Mostrando ítems 14-33 de 68
Riera Graells, Arnau (Fecha de defensa: 2010-03-18)
THESIS SUMMARY<br/><br/>TEXT:<br/><br/>This thesis is made of two parts. In the first one, the issue of entanglement in many body systems is addressed. The concept of entanglement and some of the recent progress on the ...
Orús Lacort, Román (Fecha de defensa: 2006-07-20)
From the seminal ideas of Feynman and until now, quantum information and computation has been a rapidly evolving field. While at the beginning, physicists looked at quantum mechanics as a theoretical framework to describe ...
Castan i Vidal, Maria Teresa (Fecha de defensa: 1987-04-09)
Els sistemes objecte d'estudi en aquest treball són aliatges metàl·lics d'estructura reticular b.c.c. els quals, a baixes temperatures, experimenten una transició de fase estructural de tipus martensític (bàsicament descrita ...
Planet Latorre, Ramon (Fecha de defensa: 2009-10-23)
La imbibició és un procés de transport de fluids immiscibles en un medi desordenat en el qual el fluid que mulla preferentment el medi desplaça el fluid resident. La interfície que separa aquests dos fluids esta sotmesa a ...
Ramírez de la Piscina Millán, Laureano (Fecha de defensa: 1990-07-06)
La caracterización de sistemas por medio de sus tiempos característicos es sujeto de investigación tanto teórica como experimental. Posiblemente el tiempo característico más conocido y más ampliamente utilizado es el Tiempo ...
Pérez Reche, Francisco José (Fecha de defensa: 2005-04-29)
En esta tesis se han estudiado algunos aspectos de sistemas que presentan transiciones de fase. Para ello se ha empleado tanto un enfoque experimental como teórico. En particular, se han investigado algunas transiciones ...
Ignés i Mullol, Jordi (Fecha de defensa: 1997-06-26)
We have performed pattern formation experiments where a relatively well understood system (flow in a Hele-Shaw cell) is perturbed either by means of a lattice of grooves or by the use of viscoelastic fluids. We have extended ...
Tarrús Castellà, Jaume (Fecha de defensa: 2012-06-07)
The first three chapters of this thesis have been devoted to the theoretical background. We presented the novel work of this thesis in chapters 4 and 5. In chapter 4 we have constructed a Chiral effective field theory for ...
Eiras Fernández, Dolors (Fecha de defensa: 2002-07-01)
Collected papers where problems involving non-relativistic systems are solved by means of a proper Effective Field Theory. Those problems include the calculation of the lifetime of pionium, the lepton finite mass corrections ...
Puig Navarro, Albert (Fecha de defensa: 2012-03-09)
Radiative decays of B mesons, a good example of Flavor Changing Neutral Currents, are interesting for the study of physics beyond the Standard Model, as new high-energy phenomena can enter in the loop. The LHCb experiment, ...
Grabalosa Gándara, Marc (Fecha de defensa: 2012-05-15)
Flavour Tagging at the LHCb experiment is a fundamental tool for the measurement of B oscillations and the study of CP violation. This document explains the development of different tagging techniques and the different ...
Frigola Tubert, David (Fecha de defensa: 2016-01-18)
Biological development is a complex process in which, from a single cell, a whole multicellular organism arises. The formation of this intrincate structures requires a very precise regulation in space and time. This ...
Campàs i Rigau, Otger (Fecha de defensa: 2006-01-01)
[eng] The propulsion mechanisms that drive the movements of living cells constitute perhaps the most impressive engineering works of nature. Still, it is simply the interaction between molecules which is responsible for ...
Trejo Soto, Claudia Andrea (Fecha de defensa: 2016-07-15)
Since Poiseuille times, several techniques has been developed to measure the viscosity of blood. During the 60's and 70's, with the appearance of the first rheomethers, the rheological properties of blood were accurately ...
Teller Amado, Sara (Fecha de defensa: 2016-02-05)
Major dynamical traits of a neuronal network are shaped by its underlying circuitry. In several neurological disorders, the deterioration of brain's functionality and cognition has been ascribed to changes in the topological ...
Clotet i Fons, Xavier (Fecha de defensa: 2014-07-11)
The dynamics of fractured media flows is relevant in many processes of interest that range from the micrometre to the kilometre lengthscales. Flow in disordered media has been proven to be an interesting system to study ...
Camboni, Alessandro (Fecha de defensa: 2013-02-11)
The LHCb detector features an outstanding capability to identify displaced secondary vertices with respect to the interaction point. The extraordinary performance of the whole LHCb tracking system makes possible accurate ...
Torralba Cuello, Mireia (Fecha de defensa: 2007-04-26)
[spa] Durante la tesis se realizó un estudio experimental de inestabilidades hidrodinámicas en dos sistemas muy diferentes. Estudiamos inestabilidades laterales en dedos de Saffaman-Taylor sujetos a dos tipos de ...
Pauné i Xuriguera, Eduard (Fecha de defensa: 2002-11-15)
The subject of this thesis is viscous fingering in Hele-Shaw cells, or Hele-Shaw flows. We look for insights into the fundamental mechanisms<br/>underlying the physics of interface dynamics, which we hope will exhibit some ...
Lloveras Muntané, Pol (Fecha de defensa: 2010-06-15)
[spa] Esta tesis se enmarca dentro del estudio de los efectos de inhomogeneidades en materiales funcionales, dentro de los cuales podemos citar a los materiales que presentan magnetoresistencia colosal, superconductores ...