Ara es mostren els items 13-24 de 454

    • Growth and physical properties of highly oriented La-doped (K,Na)NbO3 ferroelectric thin films 

      Vendrell Villafruela, Xavier; Raymond, Oscar; Ochoa Guerrero, Diego A.; García García, José Eduardo; Mestres, Lourdes (2015-02-27)
      Article
      Accés obert
      Lead-free (K,Na)NbO3 (KNN) and La doped (K,Na)NbO3 (KNN-La) thin films are grown on SrTiO3 substrates using the chemical solution deposition method. The effect of adding different amounts of Na and K excess (0-20 mol%) is ...
    • Effects of gravity level on bubble formation and rise in low-viscosity liquids 

      Suñol Galofre, Francesc Xavier; González Cinca, Ricardo (2015-05-15)
      Article
      Accés obert
      We present an experimental analysis of the effects of gravity level on the formation and rise dynamics of bubbles. Experiments were carried out with millimeter-diameter bubbles in the hypergravity environment provided by ...
    • Mixing efficiency across Rayleigh-Taylor and Richtmeyer-Meshkov fronts 

      Redondo Apraiz, José Manuel; Lopez Gonzalez-Nieto, Pilar; Cano Marchante, Jose Leandro; Andrés Garzón, Germán (World Scientific Publishing, 2015-06-03)
      Article
      Accés obert
      Mixing generated by gravitational acceleration and the role of local turbulence measured through multifractal methods is examined in numerical experiments of Rayleigh-Taylor and Richtmyer-Meshkov driven front occurring ...
    • An experimental-computer modeling study of inorganic phosphates surface adsorption on hydroxyapatite particles 

      Rivas Cañas, Manuel; Casanovas Salas, Jordi; Valle Mendoza, Luis Javier del; Bertran Cànovas, Òscar; Revilla López, Guillermo; Turón Dols, Pau; Puiggalí Bellalta, Jordi; Alemán Llansó, Carlos (Royal Society of Chemistry, 2015-01-01)
      Article
      Accés obert
      The adsorption of orthophosphate, pyrophosphate, triphosphate and a trisphosphonate onto hydroxyapatite has been examined using experiments and quantum mechanical calculations. Adsorption studies with FTIR and X-ray ...
    • Dynamics of axially localized states in Taylor-Couette flows 

      López Alonso, José Manuel; Marqués Truyol, Francisco (2015-05-15)
      Article
      Accés obert
      We present numerical simulations of the flow confined in a wide gap Taylor-Couette system, with a rotating inner cylinder and variable length-to-gap aspect ratio. A complex experimental bifurcation scenario differing from ...
    • Dynamics of shoreface-connected and inactive sand ridges on a shelf, Part 2: The role of sea level rise and associated changes in shelf geometry 

      Nnafie, Abdel; de Swart, Huib E.; Calvete Manrique, Daniel; Garnier, Roland Charles (2015-08)
      Article
      Accés obert
      Many inner continental shelves are characterized by the presence of large rhythmic bedforms, such as shoreface-connected ridges and the more offshore located sand ridges, which have heights of several meters and are spaced ...
    • Snow bands over the Gulf of Finland in wintertime 

      Mazón Bueso, Jordi; Niemelä, Sami; Pino González, David; Savijärvi, Hannu; Vihma, Timo (2015-01-16)
      Article
      Accés obert
      Large shore-parallel, quasi-stationary snow bands are occasionally observed over the Gulf of Finland during wintertime when the sea is not frozen. On the basis of Weather Research and Forecasting mesoscale model experiments ...
    • Magnetoelectric response in (1-x)PbZr0.65Ti0.35O3-xBaFe(12)O(19) multiferroic ceramic composites 

      Guerra, Jose D. S.; Betal, Soutik; Pal, Madhuparna; García García, José Eduardo; Oliveira, Adilson J. A; M'Peko, Jean-Claude; Hernandes, Antonio Carlos; Guo, Ruyan; Bhalla, Amar S. (2015-05-01)
      Article
      Accés obert
      The magnetoelectric (ME) properties of PbZr0.65Ti0.35O3-BaFe12O19 (PZT-BaM) multiferroic ceramic composites have been investigated in this work. These materials, containing both the ferroelectric PZT and ferrimagnetic BaM ...
    • Economically feasible energy refurbishment of prefabricated building in Belgrade, Serbia 

      Matic, Dubravka; Roset Calzada, Jaime; Eric, Milos; Babin, Mihajlo (2015-07-01)
      Article
      Accés obert
      The main objective of the presented paper was to evaluate the integrated design strategies applied in refurbishment of the prefabricated residential housing, erected in '70 in the New Belgrade, Serbia, in order to achieve ...
    • Spiral instability can drive thermonuclear explosions in binary white dwarf mergers 

      kashyap, Rahul; Fisher, Robert T.; García-Berro Montilla, Enrique; Aznar Siguan, Gabriela; Ji, Suoqing; Lorén Aguilar, Pablo (2015-02-10)
      Article
      Accés obert
      Thermonuclear, or Type Ia supernovae (SNe Ia), originate from the explosion of carbon-oxygen white dwarfs, and serve as standardizable cosmological candles. However, despite their importance, the nature of the progenitor ...
    • Cardiac contraction induces discordant alternans and localized block 

      Radszuweit, M.; Álvarez Lacalle, Enrique; Bär, Markus; Echebarría Domínguez, Blas (2015-02-04)
      Article
      Accés obert
      In this paper we use a simplified model of cardiac excitation-contraction coupling to study the effect of tissue deformation on the dynamics of alternans, i.e., alternations in the duration of the cardiac action potential, ...
    • Shape memory alloys as an effective tool to damp oscillations: study of the fundamental parameters required to guarantee technological applications 

      Torra Ferré, Vicenç; Isalgué Buxeda, Antonio; Lovey, Francisco Carlos; Sade, M. (2015-03-01)
      Article
      Accés obert
      The SMA was studied for their macroscopic application in damping for civil engineering. The study is a synthesis and includes an outline of the models required for the SMA simulation and some case studies using the finite ...