Ara es mostren els items 1-20 de 102

  • A comparative molecular dynamics study of sulfuric and methanesulfonic acids 

    Canales Gabriel, Manel; Guàrdia Manuel, Elvira (2016-12-01)
    Article
    Accés restringit per política de l'editorial
    The molecular dynamics computer simulation method has been used to study sulfuric and methanesulfonic acids. Calculations have been carried out between 200 K and 400 K using reliable force fields. Thermodynamic properties, ...
  • A consistent methodology to characterize BAW resonators 

    Rocas Cantenys, Eduard; Collado Gómez, Juan Carlos; Aigner, Robert; Mateu Mateu, Jordi; Hueltes Escobar, Alberto; Booth, James C. (2012)
    Text en actes de congrés
    Accés restringit per política de l'editorial
    We present a methodology to characterize BAW resonators both linearly and nonlinearly. The procedure uses physical modeling along with measurements that exploit different manifestations of the nonlinear phenomena to ...
  • Activity driven modeling of time varying networks 

    Perra, N.; Gonçalves, B.; Pastor Satorras, Romualdo; Vespignani, Alessandro (2012-06-25)
    Article
    Accés restringit per política de l'editorial
    Network modeling plays a critical role in identifying statistical regularities and structural principles common to many systems. The large majority of recent modeling approaches are connectivity driven. The structural ...
  • A filtered kinetic energy preserving finite volumes scheme for compressible flows 

    Baez Vidal, Aleix; Lehmkuhl Barba, Oriol; Pérez Segarra, Carlos David; Oliva Llena, Asensio (2012)
    Text en actes de congrés
    Accés obert
    The Kinetic Energy Preserving Scheme (KEP) for compressible flows has been shown to solve 1-D shock waves without smearing them. The method does not add numerical diffusion to solutions but, as a counterpart, it needs ...
  • Anàlisis d’una incineradora de RSU amb aprofitament de l'energia generada 

    Martí Tubert, Marcel (Universitat Politècnica de Catalunya, 2015-01)
    Treball Final de Grau
    Accés obert
    Històricament desfer-se de les deixalles sempre havia resultat un problema. Usualment s’utilitzaven els abocadors o s’enterraven sota terra però en ambdós casos la seva afectació tant per la natura com per la població no ...
  • Análisis exergético de bienes de equipo 

    Orellana Abreu, Andrea (Universitat Politècnica de Catalunya, 2009-09)
    Projecte/Treball Final de Carrera
    Accés obert
    El análisis exergético es una metodología que permite analizar los mecanismos básicos de la eficiencia exergética de cualquier sistema, mediante la aplicación de las leyes de la termodinámica. Por ello, es considerada ...
  • Analysis of a set of modi cation proposals of Ascó's Nuclear Power Plant Cooling Towers 

    González Escudero, Francisco de Borja (Universitat Politècnica de Catalunya, 2014-02)
    Projecte Final de Màster Oficial
    Accés restringit per decisió de l'autor
    The electrical production of a Nuclear Power Plant depends on the performance of the Circulating Water System, which works removes the residual heat of the plant according to regulations. Owing to the old age of Ascó's ...
  • A new shoreline instability mechanism related to high-angle waves 

    Kakeh Burgada, Nabil; Falqués Serra, Albert; Calvete Manrique, Daniel (2017)
    Comunicació de congrés
    Accés obert
    The alongshore wave driven sediment transport can render a rectilinear coastline unstable in case of very oblique wave incidence.
  • An innovative natural air-cooling system technique for temperature-rise suppression on the permanent magnet synchronous machines 

    Asef, Pedram; Bargalló Perpiñá, Ramón; Barzegaran, M.R. (2018-01)
    Article
    Accés obert
  • An integrated view of theiInfluence of temperature, pressure, and humidity on the stability of trimorphic cysteamine hydrochloride 

    Gana, Inès; Barrio Casado, María del; Ghaddar, Carine; Nicolai, Beatrice; Do, Bernard; Tamarit Mur, José Luis; Safta, Fathi; Rietveld, Ivo B. (2015-07-01)
    Article
    Accés obert
    Understanding the phase behavior of pharmaceuticals is important for dosage form development and regulatory requirements, in particular after the incident with ritonavir. In the present paper, a comprehensive study of the ...
  • A non-extensive maximum entropy based regulations method for bad conditioned inverse problems 

