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Ara es mostren els items 164579-164598 de 245526

    • On the theory of chiral plates and associated system of Timoshenko–Ehrenfest type 

      Iesan, Dorin; Quintanilla de Latorre, Ramón (2021-09)
      Article
      Accés obert
      The chiral effects cannot be described by means of the classical theory of elasticity. In this paper we study the thermoelastic deformation of chiral plates in the context of the strain gradient theory of thermoelasticity. ...

    • On the thermal cyclic precipitation of aqueous solutions for heat powered cycles in space 

      Arias Montenegro, Francisco Javier (American Institute of Aeronautics and Astronautics (AIAA), 2018)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      Consideration is given to a novel process for heat transport, mass transport, thermal storage and mechanical transformation of heat based in the cyclic precipitation of aqueous solutions when an input of heat is applied ...

    • On the thermal noise introduced by a resistor in a circuit 

      Vargas Drechsler, Manuel; Pallàs-Areny, Ramon (IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC, 1996-02-01)
      Working paper
      Accés obert
      Comentari sobre l'article publicat anteriorment pels mateixos autors: Vargas, M; Pallás, R; The seemingly paradoxical noise behaviour some active circuits. IEEE Transactions on Instrumentation and Measurement. 1994, vol. ...

    • On the thermodynamical and variational consistency of cohesize zone models at finite strains 

      Mosler, J.; Scheider, I. (CIMNE, 2011)
      Text en actes de congrés
      Accés obert
      In the present contribution, the thermodynamical and variational consistency of cohesive zone models is critically analyzed. Starting from cohesive zone models suitable for fully reversible deformation, the restrictions ...

    • On the thermoelasticity with several dissipative mechanisms of type III 

      Fernández García, José Ramón; Quintanilla de Latorre, Ramón (2023-05-30)
      Article
      Accés obert
      It is accepted that we cannot obtain the exponential decay of the solutions to the type III thermoelasticity when the dimension of the domain is greater than one. In this short note, we prove that we can show the exponential ...

    • On the thermoelasticity with two porosities: asymptotic behaviour 

      Bazarra, Noelia; Fernández, José Ramón; Leseduarte Milán, María Carme; Magaña Nieto, Antonio; Quintanilla de Latorre, Ramón (2019-09-01)
      Article
      Accés obert
      In this paper we consider the one-dimensional version of thermoelasticity with two porous structures and porous dissipation on one or both of them. We first give an existence and uniqueness result by means of semigroup ...

    • On the threshold of bounded pseudo-distances 

      Trillas, Enric; Soto, Adolfo R. de (Universitat Politècnica de Catalunya. Secció de Matemàtiques i Informàtica, 2008)
      Article
      Accés obert
      This paper deals with the relationship between bounded pseudo-distances and its associated W'-indistinguishabilities, from which the idea of threshold of transitivity comes. By the way, bounded pseudo-distances are characterized

    • On the time decay for an elastic problem with three porous structures 

      Fernández García, José Ramón; Quintanilla de Latorre, Ramón (Springer, 2023-05-18)
      Article
      Accés obert
      In this paper, we study the three-dimensional porous elastic problem in the case that three dissipative mechanisms act on the three porosity structures (one in each component). It is important to remark that we consider ...

    • On the time decay for the MGT-type porosity problems 

      Baldonedo, Jacobo; Fernández, Jose R.; Quintanilla de Latorre, Ramón (American Institute of Mathematical Sciences, 2022-08)
      Article
      Accés obert
      In this work we study three different dissipation mechanisms arising in the so-called Moore-Gibson-Thompson porosity. The three cases correspond to the MGT-porous hyperviscosity (fourth-order term), the MGT-porous viscosity ...

    • On the time decay in phase-lag thermoelasticity with two temperatures 

      Magaña Nieto, Antonio; Miranville, Alain; Quintanilla de Latorre, Ramón (AMER INST MATHEMATICAL SCIENCES-AIMS, 2019-09-12)
      Article
      Accés obert
      The aim of this paper is to study the time decay of the solutions for two models of the one-dimensional phase-lag thermoelasticity with two temperatures. The first one is obtained when the heat flux vector and the inductive ...

    • On the time decay of solutions for non-simple elasticity with voids 

      Liu, Zhuangyi; Magaña Nieto, Antonio; Quintanilla de Latorre, Ramón (Wiley-VCH, 2016-07-01)
      Article
      Accés obert
      In this work we consider the non-simple theory of elastic material with voids and we investigate how the coupling of these two aspects of the material affects the behavior of the solutions. We analyze only two kind of ...

    • On the time decay of solutions in micropolar viscoelasticity 

      Leseduarte Milán, María Carme; Magaña Nieto, Antonio; Quintanilla de Latorre, Ramón (2015-07-01)
      Article
      Accés obert
      This paper deals with isotropic micropolar viscoelastic materials. It can be said that that kind of materials have two internal structures: the macrostructure, where the elasticity effects are noticed, and the ...

    • On the timing of discrete events in event-driven control systems 

      Velasco García, Manel; Martí Colom, Pau; Lozoya, Camilo (2008-04-01)
      Article
      Accés obert
      This paper presents an analysis method to determine offline at what intervals have to be taken the samples for various types of event- driven control systems.

    • On the tipology of vertex-transitive graphs 

      Hamidoune, Yahya Ould (2010-06-09)
      Audiovisual
      Accés obert

    • On the topological dynamics and phase-locking renormalization of Lorenz-Like maps 

      Alseda Soler, Lluís; Falcó, A. (2000)
      Article
      Accés obert
      The aim of this paper is twofold. First we give a characterization of the set of kneading invariants for the class of Lorenz--like maps considered as a map of the circle of degree one with one discontinuity. In a second ...

    • On the topological index of irregular surfaces 

      Barja Yáñez, Miguel Ángel; Naranjo, J. C.; Pirola, Gian Pietro (2005)
      Article
      Accés obert
      We study the topological index of some irregular surfaces that we call generalized Lagrangian. We show that under certain hypotheses on the base locus of the Lagrangian system the topological index is non-negative. For ...

    • On the topological optimization of horizontal links in eccentrically braced frames 

      Ramonell Cazador, Carlos; Chacón Flores, Rolando Antonio (2021-10)
      Article
      Accés obert
      This paper presents an implementation of structural optimization algorithms for the design of horizontal links of Eccentrically Braced Frames (EBFs) when subjected to monotonic shear loading. The objective is to study ...

    • On the topology of 3 -manifolds and the Poincaré Conjecture 

      Burjons Pujol, Elisabet (Universitat Politècnica de Catalunya, 2013-07)
      Treball Final de Grau
      Accés obert
      This work tries to understand the Poincaré conjecture statement and some of the tools that were used and developed towards its proving. It contains a historic introduction that explains how the problem arised and when the ...

    • On the Torelli problem and Jacobian Nullwerte in genus three 

      Guàrdia Rubies, Jordi (2008)
      Article
      Accés obert
      We give a closed formula for recovering a non-hyperelliptic genus three curve from its period matrix, and derive some identities between Jacobian Nullwerte in dimension three.

    • On the Totally Asynchronous Interference Channel with Single-User Receivers 

      Calvo Page, Eduard; Rodríguez Fonollosa, Javier; Vidal Manzano, José (IEEE Press. Institute of Electrical and Electronics Engineers, 2009)
      Text en actes de congrés
      Accés obert
      The performance characterization of decentralized wireless networks with uncoordinated sender-destination pairs motivates the study of the totally asynchronous interference channel with single-user receivers. Since this ...