Browsing by Subject "Diffusion"
Now showing items 1-20 of 47
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A fractal model to describe the evolution of multiphase flow properties during mineral dissolution
(Elsevier, 2014-05-01)
Article
Restricted access - publisher's policyUnderstanding 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 ... -
Análisis cinético y matemático de la tintura de tencel con colorantes directos
(2006-07)
Article
Open AccessEn 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 ... -
Analysis of the equations governing the motion of a degrading elastic solid due to diffusion of a fluid
(2014-10)
Article
Open AccessDegradation 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
(American Physical Society, 2006-04-17)
Article
Open AccessThere 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 ... -
An Integrated Information System to Support Supply Chain Management & Performance in SMEs
(OmniaScience, 2017-05)
Article
Open AccessPurpose: 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 ... -
A robust comparison of dynamical scenarios in a glass-forming liquid
(2016-02-07)
Article
Open AccessWe 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 ... -
Black-Scholes differential equation and its development
(Universitat Politècnica de Catalunya, 2015-07)
Bachelor thesis
Restricted access - author's decisionL'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
(Universitat Politècnica de Catalunya, 2014-06-30)
Bachelor thesis
Open AccessActualment 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
(2018-02-01)
Article
Restricted access - publisher's policyTetragonal 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 ... -
Comment on "Diffusion on solif surfaces: anomalous is normal"-Reply
(Americah Physical Society, 2005-05-12)
Article
Open Access -
Comparison of drop evaporation models on hot surface
(Universitat Politècnica de Catalunya / Politecnico di Milano, 2014)
Bachelor thesis
Open Access
Covenantee: Politecnico di MilanoThis 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
(American Institute of Physics (AIP), 2012-09-01)
Article
Open AccessLusters 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
(2018-05-09)
Article
Open AccessWe 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 ... -
Diffusion on Solid Surface: anomalous is Normal
(American Physical Society, 2004-06-23)
Article
Open AccessWe present a numerical study of classical particles diffusing on a solid surface. The particles’ motion is modeled by an underdamped Langevin equation with ordinary thermal noise. The particle-surface interaction is described ... -
Dispersionless transport in a washboard potential
(American Physical Society, 2007-01-10)
Article
Open AccessWe study and characterize a new dynamical regime of underdamped particles in a tilted washboard potential. We find that for small friction in a finite range of forces the particles move essentially nondispersively, that ... -
Dynamic versus Anderson wave-packet localization
(2015-06-18)
Article
Open AccessWe address the interplay between two fundamentally different wave-packet localization mechanisms, namely, resonant dynamic localization due to collapse of quasienergy bands in periodic media and disorder-induced Anderson ... -
Effective diffusion in a stochastic velocity field
(Springer Verlag, 1993-04-01)
Article
Restricted access - publisher's policyAnalytical results are derived for the effective dispersion of a passive scalar in a stochastic velocity field evolving in a fast time scale. These results are favorably compared with direct computer simulation of ... -
Electrospun PLLA membranes for caffeine delivery: diffusional approach
(Springer, 2017-12-29)
Article
Open AccessOne of the great advantages of electrospun fibers is the large tridimensional area produced, capable of storing any type of material. The aim of our investigation is to study the electrospinning technique to produce polymer ... -
Evaporation of a sodium chloride solution from a saturated porous medium with efflorescence formation (salt crystallisation).
(Universitat Politècnica de Catalunya, 2016-06-15)
Bachelor thesis
Restricted access - author's decision
Covenantee: Institut de Mécanique des Fluides de ToulouseEvaporation of saline solutions from a porous medium often leads to the precipitation of salt at the surface of the porous medium. It is commonly observed that the crystallized salt does not form everywhere at the porous ... -
From subdiffusion to superdiffusion of particles on solid surfaces
(American Physical Society, 2004-11-15)
Article
Open AccessWe present a numerical and partially analytical study of classical particles obeying a Langevin equation that describes diffusion on a surface modeled by a two dimensional potential. The potential may be either periodic ...
