Now showing items 1-15 of 15

  • Determinación de la actividad antioxidante de pétalos comestibles 

    Rodriguez Luna, Maria (Universitat Politècnica de Catalunya, 2009-01-12)
    Master thesis (pre-Bologna period)
    Open Access
    A partir de los años ochenta se ha mostrado un gran interés por las flores en aplicaciones de alimentación, especialmente en las sociedades que buscan experiencias culinarias novedosas. Las flores se pueden utilizar: en ...
  • Dielectric properties of liquid ethanol: a computer simulation study 

    Saiz, L; Guàrdia Manuel, Elvira; Padro Cardenas, Joan Angel (2000-08)
    Article
    Open Access
    Static and dynamic dielectric properties of liquidethanol have been studied as a function of the wave-vector number by computer simulation.Molecular dynamics simulations at room temperature have been performed using the ...
  • Dynamic simulation of pure hydrogen production via ethanol steam reforming in a catalytic membrane reactor 

    Hedayati, Ali; Le Corre, Oliver; Lacarriere, Bruno; Llorca Piqué, Jordi (2016-12-15)
    Article
    Open Access
    Ethanol steam reforming (ESR) was performed over Pd-Rh/CeO2 catalyst in a catalytic membrane reactor (CMR) as a reformer unit for production of fuel cell grade pure hydrogen. Experiments were performed at 923 K, 6–10 bar, ...
  • Efectes de les concentracions de glucosa i etanol inicials en el creixement de Saccharomyces cerevisiae 

    Cañadillas Castells, Jordi (Universitat Politècnica de Catalunya, 2014-02-10)
    Bachelor thesis
    Restricted access - author's decision
    Saccharomyces cerevisiae Is one of the most used microorganisms to the alimentary industry. To optimise the process of fermentation is necessary to know the parameters that impact in his growth in order to modulate the ...
  • Experimental study of 2-methoxyethanol steam reforming in a membrane reactor for pure hydrogen production 

    Hedayati, Ali; Llorca Piqué, Jordi (2017-02-15)
    Article
    Open Access
    For the first time, 2-methoxyethanol (C3H8O2) was used for producing pure hydrogen in a catalytic membrane reactor (CMR) via steam reforming (SR). The SR experiments were performed at 923 K and 1–10 bar using a mixture of ...
  • Germinació de llavors de Digitaria sanguinalis: paper de les cobertes i requeriments tèrmics 

    Ros Freixedes, Roger (Universitat Politècnica de Catalunya, 2008-07-07)
    Master thesis (pre-Bologna period)
    Open Access
    S’han estudiat els principals factors que condicionen la germinació de les llavors de la mala herba Digitaria sanguinalis (forcadella): el paper de les cobertes de la llavor en l’estat de latència i els requeriments ...
  • Influència de l'etanol i de la glucosa en l'activació bacteriana, i de la densitat de població en el procés d'acetificació 

    Carbó Moliner, Rosa; Oms, M.; Palma, Y.; Pujolà Cunill, Montserrat (2001)
    Article
    Open Access
  • Medidor de etanol 

    Martínez Mora, Rubén; Reguilón García, Joaquín (Universitat Politècnica de Catalunya, 2007-01)
    Master thesis (pre-Bologna period)
    Restricted access - author's decision
    Medir la concentración en el aire, para ello deberemos de linealizar la salida del sensor en este caso un Figaro TGS822 para poder tratarla. Estudiaremos posibles alternativas a los ya conocidos sistemas antilogarítmicos, ...
  • Modelització i control d'un reformador d'etanol amb vapor 

    Pérez Contreras, Eloi (Universitat Politècnica de Catalunya, 2015-09)
    Master thesis (pre-Bologna period)
    Open Access
    En el Projecte Final de Carrera (PFC) que es presenta a continuació, s’obté un nou disseny d’un controlador predictiu no lineal (NMPC: Nonlinear Model Predictive Control ) per a un reformador d’Etanol amb Vapor (ESR: Ethanol ...
  • Model Predictive Control for Ethanol Steam Reformers 

    Li, Mingming (Universitat Politècnica de Catalunya, 2014-06)
    Master thesis
    Restricted access - author's decision
    This thesis firstly proposes a new approach of modelling an ethanol steam reformer (ESR) for producing pure hydrogen. Hydrogen has obvious benefits as an alternative for feeding the proton exchange membrane fuel cells ...
  • Preparation of electrospun nanofibers from solutions of different gelatin types using a benign solvent mixture composed of water/PBS/ethanol 

    Erencia, Marisa; Cano Casas, Francesc; Tornero García, José Antonio; Macanás de Benito, Jorge; Carrillo Navarrete, Fernando (2016-03-01)
    Article
    Open Access
    The feasibility of using Phosphate Buffer Saline (PBS)/ethanol mixtures as a benign solvent to electrospin three types of gelatin was studied. Gelatins with different chemical properties, such as Bloom, were selected and ...
  • Producción de hidrógeno a partir de etanol en un catalizador micromonolítico de silicio 

    Irigoyen Hernández, Aitor (Universitat Politècnica de Catalunya, 2009-05)
    Master thesis (pre-Bologna period)
    Restricted access - author's decision
    Actualmente, la mayor parte del hidrógeno producido proviene de combustibles fósiles, fuentes de energía no renovables. Sin embargo, una manera prometedora de utilizar el etanol, que puede obtenerse por vías biológicas, ...
  • Producción de hidrógeno a partir de etanol y purificación con un catalizador de Au/TiO2 

    Moreno Porras, Nuria (Universitat Politècnica de Catalunya, 2011-04)
    Master thesis (pre-Bologna period)
    Open Access
    Uno de los principales objetivos de la ciencia y la ingeniería es el desarrollo de nuevas tecnologías para la obtención de energía de forma limpia y eficiente, es en ese sentido que el desarrollo de celdas de combustible ...
  • Reactions of ethanol over CeO2 and Ru/CeO2 catalysts 

    Mudiyanselage, K.; Al-Shankiti, I.; Foulis, A.; Llorca Piqué, Jordi; Idriss, H. (2016-11-15)
    Article
    Open Access
    The reaction of ethanol has been investigated on Ru/CeO2 in steady state conditions as well as with temperature programmed desorption (TPD). High resolution transmission electron microscopy (HRTEM) images indicated that ...
  • Structure and dynamics of liquid ethanol 

    Saiz, L; Padro Cardenas, Joan Angel; Guàrdia Manuel, Elvira (1997-01)
    Article
    Restricted access - publisher's policy
    Molecular dynamics simulations of liquid ethanol at four thermodynamic states ranging from T = 173 K to T = 348 K were carried out using the transferable OPLS potential model of Jorgensen (J. Phys. Chem. 1986, 90, 1276). ...