Now showing items 1965-1984 of 72434

  • A New learning experience: voluntary preparatory course for the bachelor’s degree in engineering 

    Botey, Muriel; Alcaraz, Olga (Universitat Politècnica de Catalunya. Institut de Ciències de l'Educació, 2012-03)
    Article
    Open Access
    This paper reports on a new experience carried out at school associated with the Technical University of Catalonia, Universitat Politècnica de Catalunya (UPC) in September 2010. The aim is to describe the organization, ...
  • A new least-squares approximation of affine mappings for sweep algorithms 

    Roca Navarro, Francisco Javier; Sarrate Ramos, Josep; Huerta, Antonio (2010-06)
    Article
    Open Access
    This paper presents a new algorithm to generate hexahedral meshes in extrusion geometries. Several algorithms have been devised to generate hexahedral meshes by projecting the cap surfaces along a sweep path. In all of ...
  • A new lossless orthogonal simplification method for 3D objects based on bounding structures 

    Cruz Matías, Irving Alberto; Ayala Vallespí, M. Dolors (2014-07)
    Article
    Restricted access - publisher's policy
    This paper presents a new approach to simplify 3D binary images and general orthogonal pseudo-polyhedra (OPP). The method is incremental and produces a level-of-detail sequence of OPP, where any object of this sequence ...
  • A new MAC approach in wireless body sensor networks for health care 

    Otal Ruiz, Begoña; Alonso Zárate, Luis Gonzaga; Verikoukis, Christos (INTECH, 2011-02)
    Part of book or chapter of book
    Open Access
  • A new medium access protocol based on distributed queues for a CDMA environment 

    Alonso Zárate, Luis Gonzaga; Agustí Comes, Ramon; Sallent Roig, José Oriol (Institute of Electrical and Electronics Engineers (IEEE), 1999)
    Conference report
    Restricted access - publisher's policy
    This paper presents and analyses a new stable near-optimum random access protocol. The proposed access scheme is adapted for being used in a CDMA environment. It is based on distributed queues and a collision resolution ...
  • A new method for sea wave detection by using a speed log meter 

    Recolons Martos, Jaume; Torrents Dolz, Josep M. (2011)
    Conference report
    Restricted access - publisher's policy
    We present two different methods for measuring waves from the information provided by the speed log meter onboard. The first method processes data in the time domain, and is based in the measurement of the standard deviation ...
  • A new method for the acquisition of arterial pulse wave using self-mixing interferometry 

    Arasanz Tena, Andrés; Azcona Guerrero, Francisco Javier; Royo Royo, Santiago; Jha, Ajit; Pladellorens Mallofré, Josep (2014-11-01)
    Article
    Open Access
    In this paper we present a technique based on self-mixing interferometry as a method for the acquisition and reconstruction of the arterial pulse wave. A modification of the classic fringe counting reconstruction algorithm ...
  • A new method to improve the total efficiency of parallel converters 

    Hoff Dupont, Fabrício; Zaragoza Bertomeu, Jordi; Rech, Cassiano; Pinheiro, José Renes (2013)
    Conference report
    Open Access
    This paper proposes a new methodology for efficiency optimization in systems composed by parallel converters. The proposed methodology takes into account the individual efficiency curves and determines the optimum ...
  • A new method to obtain information about the pore size distribution in microporous polymeric membranes 

    Llorens, Joan; Marco, P.; Sabaté Reboll, José; Pujolà Cunill, Montserrat; Felip, I; Plumed, E (2008-03)
    Article
    Restricted access - publisher's policy
    Transport measurements of selected fluids through porous membranes provide information on precise statistical moments of the membrane pore-size distribution (PSD). It is assumed that membrane porosity, ~T,is distributed ...
  • A new methodology to identify supply chains sustainability bottlenecks 

    Pereda Pons, Eduardo (Universitat Politècnica de CatalunyaInstituto Superior Técnico, 2015)
    Bachelor thesis
    Open Access
    The world globalization has been creating a very strong competition amongst companies. To maintain their market position, companies need to guarantee that all their activities are performed with high efficacy and efficiency ...
  • A new methodology to identify supply chains sustainability bottlenecks 

    Pereda Pons, Eduardo (Universitat Politècnica de CatalunyaInstituto Superior Técnico, 2015)
    Bachelor thesis
    Open Access
    The world globalization has been creating a very strong competition amongst companies. To maintain their market position, companies need to guarantee that all their activities are performed with high efficacy and efficiency ...
  • 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
    Open Access
    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 modelling approach for unsaturated soils using independent stress variables 

    Sheng, Daichao; Fredlund, Delwyn G.; Gens Solé, Antonio (2008-04)
    Article
    Restricted access - publisher's policy
    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 MPPT method for low-power solar energy harvesting 

    López Lapeña, Oscar; Penella López, María Teresa; Gasulla Forner, Manuel (2010-09)
    Article
    Open Access
    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
    Restricted access - publisher's policy
    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 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)
    Conference report
    Open Access
  • 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
    Restricted access - publisher's policy
    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 optimal electricity market bid model solved through perspective cuts 

    Corchero García, Cristina; Mijangos Fernández, Eugenio; Heredia, F.-Javier (Francisco Javier) (Springer, 2011-11)
    Article
    Restricted access - publisher's policy
    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
    Restricted access - publisher's policy
    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 Parametric Regenerator Allocation Scheme taking into account Inaccurate Physical Information 

    Marín Tordera, Eva; Yannuzzi, Marcelo; Serral Gracià, René; Masip Bruin, Xavier; Sánchez López, Sergio (2010-06-08)
    Conference report
    Open Access
    Regenerator allocation consists on selecting which of the already installed regenerators in a translucent network may be used according to the dynamic traffic requests in order to maximize the quality of the optical ...