Browsing by Title Facultad de Ciencias Físicas y Matemáticas

Now showing items 11928-11947 of 22095

    • Implications of Superstatistics for steady-state plasmas 
      Davis, Sergio; Jain, Jalaj; González, Diego; Gutiérrez, Gonzalo (Institute of Physics Publishing, 2018)
      Colissionless plasmas are non-extensive systems which, due to the long-range interaction between their components, are incapable of reaching thermal equilibrium, even in a steady state. These systems cannot, therefore, be ...
    • Implications of the cosmic background imager polarization data 
      Sievers, J. L.; Achermann, C.; Bond, J. R.; Bronfman Aguiló, Leonardo; Bustos, R.; Contaldi, C. R.; Dickinson, C.; Ferreira, P. G.; Jones, M. E.; Lewis, A. M.; Mason, B. S.; May Humeres, Jorge; Myers, S. T.; Oyarce, N.; Padin, S.; Pearson, T. J.; Pospieszalski, M.; Readhead, A. C. S.; Reeves, R.; Taylor, A. C.; Torres, S. (2007)
      We present new measurements of the power spectra of the E mode of cosmic microwave background (CMB) polarization, the temperature T, the cross-correlation of E and T, and upper limits on the B mode from 2.5 yr of dedicated ...
    • Implications on 1 + 1 D tsunami runup modeling due to time features of the earthquake source 
      Fuentes, M. E.; Riquelme, S.; Ruiz, J.; Campos Muñoz, Jaime (Springer, 2018)
      The time characteristics of the seismic source are usually neglected in tsunami modeling, due to the difference in the time scale of both processes. Nonetheless, there are just a few analytical studies that intended to ...
    • Implicit constitutive relations for describing the response of visco-elastic bodies 
      Bustamante, R.; Rajagopal, K. R.; Orellana, O.; Meneses, R. (Elsevier, 2020)
      A constitutive relation is proposed for viscoelastic bodies that is a generalization of the classic Kelvin–Voigt model, wherein the left Cauchy–Green tensor, the symmetric part of the velocity gradient, and the Cauchy ...
    • Implicit constitutive relations for visco-elastic solids: Part II. Non-homogeneous deformations 
      Bustamante, R.; Rajagopal, K. R.; Orellana, O.; Meneses, R. (Elsevier, 2020)
      A constitutive relation was developed in Part I for describing the response of a class of visco-elastic bodies, wherein the left Cauchy–Green tensor, the symmetric part of the velocity gradient, and the Cauchy stress ...
    • Implicit equations for thermoelastic bodies 
      Bustamante Plaza, Roger; Rajagopal, K. R. (Elsevier, 2017)
      In this paper we generalize the recent implicit models that have been put into place to describe the elastic response of bodies when thermal effects come into play. The implicit constitutive relations for thermoelastic ...
    • Implicit Euler Time-Discretization of a Class of Lagrangian Systems with Set-Valued Robust Controller 
      Adly, Samir; Brogliato, Bernard; Le, Ba Khiet (Heldermann Verlag, 2016)
      A class of Lagrangian continuous dynamical systems with set-valued controller and subjected to a perturbation force has been thoroughly studied in [3]. In this paper, we study the time discretization of these set-valued ...
    • Implicit HCI in geocollaborative hyperstories environments 
      Llull Torres, Rodrigo Alberto (Universidad de Chile, 2024)
      Geocollaborative hyperstories have been employed in contexts like cultural heritage, education, travel reporting, quest narratives and biographies, and are often used in mobile environments due to the capacity of cellphones ...
    • Implicit, semi-analytical solution of the generalized Riemann problem for stiff hyperbolic balance laws 
      Toro, Eleuterio F.; Montecinos, Gino I. (Elsevier, 2015)
      We present a semi-analytical, implicit solution to the generalized Riemann problem (GRP) for non-linear systems of hyperbolic balance laws with stiff source terms. The solution method is based on an implicit, time Taylor ...
    • Implied correlation and option returns 
      Szmulewicz Fierro, Daniel Eduardo (Universidad de Chile, 2020)
      La presente tesis estudia si la correlación es un factor de riesgo sistemático, analizando su efecto en el mercado de opciones. Para este propósito, calculamos la correlación implícita, como una medida de la correlación ...
    • Importancia de la formación cerro Empexa en el emplazamiento de depósitos tipo pórfido cuprífero entre los ... 
      Cortés Ramírez, Eduardo Andrés (Universidad de Chile, 2017)
      El objetivo principal de este trabajo es definir si la discontinuidad basal de la Fm. Cerro Empexa o alguna posición estratigráfica dentro de ella, juega un rol en el control de la formación de pórfidos cupríferos, con el ...
