Ara es mostren els items 1693-1712 de 86182

  • A Feasibility Study of the Suitability of an AD5933-based Spectrometer for EBI Applications 

    Ansede Pena, Antonio (Universitat Politècnica de Catalunya, 2009)
    Projecte/Treball Final de Carrera
    Accés obert
    Electrical Bioimpedance (EBI) measurements have proven their validity in several medical applications like body composition analysis and detection of melanoma among others. The successful application of EBI technology on ...
  • A feature-based subband coding scheme 

    Casas Pla, Josep Ramon; Torres Urgell, Lluís (Institute of Electrical and Electronics Engineers (IEEE), 1996)
    Text en actes de congrés
    Accés restringit per política de l'editorial
    A feature-based subband coding scheme is presented. It is intended for the coding of the texture component of a two-component image model. The primary component contains the strong edges, individually described by their ...
  • A feedback-based hybrid OBS/OCS architecture with fast-over-slow capability 

    Khodashenas, Pooria Saiyad; Perelló Muntan, Jordi; Spadaro, Salvatore; Comellas Colomé, Jaume; Junyent Giralt, Gabriel (2011)
    Comunicació de congrés
    Accés obert
    Dynamic bandwidth allocation in response to the bandwidth requirements of new emerging applications is an essential demand for future optical networks. Hybrid switching architectures combining the benefits of different ...
  • A feedback-based L-2-norm limiter for periodic signals 

    Griñó Cubero, Robert; Ortega, Romeo; Fossas Colet, Enric (2011-01)
    Article
    Accés restringit per política de l'editorial
    Limiting the rms value (L2 norm) of periodic signals can be a necessity in some controllers for power electronic devices. The prevailing existing solution is simply to compute, off-line, the L2 norm and then to multiply ...
  • A FEM fluid-structure interaction algorithm for analysis of the seal dynamics of a Surface-Effect Ship 

    García Espinosa, Julio; Capua, Daniel di; Serván Camas, Borja; Ubach Fuentes, Pere-Andreu; Oñate Ibáñez de Navarra, Eugenio (2015-10-01)
    Article
    Accés obert
    This paper shows the recent work of the authors in the development of a time-domain FEM model for evaluation of the seal dynamics of a surface effect ship. The fluid solver developed for this purpose, uses a potential flow ...
  • A FEM-DEM technique for studying the motion of particles in non-Newtonian fluids: application to the transport of drill cuttings in wellbores 

    Celigueta Jordana, Miguel Ángel; Deshpande, Kedar M.; Latorre, Salvador; Oñate Ibáñez de Navarra, Eugenio (Springer, 2015-11)
    Article
    Accés restringit per política de l'editorial
    We present a procedure for coupling the finite element method (FEM) and the discrete element method (DEM) for analysis of the motion of particles in non-Newtonian fluids. Particles are assumed to be spherical and immersed ...
  • A few academic approaches to problems in tissue culture propagation 

    Debergh, P. (Escola Superior d'Agricultura de Barcelona, 1985)
    Article
    Accés obert
  • A Fibonacci sequence for linear structures with two types of components 

    Freixas Bosch, Josep; Molinero Albareda, Xavier; Roura Ferret, Salvador (2009-07-23)
    Report de recerca
    Accés obert
    We investigate binary voting systems with two types of voters and a hierarchy among the members in each type, so that members in one class have more influence or importance than members in the other class. The purpose ...
  • A FIC-based stabilized mixed finite element method with equal order interpolation for solid–pore fluid interaction problems 

    Pouplana Sarda, Ignasi de; Oñate Ibáñez de Navarra, Eugenio (2017-01)
    Article
    Accés restringit per política de l'editorial
    A new mixed displacement-pressure element for solving solid–pore fluid interaction problems is presented. In the resulting coupled system of equations, the balance of momentum equation remains unaltered, while the mass ...
  • A field investigation of flight anxiety: evidence of gender differences in consumer behaviors among Las Vegas passengers 

    Harvell, Lindsey A.; Stillman, Tyler; Nisbett, Gwendelyn S.; Cranney, Kyle; Schow, Amber (Omnia Science, 2016-06)
    Article
    Accés obert
    Purpose: This study examines how anxious the Las Vegas public is through a case study of one local international airport. Design/methodology: This study examines gender differences in consumer behaviors among the flying ...
  • A field study on satellite and cellular 

