Exploració per tema "Diffusion"

Ara es mostren els items 1-20 de 74

    • 3D-printing and computational fluid dynamics "meet" paperbased microfluidics for enhanced flow control in difusive sensors 

      López Martínez, Joan Antoni; Fernández, Pau; Mehrdel, Pouya; Casals Terré, Jasmina (2020)
      Comunicació de congrés
      Accés restringit per política de l'editorial
      This paper proposes combination of a 3D printed cartridge and paper-based microfluidic design that minimizes the amount of sample required to achieve the best control over the diffusion Y-microfluidic mixers. The use of ...

    • A fractal model to describe the evolution of multiphase flow properties during mineral dissolution 

      Guarracino, Luis; Roetting, Tobias Stefan; Carrera Ramírez, Jesús (Elsevier, 2014-05-01)
      Article
      Accés restringit per política de l'editorial
      Understanding the changes in multiphase flow parameters caused by mineral dissolution-precipitation is required for multiple applications ranging from geological storage of CO2, enhanced geothermal energy production or ...

    • A new general method to compute dispersion errors on Cartesian stretched meshes for both linear and non-linear operators 

      Ruano Pérez, Jesús; Baez Vidal, Aleix; Rigola Serrano, Joaquim; Trias Miquel, Francesc Xavier (2022-02-01)
      Article
      Accés restringit per política de l'editorial
      The present article presents a new analysis for the dispersion error and the methodology to evaluate it numerically. Here we present the spectral properties of several convective schemes, including non-linear ones, on ...

    • A robust comparison of dynamical scenarios in a glass-forming liquid 

      Vispa, Alessandro; Busch, Sebastian; Tamarit Mur, José Luis; Unruh, Tobias; Fernandez-Alonso, Felix; Pardo Soto, Luis Carlos (2016-02-07)
      Article
      Accés obert
      We use Bayesian inference methods to provide fresh insights into the sub-nanosecond dynamics of glycerol, a prototypical glass-forming liquid. To this end, quasielastic neutron scattering data as a function of temperature ...

    • A survey on modulation techniques in molecular communication via diffusion 

      Kuran, Mehmet Sükrü; Yilmaz, Hüseyin Birkan; Demirkol, Ilker Seyfettin; Farsad, Nariman; Goldsmith, Andrea (Institute of Electrical and Electronics Engineers (IEEE), 2020-12-31)
      Article
      Accés obert
      This survey paper focuses on modulation aspects of molecular communication, an emerging field focused on building biologically-inspired systems that embed data within chemical signals. The primary challenges in designing ...

    • An Integrated Information System to Support Supply Chain Management & Performance in SMEs 

      Budiarto, Dekeng Setyo; Prabowo, Muhammad Agung; Herawan, Tutut (OmniaScience, 2017-05)
      Article
      Accés obert
      Purpose: This study aims to examine the relation between the level of supply chain management (SCM) adoption and small & medium enterprises (SMEs) performance. SCM adoption level it is expected to facilitate SMEs in ...

    • Analysis of the equations governing the motion of a degrading elastic solid due to diffusion of a fluid 

      Quintanilla de Latorre, Ramón; Rajagopal, Kumbakonam (2014-10)
      Article
      Accés obert
      Degradation of solids bearing load due to the infusion of moisture when exposed to the environment can leads to a decrease in their load carrying capacity and can also lead to the failure of the body from performing its ...

    • Analytical approach to sorting in periodic and random potentials 

      Gleeson, James P.; Sancho, Jose Maria; Lacasta Palacio, Ana María; Lindenberg, K. (American Physical Society, 2006-04-17)
      Article
      Accés obert
      There has been a recent revolution in the ability to manipulate micrometer-sized objects on surfaces patterned by traps or obstacles of controllable configurations and shapes. One application of this technology is to ...

    • Análisis cinético y matemático de la tintura de tencel con colorantes directos 

      Lis Arias, Manuel José; Valldeperas Morell, José; Carrillo Navarrete, Fernando; Navarro Viciana, Juan Antonio (2006-07)
      Article
      Accés obert
      En un intento de cuantificar el comportamiento tintóreo de la fibra Tencel con colorantes directos, se propone un enfoque por mecanismos que permite realizar un análisis del proceso desde dos puntos de vista: Cinético y ...

    • Black-Scholes differential equation and its development 

      Duaso Bellido, Mireia (Universitat Politècnica de Catalunya, 2015-07)
      Treball Final de Grau
      Accés restringit per decisió de l'autor
      L'equació de Black-Scholes és una equació en derivades parcials (EDP) de tipus difusió. Aquest model introdueix que els increments de l'actiu subjacent segueixen un moviment Brownià. És un mètode eficient per calcular el ...

