Ara es mostren els items 38288-38307 de 84411

  • Fórmulas prácticas para el diseño de canales sin revestir en terrenos aluviales 

    Farias, Héctor Daniel (Fundación para el Fomento de la Ingeniería del Agua, 1995-09)
    Article
    Accés obert
    Se presentan tres conjuntos de fórmulas prácticas, con una base racional, para el diseño de canales sin revestir excavados en terrenos aluviales finos. Las ecuaciones, del tipo "régimen", permiten estimar la geometría ...
  • Fórum Universal de las Culturas - Barcelona 2004: diálogo ciudad y ciudadanos del siglo XXI 

    Autor desconegut (Escola Tècnica Superior d'Arquitectura del Vallès, 2004)
    Article
    Accés obert
  • fP2P-HN: a P2P-based route optimization solution for mobile IP and NEMO clients 

    Cabellos Aparicio, Alberto; Cuevas, Rubén; Domingo Pascual, Jordi; Cuevas, Ángel; Guerrero, Carmen (IEEE Computer Society Publications, 2009-06-11)
    Text en actes de congrés
    Accés obert
    Wireless technologies are rapidly evolving and the users are demanding the possibility of changing its point of attachment to the Internet (i.e. default router) without breaking the IP communications. This can be achieved ...
  • FPGA based label processor for large scale optical packet switch node 

    Osers Benaim, Alan (Universitat Politècnica de Catalunya, 2011-09-09)
    Projecte/Treball Final de Carrera
    Accés obert
    English: The Internet demand is leading us into the creation of faster and more efficient networks. At the present time the servers that hold the mayor part of the cloud are grouped in thousands inside clusters. A cluster ...
  • FPGA based robust open transistor fault diagnosis and fault tolerant sliding mode control of a five-phase PM motor drive 

    Moreno Eguilaz, Juan Manuel; Salehi Arashloo Arashloo, Ramin (2015-01)
    Article
    Accés restringit per política de l'editorial
    The voltage-source inverters (VSI) supplying a motor drive are prone to open transistor faults. To address this issue in faulttolerant drives applicable to electric vehicles, a new open transistor fault diagnosis (FD) ...
  • FPGA development for measuring differential phase in real time 

    Llop Vallverdú, Cristina (Universitat Politècnica de Catalunya, 2015-07-30)
    Projecte Final de Màster Oficial
    Accés obert
    Technology assessment and proof of concept prototypes are necessary first step before any new concept and idea can be deployed as a fully proved on-board system. In this approach a radar cross-track interferometer has been ...
  • FPGA implementation of a contrast enhancement algorithm with discriminative filtering 

    Olivé Muñiz, Roger (Universitat Politècnica de Catalunya / Concordia University, 2013-07-18)
    Treball Final de Grau
    Accés obert
    [ANGLÈS] This project is the continuation of a research work focused on improving the current popular techniques for contrast enhancement in images. There are stills produced under very poor acquisition conditions, such ...
  • FPGA implementation of a PWM for a three-phase DC-AC multilevel active-clamped converter 

    Lupón Roses, Emilio; Busquets Monge, Sergio; Nicolás Apruzzese, Joan (2014-05)
    Article
    Accés restringit per política de l'editorial
    With the aim to implement a suitable controller for a three-phase dc-ac multilevel active-clamped converter to enable its use in practice, and as a first step toward a full closed-loop converter control implementation into ...
  • FPGA implementation of an LMS-based real-time adaptive predistorter for power amplifiers 

    Gilabert Pinal, Pere Lluís; Bertran Albertí, Eduardo; Montoro López, Gabriel; Berenguer Sau, Jordi (2009)
    Text en actes de congrés
    Accés obert
  • FPGA implementation of quadratic minimization algorithms for digital predistortion linearization 

    Fernandes Marques, Nuno Filipe (Universitat Politècnica de Catalunya, 2013-07-24)
    Treball Final de Grau
    Accés restringit per decisió de l'autor
    The PA is one of the most important subsystems of the RF transmitter and it is responsible of the main part of the overall transmitter's power consumption. In order to increase the efficiency of the PA, this project proposes ...
  • FPGA-based design of a step-up photovoltaic array emulator for the test of PV grid-connected inverters 

