Facultad de Ciencias Físicas y Matemáticas: Recent submissions

Now showing items 6621-6640 of 21971

    • Special issue on pervasive and ubiquitous solutions for cultural enrichment 
      Wei, Wei; Wu, Jinsong; Zhu, Chunsheng (Springer, 2020)
    • Simulation of hypoxia PET-tracer uptake in tumours: Dependence of clinical uptake-values on transport ... 
      Paredes Cisneros, Isabela; Karger, Christian P.; Caprile, Paola; Nolte, David; Espinoza, Ignacio; Gago Arias, Araceli (Elsevier, 2020)
      Poor radiotherapy outcome is in many cases related to hypoxia, due to the increased radioresistance of hypoxic tumour cells. Positron emission tomography may be used to non-invasively assess the oxygenation status of the ...
    • Uniform W-1,W-p estimates for an elliptic operator with Robin boundary condition in a C-1 domain 
      Amrouche, C.; Conca Rosende, Carlos; Ghosh, A.; Ghosh, T. (Springer, 2020)
      We consider the Robin boundary value problem div(A del u) = div f + F in Omega, a C-1 domain, with (A del u - f) . n + alpha u = g on Gamma, where the matrix A belongs to VMO(R-3), and discover the uniform estimates on ...
    • Soil microbial community responses to labile organic carbon fractions in relation to soil type and land use ... 
      Ramírez, Paulina B.; Fuentes Alburquenque, Sebastián; Díez Moreno, Beatriz; Vargas, Ignacio; Bonilla, Carlos A. (Elsevier, 2020)
      There has been a growing interest in studying the labile C pool in order to promote the sequestration and stabilization of soil organic carbon (SOC). Although labile SOC fractions have emerged as standardized indicators ...
    • Variations in the width, density, and direction of the Palomar 5 tidal tails 
      Bonaca, Ana; Pearson, Sarah; Price-Whelan, Adrian; Dey, Arjun; Geha, Marla; Kallivayalil, Nitya; Moustakas, John; Muñoz Vidal, Ricardo; Myers, Adam; Schlegel, David; Valdés, Francisco (IOP, 2020)
      Stars that escape globular clusters form tidal tails that are predominantly shaped by the global distribution of mass in the Galaxy, but also preserve a historical record of small-scale perturbations. Using deep grz ...
    • Wave damping of a sloshing wave by an interacting turbulent vortex flow 
      Reyes Aspé, Francisco; Torrejón, Vicente; Falcón Beas, Claudio (American Physical Society, 2020)
      We report on the enhancement of the hydrodynamic damping of gravity waves at the surface of a fluid layer as they interact with a turbulent vortex flow in a sloshing experiment. Gravity surface waves are excited by oscillating ...
    • Significant decrease of photovoltaic power production by aerosols. The case of Santiago de Chile 
      Hoyo, Mirko del; Rondanelli Rojas, Roberto; Catalán Escobar, Rodrigo Ignacio (Elsevier, 2020)
      Santiago de Chile frequently suffers from atmospheric pollution that contributes to the decrease of solar irradiance on the surface, leading to losses in the energy output of photovoltaic systems. In this study, a simple ...
    • RF-MEP: A novel random forest method for merging gridded precipitation products and ground-based measurements 
      Báez Villanueva, Óscar; Zambrano Bigiarini, Mauricio; Beck, Hylke; McNamara, Ian; Ribbe, Lars; Nauditt, Alexandra; Birkel, Christian; Verbist, Koen; Giraldo Osorio, Juan Diego; Thinh, Nguyen Xuan (Elsevier, 2020)
      The accurate representation of spatio-temporal patterns of precipitation is an essential input for numerous environmental applications. However, the estimation of precipitation patterns derived solely from rain gauges is ...
    • Revealing the CO X-factor in Dark Molecular Gas through Sensitive ALMA Absorption Observations 
      Luo, Gan; Li, Di; Tang, Ningyu; Dawson, J. R.; Dickey, John; Bronfman Aguiló, Leonardo; Qin, Sheng-Li; Gibson, Steven; Plambeck, Richard; Finger Camus, Ricardo; Green, Anne J.; Mardones Pérez, Diego; Koo, Bon-Chul; Lo, Nadia (IOP, 2020)
      Carbon-bearing molecules, particularly CO, have been widely used as tracers of molecular gas in the interstellar medium (ISM). In this work, we aim to study the properties of molecules in diffuse, cold environments, where ...
    • Resolving the FU Orionis System with ALMA: Interacting Twin Disks? 
      Pérez Márquez, Sebastián; Hales, Antonio; Liu, Hauyu Baobab; Zhu, Zhaohuan; Casassus Montero, Simón; Williams, Jonathan; Zurlo, Alice; Cuello, Nicolás; Cieza, Lucas; Príncipe, David (IOP, 2020)
      FU Orionis objects are low-mass pre-main sequence stars characterized by dramatic outbursts several magnitudes in brightness. These outbursts are linked to episodic accretion events in which stars gain a significant portion ...
    • Post-melting oxidation of highly primitive basalts from the southern Andes 
      Tassara, Santiago; Reich Morales, Martín; Cannatelli, Claudia; Konecke, B. A.; Kausel Kausel, Domínica; Morata Céspedes, Diego; Barra, Fernando; Simon, A. C.; Fiege, A.; Morgado, E.; Leisen, Mathieu (Pergamon-Elsevier, 2020)
      The oxygen fugacity (fO(2)) of the Earth's upper mantle and its melting products is an important parameter in the geochemical evolution of arc magmas and their connection with the continental crustal construction and growth. ...
