Now showing items 1939-1958 of 77074

  • A mixed three-field FE formulation for stress accurate analysis including the incompressible limit 

    Chiumenti, Michèle; Cervera Ruiz, Miguel; Codina, Ramon (2015-01)
    Article
    Open Access
    In previous works, the authors have presented the stabilized mixed displacement/pressure formulation to deal with the incompressibility constraint. More recently, the authors have derived stable mixed stress/displacement ...
  • A mixed-signal architecture for high complexity CMOS fuzzy controllers 

    Navas González, Rafael; Vidal Verdú, Fernando; Rodríguez-Vázquez, Ángel (Universitat Politècnica de Catalunya. Secció de Matemàtiques i Informàtica, 1999)
    Article
    Open Access
    Analog circuits provide better area/power efficiency than their digital counterparts for low-medium precision requirements [1]. This limit in precision, as well as the lack of design tools when compared to the digital ...
  • A mobile robotic platform capable of stereo vision based on blod detection 

    Caminal Pallarès, Helena (Universitat Politècnica de Catalunya, 2014-12)
    Master thesis (pre-Bologna period)
    Open Access
    In robotics, vision is an indispensable tool. It is used for a wide spectrum of applications, such as Simultaneous Localization And Mapping (SLAM), object recognition and communication. Vision is expensive both in terms ...
  • A mobile Scenario for Electronic Publishing based on the MIPAMS Architecture 

    Delgado Mercè, Jaime; Llorente Viejo, Silvia; Rodríguez Luna, Eva; Torres Padrosa, Víctor (2011)
    Conference report
    Open Access
    This paper describes several scenarios for the management of digital media, focusing on electronic publishing from mobile environments. The solution proposed in those scenarios is based on MIPAMS (Multimedia Information ...
  • A model and an algorithm for the grouping problem in telecom networks 

    García, F.; Hackbarth, Klaus D. (Universitat Politècnica de Catalunya. Centre de Càlcul, 1991)
    Article
    Open Access
    This paper deals with the so called grouping problem which arises in telecommunication network optimization when transmission equipment with a certain hierarchy is used. It is shown how this problem is embedded in the ...
  • A model for CAGD using fuzzy logic 

    Jacas Moral, Juan; Monreal Pujadas, Amadeo; Recasens Ferrés, Jorge (1997-01)
    Article
    Restricted access - publisher's policy
    This paper presents a first approach to a system based on fuzzy logic for the design of curves and surfaces in the context of computer aided geometric design. Bézier curves and surfaces can be seen as particular cases of ...
  • A model for credit scoring: an application of discriminant analysis 

    Artís Ortuño, Manuel; Guillén, Montserrat; Martínez, José M.ª (Institut d'estadística de Catalunya, 1994)
    Article
    Open Access
    The application of statistical techniques in decision making, and more specifically for classification requirements, has proved to be adequate in the context of financial problems. In this study, we present the methodology ...
  • 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 Janus and Epimetheus 

    Olivé Farga, David (Universitat Politècnica de Catalunya, 2015-10)
    Bachelor thesis
    Open Access
    In this work we present a model that tries to fit the behaviour of Janus and Epimetheus, two co-orbital moons of Saturn. This has been done before using the model for the two-dimensional restricted three-body problem, and ...
  • 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
    Open Access
  • 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
    Open Access
    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
    Open Access
  • 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
    Open Access