Facultad de Ciencias Físicas y Matemáticas: Recent submissions

Now showing items 5101-5120 of 21972

    • Why Me? Shedding light on random processes via randomness beacons 
      Hevia Angulo, Alejandro; Gómez, Camilo (Assoc Computing Machinery, 2020)
    • A Measurement of the CMB E-mode Angular Power Spectrum at Subdegree Scales from 670 Square Degrees of ... 
      Adachi, S.; Aguilar Faúndez, M. A. O.; Arnold, K.; Baccigalupi, C.; Barron, D.; Beck, D.; Bianchini, F.; Chapman, S.; Cheung, K.; Chinone, Y.; Crowley, K.; Dobbs, M.; El-Bouhargani, H.; Elleflot, T.; Errard, J.; Fabbian, G.; Feng, C.; Fujino, T.; Galitzki, N.; Goeckner Wald, N.; Groh, J.; Hall, G.; Hasegawa, M.; Hazumi, M.; Hirose, H.; Jaffe, A. H.; Jeong, O; Kaneko, D.; Katayama, N.; Keating, B.; Kikuchi, S.; Kisner, T.; Kusaka, A.; Lee, A. T.; León, D.; Linder, E.; Lowry, L. N.; Matsuda, F.; Matsumura, T.; Minami, Y.; Navaroli, M.; Nishino, H.; Pham, A. T. P.; Poletti, D.; Reichardt, C. L.; Segawa, Y.; Siritanasak, P.; Tajima, O.; Takakura, S.; Takatori, S.; Tanabe, D.; Tsai, C.; Verges, C.; Westbrook, B.; Zhou, Y. (IOP, 2020)
      We report a measurement of the E-mode polarization power spectrum of the cosmic microwave background (CMB) using 150 GHz data taken from 2014 July to 2016 December with the POLARBEAR experiment. We reach an effective ...
    • Investigating the magnetospheric accretion process in the young pre-transitional disk system DoAr 44 (V2062 ... 
      Bouvier, J.; Alecian, E.; Alencar, S. H. P.; Sousa, A.; Donati, J. F.; Perraut, K.; Bayo, A.; Rebull, L. M.; Dougados, C.; Duvert, G.; Berger, J. P.; Benisty, M.; Pouilly, K.; Folsom, C.; Moutou, C. (EDP, 2020)
      Context. Young stars interact with their accretion disk through their strong magnetosphere.Aims. We aim to investigate the magnetospheric accretion/ejection process in the young stellar system DoAr 44 (V2062 Oph).Methods. ...
    • A Photoionized Accretion Disk around a Young High-mass Star 
      Guzmán, Andres E.; Sanhueza, Patricio; Zapata, Luis; Garay Brignardello, Guido; Rodríguez, Luis Felipe (IOP, 2020)
      We present high spatial resolution (52 au) observations of the high-mass young stellar object (HMYSO) G345.4938+01.4677 made using the Atacama Large Millimeter/submillimeter Array. This O-type HMYSO is located at 2.38 kpc ...
    • ALMA survey of orion planck galactic cold clumps (ALMASOP). II. Survey overview: a first look at 1.3 mm ... 
      Dutta, Somnath; Lee, Chin-Fei; Liu, Tie; Hirano, Naomí; Liu, Sheng-Yuan; Tatematsu, Ken'ichi; Kim, Kee-Tae; Shang, Hsien; Sahu, Dipen; Kim, Gwanjeong; Moraghan, Anthony; Jhan, Kai-Syun; Hsu, Shih-Ying; Evans, Neal J.; Johnstone, Doug; Ward Thompson, Derek; Kuan, Yi-Jehng; Lee, Chang-Won; Lee, Jeong-Eun; Traficante, Alessio; Juvela, Mika; Vastel, Charlotte; Zhang, Qizhou; Sanhueza, Patricio; Soam, Archana; Kwon, Woojin; Bronfman Aguiló, Leonardo; Eden, David; Goldsmith, Paul F.; He, JinHua; Wu, Yuefang; Pelkonen, Veli Matti; Qin, Sheng-Li; Li, Shanghuo; Li, Di (IOP, 2020)
      Planck Galactic Cold Clumps (PGCCs) are considered to be the ideal targets to probe the early phases of star formation. We have conducted a survey of 72 young dense cores inside PGCCs in the Orion complex with the Atacama ...
    • Temperature differentially affects gene expression in antarctic thraustochytrid oblongichytrium sp. RT2316-13 
      Paredes, Paris; Larama, Giovanni; Flores, Liset; Leyton, Allison; Ili, Carmen Gloria; Asenjo De Leuze De Lancizolle, Juan Alfonso; Chisti, Yusuf; Shene, Carolina (MDPI, 2020)
      Oblongichytrium RT2316-13 synthesizes lipids rich in eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA). The content of these fatty acids in the total lipids depended on growth temperature. Sequencing technology ...
    • Subdifferential of the supremum function: moving back and forth between continuous and non-continuous settings 
      Correa, R.; Hantoute, A.; López, M. A. (Springer, 2020)
      In this paper we establish general formulas for the subdifferential of the pointwise supremum of convex functions, which cover and unify both the compact continuous and the non-compact non-continuous settings. From the ...
    • Strategies for transit fleet design considering peak and off-peak periods using the single-line model 
      Jara Díaz, Sergio; Fielbaum, Andrés; Gschwender Krause, Antonio (Elsevier, 2020)
      Transit demand and traffic conditions present relevant differences between peak and offpeak periods e.g. flows, trip lengths, congestion raising a relevant strategic design choice regarding the potential use of vehicles ...
