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Ara es mostren els items 5542-5561 de 245593

    • A new model for supply chain network design with integrated assembly line balancing decisions 

      Pereira Gude, Jordi; Vilà Bonilla, Mariona (Taylor & Francis, 2015-11-26)
      Article
      Accés obert
      Supply chain network design aims at the integration of the different actors of a supply chain within a single framework in order to optimise the total profit of the system. In this paper, we consider the integration of ...

    • A new model of Port Safety Management: The analysis and risk management based on the Formal Safety Assessment (FSA) 

      Rodrigo de Larrucea, Jaime (Universidad de Cantabria, 2017-06-06)
      Article
      Accés obert
      The present study aims to create a new model of port safety management in our country based on the analysis and assessment of the risk with the Formal Safety Assessment methodology to make it a first level instrument in ...

    • A new model to analyze corrugated steel web bridges 

      Lei, Jun; Xu, Dong; Turmo Coderque, José (Tongji University, 2017)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      The wide application of corrugated steel web bridges has led to a rising demand on accurate tools to analyze this type of structures. Current computational models for these analyses are mainly related to those models using ...

    • A new modelling approach for unsaturated soils using independent stress variables 

      Sheng, Daichao; Fredlund, Delwyn G.; Gens Solé, Antonio (2008-04)
      Article
      Accés restringit per política de l'editorial
      Although a number of constitutive models for unsaturated soils exist in the literature, some fundamental questions have not been fully answered. There are questions related to (i) the change of the yield stress with soil ...

    • A new morphodynamic instability associated with cross-shore transport in the nearshore 

      Falqués Serra, Albert; Ribas Prats, Francesca; Mujal Colilles, Anna; Puig i Polo, Càrol (2021-07-16)
      Article
      Accés obert
      The existing theory for shore-transverse rhythmic sand bars relies on morphodynamic instabilities involving the wave-driven longshore current and rip currents. Intriguingly, transverse finger bars are common on coasts with ...

    • A new MPPT method for low-power solar energy harvesting 

      López Lapeña, Oscar; Penella López, María Teresa; Gasulla Forner, Manuel (2010-09)
      Article
      Accés obert
      This paper describes a new maximum-power-pointtracking (MPPT) method focused on low-power (< 1 W) photovoltaic (PV) panels. The static and dynamic performance is theoretically analyzed, and design criteria are provided. ...

    • A new multi-criteria optimization strategy for shared control in wheelchair assisted navigation 

      Sandoval, Francisco; Caltagirone, Carlo; Annicchiarico, Roberta; Cortés García, Claudio Ulises; Urdiales García, Cristina; Peula, José Ma.; Fernández-Carmona, Manuel; Barrué Subirana, Cristian; Pérez, Eduardo J.; Sánchez-Tato, Isabel; del Toro, J.C.; Galluppi, F. (2011-02-01)
      Article
      Accés restringit per política de l'editorial
      In todays aging society, many people require mobility assistance, that can be provided by robotized assistive wheelchairs with a certain degree of autonomy when manual control is unfeasible due to disability. Robot ...

    • A new multicast opportunistic routing protocol for wireless mesh networks 

      Darehshoorzadeh, Amir; Cerdà Alabern, Llorenç (Springer, 2011)
      Text en actes de congrés
      Accés obert
      Opportunistic Routing (OR) has been proposed to improve the efficiency of unicast protocols in wireless networks. In contrast to traditional routing, instead of preselecting a single specific node to be the next-hop ...

    • A new multiscale model for methane flow in shale gas reservoirs including adsorption in organic nanopores and on clay surfaces 

      Dung Le, Tien; Murad, Marcio A. (Universitat Politècnica de Catalunya. Departament d'Enginyeria del Terreny, Cartogràfica i Geofísica, 2015-06-02)
      Text en actes de congrés
      Accés obert

    • A new multisymplectic unified formalism for second order classical field theories 

      Prieto Martínez, Pedro Daniel; Román Roy, Narciso (American Institute of Mathematical Sciences, 2015-06-01)
      Article
      Accés obert
      We present a new multisymplectic framework for second-order classical field theories which is based on an extension of the unified LagrangianHamiltonian formalism to these kinds of systems. This model provides a straightforward ...

