Ara es mostren els items 1-12 de 24

    • Variational mechanics and numerical methods for structural analysis 

      Andújar, Rabindranath (Universitat Politècnica de Catalunya, 2012-06-25)
      Projecte Final de Màster Oficial
      Accés obert
      This work focuses on the particular application of the variational principles of Lagrange and Hamilton for structural analysis. Different numerical methods are compared in their computation of the elastic energy through ...
    • Structural study of C2Cl6 by molecular dynamics 

      Henao Aristizábal, Andrés (Universitat Politècnica de Catalunya, 2011-09-22)
      Projecte Final de Màster Oficial
      Accés obert
      English: A Molecular Dynamics study of hexachloroethane C2Cl6 was done in order to study the structure at different temperatures, varying from 300K to 480K. The system at 480K showed a liquid phase, as reported in the ...
    • Smoothed Particle Hydrodynamics simulations of white dwarf close encounters in dense stellar systems 

      Aznar Siguan, Gabriela (Universitat Politècnica de Catalunya, 2011-09-22)
      Projecte Final de Màster Oficial
      Accés obert
      English: In old dense stellar systems collisions of white dwarfs are a rather frequent phenomenon. Here we present the results of several Smoothed Particle Hydrodynamics simulations of close encounters of white dwarfs to ...
    • Multivariate Curve Resolution applied to Ion Mobility Spectra 

      Oller Moreno, Sergio (Universitat Politècnica de Catalunya, 2011-09-22)
      Projecte Final de Màster Oficial
      Accés obert
      English: In this work, a Multivariate Curve Resolution (MCR) with Alternating Least Squares (ALS) method is described and used to identify the concentrations of a two-component (ethanol and acetone) mixture analysed with ...
    • Maximum Likelihood Approach for Stochastic Volatility Models 

      Camprodon Masnou, Jordi (Universitat Politècnica de Catalunya, 2011-09-22)
      Projecte Final de Màster Oficial
      Accés obert
      English: Volatility is a measure of the amplitude of price return fluctuations. Despite it is one of the most important quantities in finance, volatility is a hidden quantity because it is not directly observable. Here we ...
    • Swimmers’ Collective Dynamics Modelization 

      Ferré Porta, Guillem (Universitat Politècnica de Catalunya, 2011-09-22)
      Projecte Final de Màster Oficial
      Accés obert
      English: We describe a new model in order to study the properties of collections of self-propelled particles swimming in a two-dimensional fluid. Our model consist in two types of particles, the first interacting with each ...
    • Statistical Complex Analysis of Taxi Mobility in San Francisco 

      Sagarra Pascual, Oleguer (Universitat Politècnica de Catalunya, 2011-09-22)
      Projecte Final de Màster Oficial
      Accés obert
      English: The recent developments in technology of movement tracking devices such as Global Positioning (GPS), together with the increasing availability of consistent data bases, have lately given rise to the study of human ...
    • Global epidemic spreading processes in coupled networks 

      Saumell Mendiola, Anna (Universitat Politècnica de Catalunya, 2011-09-22)
      Projecte Final de Màster Oficial
      Accés obert
      English: We study the effect of coupling two random networks where an epidemic process propagates. A theoretical SIS model is applied and a new critical threshold for the existence of an endemic state is analytically ...
    • Characterization of the clustering phase transition of a complex network embedded in a hyperbolic plane 

      Colomer de Simón, Pol (Universitat Politècnica de Catalunya, 2011-09-22)
      Projecte Final de Màster Oficial
      Accés obert
      English: If we distribute nodes homogeneously in an hyperbolic plane and connect each possible pair of nodes with a probability that depends on the hyperbolic distance among them, heterogeneous degree distributions and ...
    • Infinite period bifurcation due to imperfections in rotating thermal convection 

      López Alonso, Jose Manuel (Universitat Politècnica de Catalunya, 2011-06-17)
      Projecte Final de Màster Oficial
      Accés obert
      A pinning area is a band of finite width where rotating waves with precession frequences near zero turn into steady non-axisymmetric solutions. Dynamical systems theory suggests that any imperfection breaking the SO(2) ...
    • Emergent Group Properties in Financial Markets 

      Doria Arrieta, Omar Alonso (Universitat Politècnica de Catalunya, 2011-06-17)
      Projecte Final de Màster Oficial
      Accés obert
      In the present we have analyzed the data from 480 companies of the S&P500 using the Random Matrix Theory and the Inverse Participation Ratio, we analyzed the eigenvalues and its respective eigenvectors in order to find ...
    • Avalanches in the 3D-GRFIM with metastable dynamics: Finite-size Effects on critical exponents 

      Baró i Urbea, Jordi (Universitat Politècnica de Catalunya, 2011-06-17)
      Projecte Final de Màster Oficial
      Accés obert
      The Sorted-List algorithm for the simulation of a 3D-GRFIM has been implemented in C++ and executed in DIRAC Iberian grid in order to obtain distributions of size and duration of magnetization avalanches. We have performed ...