    • Room temperature ferroelastic creep behavior of porous (La0.6Sr0.4)(0.95)Co0.2Fe0.8O3-delta 
      Arnauda, Bárbara; Akbari Fakhrabadi, Ali; Orlovskaya, Nina; Meruane Naranjo, Viviana; Araki, Wakako (MDPI, 2020)
      The time-dependent deformation of porous (La0.6Sr0.4)(0.95)Co0.2Fe0.8O3-delta (LSCF) under constant uniaxial compressive stress at room temperature has been studied. Both axial and lateral stress-strain deformation curves ...
    • Reconstructing past variations in environmental conditions and paleoproductivity over the last similar to ... 
      Muñoz, Práxedes; Rebolledo, Lorena; Dezileau, Laurent; Maldonado, Antonio; Mayr, Christoph; Cárdenas, Paola; Lange, Carina B.; Lalangui, Katherine; Sánchez, Gloria; Salamanca, Marco; Araya, Karen; Jara, Ignacio; Easton Vargas, Gabriel; Ramos, Marcel (Copernicus Gesellschaft MBH, 2020)
      The aim of this project was to establish past variations in the main oceanographic and climatic features of a transitional semiarid ecosystem on the north-central Chilean coast. We analyzed recent sedimentary records ...
    • Scale effect on the post-peak behavior of dacite rock uniaxial compression tests 
      Zúñiga Núñez, Carlos Javier (Universidad de Chile, 2020)
      Actualmente los yacimientos minerales se están explotando a niveles cada vez más profundos, lo que significa que las operaciones mineras de hoy deben enfrentar los desafíos de los altos esfuerzos. En este contexto, la ...
    • Vortices induced by electric and magnetic field and topological transitions in out of equilibrium systems 
      Zambra Aguirre, Valeska Tatiana (Universidad de Chile, 2020)
      Electrically driven nematic liquid crystal layers are ideal platform for studying the interactions of local topological defects, called vortices or umbilical defects. This thesis is devoted to experimentally and theoretically ...
    • Studying the multi-scale gas dynamics of disk galaxies through numerical simulations 
      Utreras Contreras, José Mauricio (Universidad de Chile, 2020)
      En los discos galácticos, la rotación galáctica establece el movimiento global del gas, su energía y su momentum pueden transferirse hacia las escalas espaciales de las nubes moleculares. Además, en el medio interestelar, ...
    • Modelo de negocios para una productora de harina de insecto 
      Peña Pool, Guillermo Antonio (Universidad de Chile, 2020)
      El presente trabajo de título tiene como objetivo general el diseño de un modelo de negocios para una productora de harina de insectos ubicada en Chile. Para lograr el objetivo general se desarrolló y utilizó una metodología ...
    • Metodología para selección de tecnologías LPWAN para diversas aplicaciones de internet de las cosas 
      Carrasco Galdame, Eduardo Elí (Universidad de Chile, 2020)
      El Internet de las Cosas (IoT, por su sigla en inglés) es una realidad que día a día se masifica más, considerándose una de las áreas de innovación que generará mayores capitales en los próximos años. Su popularidad ha ...
    • Modelación matemática de un proceso de producción de energía eléctrica a partir de hidrógeno y gas de ... 
      Bravo Riquelme, Diego Alejandro (Universidad de Chile, 2020)
      Se desarrolló un modelo matemático para simular la capacidad de generación de energía eléctrica de una celda de combustible de óxido sólido usando hidrógeno o gas de síntesis como combustible. Para validar este modelo, se ...
    • Predicting the kinematic evidence of gravitational instability 
      Hall, C.; Dong, R.; Teague, R.; Terry, J.; Pinte, C.; Paneque Carreño, T.; Veronesi, B.; Alexander, R. D.; Lodato, G. (IOP Publishing, 2020)
      Observations with the Atacama Large Millimeter/Submillimeter Array (ALMA) have dramatically improved our understanding of the site of exoplanet formation: protoplanetary disks. However, many basic properties of these disks ...
    • Crónica del Reyno: Copiosa Relación Bioarqueológica del Chile Colonial (siglos XVI al XIX) 
      Andrade, Pedro; Leyton Cataldo, Lía; Martínez Vásquez, Marlene; López Concha, Alexia; Dalenz, Joaquín; Fonseca Aravena, Katherine; Santana, Sebastián; Soto, Javier (Universidad Católica del Norte, 2020)
      A partir de los numerosos estudios y hallazgos arqueológicos correspondientes al período de la Colonia (siglos XVI – XIX) en el actual territorio chileno, se ha podido contar con una importante cantidad de información ...
    • Dynamic and kinematic characterization of the impulsive wavemaker system in a numerical wave tank 
      Barraud, C.; Hernández, R. H. (Amer Inst. Physics, 2020)
      We study the dynamical response of a piston-type wavemaker in a numerical wave tank. The two-dimensional, fully viscous unsteady Navier-Stokes equations are solved on a two-phase flow configuration using the volume of fluid ...
    • Energy nonequipartition in a collisional model of a confined quasi-two-dimensional granular mixture 
      Brito, Ricardo; Soto, Rodrigo; Garzó, Vicente (American Physical Society, 2020)
      A collisional model of a confined quasi-two-dimensional granular mixture is considered to analyze homogeneous steady states. The model includes an effective mechanism to transfer the kinetic energy injected by vibration ...