Ara es mostren els items 1-10 de 90021

  • Analytical modeling of reinforced concrete columns subjected to bidirectional shear 

    Osorio Bustamante, Edison; Bairán García, Jesús Miguel; Marí Bernat, Antonio Ricardo (2017-05-01)
    Article
    Accés restringit per política de l'editorial
    Under general seismic loading, reinforced concrete columns may be subjected to lateral loads in more than one direction. Available experimental data on columns subjected to bidirectional forces indicate that higher levels ...
  • A combined polling and ISMA-DS/CDMA protocol to provide QoS in packet mobile communications systems 

    Pérez Romero, Jordi; Agustí Comes, Ramon; Sallent Roig, José Oriol (Institute of Electrical and Electronics Engineers (IEEE), 2000)
    Text en actes de congrés
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    This paper presents a new mechanism that combines the flexibility of an access protocol such as ISMA-DS/CDMA with the ability of a polling mechanism to provide a specific bound for the access delay. This protocol is proposed ...
  • Performance evaluation of space-time block coding using a realistic mobile radio channel 

    Carrasco Espinosa, Héctor; Delgado Penin, José A.; Rodríguez Fonollosa, Javier (Institute of Electrical and Electronics Engineers (IEEE), 2000)
    Text en actes de congrés
    Accés obert
    This paper presents a performance evaluation of space-time block coding (STBC) employing a realistic mobile radio channel model in macrocellular and urban environments. The bit error rate (BER) is computed by Monte-Carlo ...
  • An implementation of UTRAN for WINEGLASS access network emulator 

    Badini, F; SCARRONE, E; Kuehn, E; Casadevall Palacio, Fernando José; Agustí Comes, Ramon (European Commission, 2000)
    Text en actes de congrés
    Accés obert
    3G systems are designed for support of a brand new set of services (like location based services) thus, the capability to evaluate their provision in the laboratory is mandatory for their deployment. The IST WINEGLASS ...
  • Issues on packet transmissioin strategies in a TDD-TD/CDMA scenario 

    Pérez Romero, Jordi; Agustí Comes, Ramon; Sallent Roig, José Oriol; Casadevall Palacio, Fernando José (European Commission, 2000)
    Text en actes de congrés
    Accés obert
    This paper presents a packet transmission scheme that deals with the problems of a TDD CDMA scenario with different levels of frame structure asymmetry in adjacent base stations by distributing the users in the slots ...
  • Wireless internet architecture and testbed for wineglass 

    Recker, S; Casadevall Palacio, Fernando José; Drögehorn, O; Heinrichs, B; Lanch, H Y; SCARRONE, E; Schreyer, O; Waldow, P (European Commission, 2000)
    Text en actes de congrés
    Accés obert
    One of the most challenging issues in the area of mobile communication is the deployment of IPbased wireless multimedia networks in public and business environments. The public branch may involve public mobile networks, ...
  • Improving the robustness of the usual fbe-based asr front-end 

    Nadeu Camprubí, Climent; Macho, D; Hernando Pericás, Francisco Javier (Mergablum, 2000)
    Text en actes de congrés
    Accés obert
    All speech recognition systems require some form of signal representation that parametrically models the temporal evolution of the spectral envelope. Current parameterizations involve, either explicitly or implicitly, ...
  • On the magnetic field integral equation discretized in linear triangles 

    Úbeda Farré, Eduard; Rius Casals, Juan Manuel; Parron, J; Cardama Aznar, Ángel (CIMNE, 2000)
    Text en actes de congrés
    Accés obert
    A formulation of the Method of Moments is presented for analyzing scattering problems involving three dimensional conductors. It is given an insight into the Magnetic Field Integral equation for which a triangle facet is ...
  • Monolingual and bilingual spanish-catalan speech recognizers developed from SpeechDat databases 

    Mariño Acebal, José Bernardo; Padrell, J; Moreno Bilbao, M. Asunción; Nadeu Camprubí, Climent (C. Draxler, 2000)
    Text en actes de congrés
    Accés obert
    Under the SpeechDat specifications, the Spanish member of SpeechDat consortium has recorded a Catalan database that includes one thousand speakers. This communication describes some experimental work that has been carried ...
  • Analysis of reflector and horn antennas using multilevel fast multipole algorithm 

    Heldring, Alexander; Rius Casals, Juan Manuel; Parrón Granados, Josep; Cardama Aznar, Ángel; Ligthart, L P (CIMNE, 2000)
    Text en actes de congrés
    Accés obert
    The MultiLevel Fast Multipole Algorithm (MLFMA) has been implemented in a Method of Moments code for arbitrarily shaped metal surfaces discretized in Rao, Wilton and Glisson (RWG) basisfunctions. The accuracy of the ...