Ara es mostren els items 5559-5578 de 89173

  • An active power synchronizing controller for grid-connected power converters with configurable natural droop characteristics 

    Zhang, Weiyi; Luna Alloza, Álvaro; Candela García, José Ignacio; Rocabert Delgado, Joan; Rodríguez Cortés, Pedro (2015)
    Text en actes de congrés
    Accés restringit per política de l'editorial
    Improving the dynamics of the widely applied gridconnected power converters has been drawing a lot of interests in recent years. Since the currently installed grid-connected converters doesn’t shown inertia effect in power ...
  • An adaptative deterministic sequence for sampling-based motion planners 

    Rosell Gratacòs, Jan; Iñíguez Galbete, Pedro (2004-09)
    Report de recerca
    Accés obert
    This paper presents a deterministic sequence with good and useful features for sampling-based motion planners, On the one hand, the proposed sequence is able to generate samples over a hierarchical grid structure of the ...
  • An adaptative fuzzy logic enhancer for rejection of narrowband interference in DS-Spread Spectrum 

    Pérez Neira, Ana Isabel; Antón Haro, Carles; Lagunas Hernandez, Miguel A. (1998)
    Text en actes de congrés
    Accés obert
    This work develops a novel adaptive fuzzy line enhancer that, based on a fuzzy basis function expansion, successfully solves the non-linear problem of narrowband interference estimation and rejection in direct sequence-spread ...
  • An adaptative user interface for genealogical document transcription 

    Mayol Sarroca, Enric (Information Science Reference, 2011)
    Capítol de llibre
    Accés restringit per política de l'editorial
    Lately, genealogy has become a hobby not only in the United States, UK or France but also in many other countries where it is now widespread. The main sources of information for genealogists are different kinds of genealogical ...
  • An Adaptive algorithm to compute the medial axis transform of 2-D polygonal domains 

    Joan Arinyo, Robert; Pérez Vidal, Lluís; Gargallo Monllau, Elies (1995-10)
    Report de recerca
    Accés obert
    An adaptive algorithm to compute the medial axis transform of 2D polygonal domains with arbitrary genus is presented. The algorithm is based on the refinement of a coarse medial axis transform by subdividing the domain ...
  • An adaptive control strategy for postural stability using a wearable robot 

    Rajasekaran, Vijaykumar; Aranda López, Juan; Casals Gelpi, Alicia; Pons, Jose Luis (2015-11)
    Article
    Accés restringit per política de l'editorial
    Wearable robots are expected to expand the use of robotics in rehabilitation since they can widen the assistance application context. An important aspect of a rehabilitation therapy, in terms of lower extremity assistance, ...
  • An adaptive controller for bilateral teleoperators: transatlantic experiments using the internet 

    Nuño Ortega, Emmanuel; Basañez Villaluenga, Luis; de Alba Padilla, Carlos; López Franco, Carlos (2012)
    Comunicació de congrés
    Accés restringit per política de l'editorial
    A bilateral teleoperator is composed of a local and a remote manipulators interconnected through a communication channel. A human operator interacts with the local manipulator to remotely execute a given task via the ...
  • An adaptive controller for nonlinear teleoperators with variable time-delays 

    Sarras, Ioannis; Nuño, Emmanuel; Basañez Villaluenga, Luis (2014-10-01)
    Article
    Accés restringit per política de l'editorial
    In most real-life bilateral teleoperators the available physical parameters are uncertain and the communications exhibit variable time-delays. In order to confront these situations and only assuming that a bound of the ...
  • An Adaptive Cutaway with Volume Context Preservation 

    Grau Carrion, Sergi; Puig Puig, Anna (Springer Berlin / Heidelberg, 2009-11-26)
    Capítol de llibre
    Accés restringit per política de l'editorial
    Knowledge expressiveness of scientific data is one of the most important visualization goals. However, current volume visualization systems require a lot of expertise from the final user. In this paper, we present a ...
  • An adaptive design of an all-zero spectral estimator 

    Lagunas Hernandez, Miguel A.; Figueiras Vidal, Aníbal R.; Mariño Acebal, José Bernardo (Institute of Electrical and Electronics Engineers (IEEE), 1981)
    Text en actes de congrés
    Accés obert
  • An adaptive fixed-mesh ALE method for free surface flows 

