Now showing items 64321-64340 of 117010

  • La globalización de la Información Geográfica 

    Rodríguez Pascual, Antonio F.; Abad Power, Paloma; Alonso Jiménez, José Ángel; Sánchez Maganto, Alejandra (2009-02)
    Article
    Open Access
    La aparición en la Red de Google Earth, otras aplicaciones similares, las Infraestructuras de Datos Espaciales basadas en estándares y la neocartografía, o cartografía colaborativa, ofrece enormes posibilidades para completar ...
  • La gobernanza de la acreditación 

    Singh, Mala (Mundiprensa, 2007)
    Article
    Open Access
    El artículo explora temas relacionados con la gobernanza de la acreditación en relación con el incremento en la demanda de garantía de calidad (GC) por parte de los diferentes grupos de interés y la acreditación se ha ...
  • La gran calabaza 

    Barceló Garcia, Miquel (2015-12)
    Article
    Open Access
  • La gran escala 

    González Raventos, Aquiles (2003-06-01)
    Article
    Open Access
  • La gran esperanza final 

    Barceló Garcia, Miquel (1999-12)
    Article
    Open Access
  • Lagrangean bounds for the optimum communication spanning tree problem 

    Contreras, I.; Fernández Aréizaga, Elena; Marín, Alfredo (Springer Verlag, 2010)
    Article
    Restricted access - publisher's policy
    This paper considers the Optimum Communication Spanning Tree Problem. An integer programming formulation that yields tight LP bounds is proposed. Given that the computational effort required to obtain the LP bounds ...
  • Lagrangean Duals and Exact Solution to the Capacitated p-Center Problem 

    Albareda Sambola, Maria; Díaz, Juan A.; Fernández Aréizaga, Elena (2006-06-12)
    Article
    Open Access
    In this work we study the Capacitated p-Center Problem (CpCP) and we propose an exact algorithm to solve it. We study two auxiliary problems and their relation to CpCP, and we propose two different Lagrangean duals based ...
  • Lagrange multipliers estimates for constrained minimization 

    Escudero, L. F. (Universitat Politècnica de Barcelona. Centre de Càlcul, 1981-09)
    Article
    Open Access
    We discuss in this work the first-order, second-order and pseudo-second-order estimations of Lagrange multipliers in nonlinear constrained minimization. The paper also justifies estimations and strategies that are used by ...
  • Lagrange y la primera formulación de la mecánica analítica 

    Navarro, Luis (2014-03-12)
    Audiovisual
    Open Access
  • Lagrangian coherent structures 

    Ros Roca, Xavier (Universitat Politècnica de Catalunya, 2015-05)
    Bachelor thesis
    Open Access
    Real-life mechanical systems can usually be modeled as non-linear, non-periodic and non-autonomous dynamical systems. It is very important to have different tools to study these systems, and there are many classical ...
  • Lagrangian finite element model for the 3D simulation of glass forming processes 

    Ryzhakov, Pavel; García Espinosa, Julio; Oñate Ibáñez de Navarra, Eugenio (2016-12)
    Article
    Open Access
    We propose here a numerical model for a three-dimensional simulation of glass forming processes. Using the basic philosophy of the Particle Finite Element method (PFEM), we introduce several new features adapting the ...
  • Lagrangian-Hamiltonian unified formalism for autonomous higher order dynamical systems 

    Prieto Martínez, Pedro Daniel; Román Roy, Narciso (2011-09-23)
    Article
    Restricted access - confidentiality agreement
    The Lagrangian-Hamiltonian unified formalism of R. Skinner and R. Rusk was originally stated for autonomous dynamical systems in classical mechanics. It has been generalized for non-autonomous first-order mechanical ...
  • Lagrangian-Hamiltonian unified formalism for autonomous higher-order dynamical systems 

    Prieto Martínez, Pedro Daniel; Román Roy, Narciso (2011-07-18)
    External research report
    Restricted access - confidentiality agreement
    Research paper
  • Lagrangian Lie subalgebroids of the canonical symplectic Lie algebroid 

    Aymerich Valls, Mónica (Universitat Politècnica de Catalunya, 2011-02)
    Master thesis
    Open Access
    It is well-known that the Poisson reduction of a hamiltonian system on the cotangent bundle of a manifold produces a hamiltonian system on a linear Poisson manifold. On the other hand, linear Poisson structures on a vector ...
  • Lagrangian modeling of reactive transport in heterogeneous porous media with an automatic locally adaptive particle support volume 

    Solé Marí, Guillem; Fernández García, Daniel (2018-10)
    Article
    Open Access
    The particle support volume is crucial for simulating reactive transport with Lagrangian methods as it dictates the interaction among particles. Assuming that it is constant in space, the particle support volume can be ...
  • Lagrangian simulation of suspended sediment in the swash zone 

    Alsina Torrent, José María; Cáceres Rabionet, Iván; Sospedra Iglesias, Joaquim; Baldock, Tom E. (2009-01-01)
    Article
    Restricted access - publisher's policy
    A numerical model is presented to simulate the sediment transport and beach morphology in the swash zone. The model resolves the non-linear shallow water equations in an Eulerian framework and then solves the advection-diffusion ...
  • Lagrangian versus Eulerian integration errors 

    Idelsohn Barg, Sergio Rodolfo; Oñate Ibáñez de Navarra, Eugenio; Nigro, Norberto; Becker, Pablo Agustín; Gimenez, Juan Marcelo (2015-08)
    Article
    Open Access
    The possibility to use a Lagrangian frame to solve problems with large time-steps was successfully explored previously by the authors for the solution of homogeneous incompressible fluids and also for solving multi-fluid ...
  • La Granja Escalator, Toledo, Spain 1997-2000 

    Martínez Lapeña, José Antonio; Torres Tur, Elías (2001-04)
    Article
    Restricted access - publisher's policy
  • La Granja : escales = escaliers 

    Martínez Lapeña, José Antonio; Torres Tur, Elías (2001-05)
    Article
    Open Access
  • La gran lluita contra el mar (història del cable trasatlàntic) 

    Fabregas Canovas, Francisco Javier; Torres Torres, Francisco; Romeu Robert, Jordi (2014-02-12)
    External research report
    Open Access