Exploració per títol

Ara es mostren els items 3849-3868 de 245683

    • A dust cleaning system for solar arrays on Mars using pressurized CO2 

      Arias Montenegro, Francisco Javier (2018-11-15)
      Article
      Accés restringit per política de l'editorial
      Obtaining CO2 from the Martian atmosphere through a freezing process has been proposed during de last decade as a means of obtaining high-pressure gas without having to use mechanical and sorption pumps -which, besides ...

    • A dynamic adaptation technique for the material point method 

      Ruggirello, K. P.; Schumacher, S. C. (CIMNE, 2013)
      Text en actes de congrés
      Accés obert
      The Lagrangian Material Point Method (MPM) [1, 2] has been implemented into the Eulerian shock physics code CTH[3], at Sandia National Laboratories. Since the MPM uses a background grid to calculate gradients, the method ...

    • A dynamic adaptive framework for improving case-based reasoning system performance 

      Orduña, Fernando (Universitat Politècnica de Catalunya, 2016-02-05)
      Tesi
      Accés obert
      An optimal performance of a Case-Based Reasoning (CBR) system means, the CBR system must be efficient both in time and in size, and must be optimally competent. The efficiency in time is closely related to an efficient and ...

    • A dynamic analysis of an integrated lower limb-orthosis model for interface contact pressures estimation 

      Ilzarbe Andrés, Amaia; Serrancolí, Gil; Font Llagunes, Josep Maria (2014)
      Text en actes de congrés
      Accés restringit per política de l'editorial

    • A dynamic estimation of passenger OD matrices based on space-state models 

      Montero Mercadé, Lídia; Codina Sancho, Esteve (2013)
      Text en actes de congrés
      Accés obert
      Dynamic OD passenger matrices must be taken into account when designing robust public transport systems. The adjustment of these matrices is examined using passenger counts provided by a space-state model formulation in a ...

    • A dynamic load balancing method for the evaluation of chemical reaction rates in parallel combustion simulations 

      Muela Castro, Jordi; Borrell Pol, Ricard; Ventosa Molina, Jordi; Jofre Roca, Lluís; Lehmkuhl Barba, Oriol; Pérez Segarra, Carlos David (Elsevier, 2019-08-15)
      Article
      Accés obert
      The development and assessment of an efficient parallelization method for the evaluation of reaction rates in combustion simulations is presented. Combustion simulations where the finite-rate chemistry model is employed ...

    • A dynamic model of the proteins that form the initial iron-sulfur cluster biogenesis machinery in yeast mitochondria 

      Amela Abellán, Isaac; Delicado Useros, Pedro Francisco; Gómez, Antonio; Querol Murillo, Enrique; Cedano, J (2013-03)
      Article
      Accés restringit per política de l'editorial
      The assembly of iron-sulfur clusters (ISCs) in eukaryotes involves the protein Frataxin. Deficits in this protein have been associated with iron inside the mitochondria and impair ISC biogenesis as it is postulated to act ...

    • A dynamic multimetric weights distribution in a multipath routing protocol using video-streaming services over MANETs 

      Mezher, Ahmad Mohamad; Iza, Cristhian; Tripp Barba, Carolina; Aguilar Igartua, Mónica (2015)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      Mobile ad hoc networks (MANETs) are infrastructureless networks formed by wireless mobile devices. Routing in MANETs is a process where the best path will be selected so that packets will be forwarded. When a MANET ...

    • A dynamic non-singleton fuzzy logic system for DS/CDMA communications 

      Pérez Neira, Ana Isabel; Sueiro, Jesús Cid; Roca, Josep; Lagunas Hernandez, Miguel A. (Institute of Electrical and Electronics Engineers (IEEE), 1998)
      Text en actes de congrés
      Accés obert
      We investigate a dynamic fuzzy logic system, specifically, its non-singleton generalization, and derive a novel adaptive fuzzy line enhancer that successfully solves the non-linear problem of narrowband interference (NBI) ...

    • A dynamic Parrondo's paradox for continuous seasonal systems 

      Cima Mollet, Anna; Gasull Embid, Armengol; Mañosa Fernández, Víctor (2020-10)
      Article
      Accés obert
      We show that planar continuous alternating systems, which can be used to model systems with seasonality, can exhibit a type of Parrondo’s dynamic paradox, in which the stability of an equilibrium, common to all seasons is ...