    Chavarría Roé, Javier; Biel Solé, Domingo; Guinjoan Gispert, Francisco; Poveda López, Alberto; Masana Nadal, Francisco; Alarcón Cot, Eduardo José (Institute of Electrical and Electronics Engineers (IEEE), 2014)
    Text en actes de congrés
    Accés restringit per política de l'editorial
    In this work, a proof of concept prototype for a photovoltaic array emulator based on a DC-DC Boost converter is presented. This design arises from the need to study in the laboratory new PV inverters based on Silicon ...
  • FPGA-based set-up for RF power amplifier dynamic Supply with real-time digital adaptive predistortion 

    Gilabert Pinal, Pere Lluís; Montoro López, Gabriel; Bertran Albertí, Eduardo; García García, José Angel (IEEE Press and Wiley, 2010)
    Comunicació de congrés
    Accés obert
  • FPLUME-1.0: An integral volcanic plume model accounting for ash aggregation 

    Folch, Arnau; Costa, Antonio; Macedonio, Giovannin (EGU Journals, 2016-02-02)
    Article
    Accés obert
    Eruption source parameters (ESP) characterizing volcanic eruption plumes are crucial inputs for atmospheric tephra dispersal models, used for hazard assessment and risk mitigation. We present FPLUME-1.0, a steady-state 1-D ...
  • FRA: A new fuzzy-based routing approach for optical transport networks 

    Ahvar, E.; Marín Tordera, Eva; Yannuzzi, Marcelo; Masip Bruin, Xavier; Ahvar, S. (2012)
    Text en actes de congrés
    Accés restringit per política de l'editorial
    Providing networks with QoS guarantees is one of the key issues to support current and future expected clients' demands. In this scenario, QoS routing is definitely critical as being responsible for defining those optimal ...
  • Fracaso electromecánico inducido por el ejercicio dinámico 

    Coarasa Liron de Robles, A.; Ros Mar, R.; Villarroya Aparicio, A. (Sociedad Ibérica de Biomecánica y Biomateriales, 1995)
    Article
    Accés obert
    Se investiga el fracaso muscular tras la realización de un ejercicio dinámico de alto esfuerzo, mediante la determinación de índices cuantitativos de función contráctil. Cincuenta adultos practican un test triangular ...
  • El Fracaso escolar en el primer curso de carrera de la Escuela de teleco de Madrid 

    Lorente Arenas, Santiago (Escola Tècnica Superior d'Enginyers de Telecomunicació de Barcelona, 1993)
    Article
    Accés obert
  • Fracional Laplacian in conformal geometry 

    González Nogueras, María del Mar; Chang, Sun-Yung Alice (2010-03)
    Report de recerca
    Accés obert
    In this note, we study the connection between the fractional Laplacian operator that appeared in the recent work of Ca arelli-Silvestre and a class of conformally covariant operators in conformal geometry.
  • Fracional Laplacian in conformal geometry 

    González Nogueras, María del Mar; Chang, Sun-Yung Alice (2010-04)
    Article
    Accés restringit per decisió de l'autor
    In this note, we study the connection between the fractional Laplacian operator that appeared in the recent work of Ca arelli-Silvestre and a class of conformally covariantoperators in conformal geometry.
  • El "fracking" a Catalunya 

    Dorda Fernández, Mariona (Universitat Politècnica de Catalunya, 2016-02-24)
    Treball Final de Grau
    Accés restringit per decisió de l'autor
  • Fractal approach of turbulent dispersion 

    Redondo Apraiz, José Manuel (CNRS, éditeur, 2010)
    Text en actes de congrés
    Accés obert
    There are several techniques suitable for measuring and modelling dispersion from scalar or velocity-field measurements in a turbulent flow. Each of these has peculiar features and sometimes, even different scaling, and a ...