Browsing by Title Facultad de Ciencias Físicas y Matemáticas

Now showing items 20060-20079 of 20579

    • Unipolar resistive switching behavior in Al2O3/HfO2 multilayer dielectric stacks: fabrication, characterization ... 
      Maestro Izquierdo, M.; González, M. B.; Jiménez Molinos, F.; Moreno, E.; Roldán, J. B.; Campabadal, F. (IOP Publishing, 2020)
      In this work, the impact of different HfO2/Al2O3-based multilayer dielectric stack (DS) configurations on the electrical characteristics and on the resistive switching (RS) performance of Ni/Insulator/Silicon devices has ...
    • Uniqueness and partial identification in a geometric inverse problem for the Boussinesq system 
      Doubova, Anna; Fernández Cara, Enrique; González Burgos, Manuel; Ortega Palma, Jaime (ELSEVIER, 2006-05-01)
      We analyze the inverse problem of the identification of a rigid body immersed in a fluid governed by the stationary Boussinesq system. First, we establish a uniqueness result. Then, we present a new method for the partial ...
    • Uniqueness of radially symmetric positive solutions for -Delta u+u=u(p) in an annulus 
      Felmer Aichele, Patricio; Martínez Salazar, Salomé; Tanaka, Kazunaga (ACADEMIC PRESS INC ELSEVIER SCIENCE, 2008-09-01)
      In this article we prove that the semi-linear elliptic partial differential equation -Delta u + u = u(p) in Omega u > 0 in Omega. u = 0 on partial derivative Omega possesses a unique positive radially symmetric ...
    • Universal compressed text indexing 
      Navarro, Gonzalo; Prezza, Nicola (Elsevier, 2019)
      The rise of repetitive datasets has lately generated a lot of interest in compressed self-indexes based on dictionary compression, a rich and heterogeneous family of techniques that exploits text repetitions in different ...
    • Universal indexes for highly repetitive document collections 
      Claude, Francisco; Fariña, Antonio; Martínez Prieto, Miguel; Navarro, Gonzalo (Pergamon-Elsevier, 2016)
      Indexing highly repetitive collections has become a relevant problem with the emergence of large repositories of versioned documents, among other applications. These Collections may reach huge sizes, but are formed mostly ...
    • Universal shape law of stochastic supercritical bifurcations: Theory and experiments 
      Agez, Gonzague; Clerc Gavilán, Marcel; Louvergneaux, Eric (AMER PHYSICAL SOC, 2008-02)
      A universal analytical expression for the supercritical bifurcation shape of transverse one-dimensional (1D) systems in the presence of additive noise is given. The stochastic Langevin equation of such systems is solved ...
    • Universal weak variable-length source coding on countably infinite alphabets 
      Silva, Jorge F.; Piantanida, Pablo (Institute of Electrical and Electronics Engineers, 2020)
      Motivated from the fact that universal source coding on countably infinite alphabets (infinity-alphabets) is not feasible, this work introduces the notion of "almost lossless source coding". Analog to the weak variable-length ...
    • Universality and criticality of a second-order granular solid-liquid-like phase transition 
      Castillo, Gustavo; Mujica Fernández, Nicolás; Soto Bertrán, Rodrigo (American Physical Society, 2015)
      We experimentally study the critical properties of the nonequilibrium solid-liquid-like transition that takes place in vibrated granular matter. The critical dynamics is characterized by the coupling of the density field ...
    • Universally composable simultaneous broadcast 
      Hevia, Alejandro (SPRINGER-VERLAG BERLIN, 2006)
      Simultaneous Broadcast protocols allow different parties to broadcast values in parallel while guaranteeing mutual independence of the broadcast values. The problem of simultaneous broadcast was suggested by Chor et al. ...
    • Universidades y desarrollo económico local - el caso de dos Centros de Investigación de la Universidad de ... 
      Pincheira Martínez, Cristian Baudilio (Universidad de Chile, 2015)
      Las iniciativas provenientes de las universidades regionales para impactar el desarrollo económico local son diversas en sus diseños, gestión y resultados, por lo que identificar las características deseables que deben ...
    • Unmasking the hidden NGTS-3Ab: A hot Jupiter in an unresolved binary system 
      Günther, Maximilian N.; Queloz, Didier; Gillen, Edward; Delrez, Laetitia; Bouchy, François; McCormac, James; Smalley, Barry; Almleaky, Yaseen; Armstrong, David J.; Bayliss, Daniel; Burdanov, Artem; Burleigh, Matthew; Cabrera, Juan; Casewell, Sarah L.; Cooke, Benjamin F; Csizmadia, Szilárd; Ducrot, Elsa; Eigmuller, Philipp; Erikson, Anders; Gänsicke, Boris; Gibsonq, Neale; Gillon, Michaël; Goad, Michael; Jehin, Emmanuël; Jenkins, James Stewart; Louden, Tom; Moyano, Maximiliano; Murray, Catriona; Pollacco, Don; Poppenhaeger, Katja; Rauer, Heike; Raynard, Liam; Smith, Alexis; Sohy, Sandrine; Thompson, Samantha; Udry, Stéphane; Watson, Christopher; West, Richard; Wheatley, Peter (Oxford University Press, 2018)
      We present the discovery of NGTS-3Ab, a hot Jupiter found transiting the primary star of an unresolved binary system. We develop a joint analysis of multi-colour photometry, centroids, radial velocity (RV) cross-correlation ...
