Enviaments recents

  • Nonlinear and detuning effects of the nutation angle in precessionally-forced rotating cylinder flow 

    Lopez Moscat, Juan Manuel; Marqués Truyol, Francisco (2016-06-16)
    Article
    Accés obert
    The flow in a rapidly rotating cylinder forced to precess through a nutation angle a is investigated numerically, keeping all parameters constant except a, and tuned to a triadic resonance at a = 1º. When increasing a, ...
  • An exactly solvable model in P.R.M.: quantization. II 

    Iranzo Fernández, Vicente; Llosa, J; Marqués Truyol, Francisco; Molina, A (1984-01)
    Article
    Accés obert
    The quantization of a priori hamiltonian predictive systems is studied. It is applied to quantize the family of N-particle relativistic models presented in ref. 1. The relativistic two-particle oscillator is studied in ...
  • 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 ...
  • Precession of a rapidly rotating cylinder flow: traverse through resonance 

    Marqués Truyol, Francisco; López Moscat, Juan Manuel (2015-10-06)
    Article
    Accés restringit per política de l'editorial
    Recent experiments using a rapidly rotating and precessing cylinder have shown that for specific values of the precession rate, aspect ratio and tilt angle, sudden catastrophic transitions to turbulence occur. Even if the ...
  • Numerical continuation methods for large-scale dissipative dynamical systems 

    Sánchez Umbría, Juan; Net Marcé, Marta (2016-11-22)
    Article
    Accés restringit per política de l'editorial
    A tutorial on continuation and bifurcation methods for the analysis of truncated dissipative partial differential equations is presented. It focuses on the computation of equilibria, periodic orbits, their loci of ...
  • A WRF simulation of an episode of contrails covering the entire sky 

    Mazón Bueso, Jordi; Pino González, David (2016-07-20)
    Article
    Accés obert
    On 21 September 2012 the entire sky was covered by contrails over the Gulf of Lyon (NW of the Mediterranean basin). These clouds were well recorded by ground observers as well as by Meteosat imagery. The atmospheric ...
  • Meteorological and hydrological analysis of major floods in NE Iberian Peninsula 

    Pino González, David; Ruiz Bellet, Josep Lluís; Balasch Solanes, Josep Carles; Tuset Mestre, Jordi; Barriendos Valve, Mariano; Mazón Bueso, Jordi; Castelltort, Xavier (Elsevier, 2016-09-30)
    Article
    Accés restringit per política de l'editorial
    This paper analyses the meteorological conditions and the specific peak flows of 24 catastrophic floods that affected NE Iberian Peninsula in the period 1842–2000. We classify these floods according to the affected area, ...
  • On the morphodynamic stability of intertidal environments and the role of vegetation 

    Kakeh Burgada, Nabil; Giovanni, Coco; Marani, Marco (Elsevier, 2016-07-01)
    Article
    Accés restringit per política de l'editorial
    We describe the coupled biotic and abiotic dynamics in intertidal environments using a point model that includes suspended sediment deposition, wave-and current-driven erosion, biofilm sediment stabilization, and sediment ...
  • Natural convection in a horizontal cylinder with axial rotation 

    Sánchez Casals, Odalys de la Caridad; Mercader Calvo, María Isabel; Batiste Boleda, Oriol; Alonso Maleta, María Aránzazu (AMER PHYSICAL SOC, 2016-06-23)
    Article
    Accés obert
    We study the problem of thermal convection in a laterally heated horizontal cylinder rotating about its axis. A cylinder of aspect ratio Gamma = H/2R = 2 containing a small Prandtl number fluid (sigma = 0.01) representative ...
  • Prediction of image partitions using Fourier descriptors: application to segmentation-based coding schemes 

    Marqués Truyol, Francisco; Gasull Llampallas, Antoni (1998-04)
    Article
    Accés obert
    This paper presents a prediction technique for partition sequences. It uses a region-by-region approach that consists of four steps: region parameterization, region prediction, region ordering, and partition creation. The ...

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