Ara es mostren els items 1994-2013 de 91983

  • A general MILP model for the sizing of islanded/grid-connected microgrids 

    Alabert Aldana, Aniol; Somoza Tornos, Ana; Hoz Casas, Jordi de la; Graells Sobré, Moisès (2016)
    Comunicació de congrés
    Accés restringit per política de l'editorial
    Recently, energy systems have experienced a change of paradigm, from a large-scale centr alized approach to the in-situ exploitation of renewabl e sources. Special atte ntion has been paid to microgrids, a particular case ...
  • A general procedure of estimating the population mean in the presence of non-response under double sampling using auxiliary information 

    Singh, H. P.; Kumar, Sunil (Institut d'Estadística de Catalunya, 2009)
    Article
    Accés obert
    In the present study, we propose a general class of estimators for population mean of the study variable in the presence of non-response using auxiliary information under double sampling. The expression of mean squared ...
  • A general schema for generating argumentation semantics from logic programming semantics 

    Nieves Sánchez, Juan Carlos; Osorio Galindo, Mauricio (2008-11)
    Report de recerca
    Accés obert
    In this paper, by considering the idea that argumentation semantics can be viewed as a special form of logic programming semantics with negation as failure, we show that any logic programming semantics as the stable model ...
  • A general stabilized formulation for incompressible fluid flow using finite calculus and the finite element method 

    Oñate Ibáñez de Navarra, Eugenio; García Espinosa, Julio; Bugeda Castelltort, Gabriel; Idelsohn Barg, Sergio Rodolfo (CIMNE, 2003-11)
    Capítol de llibre
    Accés restringit per política de l'editorial
    We present a general formulation for incompressible fluid flow analysis using the finite element method (FEM). The necessary stabilization for dealing with convective effects and the incompressibility condition are introduced ...
  • A general strategy for interactive decision-making in robotic platforms 

    Agostini, Alejandro Gabriel; Torras, Carme; Wörgötter, Florentin (2011)
    Report de recerca
    Accés obert
    This work presents an intergated strategy for planning and learning suitable to execute tasks with robotic platforms without any previous task specification. The approach rapidly learns planning operators from few action ...
  • A generalization of the Allen–Cahn equation 

    Miranville, Alain; Quintanilla de Latorre, Ramón (2015-04-01)
    Article
    Accés obert
    Our aim in this paper is to study generalizations of the Allen–Cahn equation based on a modification of the Ginzburg–Landau free energy proposed in S. Torabi et al. (2009, A new phase-field model for strongly anisotropic ...
  • A generalization of the Caginalp phase-field system based on the Cattaneo law 

    Miranville, Alain; Quintanilla de Latorre, Ramón (Elsevier, 2009)
    Article
    Accés restringit per política de l'editorial
    We consider in this article a generalization of the Caginalp model for phase transitions based on the Maxwell Cattaneo law, instead of the classical Fourier law. In particular, we prove the existence and uniqueness of ...
  • A generalized exact arbitrary clearance technique for navigation meshes 

    Oliva Martínez, Ramon; Pelechano Gómez, Núria (ACM, 2013)
    Text en actes de congrés
    Accés obert
    There are two frequent artifacts in crowd simulation, the first one appears when all agents attempt to traverse the navigation mesh sharing the same way point over portals, increasing the probability of collision against ...
  • A generalized finite-strain damage model for quasi-incompressible hyperelasticity using hybrid formulation 

    Comellas Sanfeliu, Ester; Bellomo, Facundo J.; Oller Martínez, Sergio Horacio (2016-03)
    Article
    Accés obert
    A new generalized damage model for quasi-incompressible hyperelasticity in a total Lagrangian finite-strain framework is presented. A Kachanov-like reduction factor (1 - D) is applied on the deviatoric part of the hyperelastic ...
  • A generalized method for the transient analysis of Markov models of fault-tolerant systems with deferred repair 

    Temsamani, Jamal; Carrasco, Juan A. (2009-09-15)
    Report de recerca
    Accés obert
    Randomization is an attractive alternative for the transient analysis of continuous time Markov models. The main advantages of the method are numerical stability, well-controlled computation error and ability to specify ...
  • A generalized method for the transient analysis of Markov models of fault-tolerant systems with deferred repair 

    Temsamani, J; Carrasco, Juan A. (2005-07)
    Article
    Accés obert
    Randomization is an attractive alternative for the transient analysis of continuous time Markov models. The main advantages of the method are numerical stability, well-controlled computation error, and ability to specify ...
  • A generalized seasonal persistent model for video traffic 