    Gete-Alonso Roldan, Oscar; Martín Escalona, Israel; Barceló Arroyo, Francisco (IEEE Press. Institute of Electrical and Electronics Engineers, 2010)
    Text en actes de congrés
    Accés restringit per política de l'editorial
    This article presents a statistical study on the availability of location sources. In particular, it rates the availability of cellular network base stations and GPS satellites in urban scenarios. Individual and joint ...
  • A field study on the fusion of terrestrial and satellite location methods in urban cellular networks 

    Barceló Arroyo, Francisco; Martín Escalona, Israel; Manente, Cyrille (2010-05-01)
    Article
    Accés restringit per política de l'editorial
    This work studies the improvement in service coverage obtained by three different approaches to combining two triangulation (terrestrial and satellite) location methods for cellular networks in an urban environment. The ...
  • A field study with primary school children on perception of social presence and interactive behavior with a pet robot 

    Heerink, Marcel; Díaz Boladeras, Marta; Albo-Canals, Jordi; Angulo Bahón, Cecilio; Barco, Alex; Casacuberta Bagó, Judit; Garriga Berga, Carles (2012)
    Comunicació de congrés
    Accés obert
    This paper presents a study on measuring (1) how children experience a pet robot, (2) how they play with it and (3) how children’s perceptions on and interaction with pet robots are interrelated. The study features different ...
  • A field test of a linear stability model for crescentic bars 

    Tiessen, M.C.H.; Leeuwen, S.M.Van; Calvete Manrique, Daniel; Dodd, Nicholas (2010-01)
    Article
    Accés restringit per política de l'editorial
    A morphodynamical linear stability analysis is used to predict the natural development of crescentic bed patterns and rip channels. The purpose is to investigate whether this technique, which is useful for understanding ...
  • A figure-of-merit for pattern reconfigurable antennas 

    Rodrigo López, Daniel; Romeu Robert, Jordi; Capdevila Cascante, Santiago; Jofre Roca, Lluís (2013-03)
    Article
    Accés restringit per política de l'editorial
    The performance of pattern reconfigurable antennas is evaluated with the purpose of deriving a figure-of-merit for pattern reconfigurability. A general formulation is provided for the average gain achieved by a ...
  • A filtered kinetic energy preserving finite volumes scheme for compressible flows 

    Baez Vidal, Aleix; Lehmkuhl Barba, Oriol; Pérez Segarra, Carlos David; Oliva Llena, Asensio (2012)
    Text en actes de congrés
    Accés obert
    The Kinetic Energy Preserving Scheme (KEP) for compressible flows has been shown to solve 1-D shock waves without smearing them. The method does not add numerical diffusion to solutions but, as a counterpart, it needs ...
  • A filtering engine for large conceptual schemas 

    Villegas Niño, Antonio (Universitat Politècnica de Catalunya, 2013-01-29)
    Tesi
    Accés obert
  • A finite deformation membrane based on inter-atomic potentials for the transverse mechanics of nanotubes 

    Arroyo Balaguer, Marino; Belytschko, T. (2003-03)
    Article
    Accés obert
    A finite deformation hyper-elastic membrane theory based on inter-atomic potentials for crystalline films composed of a single atomic layer is developed. For this purpose, an extension of the standard Born rule that exploits ...
  • A finite difference based tool for analysing ground source heat pump system 

    Bag, Ramakrishna; Sedighi, Majid; Manju; Rhys Thomas, Hywel (Universitat Politècnica de Catalunya. Departament d'Enginyeria del Terreny, Cartogràfica i Geofísica, 2015-06-02)
    Text en actes de congrés
    Accés obert
    The ground heat exchangers (GHE) consist of pipes buried in the soil and are used for transferring heat between the soil and the heat exchanger pipes of the ground source heat pump (GSHP). This paper presents the development ...
  • A finite element approach to the simulation of hydraulic fractures with lag 

    Hunsweck, Michael J.; Shen, Yongxing; Lew, Adrian J. (2013)
    Article
    Accés obert
    We presented a finite-element-based algorithm to simulate plane-strain, straight hydraulic fractures in an impermeable elastic medium. The algorithm acCOllllts for the nonlinear coupling between the fluid pressure and the ...