Facultad de Ciencias Físicas y Matemáticas: Recent submissions

Now showing items 10541-10560 of 22119

    • A magnetar model for the hydrogen rich super luminous supernova iPTF14hls 
      Dessart, Luc (EDP Sciences, 2018)
      Transient surveys have recently revealed the existence of H-rich super-luminous supernovae (SLSN; e. g., iPTF14hls, OGLE-SN14-073) that are characterized by an exceptionally high time-integrated bolometric luminosity, a ...
    • Modeling hydrogen production in a catalytic-inert packed bed reactor by rich combustion of heavy fuel oil 
      Gómez, J.; Mmbaga, J. P.; Hayes, R. E.; Toledo, M.; Gracia Caroca, Francisco (Elsevier, 2018)
      This work presents simulation results for the production of hydrogen by the rich combustion of heavy fuel oil in a dual zone packed bed reactor. The first zone provides catalytic thermal cracking of the fuel and is followed ...
    • Network-layer mobility management 
      Céspedes Umaña, Sandra (2018)
      Network-layer mobility management refers to the ability of a mobile node to maintain the IP address while it moves. In traditional IP networks, IP addresses are employed at the same time as host identifiers and locators. ...
    • The relevance of water recirculation in large scale mineral processing plants with a remote water supply 
      Ihle Bascuñán, Christian; Kracht Gajardo, Willy (Elsevier, 2018)
      Water and energy are essential requirements for mineral processing plants, and they can be either scarce or expensive. In the present paper, the implications of a remote water source location (typically the seashore) are ...
    • Structural shape optimization by IGABEM and particle swarm optimization algorithm 
      Sun, S.H.; Yu, T.T.; Nguyen, T.T.; Atroshchenko, Elena; Bui, T.Q. (Elsevier, 2018)
      In this paper, a new approach is developed for structural shape optimization, which consists in coupling the particle swarm optimization (PSO) algorithm and the isogeometric boundary element method (IGA-BEM). The IGA-BEM ...
    • Critical phenomena in quasi-two-dimensional vibrated granular systems 
      Guzmán, Marcelo; Soto Bertrán, Rodrigo (Amer Physical SOC, 2018)
      The critical phenomena associated to the liquid-to-solid transition of quasi-two-dimensional vibrated granular systems is studied using molecular dynamics simulations of the inelastic hard sphere model. The critical ...
    • On the behaviour of spherical inclusions in a cylinder under tension loads 
      Montero, Sebastián; Bustamante Plaza, Roger; Ortiz Bernardin, Alejandro (Universidad Politécnica Salesiana de Ecuador, 2018)
      In the present paper the behaviour of a hyperelastic body is studied, considering the presence of one, two and more spherical inclusions, under the effect of an external tension load. The inclusions are modelled as nonlinear ...
    • Molecular aspects of core shell intrinsic defect induced enhanced antibacterial activity of ZnO nanocrystals 
      Verma, Suresh K.; Jha, Ealisha; Panda, Pritam Kumar; Das, Jugal K.; Thirumurugan, Arun; Suar, Mrutyunjay; Parashar, S. K. S. (Future Medicine, 2018)
      Aim: To investigate molecular aspects of the antibacterial effect of size-dependent core-shell intrinsic defects of nanocrystalline ZnO synthesized through high energy ball milling technique. Materials & methods: Mechanically ...
    • A note on the wave equation for a class of constitutive relations for nonlinear elastic bodies that are not ... 
      Meneses, R.; Orellana, O.; Bustamante Plaza, Roger (Sage Publications, 2018)
      A class of constitutive relations for elastic bodies has been proposed recently, where the linearized strain tensor is expressed as a nonlinear function of the stress tensor. Considering this new type of constitutive ...
    • Human resource allocation in business process management and process mining: a systematic mapping study 
      Arias, Michael; Saavedra, Rodrigo; Marques, Maira R.; Muñoz Gama, Jorge; Sepúlveda, Marcos (Emerald Group Publishing Ltd, 2018)
      urpose Human resource allocation is considered a relevant problem in business process management (BPM). The successful allocation of available resources for the execution of process activities can impact on process ...
    • Antibiofouling thin-film composite membranes (TFC) by in situ formation of Cu-(m-phenylenediamine) oligomer complex 
      Rodríguez, B.; Ozturk, D.; Rosales, M.; Flores Carrasco, Marcos; García, A. (Springer, 2018)
      In situ formation of a Cu-(m-phenylenediamine) (Cu-mPD) oligomer complex from copper chloride during the interfacial polymerization process was successfully employed to produce modified thin-film composite reverse osmosis ...
    • The ALMA early science view of FUor/EXor objects - V. Continuum disc masses and sizes 
      Cieza, Lucas A.; Ruiz Rodriguez, Dary; Pérez, Sebastián; Casassus Montero, Simón; Williams, Jonathan P.; Zurlo, Alice; Principe, David A.; Hales, Antonio; Prieto, Jose L.; Tobin, John J.; Zhu, Zhaohuan; Marino, Sebastián (Oxford University Press, 2018)
      Low-mass stars build a significant fraction of their total mass during short outbursts of enhanced accretion known as FUor and EXor outbursts. FUor objects are characterized by a sudden brightening of similar to 5 mag at ...