    • Unoccupied interface and molecular states in thiol and dithiol monolayers 
      Correa Puerta, Jonathan; Campo, Valeria del; Henriquez, Ricardo; Esaulov, Vladimir A.; Hamoudi, Hicham; Flores Carrasco, Marcos; Haberle, Patricio (American Chemical Society, 2017)
      The electronic structure of self-assembled monolayers (SAMs) formed by thiols of different lengths and dithiol molecules bound to Au(111) has been characterized. Inverse photoemission spectroscopy (IPES) and density ...
    • Unprecedented arsenic photo-oxidation behavior of few- and multi-layer Ti3C2Tx nano-sheets 
      Rosales, Maibelin; García, Andreina; Fuenzalida Escobar, Víctor; Espinoza González, Rodrigo; Song, Guichen; Wang, Bo; Yu, Jinhong; Gracía Caroca, Francisco; Rosenkranz, Andreas (Elsevier, 2020)
      Water contaminated by arsenic is a tremendous risk for health and environment due to its toxic and carcinogenic nature thus asking for more advanced and efficient removal strategies. Therefore, the aim of this study is to ...
    • Unprecedented differences in the diamond nucleation density between carbon- and silicon-faces of 4H-silicon ... 
      Wang, Bo; Sukkaew, Pitsiri; Song, Guichen; Rosenkranz, Andreas; Lu, Yunxiang; Nishimura, Kazhihito; Wang, Jia; Lyu, Jilei; Cao, Yang; Yi, Jian; Ojamäe, Lars; Li, He; Jiang, Nan (Elsevier, 2020)
      4H-silicon carbides deposited by diamond films have wide applications in many fields such as semiconductor heterojunction, heat sink and mechanical sealing. Nucleation plays a critical role in the deposition of the diamond ...
    • Unpredictability in pedestrian flow: The impact of stochasticity and anxiety in the event of an emergency 
      Ramírez, M.; Torres, F.; Toledo, B. A.; Coello, M.; Correa-Burrows, P.; Rogan, J.; Valdivia, J. A. (Elsevier B.V., 2019)
      Random interactions among pedestrians, usually produced by psychological effects (e.g. anxiety), can produce collective nontrivial phenomena in their flow dynamics. Here, we improve our understanding on these phenomena by ...
    • Unraveling the Complex Behavior of Mrk 421 with Simultaneous X-Ray and VHE Observations during an Extreme ... 
      Acciari, V. A.; Ansoldi, S.; Antonelli, L. A.; Engels, A. Arbet; Baack, D.; Babic, A.; Banerjee, B.; Barres de Almeida, U.; Barrio, J. A.; Becerra Gonzalez, J.; Bednarek, W.; Bellizzi, L. K.; Bernardini, E.; Berti, A.; Besenrieder, J.; Bhattacharyya, W.; Bigongiari, C.; Biland, A.; Blanch, O.; Bonnoli, G.; Bosnjak, Z.; Busetto, G.; Carosi, R.; Ceribella, G.; Cerruti, M.; Chai, Y.; Chilingarian, A.; Cikota, S.; Colak, S. M.; Colin, U.; Colombo, E.; Contreras, J. L.; Cortina, J.; Covino, S.; D'Elia, V.; Da Vela, P.; Dazzi, F.; De Angelis, A.; De Lotto, B.; Del Puppo, F.; Delfino, M.; Delgado, J.; Depaoli, D.; Di Pierro, F.; Di Venere, L.; Do Souto Espineira, E.; Prester, D. Dominis; Donini, A.; Dorner, D.; Doro, M.; Elsaesser, D.; Ramazani, V. Fallah; Ferrara, G.; Foffano, L.; Fonseca, M. V.; Font, L.; Fruck, C.; Fukami, S.; Garcia Lopez, R. J.; Garczarczyk, M.; Gasparyan, S.; Gaug, M.; Giglietto, N.; Giordano, F.; Gliwny, P.; Godinovic, N.; Green, D.; Hadasch, D.; Hahn, A.; Hassan, T.; Herrera, J. J.; Hoang, J.; Hrupec, D.; Huetten, M.; Inada, T.; Inoue, S.; Ishio, K.; Iwamura, Y.; Jouvin, L.; Kajiwara, Y.; Kerszberg, D.; Kobayashi, Y.; Kubo, H.; Kushida, J.; Lamastra, A.; Lelas, D.; Leone, F.; Lindfors, E.; Lombardi, S.; Longo, F.; Lopez, M.; Lopez-Coto, R.; Lopez-Oramas, A.; Loporchio, S.; Machado de Oliveira