Facultad de Ciencias Físicas y Matemáticas: Recent submissions

Now showing items 5721-5740 of 22294

    • Chromium speciation in Zirconium-based metal–organic frameworks for environmental remediation 
      Saiz, Paula G.; Iglesias, Naroa; González Navarrete, Bárbara; Rosales Vera, Maibelin; Quintero Giraldo, Yurieth; Reizabal, Ander; Orive Gómez de Segura, Joseba; Fidalgo Marijuan, Arkaitz; Larrea, Edurne S.; Lopes, Ana Catarina; Lezama, Luis; García González, Andreina; Lanceros Méndez, Senentxu; Arriortua, María Isabel; Fernández de Luis, Roberto (Wiley, 2020)
      Acute Cr(VI)water pollution due to anthropogenic activities is an increasing worldwide concern. The high toxicity and mobility of Cr(VI)makes it necessary to develop dual adsorbent/ion-reductive materials that are able to ...
    • Implicancias del diseño y la secuencia constructiva en el comportamiento de muros Soil Nailing como sistema ... 
      Cerda Campos, Sebastián Eduardo (Universidad de Chile, 2020)
      En el último tiempo se han buscado alternativas a las tradicionales pilas excavadas manualmente para el sostenimiento de excavaciones, dada a su naturaleza artesanal y los riesgos de accidentes hacia los trabajadores que ...
    • Desarrollo de una herramienta para la calendarización de evaluaciones universitarias 
      Yáñez Meneses, Álvaro Rodrigo (Universidad de Chile, 2020)
      La carga académica a la que están sometidos los estudiantes ha sido un tema bastante polémico en los últimos años, y la Facultad de Ciencias Físicas y Matemáticas de la Universidad de Chile no es la excepción. En el último ...
    • Blockchain-based federated learning for intelligent control in Heavy Haul Railway 
      Gaofeng, Hua; Zhu, Li; Wu, Jinsong; Shen, Chunzi; Zhou, Lingyan; Lin, Qingqing (Institute of Electrical and Electronics Engineers (IEEE), 2020)
      Due to the long train marshaling and complex line conditions, the operating modes in heavy haul rail systems frequently change when trains travel. Improper traction or braking operation made by drivers will increase the ...
    • ALMA Evidence for Ram Pressure Compression and Stripping of Molecular Gas in the Virgo Cluster Galaxy NGC 4402 
      Cramer, W. J.; Kenney, J. D. P.; Cortes, J. R.; Cortes, P. C.; Vlahakis, C.; Jáchym, P.; Pompei, E.; Rubio López, Mónica (IOP Publishing, 2020)
      High-resolution (1 '' x 2 '') Atacama Large Millimeter Array CO(2-1) observations of the ram pressure stripped galaxy NGC 4402 in the Virgo cluster show some of the clearest evidence yet for the impacts of ram pressure on ...
    • SHREC 2020: Retrieval of digital surfaces with similar geometric reliefs 
      Moscoso Thompson, Elia; Biasotti, Silvia; Giachetti, Andrea; Tortorici, Claudio; Werghi, Naoufel; Obeid, Ahmad Shaker; Berretti, Stefano; Nguyen-Dinh, H. P.; Minh-Qua, Le; Hai-Dang, Nguyen; Minh, Triet Tran; Gigli, Leonardo; Velasco Forero, Santiago; Marcotegui, Beatriz; Sipiran, Iván; Bustos, Benjamín; Romanelis, Ioannis; Fotis, Vlassis; Arvanitis, Gerasimos; Moustakas, Konstantinos; Otu, Ekpo; Zwiggelaar, Reyer; Hunter, David; Liu, Yonghuai; Arteaga, Yoko; Luxman, Ramamoorthy (Elsevier, 2020)
      This paper presents the methods that have participated in the SHREC’20 contest on retrieval of surface patches with similar geometric reliefs and the analysis of their performance over the benchmark created for this ...
    • A model for germanium-silicon equilibrium fractionation in kaolinite 
      Pérez Fodich, Alida; Derry, Louis A. (Elsevier, 2020)
      Germanium is a useful tracer of silicate weathering and secondary mineral formation in the Critical Zone because Ge/Si ratios are fractionated during incongruent weathering of silicates. We develop an estimate of the ...
