Browsing by Title Facultad de Ciencias Físicas y Matemáticas

Now showing items 16-35 of 20342

    • 3-coloreo en grafos con caminos y ciclos prohibidos 
      Rojas Anríquez, Alberto Benjamín (Universidad de Chile, 2019)
      El k-coloreo de vértices de un grafo es un ya conocido problema NP-completo, debido a esto, los esfuerzos se han concentrado en estudiar el problema restringido a ciertas clases de grafos, para intentar resolverlo en ...
    • 3-D CFD analysis of thermal stratification in an air thermocline tank analysis using copper slags as filler ... 
      Caroca A., Cardemil J.M., Ibarra M., Dinter F., Segovia V. (International Solar Energy Society, 2020)
    • 3-Hydroxykynurenine bound to eye lens proteins induces oxidative modifications in crystalline proteins ... 
      Ávila, Felipe; Ravello, Natalia; Zanocco, Antonio L.; Gamon, Luke F.; Davies, Michael J.; Silva, Eduardo (Elsevier Inc., 2019)
      Photosensitized reactions mediated by endogenous chromophores have been associated with the etiology of age-related cataract disease. Endogenous chromophores such as 3-hydroxykynurenine (3OHKN) can be found in both free ...
    • The 31 deg2 release of the stripe 82 x-ray survey: the point source catalog 
      La Massa, Stephanie M.; Urry, C. Megan; Cappelluti, Nico; Böhringer, Hans; Comastri, Andrea; Glikman, Eilat; Richards, Gordon; Ananna, Tonima; Brusa, Marcella; Cardamone, Carie; Chon, Gayoung; Civano, Francesca; Farrah, Duncan; Gilfanov, Marat; Green, Paul; Komossa, S.; Lira Teillery, Paulina; Makler, Martin; Marchesi, Stefano; Pecoraro, Robert; Ranalli, Piero; Salvato, Mara; Schawinski, Kevin; Stern, Daniel; Treister, Ezequiel; Viero, Marco (Cornell University, 2015)
      We release the next installment of the Stripe 82 X-ray survey point-source catalog, which currently covers 31.3 deg2 of the Sloan Digital Sky Survey (SDSS) Stripe 82 Legacy field. In total, 6181 unique X-ray sources are ...
    • 3D iris recognition using spin images 
      Benalcazar D.P., Montecino D.A., Zambrano J.E., Perez C.A., Bowyer K.W. (Institute of Electrical and Electronics Engineers Inc., 2020)
    • 3D kinematics of white dwarfs from the SPY project. II. 
      Pauli, E.-M.; Napiwotzki, R.; Heber, U.; Altmann, Martin; Odenkirchen, M. (EDP SCIENCES S A, 2006-02)
      We present the kinematics of a sample of 398 DA white dwarfs from the SPY project (ESO SN Ia Progenitor surveY) and discuss kinematic criteria for distinguishing of thin-disk, thick-disk, and halo populations. This is the ...
    • 3D multiple sound source localization by proposed cuboids nested microphone array in combination with ... 
      Dehghan Firoozabadi, Ali; Irarrázaval, Pablo; Adasme, Pablo; Zabala Blanco, David; Palacios Játiva, Pablo Geovanny; Azurdia Meza, César (MDPI, 2020)
      Sound source localization is one of the applicable areas in speech signal processing. The main challenge appears when the aim is a simultaneous multiple sound source localization from overlapped speech signals with an ...
    • 3D numerical modeling to support the design of contractions in supercritical flow channels 
      Martínez M., Niño Y. (University of Queenslandajc@maths.uq.edu.au, 2020)
    • 3D radiative transfer of intrinsically polarized dust emission based on aligned aspherical grains 
      Bertrang, Gesa H.-M.; Wolf, S. (Oxford University Pres, 2017)
      (Sub-)millimetre observations of the polarized emission of aligned aspherical dust grains enable us to study the magnetic fields within protoplanetary disc. However, the interpretation of these observations is complex. One ...
    • 3D sound interactive environments for blind children problem solving skills 
      Sánchez Ilabaca, Jaime; Sáenz, Mauricio (TAYLOR & FRANCIS LTD, 2006-08)
      Audio-based virtual environments have been increasingly used to foster cognitive and learning skills. A number of studies have also highlighted that the use of technology can help learners to develop effective skills such ...
    • 3D Spatial exploration by E. Coli echoes motor temporal variability 
      Figueroa Morales, Nuris; Soto, Rodrigo; Junot, Gaspard; Darnige, Thierry; Douarche, Carine; Martínez, Vincent A.; Lindner, Anke; Clément, Éric (American Physical Society, 2020)
      Unraveling bacterial strategies for spatial exploration is crucial for understanding the complexity in the organization of life. Bacterial motility determines the spatiotemporal structure of microbial and controls infection ...