Fraga, B.; Maggio, C.; Majumdar, P.; Makariev, M.; Mallamaci, M.; Maneva, G.; Manganaro, M.; Mannheim, K.; Maraschi, L.; Mariotti, M.; Martinez, M.; Mazin, D.; Mender, S.; Micanovic, S.; Miceli, D.; Miener, T.; Minev, M.; Miranda, J. M.; Mirzoyan, R.; Molina, E.; Moralejo, A.; Morcuende, D.; Moreno, V.; Moretti, E.; Munar-Adrover, P.; Noda, K.; Nogues, L.; Nozaki, S.; Ohtani, Y.; Oka, T.; Otero-Santos, J.; Palatiello, M.; Paneque, D.; Paoletti, R.; Paredes, J. M.; Pavletic, L.; Penil, P.; Peresano, M.; Persic, M.; Moroni, P. G. Prada; Prandini, E.; Puljak, I.; Rhode, W.; Ribo, M.; Rico, J.; Righi, C.; Rugliancich, A.; Saha, L.; Sahakyan, N.; Saito, T.; Sakurai, S.; Satalecka, K.; Schleicher, B.; Schmidt, K.; Schweizer, T.; Sitarek, J.; Snidaric, I.; Sobczynska, D.; Spolon, A.; Stamerra, A.; Strom, D.; Strzys, M.; Suda, Y.; Suric, T.; Takahashi, M.; Tavecchio, F.; Temnikov, P.; Terzic, T.; Teshima, M.; Torres-Alba, N.; Tosti, L.; van Scherpenberg, J.; Vanzo, G.; Vazquez Acosta, M.; Ventura, S.; Verguilov, V.; Vigorito, C. F.; Vitale, V.; Vovk, I.; Will, M.; Zaric, D.; Petropoulou, M.; Finke, J.; D'Ammando, F.; Balokovi, M.; Madejskic, G.; Mori, K.; Puccetti, Simonetta; Leto, C.; Perri, M.; Verrecchia, F.; Villata, M.; Raiteri, C. M.; Agudo, I.; Bachev, R.; Berdyugin, A.; Blinov, D. A.; Chanishvili, R.; Chen, W. P.; Chigladze, R.; Damljanovic, G.; Eswaraiah, C.; Grishina, T. S.; Ibryamov, S.; Jordan, B.; Jorstad, S. G.; Joshi, M.; Kopatskaya, E. N.; Kurtanidze, O. M.; Kurtanidze, S. O.; Larionova, E. G.; Larionova, L. V.; Larionov, V. M.; Latev, G.; Lin, H. C.; Marscher, A. P.; Mokrushina, A. A.; Morozova, D. A.; Nikolashvili, M. G.; Semkov, E.; Smith, P. S.; Strigachev, A.; Moody, J. W.; Sadun, A. C.; Hovatta, T.; Richards, J. L.; Max-Moerbeck Astudillo, Walter; Readhead, A. C. S.; Lahteenmaki, A.; Tornikoski, M.; Tammi, J.; Ramakrishnan, V.; Reinthal, R. (IOP Publishing, 2020)
      We report on a multiband variability and correlation study of the TeV blazar Mrk 421 during an exceptional flaring activity observed from 2013 April 11 to 19. The study uses, among others, data from GLAST-AGILE Support ...
    • Unraveling the Effects of Melt-Mantle Interactions on the Gold Fertility of Magmas 
      Tassara, Santiago; Reich Morales, Martín; Konecke, Brian A.; González Jiménez, José María; Simon, Adam C.; Morata Céspedes, Diego; Barra Pantoja, Fernando; Fiege, Adrián; Schilling, Manuel E.; Corgne, Alexandre (Frontiers Media, 2020)
      The oxidation state of the Earth's mantle and its partial melting products exert a key control on the behavior and distribution of sulfur and chalcophile and siderophile elements between the mantle and crust, underpinning ...
    • Unraveling the origin of the Andean IOCG clan: A Re-Os isotope approach 
      Barra Pantoja, Fernando; Reich Morales, Martín; Selby, David; Rojas, Paula; Simon, Adam C.; Salazar, Eduardo; Palma, Gisella (Elsevier, 2017)
      The Andean IOCG clan in the Coastal Cordillera of northern Chile, comprises the iron oxide-Cu-Au sensu stricto, the iron oxide-apatite (IOA), and the stratabound Cu(-Ag) deposits, also known as Manto-type Cu(-Ag) ...
    • Unraveling the Peruvian Phase of the Central Andes: stratigraphy, sedimentology and geochronology of the ... 
      Bascuñán, Sebastián; Arriagada Ortega, César; Le Roux, Jacobus; Deckart, Katja (Wiley-Blackwell, 2016)
      The Salar de Atacama Basin holds important information regarding the tectonic activity, sedimentary environments and their variations in northern Chile during Cretaceous times. About 4000m of high-resolution stratigraphic ...
    • Unresolved versus resolved: testing the validity of young simple stellar population models with VLT/MUSE ... 
      Kuncarayakti, H.; Galbany, Lluis; Anderson, J. P.; Krühler, T.; Hamuy Wackenhut, Mario (EDP Sciences, 2016)
      Context. Stellar populations are the building blocks of galaxies, including the Milky Way. The majority, if not all, extragalactic studies are entangled with the use of stellar population models given the unresolved nature ...