    • Holocene glacier behavior around the northern Antarctic Peninsula and possible causes 
      Kaplan, M. R.; Strelin, J. A.; Schaefer, J. M.; Peltier, C.; Martini, M. A.; Flores, E.; Winckler, G.; Schwartz, R. (Elsevier, 2020)
      We obtained 49 new Be-10 ages that document the activity of the former Northern Antarctic Peninsula Ice Sheet, and subsequently the James Ross Island Ice Cap and nearby glaciers, from the end of the last glacial period ...
    • Characterization of photochemically grown Pd loaded WO3 thin films and its evaluation as ammonia gas sensor 
      Castillo, C.; Cabello, G.; Chornik Aberbuch, Boris; Huentupil, Y.; Buono Core, G. E. (Elsevier, 2020)
      Pd-loaded tungsten oxide thin films have been successfully fabricated by direct UV irradiation of bis(beta-diketonate)dioxotungsten(VI) and Pd(II) precursor complexes spin-coated on Si(100) substrates. X-ray diffraction ...
    • A mixed integer programming approach for multi-action planning for threat management 
      Salgado Rojas, José; Álvarez Miranda, Eduardo; Hermoso, Virgilio; García-Gonzalo, Jordi; Weintraub Pohorille, Andrés (Elsevier, 2020)
      Planning for management actions that address threats to biodiversity is important for securing its long term persistence. However, systematic conservation planning (SCP) has traditionally overlooked this aspect and just ...
    • RefPlanets: Search for reflected light from extrasolar planets with SPHERE/ZIMPOL 
      Hunziker, S.; Schmid, H. M.; Mouillet, D.; Milli, J.; Zurlo, Alice; Abe, L.; Avenhaus, H.; Baruffolo, A.; Bazzon, A.; Boccaletti, A.; Baudoz, P.; Beuzit, J. L.; Carbillet, M.; Chauvin, G.; Dohlen, K.; Chauvin, G.; Claudi, R.; Costille, A.; Daban, J.-B.; Desidera, S.; Dohlen, K.; Dominik, C.; Downing, M.; Engler, N.; Feldt, M.; Fusco, T.; Ginski, C.; Gisler, D.; Girard, J. H.; Gratton, R.; Henning, Th.; Hubin, N.; Kasper, M.; Keller, C. U.; Langlois, M.; Lagadec, E.; Martínez, P.; Maire, A.-L.; Menard, F.; Meyer, M. R.; Pavlov, A.; Pragt, J.; Puget, P.; Quanz, S. P.; Rickman, E.; Roelfsema, R.; Salasnich, B.; Sauvage, J.-F.; Siebenmorgen, R.; Sissa, E.; Snik, F.; Suárez, M.; Szulágyi, J.; Thalmann, Ch.; Turatto, M.; Udry, S.; Van Holstein, R. G.; Vigan, A.; Wildi, F. (EDP ​​Sciences, 2020)
      Aims. RefPlanets is a guaranteed time observation programme that uses the Zurich IMaging POLarimeter (ZIMPOL) of Spectro-Polarimetric High-contrast Exoplanet REsearch instrument at the Very Large Telescope to perform a ...
    • Control predictivo aplicado al nexo "agua-energía-alimento" en comunidades rurales 
      Roje Godoy, Tomislav Andrés (Universidad de Chile, 2020)
      Las estimaciones indican que para el año 2050 la población mundial llegará a 9,8 mil millones de seres humanos, es decir, un 30% más que la población actual. Uno de los desafíos es generar las estrategias y técnicas para ...
    • Evaluación del potencial geotérmico de baja entalpía en la subcuenca del Maipo Medio 
      Vega Alvarado, Camila Francisca (Universidad de Chile, 2020)
      La energía geotérmica es una fuente inagotable de energía que puede ser extraída de la tierra por medio del bombeo de fluidos calentados en su interior, aprovechando la gran inercia térmica que se da en el subsuelo. Este ...
    • Desarrollo de una plataforma flexible para la construcción de escenarios de videojuegos 
      Velásquez Valdés, Cristóbal (Universidad de Chile, 2019)
      Aprender a programar sobre GPUs (Graphics Processing Units), de manera óptima es una tarea compleja. Esto motiva al alumno a desarrollar una biblioteca similar a los motores físicos que existen para desarrollar juegos, ...
    • Modelación de plantas termosolares de torre central 
      Vivanco Torres, Solange Elizabeth (Universidad de Chile, 2019)
      Hasta ahora el estudio en cuanto a modelación de plantas termosolares de torre central se había enfocado, en su mayoría, al campo de helióstatos y el receptor, existiendo también algunos que consideran almacenamiento. ...
    • Evaluación de la producción de proteínas unicelulares utilizando Ulva rígida como fuente de carbono 
      Uarac Vivar, Yasser Janna (Universidad de Chile, 2019)
      Frente al aumento poblacional, la FAO proyecta un incremento de un 70% en la demanda de proteínas alimenticias, siendo la industria acuícola el principal foco que permite solventar esta necesidad. Por otra parte, el mercado ...