Enviaments recents

  • Global atmospheric dynamics investigated by using Hilbert frequency analysis 

    Zappala, Dario; Barreiro, Marcelo; Masoller Alonso, Cristina (2016-11-16)
    Article
    Accés obert
    The Hilbert transform is a well-known tool of time series analysis that has been widely used to investigate oscillatory signals that resemble a noisy periodic oscillation, because it allows instantaneous phase and frequency ...
  • Unravelling the community structure of the climate system by using lags and symbolic time-series analysis 

    Tirabassi, Giulio; Masoller Alonso, Cristina (Macmillan Publishers, 2016-07-11)
    Article
    Accés obert
    Many natural systems can be represented by complex networks of dynamical units with modular structure in the form of communities of densely interconnected nodes. Unraveling this community structure from observed data ...
  • Are the Pyrenees a barrier for the transport of birch (Betula) pollen from Central Europe to the Iberian Peninsula? 

    Izquierdo Miguel, Rebeca; Alarcón Jordán, Marta; Mazón Bueso, Jordi; Pino González, David; De Linares, Concha; Aguinagalde, Xabier; Belmonte Soler, Jordina (2017-01-01)
    Article
    Accés obert
    This work provides a first assessment of the possible barrier effect of the Pyrenees on the atmospheric transport of airborne pollen from Europe to the North of the Iberian Peninsula. Aerobiological data recorded in three ...
  • Unveiling temporal correlations characteristic to phase transition in the output intensity of a fiber laser 

    Aragoneses, Andrés; Carpi, Laura; Tarasov, N.; Churkin, D.V.; Torrent Serra, Maria del Carmen; Masoller Alonso, Cristina; Turitsyn, S.K. (2016-01-22)
    Article
    Accés obert
    We use advanced statistical tools of time-series analysis to characterize the dynamical complexity of the transition to optical wave turbulence in a fiber laser. Ordinal analysis and the horizontal visibility graph applied ...
  • Testing methodologies for quantifying physical models uncertainties. A comparative exercise using CIRCE and IPREM (FFTBM) 

    Freixa Terradas, Jordi; Alfonso Prieto-Puga, Elsa de; Reventós Puigjaner, Francesc (2016-08-15)
    Article
    Accés restringit per política de l'editorial
    The increasing importance of Best-Estimate Plus Uncertainty (BEPU) analyses in nuclear safety and licensing processes have lead to several international activities. The latest findings highlighted the uncertainties of ...
  • Formation of high-order acoustic Bessel beams by spiral diffraction gratings 

    Jimenez, Noe; Pico Vila, Rubén; Sánchez Morcillo, Victor José; Romero García, Vicenç; Garcia Raffi, Luis Miguel; Staliunas, Kestutis (2016-11-23)
    Article
    Accés obert
    The formation of high-order Bessel beams by a passive acoustic device consisting of an Archimedes' spiral diffraction grating is theoretically, numerically, and experimentally reported in this paper. These beams are ...
  • M31N 2008-12a - The remarkable recurrent Nova in M31: Panchromatic observations of the 2015 eruption 

    Darnley, M. J.; Henze, Martin; Bode, M. F.; Hachisu, I.; Hernanz Carbó, Margarita; Hornoch, Kamil; Hounsell, R.; Kato, M.; Ness, Jan-Uwe; Osborne, Julian; Page, Kim; Ribeiro, V. A.; Rodríguez-Gil, Pablo; Shafter, A. W.; Shara, M.; Steele, I. A.; Williams, S. C.; Figueira, Joana; José Pont, Jordi; Sala Cladellas, Glòria (2016-12-20)
    Article
    Accés obert
  • Slow light enabled wavelength demultiplexing 

    Hayran, Zeki; Turduev, M.; Botey Cumella, Muriel; Herrero Simon, Ramon; Staliunas, Kestutis; Kurt, H. (Institute of Electrical and Electronics Engineers (IEEE), 2016)
    Text en actes de congrés
    Accés obert
    Photonic crystal waveguides supporting band gap guided modes hold great potential to tailor the group velocity of propagating light. We propose and explore different wavelength demultiplexer design approaches that ...
  • Asymmetric light transmission in PT-Symmetric microring resonators 

    Giden, I.; Dadashi, Kh.; Botey Cumella, Muriel; Herrero Simon, Ramon; Staliunas, Kestutis; Kurt, Hamza (2016-03-15)
    Article
    Accés restringit per política de l'editorial
    We propose a new type of add-drop microring resonator made of gain and loss materials. Microring resonators are compact, narrow band, and optical channel dropping filters. In such linear systems, light transmission to ...
  • Atmospheric dispersion of airborne pollen evidenced by near-surface and columnar measurements in Barcelona, Spain 

    Sicard, Michaël; Izquierdo Miguel, Rebeca; Jorba i Casellas, Oriol; Alarcón Jordán, Marta; Belmonte Soler, Jordina; Comerón Tejero, Adolfo; Linares, Concha De; Baldasano Recio, José María (International Society for Photo-Optical Instrumentation Engineers (SPIE), 2016)
    Text en actes de congrés
    Accés obert
    Hourly measurements of pollen near-surface concentration and lidar-derived profiles of particle backscatter coefficients and of volume and particle depolarization ratios during a 5-day pollination event observed in Barcelona, ...

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