    • A Continuum from Iron Oxide Copper-Gold to Iron Oxide-Apatite Deposits: Evidence from Fe and O Stable ... 
      Rodríguez Mustafa, María A.; Simon, Adam C.; Real Contreras, Irene del; Thompson, John F.H.; Bilenker, Laura D.; Barra Pantoja, Fernando; Bindeman, Ilya (Society of Economic Geologists (SEG), 2020)
      Iron oxide copper-gold (IOCG) and iron oxide-apatite (IOA) deposits are major sources of Fe, Cu, and Au. Magnetite is the modally dominant and commodity mineral in IOA deposits, whereas magnetite and hematite are predominant ...
    • Análisis exploratorio de modelos de aprendizaje de máquinas para la estimación del tiempo de vida remanente ... 
      Beltrán Carvajal, Agustín Eliseo (Universidad de Chile, 2020)
      En el campo de la industria y el mantenimiento, nos podemos encontrar con fallas cuyo origen o desarrollo es desconocido, o bien de las que no se cuenta con la información suficiente para diagnosticar o tratar dicha falla. ...
    • Neotectonics and seismic source characterization in the Central High Andes, near Chile's capital Santiago 
      Araya Zuleta, José Antonio (Universidad de Chile, 2020)
      La región metropolitana de Santiago contiene una población de más de 7 millones de habitantes, siendo el área más poblada de Chile. En este segmento del orógeno Andino, importante sismicidad cortical y evidencias de ...
    • Análisis técnico económico de la industria del salitre y yodo en Chile 
      Hildebrandt Banse, Jorge Carlos Roberto (Universidad de Chile, 2020)
      El presente trabajo de título trata de la industria chilena del Yodo y colateralmente del Nitrato, área en la que el autor participó desde mediados del año 2010 hasta mediados del 2011 como encargado de todas las obras de ...
    • Eliciting Process Knowledge Through Process Stories 
      Antunes, Pedro; Pino Urtubia, José; Tate, Mary; Barros, Alistair (Springer, 2020)
      There are often gaps between the lived experiences of end users and the official version of processes as espoused by the organization. To understand and address these gaps, we propose and evaluate process stories, a method ...
    • Methodologically grounded semantic analysis of large volume of chilean medical literature data applied to ... 
      Wolff Rojas, Patricio; Ríos Pérez, Sebastián; Clavijo, David; Grana, Manuel; Carrasco, Miguel (BMC, 2020)
      Background Medical knowledge is accumulated in scientific research papers along time. In order to exploit this knowledge by automated systems, there is a growing interest in developing text mining methodologies to extract, ...
    • Carnegie Supernova Project II: The Slowest Rising Type Ia Supernova LSQ14fmg and Clues to the Origin of ... 
      Hsiao, E. Y.; Hoeflich, P.; Ashall, C.; Lu, J.; Contreras, C.; Burns, C. R.; Phillips, M. M.; Galbany, L.; Anderson, J. P.; Baltay, C.; Baron, E.; Castellón, S.; Davis, S.; Freedman, Wendy L.; Gall, C.; González, C.; Graham, M. L.; Hamuy Wackenhut, Mario; Holoien, T. W.-S.; Karamehmetoglu, E.; Krisciunas, K.; Kumar, S.; Kuncarayakti, H.; Morrell, N.; Moriya, T. J.; Nugent, P. E.; Perlmutter, S.; Persson, S. E.; Piro, A. L.; Rabinowitz, D.; Roth, M.; Shahbandeh, M.; Shappee, B. J.; Stritzinger, M. D.; Suntzeff, N. B.; Taddia, F.; Uddin, S. A. (IOP Publishing, 2020)
      The Type Ia supernova (SN Ia) LSQ14fmg exhibits exaggerated properties that may help to reveal the origin of the "super-Chandrasekhar" (or 03fg-like) group. The optical spectrum is typical of a 03fg-like SN Ia, but the ...
