; Gilbert, Adrien; Leinss, Silvan; Girod, Luc; Huggel, Christian; Falaschi, Daniel; Ugalde, Felipe; Petrakov, Dmitry; Chernomorets, Sergey; Dokukin, Mikhail; Paul, Frank; Gascoin, Simón; Berthier, Etienne; Kargel, Jeffrey S. (Copernicus, 2021)
      The detachment of large parts of low-angle mountain glaciers resulting in massive ice-rock avalanches have so far been believed to be a unique type of event, made known to the global scientific community first for the 2002 ...
    • Indicador de huella de agua territorial para Chile enfocado al sector productivo 
      Montenegro Araneda, Andrea Belén (Universidad de Chile, 2021)
      Chile se enfrenta a una emergente crisis que pone en riesgo la seguridad hídrica del país, agravada por una deficiente gestión y gobernanza del agua. Se detecta como oportunidad de mejora la creación de un marco normativo ...
    • Reconciling livestock production and wild herbivore conservation: challenges and opportun 
      Pozo, R. A.; Cusack, J. J.; Acebes, P.; Malo, J. E.; Traba, J.; Iranzo, E. C.; Morris Trainor, Z.; Minderman, J.; Bunnefeld, N.; Radic Schlling, Sergio Javier; Moraga, C. A.; Arriagada, R.; Corti, P. (Elsevier, 2021)
      Increasing food security and preventing further loss of biodiversity are two of humanity’s most pressing challenges. Yet, efforts to address these challenges often lead to situations of conflict between the interests of ...
    • Numerical modeling of threadbar under dynamic loading 
      Marulanda Cardona, Lina Yesenia (Universidad de Chile, 2021)
      The prevention or mitigation of the effects of rockburst in rock masses subjected to high levels of stress, is one of the most challenging problems for the field of study of rock mechanics. Although the use of bolts is a ...
    • Size and structures of disks around very low mass stars in the taurus star-forming region 
      Kurtovic, N. T.; Pinilla, P.; Long, F.; Benisty, Myriam; Manara, C. F.; Natta, A.; Pascucci, I.; Ricci, L.; Scholz, A.; Testi, L. (EDP Sciences, 2021)
      Context. The discovery of giant planets orbiting very low mass stars (VLMS) and the recent observed substructures in disks around VLMS is challenging planet formation models. Specifically, radial drift of dust particles ...
    • Asymptotic description of dynamics in plasma and water-waves type models 
      Martínez Martini, María Eugenia (Universidad de Chile, 2021)
      Esta tesis está dedicada al estudio de la dinámica asintótica en varios modelos de fluidos de interés clave. Estos están por un lado relacionados con la ecuación clásica de Schr\"odinger y por otro lado pueden derivarse ...
    • Evaluación y monitoreo del proceso de agendamiento en la Red de atención de Salud Sur Oriente 
      Jaramillo Agüero, Camilo José (Universidad de Chile, 2021)
      La Red de Salud Sur Oriente se encuentra conformada por los establecimientos de salud de las comunas La Florida, La Granja, San Ramón, La Pintana, Puente Alto, Pirque y San José de Maipo, Para el año 2019 la población ...
    • Sharpening quasar absorption lines with ESPRESSO? Temperature of warm gas at z ~2, constraints on the Mg ... 
      Noterdaeme, Pasquier; Balashev, S.; Ledoux, C.; Duchoquet, G.; López Morales, Sebastián; Telikova, K.; Boissé, P.; Krogager, J. K.; De Cia, A.; Bergeron, J. (EDP Sciences, 2021)
      Aims. We aim to study several key physical properties of quasar absorption-line systems that are subtly encoded in their absorption profiles and have not yet been thoroughly investigated or constrained.Methods. We analysed ...
    • Words, Tweets, and Reviews: Leveraging Affective Knowledge Between Multiple Domains 
      Bravo Márquez, Felipe; Tamblay Veas, Cristián Felipe (2021)
      Three popular application domains of sentiment and emotion analysis are: 1) the automatic rating of movie reviews, 2) extracting opinions and emotions on Twitter, and 3) inferring sentiment and emotion associations of ...
    • Present-day geodynamics of the western alps: new insights from earthquake mechanisms 
      Mathey, Marguerite; Sue, Christian; Pagani, Colin; Baize, Stéphane; Walpersdorf, Andrea; Bodin, Thomas; Husson, Laurent; Hannouz, Estelle; Potin, Bertrand Jean-Maurice (Copernicus Gesellschaft MBH, 2021)
      Due to the low to moderate seismicity of the European Western Alps, few focal mechanisms are available in this region to this day, and the corresponding current seismic stress and strain fields remain partly elusive. The ...