    • 3He/4He Signature of Magmatic Fluids from Telica (Nicaragua) and Baru (Panama) Volcanoes, Central American ... 
      Rizzo, Andrea L.; Robidoux, Philippe; Aiuppa, Alessandro; Di Piazza, Andrea (MDPI, 2022)
      Featured Application The use of noble gas isotopic signature of fluid inclusions is increasingly being applied as a complement to traditional volcanic gas sampling and monitoring techniques. The chemical signature of fluid ...
    • 4-Allyl-2-methoxy-5-nitrophenyl acetate 
      Carrasco Altamirano, Héctor; Espinoza Catalán, Luis; Gallardo Araya, Claudio; Cardona, Wilson; Ibáñez, Andrés; Alvarez Thon, Luis (BLACKWELL, 2006-05)
      Molecules of the title compound, C12H13NO5, are linked into chains via weak C-H (...)pi( allyl) interactions and these chains are linked into sheets via C-H (...) O contacts; the sheets, in turn, are interconnected via ...
    • 4-{3,5-Dimethyl-4-[(E)-(4-methylphenyl)diazenyl]-1H-pyrazol-1-yl}benzonitrile 
      Bustos, Carlos; Schott, Eduardo; Mac-Leod-Carey, Desmond A.; Ibáñez, Andrés; Alvarez Thon, Luis (BLACKWELL, 2006-06)
      Mol-ecules in the title compound, C19H17N5, are linked into chains via weak C-H-...pi(cyano) inter-actions, and these chains are linked via C-H-...pi(arene) interactions to form a three-dimensional structure of parallel sheets.
    • 5-HT 2 receptor binding, functional activity and selectivity in N-benzyltryptamines 
      Toro-Sazo, Miguel; Brea, José; Loza, María I.; Cimadevila, Marta; Cassels Niven, Bruce (Public Library of Science, 2019)
      © 2019 Toro-Sazo et al. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the ...
    • 60 GHz Millimeter-wave Bottom-Layer Solutions: Multiplexing Access, Energy Awareness, and Peak-to-Average-Power ... 
      Estévez Montero, Claudio; Azurdia Meza, César (IEEE, 2015)
      A clear trend shows that cells are smaller, more homogeneously distributed, higher frequency oriented, and more energy conscious. This points toward wireless systems that implement millimeter-wave modulation; therefore, ...
    • 76 T dwarfs from the UKIDSS LAS: benchmarks, kinematics and an updated space density 
      Burningham, Ben; Cardoso, C. V.; Smith, L.; Leggett, S. K.; Smart, R. L.; Mann, A. W.; Dhital, S.; Lucas, P. W.; Tinney, C. G.; Pinfield, D. J.; Zhang, Z.; Morley, C.; Saumon, D.; Aller, K.; Littlefair, S. P.; Homeier, D.; Lodieu, N.; Deacon, N.; Marley, M. S.; Spaandonk, L. van; Baker, D.; Allard, F.; Andrei, A. H.; Canty, J.; Clarke, J.; Day-Jones, A. C.; Dupuy, T.; Fortney, J. J.; Gomes, J.; Ishii, M.; Jones, H. R. A.; Liu, M.; Magazzú, A.; Marocco, F.; Murray, D. N.; Rojas-Ayala, B.; Tamura, M. (Oxford University Press on behalf of the Royal Astronomical Society, 2013-07)
      We report the discovery of 76 new T dwarfs from the UKIRT Infrared Deep Sky Survey (UKIDSS) Large Area Survey (LAS). Near-infrared broad- and narrow-band photometry and spectroscopy are presented for the new objects, along ...
    • 7D-folding integral in a density-dependent microscopic optical model potential for nucleon-nucleus scattering 
      Arellano Sepúlveda, Hugo; Bauge, E. (AMER PHYSICAL SOC, 2011-09-14)
      Microscopic optical model potentials, based on density-dependent effective interactions, involve multidimensional integrals to account for the full Fermi motion of the target struck nucleon throughout the nucleus. If a ...
    • 8-13 mu m dust emission features in Galactic bulge planetary nebulae 
      Casassus Montero, Simón; Roche, P. F.; Aitken, D. K.; Smith, C. H. (BLACKWELL SCIENCE LTD, 2001-11-01)
      A sample of 25 infrared-bright planetary nebulae (PNe) towards the Galactic bulge is analysed through 8-13 mum spectroscopy. The classification of the warm dust emission features provides a measure of the C/O chemical ...
    • 870 mu m continuum observations of the bubble-shaped nebula Gum 31 
      Duronea, N.; Vásquez, J.; Gómez, L.; Cappa, C.; Firpo, V.; López Caraballo, C.; Rubio López, Mónica (EDP Sciences, 2015)
      Aims. We present here a study of the cold dust in the close environs of the ring nebula Gum 31. We aim at deriving the physical properties of the molecular gas and dust associated with the nebula, and investigating its ...