Mostrando ítems 721-740 de 890

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      Phosphogypsum amendments and irrigation with acidulated water affect tomato nutrition in reclaimed marsh soils from SW Spain 

      Quintero Ariza, José Manuel; Enamorado Báez, Santiago Miguel; Más Balbuena, José Luis; Abril Hernández, José María; Polvillo Polo, Oliva; Delgado García, Antonio (Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria (INIA), 2014)
      Phosphogypsum (PG) is a by-product of the P fertilizer industry usually valorised as amendment for acidic and sodic soils. ...
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      Approximation of solitons in the discrete NLS equation 

      Cuevas-Maraver, Jesús; James, Guillaume; Kevrekidis, Panayotis G.; Malomed, Boris A.; Sánchez-Rey, Bernardo (World Scientific, 2008)
      We study four diferent approximations for finding the profile of discrete solitons in the one-dimensional Discrete Nonlinear ...
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      Discrete breathers for understanding reconstructive mineral processes at low temperatures 

      Archilla, Juan F. R.; Cuevas-Maraver, Jesús; Alba, María D.; Naranjo Muñoz, Moisés; Trillo de Leyva, José María (American Chemical Society, 2006)
      Reconstructive transformations in layered silicates need a high temperature in order to be observed. However, very recently, ...
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      Influence of moving breathers on vacancies migration 

      Cuevas-Maraver, Jesús; Katerji, C.; Archilla, Juan F. R.; Eilbeck, J. Chris; Russell, F. Michael (Elsevier, 2003)
      A vacancy defect is described by a Frenkel-Kontorova model with a discommensuration. This vacancy can migrate when interacts ...
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      Soliton stability criterion for generalized nonlinear Schrödinger equations 

      Quintero, Niurka R.; Mertens, Franz G.; Bishop, Alan R. (American Physical Society, 2015)
      A stability criterion for solitons of the driven nonlinear Schrödinger equation (NLSE) has been conjectured. The criterion ...
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      General approach for dealing with dynamical systems with spatiotemporal periodicities 

      Casado Pascual, Jesús; Cuesta, José A.; Quintero, Niurka R.; Álvarez Nodarse, Renato (American Physical Society, 2015)
      Dynamical systems often contain oscillatory forces or depend on periodic potentials. Time or space periodicity is reflected ...
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      La mentoría en la Escuela Universitaria Politécnica de la Universidad de Sevilla 

      Ruiz Domínguez, Manuela; Bachiller-Soler, Alfonso; Cordobés Carmona, Felipe; Durán-Barrantes, María de la Montaña; Gómez-Alós, Milagros; Jiménez Jiménez, María Nieves; Lebrón Rueda, Esperanza Angustias; López Vázquez, Jorge Jesús; Miró Amarante, Gloria; Morón Romero, María del Carmen; Romero Rodríguez, Soledad; Sánchez Gómez, Ana Beatriz; Santana Hidalgo, Amalia (Universidad de Cantabria, 2010-07)
      Con el fin de integrar a los alumnos de nuevo ingreso, la Escuela Universitaria Politécnica de la Universidad de Sevilla ...
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      Protagonismo del mentor en una actividad tutorial de carácter multidisciplinar en Ingeniería 

      Durán-Barrantes, María de la Montaña; Ager Vázquez, Francisco José; Bachiller-Soler, Alfonso; Bravo-Rodríguez, Juan Carlos; Cordobés Carmona, Felipe; Gasch Illescas, Consolación; Gómez-Alós, Milagros; Jiménez Jiménez, María Nieves; Lebrón Rueda, Esperanza Angustias; López Vázquez, Jorge Jesús; Miró Amarante, Gloria; Morón Romero, María del Carmen; Romero Rodríguez, Soledad; Ruiz Domínguez, Manuela; Sánchez Gómez, Ana Beatriz; Santana Hidalgo, Amalia; Sepúlveda Ferrer, Ranier Enrique (2011-07)
      En la Escuela Politécnica Superior (EPS) de la Universidad de Sevilla se ha trabajado, por tercer curso consecutivo, en ...
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      Stochastic resonance in finite arrays of bistable elements with local coupling 

