Col·leccions

    Enviaments recents

    • Introduction of the human factor in the estimation of accident frequencies through fuzzy logic 

      González Dan, J.R.; Arnaldos Viger, Josep; Darbra Roman, Rosa Maria (2015-09-14)
      Article
      Accés restringit per política de l'editorial
      The frequency of occurrence of an accident scenario is one of the key aspects to take into consideration in the field of risk assessment. This frequency is commonly assessed by a generic failure frequency approach. Although ...
    • Using x-gram for efficient speech recognition 

      Bonafonte Cávez, Antonio; Mariño Acebal, José Bernardo (Robert H. Mannel and Jordi Robert-Ribes, 1998)
      Text en actes de congrés
      Accés obert
      X-grams are a generalization of the n-grams, where the number of previous conditioning words is different for each case and decided from the training data. X-grams reduce perplexity with respect to trigrams and need less ...
    • Análisis del comportamiento de un sistema QPSK-OFDM con intervalo de guarda utilizando simulación TOPSIM 

      Capillas, J D Diosado; Delgado Penin, José A. (1997)
      Text en actes de congrés
      Accés obert
    • Downlink beamforming in cellular mobile communications 

      Rodríguez Fonollosa, Javier; Goldberg, J; Vázquez Grau, Gregorio (Institute of Electrical and Electronics Engineers (IEEE), 1997)
      Text en actes de congrés
      Accés obert
      A technique for downlink transmission beamformer design in cellular mobile communications systems using an antenna array at the base station is presented. The method is based on estimation of an underlying spatial distribution ...
    • Fast computation of Cramer-Rao Bounds for TOA – An application to network-based positioning simulations 

      Garzon, Esteban; Valdiviezo, Santiago; René Jativa, E.; Vidal Manzano, José (Institute of Electrical and Electronics Engineers (IEEE), 2016)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      As part of a larger scope work that studies network-based positioning, that employs timing measures, this article proposes a methodology to add Cramer-Rao Bounds (CRBs) information to the propagation model. Moreover, it ...
    • Soluciones innovadoras en el cruce de túneles y estaciones L5 Metro Riyadh 

      Torralba Mendiola, Víctor; García Molina, Ángel; Plana Aguilar, Dídac; Pérez Ayuso, David; Ramos Schneider, Gonzalo; Arranz Marco, Tomás; Ainchil Lavín, Javier Pablo (2017)
      Text en actes de congrés
      Accés restringit per política de l'editorial
    • Túneles con dovelas armadas únicamente con fibras metálicas en Perú 

      Torralba Mendiola, Víctor; Romero Ballesteros, Antonio; Ramos Schneider, Gonzalo (2017)
      Text en actes de congrés
      Accés restringit per política de l'editorial
    • Bursty cell stream characterization 

      Solé Pareta, Josep; Domingo Pascual, Jordi; García Vidal, Jorge (1989-01)
      Report de recerca
      Accés obert
      Traffic cell stream generated by a single source (or a single connection traffic cell stream) may be characterized by its mean traffic intensity (or normalized mean cell rate) Ai, but also by its burstiness. "Burstiness ...
    • Traffic burstiness influence on ATM switching behavior 

      Solé Pareta, Josep; Domingo Pascual, Jordi; García Vidal, Jorge (1989-01)
      Report de recerca
      Accés obert
      Traffic studies is an important subject to evaluate the performance of the switching elements in an ATM environment. The main reason is that ATM cell streams have varible bitrate where the maximun peak bitrate can be several ...
    • Adaptacions al canvi climàtic en l’ús de l’aigua 

      Candela Lledó, Lucila; Tamoh, Karim; Gómez Valentín, Manuel; Olivares Cerpa, Gonzalo (2011)
      Report de recerca
      Accés obert
      El canvi climàtic és un repte indefugible de la nostra societat a principis del s. XXI. És per això que l’any 2007 l’Obra Social de CatalunyaCaixa va decidir recolzar el projecte ACCUA, plantejat per l’equip del Dr. Jaume ...

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