Subcomunitats

Enviaments recents

  • Comparison of Methods to Predict Ozone Concentration 

    Orozco Luquero, Jorge (2004-01)
    Report de recerca
    Accés obert
    Several methods have been applied to the prediction of ozone concentration. In this work, an Heterogeneous Neural Network (HNN) is used to perform the same task. Different capabilities of HNN are exploited like imprecision ...
  • EU-Rent car rentals specification 

    Frias, Leonor; Queralt Calafat, Anna; Olivé Ramon, Antoni (2003-12)
    Report de recerca
    Accés obert
    EU-Rent is a widely known case study being promoted as a basis for demonstration of product capabilities. However, no in-depth case analysis neither specification has been developed. Therefore, it was considered ...
  • CO oxidation and COPrOx over preformed Au nanoparticles supported over nanoshaped CeO2 

    Soler Turu, Lluís; Casanovas Grau, Albert; Urrich, Aitor; Angurell Purroy, Inmaculada; Llorca Piqué, Jordi (2016-02-10)
    Article
    Accés restringit per política de l'editorial
    Au/CeO2 (0.25% wt. Au) catalysts were prepared by anchoring preformed Au nanoparticles over ceria polycrystals, cubes and rods and tested in the oxidation of CO and COPrOx. The use of preformed Au nanoparticles assured a ...
  • Tools to deal with under-constrained geometric constraint graphs 

    Joan Arinyo, Robert; Soto Riera, Antoni; Vila Marta, Sebastià (2003-12)
    Report de recerca
    Accés obert
    We present tools for handling geometric constraint problems with under-constrained configurations. The basic idea is to add to the given set of constraints a set of extra constraints which can be defined either automatically ...
  • On fluctuations in interfacial fluid systems 

    Torner Sabata, Lluís; Rubí Capaceti, José Miguel; Díaz Guilera, Albert (1989-06)
    Article
    Accés restringit per política de l'editorial
    We study the propagation of the temperature fluctuations in a system in the presence of an interface. Such fluctuations originate from surface noise sources which are introduced through the random parts of the interfacial ...
  • HVDC-based modular multilevel converter in the STATCOM operation mode 

    Antonio Ferreira, Abel; Gomis Bellmunt, Oriol; Teixidó, Miquel (Institute of Electrical and Electronics Engineers (IEEE), 2016)
    Text en actes de congrés
    Accés restringit per política de l'editorial
    In a futuristic vision, deeply interconnected ac and dc networks are expected, which would be restructured over the time in order to maximize the power transmission efficiency. In some grid configurations, grid-tied inverters ...
  • Mode count in planar graded-index waveguides 

    Torner Sabata, Lluís; Canal Bienzobas, Fernando; March, L. de (1988)
    Article
    Accés restringit per política de l'editorial
    The cut-off properties for the TE modes of planar graded-index waveguides have been analysed in terms of the usual normalised waveguide parameters by using the multilayer technique. High accuracy has been achieved. The ...
  • Soliton excitation and mutual locking of light beams in bulk quadratic nonlinear crystals 

    Torner Sabata, Lluís; Wright, E M (1996-05)
    Article
    Accés restringit per política de l'editorial
    The mutual trapping and locking of intense fundamental and second-harmonic continuous-wave light beams propagating in bulk crystals with large second-order nonlinearities is investigated. We report the outcome of a ...
  • Reentry produced by small-scale heterogeneities in a discrete model of cardiac tissue 

    Alonso Muñoz, Sergio; Bär, Markus (2014)
    Text en actes de congrés
    Accés obert
    Reentries are reexcitations of cardiac tissue after the passing of an excitation wave which can cause dangerous arrhythmias like tachycardia or life-threatening heart failures like fibrillation. The heart is formed by ...
  • Spatial correlations for temperature fluctuations from surface noise 

    Rubí Capaceti, José Miguel; Díaz Guilera, Albert; Torner Sabata, Lluís (1987-02)
    Article
    Accés restringit per política de l'editorial
    The equal-time or static temperature correlation function from fluctuations originated at a surface is computed. Such fluctuations come from a random heat flux appearing in Newton's law of cooling. The correlation is studied ...

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