Now showing items 1-20 of 31

  • A faster algorithm to compute the visibility map of a 1.5D terrain 

    Löffler, Maarten; Saumell, Maria; Silveira, Rodrigo Ignacio (2014)
    Conference report
    Open Access
    Given a 1.5D terrain, i.e., an x -monotone polygonal line in R 2 with n vertices, and 1 m n viewpoints placed on some of the terrain vertices, we study the problem of computing the parts of the terrain that are visible ...
  • A finite element strategy coupling a gradient-enhanced damage model and cohesive cracks for quasi-brittle materials 

    Tamayo Mas, Elena; Rodríguez Ferran, Antonio (2013)
    Conference report
    Restricted access - publisher's policy
    A new combined strategy to describe failure of quasi-brittle materials is presented thus allowing the complete description of the process, from initiation of damage to crack propagation. For the early stages of the process, ...
  • A note on upper bound formulations in limit analysis 

    Muñoz Romero, José; Huerta, Antonio; Bonet Carbonell, Javier; Peraire, Jaume (John Wiley & Sons, 2012-08-24)
    Article
    Restricted access - publisher's policy
    In this paper we study some recent formulations for the computation of upper bounds in limit analysis. We show that a previous formulation presented by the authors does not guarantee the strictness of the upper bound, ...
  • A numerical technique for obtaining SEA coupling loss factors in double walls 

    Díaz Cereceda, Cristina; Poblet-Puig, Jordi; Rodríguez Ferran, Antonio (2012)
    Conference report
    Open Access
    Double walls usually consist of two leaves of material connected by steel studs. Aside from improving the structural performance, studs create a vibration transmission path which connects the two leaves. There is interest ...
  • A simulation study regarding different aircraft boarding strategies 

    Mas, Sílvia; Juan Pérez, Angel Alejandro; Arias, Pol; Fonseca Casas, Pau (Springer, 2013-06-07)
    Part of book or chapter of book
    Open Access
    The airline industry is constantly subject to the search of new methods in order to increase efficiency, profitability, and customer satisfaction. Since airlines only generate revenue when their airplanes are on the air, ...
  • An SEA-like model for double walls filled with absorbing materials 

    Díaz Cereceda, Cristina; Poblet-Puig, Jordi; Rodríguez Ferran, Antonio (2012)
    Conference report
    Open Access
    Modelling absorbing materials with statistical energy analysis (SEA) is an open issue. They are neither reverberant subsystems nor conservative couplings. The absorbing material layers located inside the cavities of ...
  • Challenges for time and frequency domain aeroacoustic solvers 

    Angeloski, Aleksandar; Discacciati, Marco; Legendre, César; Lielens, Gregori; Huerta, Antonio (2014)
    Conference report
    Open Access
    The linearized Euler equations (LEE) model acoustic propagation in the presence of rotational mean flows. They can be solved in time [1–3] or in frequency [4–6] domain, with both approaches having advantages and disadvantages. ...
  • Combined and I indices based on principal component analysis for damage detection and localization 

    Tibaduiza Burgos, Diego Alexander; Mujica Delgado, Luis Eduardo; Rodellar Benedé, José (2011)
    Conference report
    Open Access
    In this paper, two indices (combined or phi index and I index), different to the presented in [1][2][3] are used to detect damages; these indices are calculated from the information obtained from the projection of the ...
  • Computational vademecums for a fast and reliable simulation of RTM processes 

    Abisset Chavanne, Emmanuelle; Cueto Prendes, Elias; Huerta, Antonio; Chinesta, Francisco (Universidad de Sevilla. Grupo de Elasticidad y Resistencia de Materiales, 2014)
    Conference report
    Open Access
    Proper Generalized Decomposition methods allow to obtain an efficient solution for multi-parametric problems without the need for simulating numerous problems to obtain a response surface. Instead, PGD obtains a priori a ...
  • Definition of virtual reality simulation models using specification and description language diagrams 

    Fonseca Casas, Pau; Pi Palomés, Xavier; Casanovas Garcia, Josep; Jové, Jordi (Springer, 2013-06-26)
    Part of book or chapter of book
    Restricted access - publisher's policy
    A full representation of a simulation model encompasses the behavior of the elements that define the model, the definition of the probability distributions that define the delays of the events that control the model, ...
  • «Enfoque ráster» del problema hidrodinámico del flujo en lámina libre en 2D. 

