Now showing items 1-20 of 149

    • A comparative molecular dynamics study of sulfuric and methanesulfonic acids 

      Canales Gabriel, Manel; Guàrdia Manuel, Elvira (2016-12-01)
      Article
      Open Access
      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)
      Conference report
      Restricted access - publisher's policy
      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 ...
    • A new shoreline instability mechanism related to high-angle waves 

      Kakeh Burgada, Nabil; Falqués Serra, Albert; Calvete Manrique, Daniel (2017)
      Conference lecture
      Open Access
      The alongshore wave driven sediment transport can render a rectilinear coastline unstable in case of very oblique wave incidence.
    • A suitable criterion for tube sizing in reverse cycle machines 

      Rivero Vilà, Oriol del (Universitat Politècnica de Catalunya / Université de Lorraine, 2011)
      Master thesis (pre-Bologna period)
      Open Access
      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 ...
    • Activity driven modeling of time varying networks 

      Perra, N.; Gonçalves, B.; Pastor Satorras, Romualdo; Vespignani, Alessandro (2012-06-25)
      Article
      Restricted access - publisher's policy
      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 ...
    • 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
      Open Access
    • 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
      Open Access
      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 ...
    • Analisis termodinamico de los ciclos de rankine 

      Fuste Paredes, Sergi (Universitat Politècnica de Catalunya, 2015-04)
      Bachelor thesis
      Open Access
    • 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)
      Master thesis
      Restricted access - author's decision
      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 ...
    • Analysis of heat transfer and fluid flow in thermal equipment 

      Zhang, Lei (Universitat Politècnica de Catalunya, 2019-10-09)
      Master thesis
      Open Access
      Heat transfer and flow fluid in thermal equipment is a concerned and basic topic in thermal area. The main objective of this thesis is tocultivate basic skills of analyzing athermal problemand selecting an appropriate ...
    • Anàlisis d’una incineradora de RSU amb aprofitament de l'energia generada 

      Martí Tubert, Marcel (Universitat Politècnica de Catalunya, 2015-01)
      Bachelor thesis
      Open Access
      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)
      Master thesis (pre-Bologna period)
      Open Access
      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 ...
    • Asymptotic analysis of the Gunn effect with realistic boundary conditions 

      Bonilla, L. L.; Rodríguez Cantalapiedra, Inma; Gomila Lluch, Gabriel; Rubí Capaceti, José Miguel (The American Physical Society, 1997-08-31)
      Article
      Open Access
      A general asymptotic analysis of the Gunn effect in n-type GaAs under general boundary conditions for metal-semiconductor contacts is presented. Depending on the parameter values in the boundary condition of the injecting ...
    • 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
      Restricted access - publisher's policy
      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. ...
    • Beyond-Luttinger-liquid thermodynamics of a one-dimensional Bose gas with repulsive contact interactions 

      Rosi, Giulia de; Massignan, Pietro Alberto; Lewenstein, Maciej; Astrakharchik, Grigori (American Physical Society, 2019-11-07)
      Article
      Open Access
      We present a thorough study of the thermodynamics of a one-dimensional repulsive Bose gas, focusing in particular on corrections beyond the Luttinger-liquid description. We compute the chemical potential, pressure, and ...
    • 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
      Restricted access - publisher's policy
      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)
      Master thesis
      Open Access
      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
      Restricted access - publisher's policy
      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
      Restricted access - publisher's policy
      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
      Restricted access - publisher's policy
      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 ...