Browsing by Author "XX677384"

Now showing items 1-7 of 7

    • Asymptotic Description of a Viscous Fluid Layer 
      Cerda, Enrique; Rojas Cortés, René; Tirapegui Zurbano, Enrique (2000)
      We prove that the exact non local equation derived by the present authors for the temporal linear evolution of the surface of a viscous incompressible fluid reduces asymptotically for high viscosity to a second order ...
    • Ethylene polymerization using dealuminated ZSM-2 zeolite nanocrystals as an active metallocene catalyst support 
      Covarrubias Gallardo, Cristián; Quijada Abarca, Juan; Rojas Cortés, René (ELSEVIER, 2008-09-15)
      The preparation of dealuminated (DEAL) ZSM-2 zeolite nanocrystals for use as an active metallocene polymerization catalyst support is presented. The DEAL-ZSM-2 zeolite form was prepared by using steam treatment; metallocene ...
    • Fenómenos del forzamiento a alta frecuencia 
      Fernández Oto, Cristian Andrés (Universidad de Chile, 2012)
      El principal objetivo de esta tesis es estudiar diversos fenómenos generados a partir del forzamiento de alta frecuencia. Entre estos destacan: la resonancia paramétrica efectiva inducida por el forzamiento de alta frecuencia, ...
    • Frentes y Estructuras Localizadas en Sistemas Discretos y en Cristales Líquidos 
      Elías Moreno, Ricardo Gabriel (Universidad de ChilePrograma Cybertesis, 2009)
      En esta tesis se estudian los frentes y las estructuras localizadas en sistemas conformados por una gran cantidad de pequeños subsistemas idénticos acoplados entre sí, los cuales son descritos en términos de ecuaciones ...
    • Nickel pre-catalysts bearing [(N)-imidoylamidine] ligands; influence of the presence of pyridine and ... 
      Peoples, Brian C.; Vega, Gala De la; Valdebenito, Carolina; Quijada Abarca, Juan; Ibañez, Andrés; Valderrama, Mauricio; Rojas Cortés, René (Elsevier, 2012)
      In this contribution the synthesis and polymerization activity of the nickel complexes [NiBr2{N0-(2,6- diisopropylphenyl)-N-[1-(2,6-diisopropylphenylimine)ethyl]-N-(2,3,4,5,6-pentafluorophenyl)acetam idine}] (2), ...
    • Substituted cyclopentadienylchromium(III) complexes containing neutral donor ligands. Synthesis, crystal ... 
      Rojas Cortés, René; Valderrama, Mauricio; Garland, María Teresa (ELSEVIER SCIENCE SA, 2004-06-15)
      Lithium derivatives of substituted cyclopentadiene ligands reacted with CrCl3(THF)(3) in THF solution to afford homodinuclear complexes of the type [{(eta(5)-RCp)CrCl(p-Cl)}2] [R = SiMe3 (1), CH2C(Me)CH2 (2)]. Complex 1 ...
    • Transversal interface dynamics of a front connecting a stripe pattern to a uniform state 
      Clerc Gavilán, Marcel; Escaff, Daniel; Rojas Cortés, René (EDP SCIENCES S A, 2008)
      Interfaces in two-dimensional systems exhibit unexpected complex dynamical behaviors, the dynamics of a border connecting a stripe pattern and a uniform state is studied. Numerical simulations of a prototype isotropic ...