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Ara es mostren els items 13681-13700 de 245567

    • 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 adaptable approach to learn realistic legged locomotion without examples 

      Ordonez-Apraez, Daniel; Agudo Martínez, Antonio; Moreno-Noguer, Francesc; Martín Muñoz, Mario (2022)
      Text en actes de congrés
      Accés obert
      Learning controllers that reproduce legged locomotion in nature has been a long-time goal in robotics and computer graphics. While yielding promising results, recent approaches are not yet flexible enough to be applicable ...

    • 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 Gelpí, Alicia; Pons, Jose Luis (2015-11)
      Article
      Accés obert
      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 controller to save dynamic energy in LP-NUCA 

      Suárez Gracía, Dario; Monreal Arnal, Teresa; Viñals Yúfera, Víctor (Universidad de La Laguna. Servicio de Publicaciones, 2011)
      Text en actes de congrés
      Accés obert
      Portable devices often demand powerful processors to run computing intensive applications, such as video playing or gaming, and ultra low en-ergy consumption to extend device uptime. Such con-flicting requirements are hard ...

    • An Adaptive Cutaway with Volume Context Preservation 

      Grau Carrión, 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
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    • An adaptive disturbance rejection control scheme for voltage regulation in DC micro-grids 

      Raveendran Nair, Unnikrishnan; Costa Castelló, Ramon; Ramos Fuentes, German A. (Institute of Electrical and Electronics Engineers (IEEE), 2019)
      Text en actes de congrés
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      Uncertain generation by renewable sources and load variations have resulted in adding energy storage systems in the grid to maintain grid parameters (voltage, frequency) within prescribed limits. The disturbances being ...

    • An adaptive event-based system for anytime, anywhere, awareness services in online teamworks 

      Kolici, Vladi; Xhafa Xhafa, Fatos; Caballé Llobet, Santiago; Barolli, Leonard (2017-10-06)
      Article
      Accés obert
      The fast development in mobile technologies is drastically changing the way people work, learn, collaborate and socialise. One such important activity that has emerged and is being consolidated more each time is the online ...

    • An adaptive Finite Element strategy for the numerical simulation of additive manufacturing processes 

      Baiges Aznar, Joan; Chiumenti, Michele; Filho, Carlos Augusto Moreira; Cervera Ruiz, Miguel; Codina, Ramon (Elsevier, 2021-01)
      Article
      Accés obert
      In this work an adaptive Finite Element strategy to deal with the numerical simulation of Additive Manufacturing (AM) processes is presented. The Selective Laser Melting (SLM) is chosen as the reference technology because ...

    • 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 inexact Uzawa algorithm based on polynomial-degree-robust a posteriori estimates for the Stokes problem 

      Čermák, Martin; Hecht, Frédéric; Tang, Zuqi; Vohralík, Martin (CIMNE, 2015)
      Text en actes de congrés
      Accés obert
      In this paper, we are interested in designing an adaptive version of the inexact Uzawa algorithm [4] applied to the linear Stokes problem solved by the finite element method. We present an a posteriori error estimate ...

    • An adaptive ISMA-DS/CDMA MAC protocol for third-generation mobile communications systems 

      Pérez Romero, Jordi; Agustí Comes, Ramon; Sallent Roig, 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 ...