    • Importancia de la modelación de empalmes monofásicos y puestas a tierra en sistemas de distribución de baja ... 
      Gaete Pizarro, Diego Paulo (Universidad de Chile, 2024)
      En el contexto del cambio climático, la adopción de tecnologías bajas en emisiones de carbono a nivel residencial se presenta como una opción para mitigar los efectos ambientales y promover el uso de energías limpias. Sin ...
    • Importancia del rastreo de la escorrentía en modelos hidrológicos: Aplicación en la cuenca del río Cautín, Chile 
      Cortés Salazar, Nicolás Augusto (Universidad de Chile, 2022)
      Los modelos hidrológicos a macro-escala son típicamente implementados en forma espacialmente distribuida, por lo que se componen de diferentes unidades de modelación que, en conjunto, intentan describir la heterogeneidad ...
    • Imprints of galaxy evolution on HII regions Memory of the past uncovered by the CALIFA survey 
      Sánchez, S. F.; Pérez, E.; Rosales Ortega, F.; Miralles Caballero, D.; López Sánchez, Ángel R.; Iglesias Páramo, J.; Marino, R. A.; Sánchez Menguiano, L.; García Benito, R.; Mast, D.; Mendoza, M. A.; Papaderos, P.; Ellis, S.; Galbany, Lluis; Kehrig, C.; Monreal Ibero, A.; González Delgado, R. M.; Mollá, M.; Ziegler, B.; Lorenzo Cáceres, A. de; Mendez Abreu, J.; Bland Hawthorn, J.; Bekeraité, S.; Roth, M. M.; Pasquali, A.; Díaz, A.; Bomans, D.; Ven, G. van de; Wisotzki, L. (EDP Sciences, 2015)
      Context. Hii regions in galaxies are the sites of star formation, so they are special places for understanding the build-up of stellar mass in the universe. The line ratios of this ionized gas are frequently used to ...
    • Improved analysis of a max-cut algorithm based on spectral partitioning 
      Soto San Martín, José (SIAM, 2015)
      Trevisan [SIAM J. Comput., 41 (2012), pp. 1769-1786] presented an algorithm for Max-Cut based on spectral partitioning techniques. This is the first algorithm for Max-Cut with an approximation guarantee strictly larger ...
    • Improved detection of influenza A virus from blue-winged teals by sequencing directly from swab material 
      Ferreri, Lucas M.; Ortiz, Lucia; Geiger, Ginger; Barriga, Gonzalo P.; Poulson, Rebecca; Gonzalez-Reiche, Ana Silvia; Crum, Jo Anne; Stallknecht, David; Moran, David; Cordon-Rosales, Celia; Rajao, Daniela; Perez, Daniel R. (John Wiley and Sons Ltd, 2019)
      Abstract: The greatest diversity of influenza A virus (IAV) is found in wild aquatic birds of the orders Anseriformes and Charadriiformes. In these birds, IAV replication occurs mostly in the intestinal tract. Fecal, ...
    • Improved Double-jump 2 Pulse to Compensate Frequency Offset in MQAM-OFDM Systems 
      Zabala-Blanco D., Azurdia-Meza C.A., Palacios Jativa P. (Institute of Electrical and Electronics Engineers Inc., 2020)
    • Improved dual sinc pulses to reduce ICI power and PAPR in OFDM-based systems 
      Kamal, Shaharyar; Kang, Hojin; Azurdia Meza, César A.; Kim, Dong Seong (Ksii-Kor Soc Internet Informationkor SCI & Technol CTR, 2020)
      A newfangled family of Nyquist-I pulses is proposed and named improved dual sinc pulse (IDSP). The IDSP is designed to improve performance in orthogonal frequency division multiplexing (OFDM)-based systems. The IDSP is ...
    • Improved finite element model of a tall building in Santiago of Chile using seismic records 
      Garrido Gamboa, Matías Eduardo (Universidad de Chile, 2021)
      Historically the structural models used for structural design have been developed using accepted parameters (damping, the level of cracking of reinforced concrete elements, the magnitude and distribution of masses and ...
    • Improved interpolation inequalities on the sphere 
      Dolbeault, Jean; Esteban, María J.; Kowalczyk, Michal; Loss, Michael (American Institute Of Mathematical Sciences, 2014)
      This paper contains a review of available methods for establishing improved interpolation inequalities on the sphere for subcritical exponents. Pushing further these techniques we also establish some new results, ...