    Zuraniewski, Piotr; Rincón Rivera, David (Springer Berlin / Heidelberg, 2009-09)
    Comunicació de congrés
    Accés restringit per acord de confidencialitat
    Video tra±c generated with modern codecs is known to possess a complex statistical structure that includes short memory, long memory, and seasonal components. We propose a k-factor Generalized Autoregressive Moving Average ...
  • A generalized voltage droop strategy for control of multi-terminal DC grids 

    Rouzbehi, Kumars; Miranian, Arash; Luna Alloza, Álvaro; Rodríguez Cortés, Pedro (Institute of Electrical and Electronics Engineers (IEEE), 2013)
    Comunicació de congrés
    Accés restringit per política de l'editorial
    This paper proposes a generalized voltage droop (GVD) control strategy for control and power sharing in voltage source converter (VSC)-based multi-terminal DC (MTDC) grids. In the proposed approach, the conventional voltage ...
  • A generalized voltage droop strategy for control of multiterminal DC grids 

    Rouzbehi, Kumars; Miranian, Arash; Candela García, José Ignacio; Luna Alloza, Álvaro; Rodríguez Cortés, Pedro (2015-02)
    Article
    Accés obert
    This paper proposes a generalized voltage droop (GVD) control strategy for dc voltage control and power sharing in voltage source converter (VSC)-based multiterminal dc (MTDC) grids. The proposed GVD control is implemented ...
  • A generation method for arbitrary spatially-variant polaritzation 

    Schaschek, Fabian (Universitat Politècnica de Catalunya, 2011-09-07)
    Projecte/Treball Final de Carrera
    Accés obert
    A new approach for the generation of arbitrary spatially-variant polarization of a light beam has been developed by manipulating vertical and horizontal field component of the optical signal individually in a Mach-Zehnder ...
  • A generic architecture for Demand Response: the All4Green approach 

    Basmadjian, Robert; Lovasz, Gergö; Beck, Michael Till; de Meer, Hermann; Hesselbach Serra, Xavier; Botero Vega, Juan Felipe; Klingert, Sonja; Pérez Ortega, María; López, Juan Carlos; Stam, Andries; van Krevelen, Rick; di Girolamo, marco (Institute of Electrical and Electronics Engineers (IEEE), 2013)
    Text en actes de congrés
    Accés restringit per política de l'editorial
    Demand Response is a mechanism used in power grids to manage customers’ power consumption during critical situations (e.g. power shortage). Data centres are good candidates to participate in Demand Response programs due ...
  • A generic framework for median graph computation based on a recursive embedding approach 

    Ferrer Sumsi, Miquel; Karatzas, D; Valveny, Ernest; Bardaji Goikoetxea, Itziar; Bunke, Horst (2011)
    Article
    Accés obert
    The median graph has been shown to be a good choice to obtain a representative of a set of graphs. However, its computation is a complex problem. Recently, graph embedding into vector spaces has been proposed to obtain ...
  • A generic radio channel emulator to evaluate higher layer protocols in a CDMA system 

    Umbert Juliana, Anna; Díaz Romero, M. del Pilar (Institute of Electrical and Electronics Engineers (IEEE), 2000)
    Text en actes de congrés
    Accés obert
    Currently, we are involved in the standardisation process to specify the next mobile system generation. A wideband code division multiple access (WCDMA) system is considered in most of the region versions. It would be very ...
  • A generic simulator for aperture synthesis radiometers 

    Camps Carmona, Adriano José; Hyuk, Park; Barbosa Torralbo, José; Bandeiras, J.; D'Addio, Salvatore (Institute of Electrical and Electronics Engineers (IEEE), 2012)
    Text en actes de congrés
    Accés restringit per política de l'editorial
    ESA's SMOS mission has demonstrated that Synthetic Aperture Interferometric Radiometers can be a useful tool for Earth observation. Today, the NASA's GeoStar instrument (USA), ESA's GAS instrument (Europe), or CSSAR's GIMS ...
  • A generic simulator for aperture synthesis radiometers: Radiative transfer module and end-to-end tests 

    Camps Carmona, Adriano José; Hyuk, Park; Barbosa, José; Bandeiras, J.; Sousa, Ana; d'Addio, Salvatore; Martín Neira, Manuel (Institute of Electrical and Electronics Engineers (IEEE), 2014)
    Comunicació de congrés
    Accés restringit per política de l'editorial
    The Synthetic Aperture Interferometric Radiometer (SAIR) Performance Simulator (SAIRPS) is a very versatile software tool developed by Deimos Engenharia (Portugal) and the Universitat Politècnica de Catalunya-Barcelona ...