Now showing items 1-20 of 25

    • A domain decomposition technique for pseudospectra computations 

      Astudillo, Reinaldo; Castillo, Zenaida; Otero Calviño, Beatriz (2013)
      Conference report
      Restricted access - publisher's policy
      The pseudospectra, a tool to study the behavior of systems associated with nonnormal matrices has been considered extremely useful in the last decades, for that reason there is a recent interest in its efficient computation. ...
    • A new 3D equilibrated residual method improving accuracy and efficiency of flux-free error estimates 

      Parés Mariné, Núria; Díez, Pedro (John Wiley & sons, 2019-01-01)
      Article
      Open Access
      The paper presents a novel strategy providing fully computable upper bounds for the energy norm of the error in the context of three-dimensional linear finite element approximations of the reaction-diffusion equation. The ...
    • A new mathematical profile for experimental Raman spectra of historical mineral pigments 

      Penalba Albuixech, Andrea (Universitat Politècnica de Catalunya, 2020-07)
      Bachelor thesis
      Open Access
      This final degree project (GFR) is based on the use of Raman spectroscopy as a method of characterizing pigments of mineral origin and especially those used in art. One of the fundamental objectives has been to find precise ...
    • Caracterització de la interacció ió-grafè en una solució aquosa mitjançant simulació de dinàmica molecular 

      Marchena Angos, Miquel (Universitat Politècnica de Catalunya, 2015-07-01)
      Bachelor thesis
      Open Access
      A proper description of ions at aqueous interfaces is a fundamental problem which has been thoroughly studied both theoretically and experimentally for a long time. The interaction of ions with interfaces plays an important ...
    • Càlcul numèric. Manual de pràctiques 

      Lázaro Ochoa, José Tomás; Ollé Torner, Mercè; Pacha Andújar, Juan Ramón (2014-07)
      Research report
      Open Access
    • Characterizing path-like trees from linear configurations 

      López Masip, Susana Clara (2017)
      Conference lecture
      Open Access
      Assume that we embed the path Pn as a subgraph of a 2-dimensional grid, namely, Pk¿Pl. Given such an embedding, we consider the ordered set of subpaths L1, L2,...,Lm which are maximal straight segments in the embedding, ...
    • Computation of bounds for anchor problems in limit analysis and decomposition techniques 

      Muñoz Romero, José; Rabiei, Syednima; Lyamin, Andrei; Huerta, Antonio (Springer, 2013-07-15)
      Part of book or chapter of book
      Open Access
      Numerical techniques for the computation of strict bounds in limit analyses have been developed for more than thirty years. The efficiency of these techniques have been substantially improved in the last ten years, and ...
    • Development of a new 3D hybrid model for epithelia morphogenesis 

      Ioannou, Filippos; Dawi, Malik Ali A.; Tetley, Rob; Mao, Yanlan; Muñoz Romero, José (Frontiers Media SA, 2020-05-05)
      Article
      Open Access
      Many epithelial developmental processes like cell migration and spreading, cell sorting, or T1 transitions can be described as planar deformations. As such, they can be studied using two-dimensional tools and vertex models ...
    • Disseny acústic d'un array d'alta freqüència 

      Ganella Xarau, Marc (Universitat Politècnica de Catalunya, 2015-10-29)
      Bachelor thesis
      Restricted access - author's decision
    • Dynamics of Many-Body Quantum Systems 

      Giménez Grau, Aleix (Universitat Politècnica de Catalunya, 2015-07-03)
      Bachelor thesis
      Open Access
      We study the ground state and the excitations of quantum bose systems. The hypernetted chain equations (HNC) are introduced and we show that the methods based on them produce acceptable approximations of the static structure ...
    • Effects of time delays and viscoelastic parameters in oscillatory response cell monolayers 

      Borja, Cristian; Moral, Elena; Muñoz Romero, José (Elsevier, 2021-01-15)
      Part of book or chapter of book
      Open Access
      Oscillatory response of cellular tissues has been observed in multipleembryogenetic developmental stages. The source of these oscillations hasbeen attributed to imbalance of instabilities in the chemo-mechanical sig-nalling ...
    • Flamelet mathematical models for non-premixed laminar combustion 

      Carbonell Sánchez, Daniel; Pérez Segarra, Carlos David; Coelho, P.J.; Oliva Llena, Asensio (2009-02-01)
      Article
      Restricted access - publisher's policy
      Detailed numerical calculations based on the solution of the full transport equations have been compared with flamelet calculations in order to analyse the flamelet concept for laminar diffusion flames. The goal of this ...
    • Habilidades perdidas 

      Barceló Garcia, Miquel (2009-02)
      Article
      Open Access
    • High-performance simulation of the 16th Hilbert's problem 

      Boné Ribó, Aleix (Universitat Politècnica de Catalunya, 2021-06-21)
      Bachelor thesis
      Open Access
      Aquest projecte implementa un codi en CUDA per a la detecció de cicles límit en sistemes d'equacions diferencials ordinàries de segon grau. S'empren tècniques de càlcul numèric per a la computació de trajectòries en el ...
    • Il.luminació Global per Ciutats 

      Roure Garcia, Ferran (Universitat Politècnica de Catalunya, 2011-09)
      Master thesis
      Open Access
    • Implementación hardware de división y raíz cuadrada por métodos iterativos 

      Valbuena Gonzalo, Esther (Universitat Politècnica de Catalunya, 2022-01-24)
      Bachelor thesis
      Restricted access - confidentiality agreement
    • Mètodes per a la resolució d'equacions no lineals amb l'operador diferències dividides 

      Corella Pérez, Sandra (Universitat Politècnica de Catalunya, 2015-07-01)
      Bachelor thesis
      Open Access
      Construcció i estudi de mètodes iteratius d'un i dos passos per a la resolució d'equacions no lineals amb l'operador diferències dividides. Estudi d'ordres i radis de convergència, comparativa de llibreries de multiprecisió ...
    • Numbering along advection for Gauss-Seidel and bidiagonal preconditioners 

      Córdoba, Paula; Houzeaux, Guillaume (Barcelona Supercomputing Center, 2015-05-05)
      Conference report
      Open Access
      Domain decomposition methods (DDM) are often chosen to precondition sparse linear systems of equations, as they are famous to well-improve the convergence of iterative solvers. But at the same time, they are difficult to ...
    • Piezoelectric elements subjected to low frequency excitation. Empirical determination of stress and frequency influence on piezoelectric parameters 

      Bernat Masó, Ernest; Mercedes Cedeño, Luis Enrique (Springer Nature, 2022-08)
      Article
      Open Access
      Designing optimum energy harvesting devices is the aim of several developments based on numerical or analytical studies of different piezoelectric configurations that usually consider constant piezoelectric properties. ...
    • Quantum Many-Body Systems in 1D: One Dimensional Hydrogen 

      Vidal Arias, Alfredo José (Universitat Politècnica de Catalunya, 2015-06-22)
      Bachelor thesis
      Open Access
      The ground-state properties of one-dimensional spin polarized hydrogen, deuterium and tritium at zero temperature are obtained by means of Diffusion Monte Carlo calculations (DMC). The equations of state of the three ...