Now showing items 1693-1712 of 66758

  • A model for estimating the impact of the domino effect on accident frequencies in quantitative risk assessments of storage facilities 

    Bernechea, Esteban; Vílchez Sánchez, Juan Antonio; Arnaldos Viger, Josep (2013-11)
    Article
    Restricted access - publisher's policy
    It is well known that the domino effect can have a major impact on accidents in storage facilities, as it can increase the consequences of an initial event considerably. However, quantitative risk assessments (QRAs) do not ...
  • A model for grain-size sorting over tidal sand ridges 

    Walgreen, M; de Swart, Huib E.; Calvete Manrique, Daniel (2004-07)
    Article
    Restricted access - publisher's policy
    A model was developed and analyzed to quantify the effect of graded sediment on the formation of tidal sand ridges. Field data reveal coarse (fine) sediment at the crests (in the troughs), but often phase shifts between ...
  • A model for non-free circle actions 

    Roig Martí, Agustín; Saralegi-Aranguren, Martintxo (1997)
    Article
    Open Access
    Let $\Phi: \Bbb S^{1}\times M\longrightarrow M$ be a smooth action of the unit circle $\Bbb S^{1}$ on a manifold $M$. In this work, we compute the minimal model of $M$ in terms of the orbit space $B$ and the fixed point ...
  • A model for opinion agreement and confidence in multi-expert multi-criteria decision making 

    Canfora, Gerardo; Troiano, Luigi (Universitat Politècnica de Catalunya. Secció de Matemàtiques i Informàtica, 2004)
    Article
    Open Access
    In multi-expert multi-criteria decision making problems, we often have to deal with different opinions, different importance of criteria and experts, missing data, unexpressed opinions and experts who are not fully ...
  • A model for railway induced ground vibrations in the frame of preliminary assessment studies 

    Arcos Villamarín, Robert (Universitat Politècnica de Catalunya, 2007-07-13)
    Doctoral thesis
  • A model for revocation forecasting in public-key infrastructures 

    Hernández Gañan, Carlos; Mata Diaz, Jorge; Muñoz Tapia, José Luis; Esparza Martín, Óscar; Alins Delgado, Juan José (2015-05-01)
    Article
    Restricted access - publisher's policy
    One of the hardest tasks of a certification infrastructure is to manage revocation. This process consists in collecting and making the revocation status of certificates available to users. Research on this topic has focused ...
  • A model for rockill compressibility 

    Oldecop, Luciano A.; Alonso Pérez de Agreda, Eduardo (Institution of Civil Engineers (http://www.ice.org.uk/), 2001)
    Article
    Open Access
    The paper presents a macroscopic constitutive model for rockill that includes the effect of water on compressibility and collapse phenomena. Breakage of rock particles and fracture propagation are basic underlying mechanisms ...
  • A model for sand ridges on the shelf: effect of tidal and steady currents 

    Calvete Manrique, Daniel; Walgreen, M.; Swart, Huib E. de; Falqués Serra, Albert (2001-05)
    Article
    Open Access
    The dynamics of sand ridges, as observed on the innershelves and midshelves of various coastal seas, are investigated within the framework of an idealized model. These seabed undulations include shoreface-connected sand ...
  • A Model for the analysis of concrete dams due to environmental thermal effects 

    Agulló Fité, Luís; Mirambell Arrizabalaga, Enrique; Aguado de Cea, Antonio (Emerald, 1996)
    Article
    Open Access
    In this article, an analytical model is presented for the simulation of the thermal behavior of dams that are subjected to the environmental thermal action during service. The method of solution adopted as well as the ...
  • A model for the global airport network based in the intermediation degree of the edges 

    Segura Revilla, Francesc (Universitat Politècnica de Catalunya, 2011-07-25)
    Bachelor thesis
    Open Access
    Many real networks as the World Wide Web, the telephone and electrical networks and transportation (including air routes), biological or social systems belong to a category called ―small-world scale-free‖. The features of ...
  • A model for the non linear dynamic analysis of reinforced concrete and masonry framed structures 

    Sima Brum, José Fernando (Universitat Politècnica de Catalunya, 2010-02-05)
    Doctoral thesis
  • A model for the nonlinear, time-dependent and strengthening analysis of shear critical frame concrete structures 

    Ferreira, Denise Carina Santos (Universitat Politècnica de Catalunya, 2013-03-22)
    Doctoral thesis
  • A model for the simulation of the Sharon process: pH as a key factor 

    Magrí Aloy, Albert; Corominas, L; López, Helio; Campos Pozuelo, Elena; Balaguer, Marilos; Colprim, Jesus; Flotats Ripoll, Xavier (2007)
    Article
    Restricted access - publisher's policy
  • A model for the ultrasonic detection of surface-breaking cracks by the scanning laser source technique 

    Arias Vicente, Irene; Achenbach, J. D. (2004-01)
    Article
    Open Access
    A model for the scanning laser source (SLS) technique is presented. The SLS is a novel laser-based inspection method for the ultrasonic detection of small surface-breaking cracks. The generated ultrasonic signal is monitored ...
  • A model grid for the spectral analysis of X-ray emission in young Type Ia supernova remnants 

    Badenes Montoliu, Carles; Bravo Guil, Eduardo; Borkowski, K.J. (2005-08)
    Article
    Restricted access - publisher's policy
    We address a new set of models for the spectral analysis of the X-ray emission from young, ejecta-dominated Type Ia supernova remnants. These models are based on hydrodynamic simulations of the interaction between Type Ia ...
  • A model in price formation 

    Anwasia, Benjamin (Universitat Politècnica de Catalunya, 2014-07)
    Master thesis
    Open Access
    In this thesis a particular example of a price formation model was studied. The model consist of a (large) group of buyers and a (large) group of vendors trading a particular good at a certain price. The model is given by ...
  • A model of active and significative learning in the resolution of problems 

    Zanol Sauer, Laurete; Soares, Eliana M. S.; Lima, Isolda G. de (Active Learning for Engineering Education (ALE), 2009)
    Conference lecture
    Open Access
    In this paper we present a description and analysis of an activity held in the Mathematics courses in Engineering at the Universidade de Caxias do Sul. The research was planned taking into account requirements for the ...
  • A model of creativity from the paradigm of complexity 

    Boccardo Irigoyen, Renzo José; Lloveras Macià, Joaquín (The Design Society, 2010)
    Conference lecture
    Restricted access - publisher's policy
    The ability to create is what distinguishes us from other living things, it is what makes possible to combine the knowledge in an original and useful way in the pursuit of invention and innovation. Creativity can be seen ...
  • A model of decision with lingustic knowledge 

    Lamata, M.T. (Universitat Politècnica de Catalunya. Secció de Matemàtiques i Informàtica, 1994)
    Article
    Open Access
    The aim of this paper is to develop a new aggregating method for the decision problem in which the possible values of rewards are known in linguistic terms. We show new operators for solving this problem, as well as the ...
  • A model of routine lifetime optimization with linguistic knowledge in wireless ad-hoc networks 

    Natsheh, Essam; Khatum, Sabira; Jantan, Adznan B. (Universitat Politècnica de Catalunya. Secció de Matemàtiques i Informàtica, 2006)
    Article
    Open Access
    Ad-hoc On-Demand Distance Vector (AODV) routing protocol has been and continues to be a very active and fruitful research protocol since its introduction in the wireless ad-hoc networks. AODV uses a static value for ...