      Morillo Buzón, Manuel; Gómez-Ordóñez, José; Casado Vázquez, José Manuel; Casado Pascual, Jesús; Cubero Gómez, David (EDP Sciences ; Springer Verlag ; Societá Italiana di Fisica, 2009)
      In this article, we investigate the stochastic resonance (SR) effect in a finite array of noisy bistable systems with ...
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      Molecular modeling and electron transport in polyethylene 

      Wang, Yang; Wu, Kai; Cubero Gómez, David; Quirke, Nick (Institute of Electrical and Electronics Engineers (IEEE), 2014)
      Polyethylene is commonly used as an insulator for AC power cables. However it is known to undergo chemical and physical ...
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      Electronic states for excess electrons in polyethylene compared to long-chain alkanes 

      Cubero Gómez, David; Quirke, Nick; Coker, David F. (Elsevier, 2003)
      We use a pseudopotential model to calculate the electronic states available to an excess electron in crystalline and ...
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      Breathers in a system with helicity and dipole interaction 

      Sánchez-Rey, Bernardo; Archilla, Juan F. R.; Palmero Acebedo, Faustino; Romero Romero, Francisco (American Physical Society, 2002)
      Recent papers that have studied variants of the Peyrard-Bishop model for DNA, have taken into account the long range ...
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      Overdamped deterministic ratchets driven by multifrequency forces 

      Cubero, David; Casado Pascual, Jesús; Álvarez Chillida, María Azucena; Morillo Buzón, Manuel; Hänggi, Peter (Jagellonian University, Cracow, 2006)
      We investigate a dissipative, deterministic ratchet model in the overdamped regime driven by a rectangular force. Extensive ...
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      Resonant behavior of a Poisson process driven by a periodic signal 

      Brey Abalo, José Javier; Casado Pascual, Jesús; Sánchez-Rey, Bernardo (American Physical Society, 1995)
      The statistical properties of the residence times of a periodically modulated Poisson process (time-dependent shot noise) ...
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      Glassy behavior in a simple model with entropy barriers 

      Prados Montaño, Antonio; Brey Abalo, José Javier; Sánchez-Rey, Bernardo (American Physical Society, 1997)
      We study the dynamical behavior of a system with a variable number of particles n. The empty state n=0 is the ground state, ...
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      Simple model with facilitated dynamics for granular compaction 

      Brey Abalo, José Javier; Prados Montaño, Antonio; Sánchez-Rey, Bernardo (American Physical Society, 1999)
      A simple lattice model is used to study compaction in granular media. As in real experiments, we consider a series of taps ...
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      Self-diffusion in freely evolving granular gases 

      Brey Abalo, José Javier; Ruiz Montero, María José; Cubero Gómez, David; García Rojo, Ramón (American Institute of Physics, 1994)
      A self-diffusionequation for a freely evolving gas of inelastic hard disks or spheres is derived starting from the ...
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      Single electron states in polyethylene 

      Wang, Yang; MacKernan, D.; Cubero Gómez, David; Coker, David F.; Quirke, Nick (American Institute of Physics, 2014)
      We report computer simulations of an excess electron in various structural motifs of polyethylene at room temperature, ...
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      Exact numerical solutions for dark waves on the discrete nonlinear Schrödinger equation 

      Sánchez-Rey, Bernardo; Johansson, Magnus (American Physical Society, 2005)
      In this paper we study numerically existence and stability of exact dark waves on the (nonintegrable) discrete nonlinear ...
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      Fourier state of a fluidized granular gas 

      Brey Abalo, José Javier; Cubero Gómez, David; Moreno Franco, Francisco; Ruiz Montero, María José (European Physical Society, 2001)
      It is shown that the Boltzmann equation for smooth inelastic hard disks or spheres admits a solution describing a steady ...