    • Càlcul de la difusió intraocular a partir de la MTF per diferents dimensions de la imatge de doble pas 

      Ferrer Borràs, Oriol (Universitat Politècnica de Catalunya, 2014-06-30)
      Treball Final de Grau
      Accés obert
      Actualment existeix molta recerca pel què fa a l’estudi de la qualitat de la imatge retinal ja que, dels passos que intervenen en la visió, és l’únic de moment que podem millorar. Aquesta qualitat es veu afectada per les ...

    • Chemical and nanoindentation study of diffusion during sintering of 12Ce-ZrO2/3Y-ZrO2 powder layers 

      Roa Rovira, Joan Josep; Turón Viñas, Miquel; Tovar Vargas, Daniela; Ledesma, J.; Anglada Gomila, Marcos Juan (2018-02-01)
      Article
      Accés restringit per política de l'editorial
      Tetragonal zirconia polycrystals doped with 3% mol of yttria (3Y-ZrO2) exhibit excellent mechanical properties and biocompatibility. However, under humid environments, their surface structural integrity is degraded by aging ...

    • Colonización de la Galaxia por una civilización extraterrestre tecnológicamente avanzada 

      Rodríguez Mota, Adrián (Universitat Politècnica de Catalunya, 2019-10-31)
      Treball Final de Grau
      Accés obert
      Con el descomunal tamaño del universo y la cantidad de planetas que hay, es muy extraño que no hayamos tenido evidencias claras de vida extraterrestre en todo el periodo de existencia de la humanidad. En este proyecto se ...

    • Combinatorial investigation of Al–Cu intermetallics using small-scale mechanical testing 

      Xiao, Yuan; Besharatloo, Hossein; Gan, Bin; Maeder, Xavier; Spolenak, Ralph; Wheeler, J.M. (2020-05-05)
      Article
      Accés obert
      In the past two decades, small-scale mechanical testing has become ubiquitous for mechanical measurements, offering new opportunities to quantitatively probe the mechanical behavior of materials. In this study, we applied ...

    • Comment on "Diffusion on solif surfaces: anomalous is normal"-Reply 

      Sancho, Jose Maria; Lacasta Palacio, Ana María; Lindenberg, K.; Sokolov, Igor M.; Romero, A. H. (Americah Physical Society, 2005-05-12)
      Article
      Accés obert

    • Compact thermo-diffusion based physical memristor model 

      Fyrigos, Iosif-Angelos; Chatzinikolaou, Theodoros Panagiotis; Ntinas, Vasileios; Kitsios, Stavros; Bousoulas, Panagiotis; Tsompanas, Michael-Antisthenis; Tsoukalas, Dimitris; Adamatzky, Andrew; Rubio Sola, Jose Antonio; Sirakoulis, Georgios Ch. (Institute of Electrical and Electronics Engineers (IEEE), 2022)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      The threshold switching effect is critical in memristor devices for a range of applications, from crossbar design reliability to simulating neuromorphic features using artificial neural networks. The rich inherit dynamics ...

    • Comparison of drop evaporation models on hot surface 

      González Esteve, Adrià (Universitat Politècnica de Catalunya / Politecnico di Milano, 2014)
      Treball Final de Grau
      Accés obert
      Realitzat a/amb:   Politecnico di Milano
      This project is a study of how a sessile drop evaporates on a hot surface. Some existing models of droplet evaporation are explained, understood, simulated and compared. This project also provides an expression of drop ...

    • Composition, nanostructure, and optical properties of silver and silver-copper lusters 

      Pradell Cara, Trinitat; Pavlov, R.S.; Gutiérrez Repiso, Carolina; Climent Font, Aurelio; Molera Marimon, Judit (American Institute of Physics (AIP), 2012-09-01)
      Article
      Accés obert
      Lusters are composite thin layers of coinage metal nanoparticles in glass displaying peculiar optical properties and obtained by a process involving ionic exchange, diffusion, and crystallization. In particular, the origin ...

    • Controllable coherent backscattering of light in disordered media filled with liquid crystal 

      Trull Silvestre, José Francisco; Cuevas, Marc; Salud Puig, Josep; Cojocaru, Crina; López Pérez, David Orencio (2018-05-09)
      Article
      Accés obert
      We have investigated multiple scattering of light in a disordered system based on liquid crystals for a temperature-controllable random laser. Coherent backscattering measurements at several temperatures have been well ...

    • Correlació de la mesura de la difusió intraocular a partir de l'anàlisi de les imatges de doble pas amb les aberracions oculars en pacients amb cataractes 

      Sintes Villalonga, Ruth (Universitat Politècnica de Catalunya, 2018-06-27)
      Treball Final de Grau
      Accés obert
      Propòsit: Avaluar clínicament la correlació entre la difusió intraocular (DIO) i les aberracions oculars (ABO) mitjançant l’anàlisi de les imatges de doble pas (DP) en ulls amb cataractes. Metodologia: L’estudi va comptar ...