    Soler Guitart, Joan; Bladé i Castellet, Ernest; Bofill Abello, Jordi; Gómez, Manuel (2011)
    Conference report
    Open Access
    Los Sistemas de Información Geográfica (SIG) trabajan con información del territorio en dos formatos: formato ráster y formato vectorial. En las plataformas de SIG existen algoritmos independientes para el tratamiento de ...
  • Experiences of simulation use in industrial projects 

    Fonseca Casas, Pau; Casanovas Garcia, Josep; Montero García, Jordi; Guasch Petit, Antonio (2011-07-01)
    Article
    Open Access
    This paper presents experiences obtained from our involvement in the development of industrial simulation projects. Some important, common questions are covered, such as the need to define model behavior using a conceptual ...
  • Formal languages for computer simulation: transdisciplinary models and applications 

    Guasch Petit, Antonio; Figueras Jové, Jaume; Casanovas Garcia, Josep (IGI Global, 2013-07)
    Book
    Restricted access - publisher's policy
    Petri nets are used by our students as a formal modeling technique before building a working simulation model in Arena or Simio. The Petri net model enables the simulation analyst to build a complete, unambiguous, and ...
  • Formalizing geographical models using specification and description language, the wildfire example 

    Fonseca Casas, Pau; Casanovas Garcia, Josep; Figueras Jové, Jaume; Guasch Petit, Antonio (2013)
    Conference report
    Open Access
    In this paper we explore how we can use Specification and Description Language, to represent simulation models that make an intensive use of geographical information, like environmental simulation models. The purpose is ...
  • Hypothesis testing by simulation of a medical study model using the expected net benefits criteria 

    Casanovas Garcia, Josep; Abbas Abbas, Ismail; Rovira Forns, Joan (2013-03-01)
    Article
    Open Access
    This work investigates whether to conduct a medical study from the point of view of the expected net benefit taking into account statistical power, time and cost. The hypothesis of this paper is that the expected net benefit ...
  • Integrated tool for the acoustic assessment and monitoring of marine activities and operations 

    Moura, André; Lopes, Diogo; Cruz, Erica; Hospital Bravo, Raúl; Sarrate Ramos, Josep; Díez, Pedro (2015)
    Conference report
    Open Access
  • Integrating bus stop modeling and simulation in public transport network design: a survey 

    Codina Sancho, Esteve; Fonseca Casas, Pau; Colls, Màxim; Montero Mercadé, Lídia (2012)
    Conference report
    Restricted access - publisher's policy
    In this paper a survey of public transportation network design and assignment models is presented with the purpose to analyze the level of detail that is considered regarding aspects such as congestion and interaction ...
  • Large-amplitude sloshing with submerged blocks 

    Huerta, Antonio; Liu, Win Kam (American Society of Mechanical Engineers, 1990-02-01)
    Article
    Open Access
    The computer simulation of forced vibrations induced on a water pool is presented in this paper. The complexity of the seismic fluid-structure interaction problem is accentuated by the large free surface motion. To overcome ...
  • Modeling a Chilean Hospital using specification and description language 

    Leiva Olmos, Jorge; Fonseca Casas, Pau; Ocaña Rebull, Jordi (IGI Global, 2013-07)
    Part of book or chapter of book
    Restricted access - publisher's policy
    In this chapter, the authors present a formal model of the Anesthesia Unit and Surgical Wards (UAPQ) of a Chilean hospital. The objective was to document and to understand its operation, to assist hospital management and ...
  • Modeling microwave drying of soils 

    Pérez Foguet, Agustí; Huerta, Antonio (1998-07)
    External research report
    Open Access