Ara es mostren els items 3869-3888 de 98282

  • A two-step monolithic method for efficient simulation of incompressible flows 

    Ryzhakov, Pavel; Cotela Dalmau, Jordi; Rossi, Riccardo; Oñate Ibáñez de Navarra, Eugenio (2014-04)
    Article
    Accés restringit per política de l'editorial
    We propose a simple technique for improving computational the e ciency of monolithic velocity-pressure solvers for incompressible ow problems. The idea consists in solving the discrete non-linear system of governing ...
  • A two-step monolithic method for the efficient simulation of incompressible flows 

    Ryzhakov, Pavel; Cotela Dalmau, Jordi; Rossi, Riccardo; Oñate Ibáñez de Navarra, Eugenio (2014-01)
    Article
    Accés restringit per política de l'editorial
    We propose a simple technique for improving computationally the efficiency of monolithic velocity–pressure solvers for incompressible flow problems. The idea consists in solving the discrete nonlinear system of governing ...
  • A two-tiered methodology for metamodel extension applied to UML 1.4 

    Franch Gutiérrez, Javier; Ribó, Josep M. (2004-11)
    Report de recerca
    Accés obert
    The usage of UML in specific contexts (like real-time systems or process modelling) is specially appealing since it provides a standard modelling notation widely used by the software engineering community. However, such ...
  • A Two-tiered methodology to extend the UML metamodel 

    Ribó, Josep M.; Franch Gutiérrez, Javier (2002-07-01)
    Report de recerca
    Accés obert
    The usage of UML in specific contexts (like real-time systems or process modelling) is specially appealing since it provides a standard modelling notation widely used by the software engineering community. However, suchusage ...
  • A type-theoretic approach to proof support for algebraic design frameworks 

    Mylonakis Pascual, Nicos (Universitat Politècnica de Catalunya, 2000-06-30)
    Tesi
    Accés obert
    A TYPE -THEORETIC APPROACH TO PROOF SUPPORT FOR ALGEBRAIC <br/> DESIGN FRAMEWORKS<br/><br/><br/> En el desarrollo formal de software, ...
  • A unified analytical model for characterization of cable faults in VSC DC systems 

    Mesas García, Juan José; Monjo Mur, Lluís; Sainz Sapera, Luis; Pedra Durán, Joaquim (2015)
    Text en actes de congrés
    Accés obert
  • A unified approach for measuring precision and generalization based on anti-alignments 

    Dongen, Boudewijn van; Carmona Vargas, Josep; Chatain, Thomas (Springer, 2016)
    Text en actes de congrés
    Accés obert
    The holy grail in process mining is an algorithm that, given an event log, produces fitting, precise, properly generalizing and simple process models. While there is consensus on the existence of solid metrics for fitness ...
  • A unified approach for the identification of SISO/MIMO Wiener and Hammerstein systems 

    Ikhouane, Fayçal; Giri, F. (2012)
    Comunicació de congrés
    Accés obert
    Hammerstein and Wiener models are nonlinear representations of systems composed by the coupling of a static nonlinearity N and a linear system L in the form N-L and L-N respectively. These models can represent real ...
  • A unified approach to authorship attribution and verification 

    Puig Oriol, Xavier; Font Valverde, Martí; Ginebra Molins, Josep (2016)
    Article
    Accés obert
    In authorship attribution, one assigns texts from an unknown author to either one of two or more candidate authors by comparing the disputed texts with texts known to have been written by the candidate authors. In authorship ...
  • A Unified approach to concurrent and parallel algorithms on balanced data structures 

    Gabarró Vallès, Joaquim; Messeguer Peypoch, Xavier (1997-07)
    Report de recerca
    Accés obert
    Concurrent and parallel algorithms are different. However, in the case of dictionaries, both kinds of algorithms share many common points. We present a unified approach emphasizing these points. It is based on a careful ...
  • A unified approach to explain contrary effects of hysteresis and smoothing in nonsmooth systems 