    • NGTS-19b: a high-mass transiting brown dwarf in a 17-d eccentric orbit 
      Acton, Jack S.; Goad, Michael R.; Burleigh, Matthew R.; Casewell, Sarah L.; Breytenbach, Hannes; Nielsen, Louise D.; Smith, Gareth; Anderson, David R.; Battley, Matthew P.; Bayliss, Daniel; Bouchy, François; Bryant, Edward M.; Csizmadia, Szilárd; Eigmüller, Philipp; Gill, Samuel; Gillen, Edward; Grieves, Nolan; Günther, Maximilian N.; Henderson, Beth A.; Hodgkin, Simon T.; Jackman, James A. G.; Jenkins, James Stewart; Lendl, Monika; McCormac, James; Moyano, Maximiliano; Nelson, Richard P.; Sefako, Ramotholo R.; Smith, Alexis M. S.; Stalport, Manu; Thomas, Jessymol K.; Tilbrook, Rosanna H.; Udry, Stéphane; West, Richard; Wheatley, Peter J.; Worters, Hannah L.; Vines, José I.; Alves Rodrigues, Douglas (Oxford University Press, 2021)
      We present the discovery of NGTS-19b, a high-mass transiting brown dwarf discovered by the Next Generation Transit Survey. We investigate the system using follow-up photometry from the South African Astronomical Observatory, ...
    • Medium-resolution spectrum of the exoplanet HIP 65426 b 
      Petrus, S.; Bonnefoy, Mickael; Chauvin, Gael; Charnay, B.; Marleau, G.D.; Gratton, R.; Lagrange, A.M.; Rameau, J.; Mordasini, C.; Nowak, M.; Delorme, P.; Boccaletti, A.; Carlotti, A.; Houllé, M.; Vigan, A.; Allard, F.; Desidera, S.; D’Orazi, V.; Hoeijmakers, H.J.; Wyttenbach, A.; Lavie, B. (EDP Sciences, 2021)
      Medium-resolution integral-field spectrographs (IFS) coupled with adaptive-optics such as Keck/OSIRIS, VLT/MUSE, or SINFONI are appearing as a new avenue for enhancing the detection and characterization capabilities of ...
    • The GRAVITY young stellar object survey VI. Mapping the variable inner disk of HD 163296 at sub-au scales 
      Sánchez Bermúdez, J.; Garatti, Caratti; García López, R.; Perraut, K.; Labadie, L.; Benisty, Myriam; Brandner, W.; Dougados, C.; García, P. J.; Henning, Th.; Klarmann, L.; Amorim, A.; Bauboeck, M.; Berger, J. P.; Le Bouquin, J. B.; Caselli, P.; Clenet, Y.; Du Foresto, V. Coude; De Zeeuw, P. T.; Drescher, A.; Duvert, G.; Eckart, A.; Eisenhauer, F.; Filho, M.; Gao, F.; Gendron, E.; Genzel, R.; Gillessen, S.; Grellmann, R.; Heissel, G.; Horrobin, M.; Hubert, Z.; Jiménez Rosales, A.; Jocou, L.; Kervella, P.; Lacour, S.; Lapeyrere, V.; Lena, P.; Ott, T.; Paumard, T.; Perrin, G.; Shimizu, T.; Stadler, J.; Straub, O.; Straubmeier, C.; Sturm, E.; van Dishoeck, E.; Vincent, F.; von Fellenberg, S. D.; Widmann, F.; Woillez, J. (EDP Sciences, 2021)
      Context. Protoplanetary disks drive some of the formation process (e.g., accretion, gas dissipation, formation of structures) of stars and planets. Understanding such physical processes is one of the most significant ...
    • Trace elements in Antarctic penguins and the potential role of guano as source of recycled metals in the ... 
      Sparaventi, Erica; Rodríguez Romero, Araceli; Barbosa, Andrés; Ramajo Gallardo, Laura; Tovar Sánchez, Antonio (Elsevier, 2021)
      Penguins dominate the Antarctic avifauna. As key animals in the Antarctic ecosystem, they are monitored to evaluate the ecological status of this pristine and remote region and specifically, they have been used as ...
    • Low case numbers enable long-term stable pandemic control without lockdowns 
      Contreras, Sebastián; Dehning, Jonas; Mohr, Sebastián B.; Bauer, Simón; Spitzner, Paul F.; Priesemann, Viola (Amer Assoc Advancement Science, 2021)
      The traditional long-term solutions for epidemic control involve eradication or population immunity. Here, we analytically derive the existence of a third viable solution: a stable equilibrium at low case numbers, where ...
    • New tour on the subdifferential of supremum via finite sums and suprema 
      Hantoute, Abderrahim; López Cerda, Mauricio Alfredo (Springer, 2021)
      This paper provides new characterizations for the subdifferential of the pointwise supremum of an arbitrary family of convex functions. The main feature of our approach is that the normal cone to the effective domain of ...