    Rebollo Neira, Laura; Fernández Rubio, Juan Antonio; Plastino, Angel Luís (1998-01)
    Article
    Accés obert
    A regularization method based on the non-extensive maximum entropy principle is devised. Special emphasis is given to the q=1/2 case. We show that, when the residual principle is considered as constraint, the q=1/2 generalized ...
  • A suitable criterion for tube sizing in reverse cycle machines 

    Rivero Vilà, Oriol del (Universitat Politècnica de Catalunya / Université de Lorraine, 2011)
    Projecte/Treball Final de Carrera
    Accés obert
    To find the optimal diameters for the connecting tubes in reverse cycle machines we use in this paper a new criterion that we have recently developed, the Ecological Cost, “EC" (Kheiri et al. 2011) EC includes the environmental ...
  • Benzocaine polymorphism: Pressure-temperature phase diagram involving forms II and III 

    Gana, Inès; Barrio Casado, María del; Do, Bernard; Tamarit Mur, José Luis; Céolin, René; Rietveld, Ivo B. (2013-11-18)
    Article
    Accés restringit per política de l'editorial
    tUnderstanding the phase behavior of an active pharmaceutical ingredient in a drug formulation isrequired to avoid the occurrence of sudden phase changes resulting in decrease of bioavailability in amarketed product. ...
  • Chicken feather fibres waste as a low-cost biosorbent of acid Blue 80 dye 

    García Sabido, Daniel; López Mesas, Montserrat; Carrillo Navarrete, Fernando (2016)
    Article
    Accés restringit per política de l'editorial
    Chicken feathers (CFs), waste from the poultry industry, were tested as biosorbent for colour removal of synthetic coloured water. Biosorption kinetics and isotherms were determined to provide an explanation to the ...
  • Comparison of a size-dependent model for the latent heat of small tin nanoparticles 

    González Esteve, Adrià (Universitat Politècnica de Catalunya, 2016-07)
    Projecte Final de Màster Oficial
    Accés obert
    The classical formulation for the Stefan problem at the nanoscale does not work because the melting temperature and the effective latent heat decrease with the nanoparticle size. In this work, a model for the effective ...
  • Competing activation mechanisms in epidemics on networks 

    Castellano, Claudio; Pastor Satorras, Romualdo (2012-04-20)
    Article
    Accés restringit per política de l'editorial
    In contrast to previous common wisdom that epidemic activity in heterogeneous networks is dominated by the hubs with the largest number of connections, recent research has pointed out the role that the innermost, dense ...
  • Computational fluid dynamics modeling of impinging gas-jet systems: II. Application to an industrial cooling system device 

    Coussirat Núñez, Miguel Gustavo; van Beeck, J; Mestres Ridge, Marc; Egusquiza Estévez, Eduard; Buchlin, J-M; Valero Ferrando, Ma. del Carmen (2005-07-15)
    Article
    Accés restringit per política de l'editorial
    A numerical analysis of the flow behavior in industrial cooling systems based on arrays of impinging jets has been performed, using several eddy viscosity models to determine their modeling capabilities. For the cooling ...
  • Conformational diversity in contryphans from conus venom: Cis-trans isomerisation and aromatic/proline interactions in the 23-membered ring of a 7-residue peptide disulfide loop 

    Sonti, Rajesh; Gowd, Konkallu Hanumae; Rao, K. N Shashanka; Ragothama, Srinivasarao; Rodríguez García, Alejandro; Pérez González, Juan Jesús; Balaram, Padmanabhan (2013-11-05)
    Article
    Accés restringit per política de l'editorial
    Conformational diversity or “shapeshifting” in cyclic peptide natu- ral products can, in principle, confer a single molecular entity with the proper- ty of binding to multiple receptors. Conformational equilibria have ...
  • Convergence to steady-state and boundary layer profiles in a linear chromatography system 

    Menacho, Joaquín; Solà-Morales Rubió, Joan de (2015-01-01)
    Article
    Accés restringit per política de l'editorial
    We study the hyperbolic system of equations of the so-called linear transport model in a true moving bed chromatography device with four ports. By using methods based on a suitable energy functional we show that all solutions ...
  • Creació del model "Roman Pot Thermal Model" amb un sistema de refrigeració per a l'experiment del TOTEM 

    Felip Hernando, Montserrat (Universitat Politècnica de Catalunya, 2006-06)
    Projecte/Treball Final de Carrera
    Accés obert