    Bonet Revés, Carles; Martínez-Seara Alonso, M. Teresa; Fossas Colet, Enric; Jeffrey, Mike R. (2017-09-01)
    Article
    Accés restringit per política de l'editorial
    Piecewise smooth dynamical systems make use of discontinuities to model switching between regions of smooth evolution. This introduces an ambiguity in prescribing dynamics at the discontinuity: should the dynamics be given ...
  • A Unified approach to natural language treatment 

    Alvarez Canal, Jordi (1998-02)
    Report de recerca
    Accés obert
    This paper proposes a learning-based methodology to deal with Natural Language. Our system tries to acquire a knowledge model from an analyzed text. After that, a new text can be analyzed by using that model. The methodology ...
  • A unified approach to remeshing strategies for finite element h-adaptativity 

    Díez, Pedro; Huerta, Antonio (1999-07)
    Article
    Accés obert
    In h-adaptivity, a remeshing strategy is needed to compute the distribution of required element size using the estimated error distribution. Several authors have introduced different remeshing strategies yielding very ...
  • A unified current loop tuning approach for grid-connected photovoltaic inverters 

    Zhang, Weiyi; Remón Rodríguez, Daniel; Mir Cantarellas, Antonio; Rodríguez Cortés, Pedro (2016-09-01)
    Article
    Accés obert
    High level penetration of renewable energy sources has reshaped modern electrical grids. For the future grid, distributed renewable power generation plants can be integrated in a larger scale. Control of grid-connected ...
  • A unified method for computing position and orientation workspaces of general Stewart platforms 

    Bohigas Nadal, Oriol; Ros, LLuís; Manubens Ferriol, Montserrat (2011)
    Text en actes de congrés
    Accés obert
    The workspace of a Stewart platform is a complex six- dimensional volume embedded in the Cartesian space defined b y six pose parameters. Because of its large dimension and com- plex shape, such workspace is difficult ...
  • A unified modulo scheduling and register allocation technique for clustered processors 

    Codina Viñas, Josep M.; Sánchez Navarro, F. Jesús; González Colás, Antonio María (Institute of Electrical and Electronics Engineers (IEEE), 2001)
    Text en actes de congrés
    Accés obert
    This work presents a modulo scheduling framework for clustered ILP processors that integrates the cluster assignment, instruction scheduling and register allocation steps in a single phase. This unified approach is more ...
  • A unified monolithic approach for multi-fluid flows and fluid-structure interaction using the Particle Finite Element Method with fixed mesh 

    Becker, Pablo Agustín; Idelsohn Barg, Sergio Rodolfo; Oñate Ibáñez de Navarra, Eugenio (2015-06)
    Article
    Accés obert
    This paper describes a strategy to solve multi-fluid and fluid-structure interaction (FSI) problems using Lagrangian particles combined with a fixed finite element (FE) mesh. Our approach is an extension of the fluid-only ...
  • A Unified Parameterization Scheme for Noisy Speech Recognition 

    Hernando Pericás, Francisco Javier; Nadeu Camprubí, Climent (ESCA, 1997)
    Text en actes de congrés
    Accés obert
    LP-based and mel-cepstrum coefficients are by far the most prevalent parameterization techniques in speech recognition. The conventional LP technique is known to be very sensitive to the presence of additive noise and there ...
  • A unified position analysis of the Dixon and the generalized Peaucellier linkages 

    Rojas Libreros, Nicolás Enrique; Dollar, Aaron M.; Thomas, Federico (2015-12-01)
    Article
    Accés obert
    This paper shows how, using elementary Distance Geometry, a closure polynomial of degree 8 for the Dixon linkage can be derived without any trigonometric substitution, variable elimination, or artifice to collapse mirror ...
  • A unified view of data-intensive flows in business intelligence systems : a survey 

    Jovanovic, Petar; Romero Moral, Óscar; Abelló Gamazo, Alberto (2016-12)
    Article
    Accés obert
    Data-intensive flows are central processes in today’s business intelligence (BI) systems, deploying different technologies to deliver data, from a multitude of data sources, in user-preferred and analysis-ready formats. ...