    • A dynamic Parrondo's paradox for continuous seasonal systems 

      Cima Mollet, Anna; Gasull Embid, Armengol; Mañosa Fernández, Víctor (2019-11-27)
      Report de recerca
      Accés obert
      We show that planar continuous alternating systems, which can be used to model systems with seasonality, can exhibit a type of Parrondo's dynamic paradox, in which the stability of an equilibrium, common to all seasons is ...

    • A dynamic periodicity detector: application to speedup computation 

      Freitag, Fèlix; Corbalán González, Julita; Labarta Mancho, Jesús José (IEEE, 2001-04)
      Text en actes de congrés
      Accés obert
      We propose a dynamic periodicity detector (DPD) for the estimation of periodicities in data series obtained from the execution of applications. We analyze the algorithm used by the periodicity detector and its performance ...

    • A dynamic pricing algorithm for a network of virtual resources 

      Naudts, Bram; Flores Méndez, Mario Rogelio; Mijumbi, Rashid; Verbrugge, Sofie; Serrat Fernández, Juan; Colle, Didier (Institute of Electrical and Electronics Engineers (IEEE), 2016)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      A service chain is a combination of network services (e.g. network address translation (NAT), a firewall, etc.) that are interconnected to support an application (e.g. video-on-demand). Building a service chain requires a ...

    • A dynamic programming based heuristic for the assembly line balancing problem 

      Bautista Valhondo, Joaquín; Pereira Gude, Jordi (Elsevier, 2009-05-01)
      Article
      Accés restringit per política de l'editorial
      The simple assembly line balancing problem is the simplification of a real problem associated to the assignment of the elementary tasks required for assembly of a product in an assembly line. This problem has been extensively ...

    • A dynamic recrystallization simulation based on phase-field and dislocation-crystal plasticity models 

      Muramatsu, Mayu; Sato, Shinichi; Aoyagui, Yoshiteru; Shizawa, Kazuyuki (CIMNE, 2011)
      Text en actes de congrés
      Accés obert
      In this paper, so as to reproduce the dynamic recrystallization, the dislocationcrystal plasticity model devotes to a deformation analysis and multi-phase-field one to nucleus growth calculation. First, we place a few ...

    • A dynamic scheduler for balancing HPC applications 

      Boneti, Carlos; Gioiosa, Roberto; Cazorla, Francisco; Valero Cortés, Mateo (Institute of Electrical and Electronics Engineers (IEEE), 2008)
      Text en actes de congrés
      Accés obert
      Load imbalance cause significant performance degradation in High Performance Computing applications. In our previous work we showed that load imbalance can be alleviated by modern MT processors that provide mechanisms for ...

    • A dynamic spring element model for the prediction of longitudinal failure of polymer composites 

      Tavares, Rodrigo Paiva; Otero Gruer, Fermín Enrique; Baiges Aznar, Joan; Turon Travesa, Albert; Camanho, Pedro P. (2019-04)
      Article
      Accés obert
      A spring element model that takes into account the dynamic effects associated with fibre failure in composite materials is presented. The model is implemented in a parallel environment to allow a better performance in the ...

    • A Dynamic Stochastic Model For Balance Sheet Optimization 

      Barnils Sanchez, Armand (Universitat Politècnica de Catalunya / Illinois Institute of Technology, 2013)
      Treball Final de Grau
      Accés restringit per decisió de l'autor
      Realitzat a/amb:   Illinois Institute of Technology

    • A dynamic system model for Catalan airports 

      Casanova Sala, Ferran (Universitat Politècnica de Catalunya, 2019-10)
      Projecte Final de Màster Oficial
      Accés obert
      The main objective is to analyze if Catalan airports can be understood as a whole system. In the airport field, this is known as multiairport system and it is definitively a complex dynamic system. BCN is grown at more ...

    • A Dynamic Validation Infrastructure for Interoperable Grid Services 

      Luna García, Jesús (Universitat Politècnica de Catalunya, 2008-05-05)
      Tesi
      Accés obert
      Los encargados de recursos Grid pueden autorizar el acceso a sus elementos de cómputo por medio de procedimientos bien establecidos para los clientes, regularmente a través del uso de credenciales criptográficas que en su ...