Ara es mostren els items 1-10 de 10

    • Application of reverse engineering concepts to compressed air tank 

      Gilles, Guedia Guemo (Universitat Politècnica de Catalunya, 2010-06)
      Projecte Final de Màster Oficial
      Accés restringit per decisió de l'autor
      This study, application of reverse engineering concepts to a compressed air tank, leads us to calculate tank shell in static and fatigue, by using of formulas and software. Furthermore, unsatisfying results from basics ...
    • Desarrollo de una herramienta numérica de problema inverso para la estimación óptima de parámetros de entrada en Kratos Multiphysics 

      Cuesta Jiménez, Jon (Universitat Politècnica de Catalunya, 2023-06-27)
      Projecte Final de Màster Oficial
      Accés obert
      En problemes d'enginyeria, sovint és necessari calibrar els paràmetres d'entrada per poder reproduir els resultats experimentals de referència. Tot i que el procés de càlcul sigui correcte, si els paràmetres no estan ...
    • Dirichlet-to-Robin matrix on networks 

      Arauz Lombardía, Cristina; Carmona Mejías, Ángeles; Encinas Bachiller, Andrés Marcos (2014)
      Article
      Accés obert
      In this work, we de ne the Dirichlet{to{Robin matrix associated with a Schr odinger type matrix on general networks, and we prove that it satis es the alternating property which is essential to characterize those matrices ...
    • On the asymptotic wavenumber of spiral waves in lambda - omega systems 

      Aguareles Carrero, María; Baldomá Barraca, Inmaculada; Martínez-Seara Alonso, M. Teresa (2016-01-01)
      Article
      Accés obert
      In this paper we consider spiral wave solutions of a general class of $\lambda -\omega $ systems with a small twist parameter q and we prove that the asymptotic wavenumber of the spirals is a ${{\mathcal{C}}^{\infty}}$ ...
    • Recovering the conductances on grids 

      Arauz Lombardía, Cristina; Carmona Mejías, Ángeles; Encinas Bachiller, Andrés Marcos (2014)
      Article
      Accés restringit per política de l'editorial
      In this work, we present an algorithm to the recovery of the conductance of a 2– dimensional grid. The algorithm is based in the solution of some overdetermined partial boundary value problems defined on the grid.
    • Recovering the conductances on grids: A theoretical justification 

      Arauz Lombardía, Cristina; Carmona Mejías, Ángeles; Encinas Bachiller, Andrés Marcos; Mitjana Riera, Margarida (2016)
      Article
      Accés obert
      In this work, we present an overview of the work developed by the authors in the context of inverse problems on nite networks. This study performs an extension of the pioneer studies by E.B. Curtis and J.A. Morrow, ...
    • Redes estrella con la M-propiedad 

      Encinas Bachiller, Andrés Marcos (Editorial Universidad de Almería, 2015)
      Text en actes de congrés
      Accés obert
      En este trabajo hacemos una aportación al problema inverso de M –matrices irreducibles, simétricas y singulares, que consiste en determinar c uándo su inversa de grupo es también una M –matriz. Mostramos primero que las ...
    • Reflector design from radiance distributions 

      Patow, Gustavo Ariel; Pueyo Sandez, Francesc Xavier; Vinacua Pla, Álvaro (Institute for Applied Mathematics and Information Technology, 2004-12)
      Article
      Accés restringit per política de l'editorial
      This paper proposes a technique for the design of reflector shapes from prescribed optical properties (far field radiance distribution) and geometrical constraints, which is of high importance in the field of Lighting ...
    • Some inverse problems 

      Christopher, Colin; Llibre Saló, Jaume; Pantazi, Chara; Walcher, Sebastian (2011-07-06)
      Report de recerca
      Accés restringit per política de l'editorial
      The Darboux theory of integrability for planar polynomial di®erential equations is a classical ¯eld, with connections to Lie symmetries, di®erential algebra and other areas of mathematics. In the present paper we introduce ...
    • Topology of Cayley graphs applied to inverse additive problems 

      Hamidoune, Yahya Ould (Iniciativa Digital Politècnica, 2011)
      Text en actes de congrés
      Accés obert
      We present the basic isopermetric structure theory, obtaining some new simplified proofs. Let 1 ≤ r ≤ k be integers. As an application, we obtain simple descriptions for the subsets S of an abelian group with |kS| ≤ ...