    • A clumpy and anisotropic galaxy halo at redshift 1 from gravitational-arc tomography 
      López Morales, Sebastián; Tejos, Nicolás; Ledoux, Cedric; Barrientos, Felipe L.; Sharon, Keren; Rigby, Jane R.; Gladders, Michael D.; Bayliss, Matthew B.; Pessa, Ismael (Nature Publishing Group, 2018)
      Every star-forming galaxy has a halo of metal-enriched gas that extends out to at least 100 kiloparsecs(1-3), as revealed by the absorption lines that this gas imprints on the spectra of background quasars(4). However, ...
    • First results from the herschel and ALMA spectroscopic surveys of the SMC: The relationship between [C ... 
      Jameson, Katherine E.; Bolatto, Alberto D.; Wolfire, Mark; Warren, Steven R.; Herrera Camus, Rodrigo; Croxall, Kevin; Pellegrini, Eric W.; Smith, John David; Rubio López, Mónica; Indebetouw, Remy; Israel, Frank P.; Meixner, Margaret; Roman Duval, Julia; Loon, Jacco Th. van; Muller, Erik; Verdugo, Celia; Zinnecker, Hans; Okada, Yoko (IOP Publishing Ltd, 2018)
      The Small Magellanic Cloud (SMC) provides the only laboratory to study the structure of molecular gas at high resolution and low metallicity. We present results from the Herschel Spectroscopic Survey of the SMC (HS3), which ...
    • G331.512-0.103: An interstellar laboratory for molecular synthesis. I. the ortho-to-para ratios for CH3OH and CH3CN 
      Mendoza, Edgar; Bronfman Aguiló, Leonardo; Duronea, Nicolas U.; Lepine, Jacques R. D.; Finger Camus, Ricardo; Merello, Manuel; Hervías-Caimapo, Carlos; Gama, Diana R. G.; Reyes, Nicolás; Ake Nyman, Lars (IOP Publishing Ltd, 2018)
      Spectral line surveys reveal rich molecular reservoirs in G331.512-0.103, a compact radio source in the center of an energetic molecular outflow. In this first work, we analyze the physical conditions of the source by means ...
    • Geological modelling and validation of geological interpretations via simulation and classification of ... 
      Adeli, Amir; Emery, Xavier; Dowd, Peter (MDPI AG, 2018)
      This paper proposes a geostatistical approach for geological modelling and for validating an interpreted geological model, by identifying the areas of an ore deposit with a high probability of being misinterpreted, based ...
    • Investigation of the inner structures around HD169142 with VLT/SPHERE 
      Ligi, R.; Zurlo, A. (Oxford University Press, 2018)
      We present observations of the Herbig Ae star HD 169142 with the VLT/SPHERE instruments InfraRed Dual-band Imager and Spectrograph (IRDIS) (K1K2 and H2H3 bands) and the Integral Field Spectrograph (IFS) (Y, J and H bands). ...
    • Progenitors of low-luminosity Type II-Plateau supernovae 
      Lisakov, Sergey M.; Dessart, Luc; Hillier, D. John; Waldman, Roni; Livne, Eli (Oxford University Press, 2018)
      The progenitors of low-luminosity Type II-Plateau supernovae (SNe II-P) are believed to be red supergiant (RSG) stars, but there is much disparity in the literature concerning their mass at core collapse and therefore on ...
    • The Hercules stream as seen by APOGEE-2 South 
      Hunt, Jason A. S.; Bovy, Jo; Pérez Villegas, Angeles; Holtzman, Jon A.; Sobeck, Jennifer; Chojnowski, Drew; Santana, Felipe A.; Palicio, Pedro A.; Wegg, Christopher; Gerhard, Ortwin; Almeida, Andres; Bizyaev, Dmitry; Fernández Trincado, Jose G.; Lane, Richard R.; Longa Peña, Penélope; Majewski, Steven R.; Pan, Kaike; Roman Lópes, Alexandre (Oxford University Press, 2018)
      The Hercules stream is a group of comoving stars in the solar neighbourhood, which can potentially be explained as a signature of either the outer Lindblad resonance (OLR) of a fast Galactic bar or the corotation resonance ...
    • Studying the ultraviolet spectrum of the first spectroscopically confirmed supernova at redshift two 
      Smith, M.; Sullivan, M.; Nichol, R. C.; González Gaitán, Santiago (IOP Publishing Ltd, 2018)
      We present observations of DES16C2nm, the first spectroscopically confirmed hydrogen-free superluminous supernova (SLSN-I) at redshift z approximate to 2. DES16C2nm was discovered by the Dark Energy Survey (DES) Supernova ...