    Baiges Aznar, Joan; Codina, Ramon; Pont Ribas, Arnau; Castillo, Ernesto (2017-01-01)
    Article
    Accés obert
    In this work we present a Fixed-Mesh ALE method for the numerical simulation of free surface flows capable of using an adaptive finite element mesh covering a background domain. This mesh is successively refined and unrefined ...
  • An adaptive gradient-search based algorithm for discriminative training of hmm's 

    Nogueiras Rodríguez, Albino; Mariño Acebal, José Bernardo; Monte Moreno, Enrique (Robert H. Mannel and Jordi Robert-Ribes, 1998)
    Comunicació de congrés
    Accés restringit per política de l'editorial
    Although having revealed to be a very powerful tool in acoustic modelling, discriminative training presents a major drawback: the lack of a formulation guaranteeing convergence in no matter which initial conditions, such ...
  • An adaptive ISMA-DS/CDMA MAC protocol for third-generation mobile communications systems 

    Pérez Romero, Jordi; Agustí Comes, Ramon; Sallent Roig, José Oriol (IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC, 2001-11)
    Article
    Accés obert
    In this paper, an inhibit sense multiple access–direct sequence/code division multiple access (ISMA-DS/CDMA) medium access control protocol for a packet transmission mobile radio network is presented. The main feature ...
  • An adaptive meshfree method for phase-field models of biomembranes. Part I: Approximation with maximum-entropy basis functions 

    Peco Regales, Christian; Arroyo Balaguer, Marino; Rosolen, Adrian Martin (2013-09)
    Article
    Accés restringit per política de l'editorial
    We present an adaptive meshfree method to approximate phase-field models of biomembranes. In such models, the Helfrich curvature elastic energy, the surface area, and the enclosed volume of a vesicle are written as functionals ...
  • An adaptive meshfree method for phase-field models of biomembranes. Part II: A Lagrangian approach for membranes in viscous fluids 

    Peco Regales, Christian; Arroyo Balaguer, Marino; Rosolen, Adrian Martin (2013-09)
    Article
    Accés restringit per política de l'editorial
    We present a Lagrangian phase-field method to study the low Reynolds number dynamics of vesicles embedded in a viscous fluid. In contrast to previous approaches, where the field variables are the phase-field and the fluid ...
  • An adaptive multiresolution method for speckle noise reduction in synthetic aperture radar images 

    Ferrando Bataller, Miquel (Institute of Electrical and Electronics Engineers (IEEE), 1999)
    Text en actes de congrés
    Accés obert
    This paper introduces a method for speckle noise reduction based on multiresolution algorithms and a new adaptive approach. It combines the characteristics for additive noise reduction of soft thresholding with the ...
  • An adaptive predictive approach for river level forecasting 

    Aguilar, Jose Vicente; Langarita, Pedro; Linares, Lorenzo; Gómez Valentín, Manuel; Rodellar Benedé, José (IEEE, 2011)
    Comunicació de congrés
    Accés restringit per política de l'editorial
    Efficient flood management requires accurate real time forecasts to allow early warnings, real time control of hydraulics structures or other actions. Commercially available computing tools typically use, for flow or level ...
  • An adaptive prefiltering method to improve the speed/accuracy tradeoff of voltage sequence detection methods under adverse grid conditions 

    Matas Alcalá, José; Castilla Fernández, Miguel; Miret Tomàs, Jaume; García de Vicuña Muñoz de la Nava, José Luis; Guzmán Solà, Ramon (Institute of Electrical and Electronics Engineers (IEEE), 2013-07-23)
    Article
    Accés restringit per política de l'editorial
    This paper deals with the improvement of the transient response and harmonic, subharmonic, and dc-offset voltage rejection capability of a grid voltage sequence detection scheme based on a second-order generalized integrator ...
  • An adaptive pyramid image coding system 

    Torres Urgell, Lluís; Sallent Ribes, Sebastián (Institute of Electrical and Electronics Engineers (IEEE), 1988)
    Text en actes de congrés
    Accés obert
    The Laplacian Pyramid is a new and efficient method for image encoding. The method is of increasing interest as band-pass pyramids and multiresolution images are being used in other image processing applications. The Pyramid ...
  • An adaptive remeshing procedure for proximity maneuvering spacecraft formations 

    Garcia Taberner, Laura; Masdemont Soler, Josep (2012)
    Article
    Accés obert
    We consider a methodology to optimally obtain reconfigurations of spacecraft formations. It is based on the discretization of the time interval in subintervals (called the mesh) and the obtainment of local solutions on ...