Ara es mostren els items 12781-12800 de 86136

  • Bounds and adaptivity for 3D limit analysis 

    Muñoz, José J.; Bonet Carbonell, Javier; Huerta, Antonio; Peraire Guitart, Jaume (2009-06-08T10:28:14Z)
    Text en actes de congrés
    Accés obert
    In the present paper we compute upper and lower bounds for limit analysis in two and three dimensions. From the solution of the discretised upper and lower bound problems, and from the optimum displacement rate and stress ...
  • Bounds for quantities of interest and adaptivity in the element-free Galerkin method 

    Vidal Seguí, Yolanda; Parés Mariné, Núria; Díez, Pedro; Huerta, Antonio (Wiley and Sons, 2008-07)
    Article
    Accés obert
    A novel approach to implicit residual-type error estimation in mesh-free methods and an adaptive refinement strategy are presented. This allows computing upper and lower bounds of the error in energy norm with the ultimate ...
  • Bounds for value at risk : the approach based on copulas with homogeneous tails 

    Jaworski, P. (Universitat Politècnica de Catalunya. Secció de Matemàtiques i Informàtica, 2008)
    Article
    Accés obert
    The theory of copulas provides a useful tool for modeling dependence in risk management. In insurance and nance, as well as in other applications, dependence of extreme events is particularly important, hence there is ...
  • Bounds of functional outputs for parabolic problems. Part I: Exact bounds of the discontinuous Galerkin time discretization 

    Parés Mariné, Núria; Díez, Pedro; Huerta, Antonio (2008-03)
    Article
    Accés obert
    Classical implicit residual type error estimators require using an underlying spatial finer mesh to compute bounds for some quantity of interest. Consequently, the bounds obtained are only guaranteed asymptotically that ...
  • Bounds of functional outputs for parabolic problems. Part II: Bounds of the exact solution 

    Parés Mariné, Núria; Díez, Pedro; Huerta, Antonio (2008-03)
    Article
    Accés obert
    The paper introduces a methodology to compute upper and lower bounds for linear-functional outputs of the exact solutions of parabolic problems. In this second part, the bounds account for the error both in space and time. ...
  • Bounds on the bisection width for random d-regular graphs 

    Díaz Cort, Josep; Serna Iglesias, María José; Wormald, Nick (2004-04)
    Report de recerca
    Accés obert
    In this paper we provide an explicit way to compute asymptotically almost sure upper bounds on the bisection width of random d-regular graphs, for any value of d. The upper bounds are obtained from the analysis of the ...
  • Bounds on the coefficients of tension and flow polynomials 

    Breuer, Felix; Dall, Aaron Matthew (2011-05)
    Article
    Accés restringit per política de l'editorial
    The goal of this article is to obtain bounds on the coefficients of modular and integral flow and tension polynomials of graphs. To this end we use the fact that these polynomials can be realized as Ehrhart polynomials of ...
  • Bounds on the first non-null eigenvalue for self-adjoint boundary value problems on networks 

    Bendito Pérez, Enrique; Carmona Mejías, Ángeles; Encinas Bachiller, Andrés Marcos; Gesto Beiroa, José Manuel (2006-09)
    Article
    Accés obert
    We aim here at obtaining bounds on the first non-null eigenvalue for self-adjoint boundary value problems on a weighted network by means of equilibrium measures, that includes the study of Dirichlet, Neumann and Mixed ...
  • Bounds on the max and min bisection of random cubic and 4-regular graphs 

    Díaz Cort, Josep; Do, Norman; Serna Iglesias, María José; Wormald, Nick (2002-12)
    Report de recerca
    Accés obert
    In this paper we present simple randomized algorithms to bisect cubic and 4-regular graphs. These algorithms produce bisections of size asymptotically at most 0.17404n for typical random cubic n-vertex graphs, and ...
  • Bounds on the possible evolution of the gravitational constant from cosmological type-Ia supernovae 