    • An Ultra-Hot Neptune in the Neptune desert 
      Jenkins, James Stewart; Díaz, Matías; Troncoso Kurtovic, Nicolás; Espinoza, Néstor; Vines, José I.; Peña Rojas, Pablo; Brahm, Rafael; Torres, Pascal; Cortés Zuleta, Pía; Soto, Maritza G.; Lopez, Eric D.; King, George W.; Wheatley, Peter J.; Winn, Joshua N.; Ciardi, David R.; Ricker, George; Vanderspek, Roland; Latham, David W.; Seager, Sara; Jenkins, Jon M.; Beichman, Charles A.; Bieryla, Allyson; Burke, Christopher J.; Christiansen, Jessie L.; Henze, Christopher E.; Klaus, Todd C.; McCauliff, Sean; Mori, Mayuko; Narita, Norio; Nishiumi, Taku; Tamura, Motohide; Pitogo de Leon, Jerome; Quinn, Samuel N.; Villaseñor, Jesús Noel; Vezie, Michael; Lissauer, Jack J.; Collins, Karen A.; Collins, Kevin I.; Isopi, Giovanni; Mallia, Franco; Ercolino, Andrea; Petrovich, Cristobal; Jordán, Andrés; Acton, Jack S.; Armstrong, David J.; Bayliss, Daniel; Bouchy, François; Belardi, Claudia; Bryant, Edward M.; Burleigh, Matthew R.; Jara Cabrera, Juan Miguel; Casewell, Sarah L.; Chaushev, Alexander; Cooke, Benjamin F.; Eigmüller, Philipp; Erikson, Anders; Foxell, Emma; Gänsicke, Boris T.; Gill, Samuel; Gillen, Edward; Günther, Maximilian N.; Goad, Michael R.; Hooton, Matthew J.; Jackman, James A. G.; Louden, Tom; McCormac, James; Moyano, Maximiliano; Nielsen, Louise D.; Pollacco, Don; Queloz, Didier; Rauer, Heike; Raynard, Liam; Smith, Alexis M. S.; Tilbrook, Rosanna H.; Titz-Weider, Ruth; Turner, Oliver; Udry, Stéphane; Walker, Simon R.; Watson, Christopher A.; West, Richard G.; Palle, Enric; Ziegler, Carl; Law, Nicholas; Mann, Andrew W. (Nature, 2020)
      About 1 out of 200 Sun-like stars has a planet with an orbital period shorter than one day: an ultrashort-period planet(1,2). All of the previously known ultrashort-period planets are either hot Jupiters, with sizes above ...
    • Insights on the mechanism, reactivity and selectivity of fructose and tagatose dehydration into ... 
      Meneses Olmedo, Lorena Maribel; Cuesta Hoyos, Sebastián; Salgado Morán, Guillermo; Cardona Villada, Wilson; Gerli Candia, Lorena A.; Mendoza Huizar, Luis H (Elsevier, 2020)
      In this study, a computational DFT study was performed to propose a new acid catalyzed mechanism to produce 5HMF from D-Fructose and D-Tagatose. The reactivity and selectivity towards 5HMF formation were analyzed, and the ...
    • U–Pb SHRIMP detrital zircon dating of metamorphic rocks in north–central Chile (28°–33°S): Evidence for ... 
      Hervé Allamand, Francisco; Calderón, M.; Fanning, C. M.; Pankhurst, R. J.; Navarro, J. (Elsevier, 2020)
      U-Pb SHRIMP detrital zircon dating of ten samples of metamorphic "basement" rocks in north-central Chile and one granitic rock, improve knowledge of sedimentary, metamorphic and plutonic events in this segment of the Andean ...
    • A framework for adaptive open-pit mining planning under geological uncertainty 
      Lagos, Tomás; Armstrong, Margaret; Homem-de-Mello, Tito; Lagos, Guido; Sauré Valenzuela, Denis (Springer, 2020)
      Mine planning optimization aims at maximizing the profit obtained from extracting valuable ore. Beyond its theoretical complexity-the open-pit mining problem with capacity constraints reduces to a knapsack problem with ...
    • Análisis de la respuesta dinámica del ensayo de un sistema de fortificación para minería subterránea 
      Fuentealba Morales, Martín Gabriel (Universidad de Chile, 2020)
    • Influencia geológica en la dinámica de los glaciares O'Higgins, Viedma y Upsala en campo de hielo Patagónico Sur 
      Zamorano Morales, Diego Alejandro (Universidad de Chile, 2020)
      El clima, la erosión y la tectónica forman un sistema caracterizado por la interdependencia mutua y la presencia de forzantes externos que pueden desarrollar mecanismos de feedback, volviendo muy complejo el entendimiento ...