    • A new NMVOC speciated inventory for a reactivity-based approach to support ozone control strategies in Spain 

      Oliveira, Kevin de; Guevara Vilardell, Marc; Jorba Casellas, Oriol; Querol Carceller, Xavier; Pérez García-Pando, Carlos (Elsevier, 2023-04-01)
      Article
      Accés obert
      Ozone (O3) pollution is a persistent problem in many regions of Spain, so understanding O3 precursor emissions and trends is essential to design effective control strategies. We estimated the impact of Non-Methane Volatile ...

    • A new non-linear system for estimating and suppressing narrowband interference in PN spread spectrum modulation 

      Pérez Neira, Ana Isabel; Lagunas Hernandez, Miguel A. (1998)
      Text en actes de congrés
      Accés obert
      This work develops a novel dynamic fuzzy logic system that, based on a fuzzy basis function expansion, successfully solves the non-linear problem of narrowband interference prediction and rejection in DS-SS. A fuzzy basis ...

    • A new nonlinear compliant mechanism for harvesting energy from ocean waves 

      Liang, Haitong; Carandell Widmer, Matias; Olszewski, Oskar Z.; Hao, Guangbo (Institute of Electrical and Electronics Engineers (IEEE), 2022)
      Comunicació de congrés
      Accés obert
      Traditonal linear oscillators, such as cantilevers or pendulums, are only sensitive to specific resonant frequencies. They have then very narrow frequency bandwidths when harvesting energy from ocean waves. In order to ...

    • A new nonlinear observer for liquid water estimation in fuel cells 

      Cecilia Piñol, Andreu; Astolfi, Daniele; Costa Castelló, Ramon (Institute of Electrical and Electronics Engineers (IEEE), 2023-12-06)
      Article
      Accés restringit per política de l'editorial
      Fuel cells are electrochemical devices with some internal variables that cannot be measured, but have to be monitored in real-time. That is the case for the liquid water inside the fuel cell catalyst layer. This motivates ...

    • A new numerical method for solving the acoustic radiation problem 

      Poblet-Puig, Jordi; Shanin, Andrey (2018-03)
      Article
      Accés obert
      A numerical method of solving the problem of acoustic wave radiation in the presence of a rigid scatterer is described. It combines the finite element method and the boundary algebraic equation one. In the proposed method, ...

    • A new numerical scheme for a linear fluid–structure interaction problem 

      González, María; Selgas, Virginia (CIMNE, 2011)
      Text en actes de congrés
      Accés obert
      We consider a linear fluid–structure interaction problem consisting of the time-dependent Stokes equations coupled with those of linear elastodynamics. We assume that the fluid and the solid interact through a fixed ...

    • A new open source solver for modelling fluid-structure interaction: case study of a point-absorberwave energy converter with power take-off unit 

      Tagliafierro, Bonaventura; Montuori, Rosario; Vayas, Ioannis; Ropero, Pablo; Crespo, Alejandro J.C.; Domínguez Alonso, José Manuel; Altomare, Corrado; Viccione, Giacomo; Gómez Gesteira, Moncho (National Technical University of Athens, 2020)
      Text en actes de congrés
      Accés obert
      In this work, the capabilities of the open source code DualSPHysics coupled with the multiphysics library Project Chrono are shown. The framework is validated through an experimental campaign performed on a wave energy ...

    • A new optimal electricity market bid model solved through perspective cuts 

      Corchero García, Cristina; Mijangos Fernández, Eugenio; Heredia, F.-Javier (Francisco Javier) (Springer, 2013-04)
      Article
      Accés obert
      On current electricity markets the electrical utilities are faced with very sophisticated decision making problems under uncertainty. Moreover, when focusing in the short-term management, generation companies must include ...

    • A new otolith image contour descriptor based on partial reflection 

      Reig Bolano, Ramon; Marti Puig, Pere; Lombarte, A.; Soria Pérez, José Antonio; Parisi Baradad, Vicenç (2010-12)
      Article
      Accés restringit per política de l'editorial
      In this paper we propose a new contour descriptor for reconstructing fish otolith contours that uses half the number of coefficients needed by the classical elliptical Fourier descriptors (EFDs) for the same accuracy. ...

    • A new paradigm for molecular dynamics databases: the COVID-19 database, the legacy of a titanic community effort 

      Beltran, Daniel; Hospital, Adam; Gelpi, Josep; Orozco, Modesto (Oxford University Press, 2023-11)
      Article
      Accés obert
      Abstract Molecular dynamics (MD) simulations are keeping computers busy around the world, generating a huge amount of data that is typically not open to the scientific community. Pioneering efforts to ensure the safety ...