    Gaztañaga, E.; García-Berro Montilla, Enrique; Isern Vilaboy, Jordi; Bravo Guil, Eduardo; Domínguez, Inmaculada (2002-01)
    Article
    Accés obert
    Recent high-redshift type-Ia supernovae results can be used to set new bounds on a possible variation of the gravitational constant G. If the local value of G at the space-time location of distant supernovae is different, ...
  • Bounds on the size of super edge-magic graphs depending on the girth 

    Ichishima, Rikio; Muntaner Batle, Francesc Antoni; Rius Font, Miquel (2009-12-13)
    Report de recerca
    Accés obert
    Let G = (V,E) be a graph of order p and size q. It is known that if G is super edge-magic graph then q 2p−3. Furthermore, if G is super edge-magic and q = 2p−3, then the girth of G is 3. It is also known that if the ...
  • BoVDW: Bag-of-Visual-and-Depth-Words for gesture recognition 

    Hernandez Vela, Antonio; Bautista, Miguel Angel; Perez-Sala, Xavier; Ponce, Víctor; Baró, Xavier; Pujol, Oriol; Angulo Bahón, Cecilio; Escalera, Sergio (2012)
    Text en actes de congrés
    Accés restringit per política de l'editorial
    We present a Bag-of-Visual-and-Depth-Words (BoVDW) model for gesture recognition, an extension of the Bag-of-Visual-Words (BoVW) model, that benefits from the multimodal fusion of visual and depth features. State-of-the-art ...
  • Boving & Co. Ltd. : turbinas hidráulicas, reguladores automáticos & tuberías 

    Boving & Co. (Boving & Co, [19--])
    Llibre
    Accés obert
  • Bowtie microstrip patch antenna based on the Sierpinski fractal 

    Anguera Pros, Jaume; Puente Baliarda, Carles; Borja, C.; Montero, R. (Institute of Electrical and Electronics Engineers (IEEE), 2011)
    Text en actes de congrés
    Accés restringit per política de l'editorial
    The unique geometrical properties of fractals have been proven to be useful to design advanced antennas. Enhanced performance in terms of size, gain or multiband behaviour is observed in fractal-shaped antennas. Here, a ...
  • Bowtie models as preventive models in maritime safety 

    Vergés Guri, David (Universitat Politècnica de Catalunya, 2016)
    Treball Final de Grau
    Accés obert
    Realitzat a/amb: Latvijas Jūras akadēmija
  • Box approximations of planar linkage configuration spaces 

    Porta Pleite, Josep Maria; Ros Giralt, Lluís; Creemers, Tom Lambert; Thomas, Federico (ASME International, 2007)
    Article
    Accés obert
    This paper presents a numerical method able to compute all possible configurations of planar linkages. The procedure is applicable to rigid linkages (i.e., those that can only adopt a finite number of configurations) and ...
  • Box III-1: Comparing emissions from 9 European cities and their bus fleets 

    Roset Calzada, Jaime (Centre for Earth System Engineering Research, 2014-03)
    Capítol de llibre
    Accés obert
    The urgent need to reconfigure urban areas to consume fewer resources, generate less pollution, be more resilient to the impacts of extreme events and become more sustainable in general, is widely recognised. To address ...
  • Boxplot múltiple amb Minitab® 

    Forcada Plaza, Santiago (2008-02-01)
    Audiovisual
    Accés obert
  • Boxplot Simple amb Minitab® 

    Forcada Plaza, Santiago (2008-02-01)
    Audiovisual
    Accés obert
  • Br diffusion in molten NaBr explored by coherent quasielastic neutron scattering 

    Demmel, F; Alcaraz Sendra, Olga; Trullàs Simó, Joaquim (AMER PHYSICAL SOC, 2016-04-12)
    Article
    Accés obert
    Molten sodium bromide has been investigated by quasielastic neutron scattering focusing on the wave vector range around the first structure factor peak. The linewidth of the scattering function shows a narrowing around the ...