Ara es mostren els items 1-20 de 109

    • A bonded discrete element method for modeling ship–ice interactions in broken and unbroken sea ice fields 

      Jou Devesa, Oriol; Celigueta Jordana, Miguel Ángel; Latorre Sánchez, Juan Salvador; Arrufat Garcia, Ferran; Oñate Ibáñez de Navarra, Eugenio (Springer, 2019-10)
      Article
      Accés obert
      This work investigates the failure patterns of ice cakes and floe-ice when loaded by a moving and sloping structure (ice-breaking ships and cones). In the paper, we introduce the most frequently encountered ice-infested ...
    • A finite deformation membrane based on inter-atomic potentials for the transverse mechanics of nanotubes 

      Arroyo Balaguer, Marino; Belytschko, T. (2003-03)
      Article
      Accés obert
      A finite deformation hyper-elastic membrane theory based on inter-atomic potentials for crystalline films composed of a single atomic layer is developed. For this purpose, an extension of the standard Born rule that exploits ...
    • A stabilized mixed finite element approximation for incompressible finite strain solid dynamics using a total Lagrangian formulation 

      Castañar Pérez, Inocencio; Baiges Aznar, Joan; Codina, Ramon (2020-08)
      Article
      Accés obert
      In this work a new methodology for both the nearly and fully incompressible transient finite strain solid mechanics problem is presented. To this end, the momentum equation is complemented with a constitutive law for the ...
    • A versatile thiol-ene/sol-gel two-stage curing process based on a hyperbranched polyester with different degrees of 10-undecenoyl modification 

      Flores Guillen, Marjorie; Foix, David; Serra Albet, Maria Àngels; Ramis Juan, Xavier; Sangermano, Marco (2014-04-01)
      Article
      Accés restringit per política de l'editorial
      Hybrid thiol-ene system based on a hyperbranched polyester with different degrees of 10-undecenoyl modification are prepared via a dual UV-thermal process. The pristine thiol-ene formulation shows a high reactivity towards ...
    • A+B=0 reaction with different initial patterns 

      Sancho, Jose Maria; Romero, A. H.; Lindenberg, Katja; Sagués Mestre, Francesc; Reigada Sanz, R.; Lacasta Palacio, Ana María (American Chemical Society, 1996-10-10)
      Article
      Accés restringit per política de l'editorial
      We present a detailed study of the chemical reaction A + B f 0 in two dimensions for different initial distributions of reactants as characterized by the structure function. We argue that the long-wavelength components ...
    • Accuracy of two stress update algorithms for shear-free large deformations paths 

      Rodríguez Ferran, Antonio; Huerta, Antonio (1999-06)
      Article
      Accés obert
      The behavior of two stress update algorithms for shear-free large deformation paths is analyzed. The first algorithm has a truncation error of order 1. The second algorithm has a truncation error of order 2. As a consequence, ...
    • Adhesion and friction control localized folding in supported graphene 

      Zhang, Kuan; Arroyo Balaguer, Marino (American Institute of Physics (AIP), 2013-05)
      Article
      Accés restringit per política de l'editorial
      Graphene deposited on planar surfaces often exhibits sharp and localized folds delimiting seemingly planar regions, as a result of compressive stresses transmitted by the substrate. Such folds alter the electronic and ...
    • Analysis of bias stress on thin-film transistors obtained by Hot-Wire Chemical Vapour Deposition 

      Dosev, D K; Puigdollers i González, Joaquim; Orpella García, Alberto; Voz Sánchez, Cristóbal; Fonrodona, Marta; Soler Vilamitjana, David; Marsal, L F; Pallarès Marzal, Josep; Bertomeu Balaguero, Joan; Andreu Batallé, Jordi; Alcubilla González, Ramón (2001-02)
      Article
      Accés obert
      The stability under gate bias stress of unpassivated thin film transistors was studied by measuring the transfer and output characteristics at different temperatures. The active layer of these devices consisted of in ...
    • Análisis de la permeación de tritio en los canales de metal líquido de las envolturas regeneradoras de un reactor de fusión en presencia de burbujas de helio 

      Batet Miracle, Lluís; Mas de les Valls Ortiz, Elisabet; Sedano, L.A. (2012)
      Text en actes de congrés
      Accés obert
      En el interior de los canales de metal l quido de las envolturas regeneradoras de un reactor de fusi on, la posibilidad de existencia de burbujas de helio nucleado no es remota. El helio se forma junto al tritio en ...
    • Barocaloric and magnetocaloric effects in Fe49Rh51 

