Recent Submissions

  • Langevin equation approach for slow dynamics in magnetic systems 

    Sancho, Jose Maria; Lacasta Palacio, Ana María; Torrent Serra, Maria del Carmen; García Ojalvo, Jordi; Tejeda Gómez, José Arturo (Elsevier Science, 1993)
    Article
    Restricted access - publisher's policy
    We present a magnetic model based on a Langevin equation which exhibits slow relaxation dynamics of ln(t) type. The system is composed of magnetic particles which are under the influence of a local potential and interact ...
  • Superior destabilization effects of LiBH4 with the addition of nano-sized nickel ferrite NiFe2O4 

    Zhang, Jun; Li, Ping; Wan, Qi; Zhai, Fuqiang; Volinsky, Alex A.; Qu, Xuanhui (2015-01-01)
    Article
    Open Access
    The introduction of a secondary compound, known as destabilization, is an effective way to improve the desorption performance of LiBH4. In this paper the effects of nano-sized nickel ferrite (NiFe2O4) on the hydrogen ...
  • Availability of crop by-products in Spain: new raw materials for natural thermal insulation 

    Palumbo Fernández, Mariana; Avellaneda Diaz-Grande, Jaime; Lacasta Palacio, Ana María (2015-06-01)
    Article
    Open Access
    Vegetal materials were one of the first construction materials used by humans, but the development of petrol-based synthetic materials in the last century replaced them in mainstream construction techniques. However, since ...
  • DA white dwarfs from the LSS-GAC survey DR1: the preliminary luminosity and mass functions and formation rate 

    Rebassa Mansergas, Alberto; Cojocaru, Elena Ruxandra; Torres, S.; García-Berro Montilla, Enrique; Liu, X.; Yuan, H-B.; Xiang, M.-X.; Huang, Y.; Koester, D.; Hou, Y.; Li, G.; Zhang, Y. (2015-06-11)
    Article
    Open Access
    Modern large-scale surveys have allowed the identification of large numbers of white dwarfs. However, these surveys are subject to complicated target selection algorithms, which make it almost impossible to quantify to ...
  • Aftershock sequences of three seismic crises at southern California, USA, simulated by a cellular automata model based on self-organized criticality 

    Monterrubio Velasco, Marisol; Lana Pons, Francisco Javier; Martínez Santafé, Maria Dolors (2015-03-01)
    Article
    Restricted access - confidentiality agreement
    Several properties of aftershock series related to the main shocks of Landers, Northridge and Hector Mine (southern California, USA) are reproduced by the Dynamic Fiber Bundle Model, DFBM. Optimum values for the three ...
  • Montaje experimental para el estudio de la mezcla generada por penachos turbulentos 

    Lopez Gonza, Pilar; Cano Marchante, Jose Leandro; Redondo Apraiz, José Manuel; Tijera, Manuel (Universidad Complutense de Madrid (UCM), 2009-09-01)
    Article
    Open Access
    Se presenta un sencillo modelo de laboratorio para generar mezcla turbulenta entre dos fluidos miscibles que están en una situación inicial inestable en un campo gravitatorio. El proceso de mezcla se genera por medio de ...
  • Amorphous carbon modified nano-sized tungsten carbide as a gas diffusion electrode catalyst for the oxygen reduction reaction 

    Liu, Zhiwei; Li, Ping; Zhai, Fuqiang; Wan, Qi; Volinsky, Alex A.; Qu, Xuanhui (2015-01-01)
    Article
    Open Access
    Nanostructured tungsten carbide with high surface area and containing amorphous carbon is prepared by a low temperature combustion synthesis method. The nanostructured tungsten carbide is used as the catalyst in a gas ...
  • Lifted temperature minimum during the atmospheric evening transition 

    Blay-Carreras, Estel; Pardyjak, Eric; Pino González, David; Hoch, Sebastian; Cuxart Rodamillans, Joan; Martínez, Daniel; Reuder, Joachim (2015-06-29)
    Article
    Open Access
    Observations of lifted temperature minimum (LTM) profiles in the nocturnal boundary layer were first reported in 1932. It was defined by the existence of a temperature minimum some centimetres above the ground. During the ...
  • Turbulence vertical structure of the boundary layer during the afternoon transition 

    Darbieu, Clara; Lohou, Fabienne; Lothon, Marie; Vilà Guerau de Arellano, Jordi; Couvreux, Fleur; Durand, Pierre; Pino González, David; Patton, Edward; Nilsson, Erik; Blay-Carreras, Estel; Gioli, Beniamino (2015-09-09)
    Article
    Open Access
    We investigate the decay of planetary boundary layer (PBL) turbulence in the afternoon, from the time the surface buoyancy flux starts to decrease until sunset. Dense observations of mean and turbulent parameters ...
  • Experimental study of heat transport in fractured network 

    Pastore, Nicola; Cherubini, claudia; Gassi, C.I.; Allegretti, N.M.; Redondo Apraiz, José Manuel; Tarquis Alfonso, Ana Maria (2015-07-01)
    Article
    Open Access
    Fractured rocks play an important role in transport of natural resources through subsurface systems. In recent years, interest has grown in investigating heat transport by means of tracer tests, driven by the important ...

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