Browsing by Subject "Numerical calculations"
Now showing items 1-20 of 26
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A domain decomposition technique for pseudospectra computations
(2013)
Conference report
Restricted access - publisher's policyThe 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
(John Wiley & sons, 2019-01-01)
Article
Open AccessThe 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
(Universitat Politècnica de Catalunya, 2020-07)
Bachelor thesis
Open AccessThis 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
(Universitat Politècnica de Catalunya, 2015-07-01)
Bachelor thesis
Open AccessA 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
(2014-07)
Research report
Open Access -
Characterizing path-like trees from linear configurations
(2017)
Conference lecture
Open AccessAssume 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
(Springer, 2013-07-15)
Part of book or chapter of book
Open AccessNumerical 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
(Frontiers Media SA, 2020-05-05)
Article
Open AccessMany 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
(Universitat Politècnica de Catalunya, 2015-10-29)
Bachelor thesis
Restricted access - author's decision -
Dynamic characteristics of stone masonry walls before and after damage: Experimental and numerical investigations
(Elsevier, 2024-03-03)
Article
Open AccessSeismic behavior of masonry walls has been heavily investigated, especially by means of laboratory experiments employing cyclic tests to determine the mechanical parameters and seismic capacity. Nevertheless, the dynamic ... -
Dynamics of Many-Body Quantum Systems
(Universitat Politècnica de Catalunya, 2015-07-03)
Bachelor thesis
Open AccessWe 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
(Elsevier, 2021-01-15)
Part of book or chapter of book
Open AccessOscillatory 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
(2009-02-01)
Article
Restricted access - publisher's policyDetailed 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
(2009-02)
Article
Open Access -
High-performance simulation of the 16th Hilbert's problem
(Universitat Politècnica de Catalunya, 2021-06-21)
Bachelor thesis
Open AccessAquest 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
(Universitat Politècnica de Catalunya, 2011-09)
Master thesis
Open Access -
Implementación hardware de división y raíz cuadrada por métodos iterativos
(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
(Universitat Politècnica de Catalunya, 2015-07-01)
Bachelor thesis
Open AccessConstrucció 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
(Barcelona Supercomputing Center, 2015-05-05)
Conference report
Open AccessDomain 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
(Springer Nature, 2022-08)
Article
Open AccessDesigning 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. ...