      Stern-Taulats, E.; Planes, Antoni; Lloveras Muntané, Pol Marcel; Barrio Casado, María del; Tamarit Mur, José Luis; Pramanick, Sabyasachi; Majumdar, Subham; Frontera, Carlos; Mañosa, Lluís (2014-06-06)
      Article
      Accés restringit per política de l'editorial
      We report on calorimetry under applied hydrostatic pressure and magnetic field at the antiferromagnetic-ferromagnetic (AFM/FM) transition of Fe49Rh51. Results demonstrate the existence of a giant barocaloric effect in this ...
    • Barocaloric properties of quaternary Mn3(Zn,In)N for room-temperature refrigeration applications 

      Boldrin, David; Mendive-Tapia, Eduardo; Zemen, Jan; Staunton, Julie b.; Aznar Luque, Araceli; Tamarit Mur, José Luis; Lloveras Muntané, Pol Marcel; Moya Raposo, Xavier; Cohen, Leslie (American Physical Society (APS), 2021-10-01)
      Article
      Accés obert
      The magnetically frustrated manganese nitride antiperovskite family displays significant changes of entropy under hydrostatic pressure that can be useful for the emerging field of barocaloric cooling. Here we show that ...
    • Beyond-Luttinger-liquid thermodynamics of a one-dimensional Bose gas with repulsive contact interactions 

      Rosi, Giulia de; Massignan, Pietro Alberto; Lewenstein, Maciej; Astrakharchik, Grigori (American Physical Society, 2019-11-07)
      Article
      Accés obert
      We present a thorough study of the thermodynamics of a one-dimensional repulsive Bose gas, focusing in particular on corrections beyond the Luttinger-liquid description. We compute the chemical potential, pressure, and ...
    • Catalytic activity and characterization of Fe-Zn-Mg-Al hydrotalcites in biohydrogen production 

      Wimonsong, Pornthip; Llorca Piqué, Jordi; Nitisoravut, Rachnarin (2013-08-21)
      Article
      Accés restringit per política de l'editorial
      Four different M2þeMgeAl hydrotalcite (HT) materials were investigated for their effect on biohydrogen enhancement, where M2þ is Fe and/or Zn. HTs were synthesized by the coprecipitation method and characterized by ...
    • Ceramic technology. How to characterise ceramic glazes 

      Pradell Cara, Trinitat; Molera Marimon, Judit (2020-07-25)
      Article
      Accés obert
      Glazes add value to ceramic, improve its appearance (colour and shine) and make it waterproof. Through the choice of colours and designs, glazes made ceramics fashionable, even luxurious, and therefore, an object of trade. ...
    • Changes in the occurrence of extreme wave storms in the Catalan coast: a Bayesian approach 

      Corral López, Jesús; Ortego Martínez, María Isabel (Universitat de Barcelona. Edicions i Publicacions, 2016)
      Comunicació de congrés
      Accés restringit per política de l'editorial
    • Comparing two algorithms to add large strains to small-strain FE code 

      Rodríguez Ferran, Antonio; Huerta, Antonio (1998-09)
      Article
      Accés obert
      Two algorithms for the stress update (i.e., time integration of the constitutive equation) in large-strain solid mechanics are discussed, with particular emphasis on two issues: (1) The incremental objectivity; and (2) ...
    • Comparison of the optical properties of metallic and high dielectric 2D metasurfaces 

      González Morote, Víctor (Universitat Politècnica de Catalunya, 2022-07-20)
      Projecte Final de Màster Oficial
      Accés restringit per acord de confidencialitat
      Realitzat a/amb:   Institut de Ciència de Materials de Barcelona
      Chiral metasurfaces can transmit one circularly polarized light, while almost completely refuse the opposite handedness. In this project, a comparison of the optical properties of metallic vs high dielectric 2D chiral ...
    • Composition, microstructure and corrosion mechanisms of Catalan Modernist enamelled glass 

      Beltran González, Martí; Schibille, Nadine; Gratuze, Bernard; Vallcorba, Oriol; Bonet, Jordi; Pradell Cara, Trinitat (Elsevier, 2021-02)
      Article
      Accés obert
      The materials, painting techniques and conservation state of the enamelled stain glass of the Catalan Modernist workshops operating in Barcelona are studied. It is known for its creativity and artistic value where textured, ...
    • Computable bounds of functional outputs in linear visco-elastodynamics 

      Verdugo Rojano, Francesc; Díez, Pedro (2012)
      Article
      Accés obert
      This work presents a new technique yielding computable bounds of quantities of interest in the framework of linear visco-elastodynamics. A novel expression for the error representation is introduced, alternative to the ...
    • Computable bounds of linear functional outputs in linear visco- elastodynamics 

      Verdugo Rojano, Francesc; Díez, Pedro (2012)
      Text en actes de congrés
      Accés obert
      This work presents a new technique yielding computable bounds of quantities of interest in the framework of linear visco-elastodynamics. A novel expression for the error representation is introduced, alternative to the ...