Ara mostrant els elements 1-20 de 188

    A journey of Ultra Heavy Cosmic Ray Nuclei with Z≥65: From their detection near the Earth neighborhood back to their nucleosynthesis sites 

    Font i Serra, Joan (Data de defensa: 2004-07-28)

    Des de temps immemorials, dels principis de la humanitat, els éssers humans han mostrat un tremenda curiositat i atracció pel que veien quan enlairaven la vista. Per un motiu o un altra, la recerca d'explicacions de ...

    A versatile system for the study of light-matter interactions at the level of individual particles 

    Bianchet, Lorena Cecilia (Data de defensa: 2022-02-25)

    In this thesis, a single-atom trap in a "Maltese cross'' geometry (MCG) was designed, built up and characterized. A MCG atom trap uses four in-vacuum lenses to achieve four-directional high-numerical-aperture optical ...

    Ab-initio quantum Monte Carlo study of ultracold atomic mixtures 

    Cikojević, Viktor (Data de defensa: 2021-04-20)

    The properties of mixtures of Bose-Einstein condensates at T=0 have been investigated using quantum Monte Carlo (QMC) methods and Density Functional Theory (DFT) with the aim of understanding physics beyond the mean-field ...

    Active superelasticity in three-dimensional epithelia of controlled shape 

    Latorre Ibars, Ernest (Data de defensa: 2021-02-19)

    Fundamental processes in development and physiology are determined by the three-dimensional architecture of epithelial sheets. How these sheets deform and fold into complex structures has remained unclear, however, because ...

    Advances in fibre Bragg grating sensors for damage detection in composite laminates: application in quasi-static and fatigue delamination tests 

    Sans Canovas, Daniel (Data de defensa: 2013-06-26)

    The use of composite materials in industrial applications such as aeronautical, aerospace or wind energy production has greatly increased in recent decades. Due to their inherent properties, these materials allow lighter, ...

    Algunes Aplicacions Fenomenològiques dels Lagrangians Efectius 

    Escribano Carrascosa, Rafel (Data de defensa: 1996-06-13)

    Analysis of energetic particle-driven Alfvénic instabilities in tokamak and stellarator plasmas using three dimensional numerical tools 

    Rakha, Allah (Data de defensa: 2019-09-27)

    In this thesis, a detailed analysis of the experientially observed energetic particle-driven Alfvénic instabilities in tokamak and stellarator plasmas using three dimensional numerical tools based on the reduced MHD model ...

    Analysis of the Large Gamma Ray Flares of Mkn 421 as Observed with HEGRA CT1 on the Island La Palma in 2001 

    Schweizer, Thomas (Data de defensa: 2002-12-03)

    En este documento presentaré un resumen de mi análisis acerca de los periodos de gran actividad de emisión gamma en 2001 para el objeto Mkn421. <br/>El análisis clásico y los métodos de separación gamma/hadrón para los ...

    Assessment of gas-surface interaction modelling for lifting body re-entry flight design 

    Viladegut Farran, Alan (Data de defensa: 2017-12-01)

    Space re-entry is a challenging endeavor due to the harsh thermo-chemical environment around the vehicle. Heat flux being the reference parameter for Thermal Protection System (TPS) design, the total energy transfer can ...

    Assessment of virtual design and manufacturing techniques for fibre reinforced composite materials 

    Gascons i Tarrés, Marc (Data de defensa: 2011-12-02)

    Virtual tools are commonly used nowadays to optimize product design and manufacturing process of fibre reinforced composite materials. The present work focuses on two areas of interest to forecast the part performance and ...

    Atomic imaging of complex molecular 

    Liu, Xinyao (Data de defensa: 2022-07-27)

    One of the significant challenges of modern science is to track and image chemical reactions as they occur. The molecular movies, the precise spatiotemporal tracking of changes in their molecular dynamics, will provide a ...

    Atomistic study of slip transfer in BCC metals 

    Kvashin, Nikolai (Data de defensa: 2022-11-16)

    (English) The mechanical properties of structural materials, which are naturally polycrystalline, is defined by a number of physical processes that take place at different time and space scales. On several of those processes, ...

    Calorimeter Reconstruction Innovations for the LHCb Experiment 

    Valls Canudas, Núria (Data de defensa: 2023-11-06)

    Aquesta tesi se centra en contribucions de software per l'experiment LHCb al CERN, específicament pel sistema de calorímetres en el context de l'anomenat Upgrade I. Les contribucions principals se centren en l'estudi ...

    Caracterització optoelectrònica de materials bidimensionals a altes freqüencies 

    Arcos Gutiérrez, David (Data de defensa: 2022-07-19)

    Two-dimensional materials have a lot of applications in the electronic and photonic device design field, especially when they need to be flexible and transparent. In particular, high frequency applications, above 100MHz, ...

    Caracterización de subóxidos de silicio obtenidos por las técnicas de PECVD 

    Benmessaoud, Alí (Data de defensa: 2001-12-17)

    Se ha escogido la técnica PECVD para obtener depósitos de subóxido de silicio, SiOx, de espesores del orden de la micra, sobre substratos de Si de dos pulgadas. Hemos logrado depósitos con contenidos de oxígeno entre 1.3 ...

    Characterization of the structure, stability, mechanical and electrochemical properties of metallic glasses 

    Duarte Correa, María Jazmín (Data de defensa: 2013-05-31)

    Metallic glasses are often referred as glassy or amorphous alloys. They lack long-range order and microstructural defects that are characteristics in crystals, such as grain and phase boundaries and dislocations. These new ...

    Charged particle multiplicities in pp interactions at p s = 900 GeV and p s = 7 TeV measured with the ATLAS detector at the LHC 

    Volpi, Matteo (Data de defensa: 2010-12-16)

    La tesis se centra en los estudios de la producción inelástica de las partículas cargadas en el colisionador LHC que opera en la frontera de la energía del centro de masa de 7 TeV. Los datos corresponden a 16 μb-1 de la ...

    Charmed baryon resonances and mesons in hot and dense matter 

    Jiménez Tejero, Clara Estela (Data de defensa: 2012-03-05)

    In this thesis we have studied baryon resonances generated from the dynamical interaction of two hadrons. We are interested on this study as an alternative approach to explain the increasing number of observed charmed ...

    Coarse-Grained Mean-Field Simulations of Surfactant Micelles: Static and Dynamic Equilibrium Properties 

    García Daza, Fabián Alonso (Data de defensa: 2016-09-20)

    Les molècules de surfactants estan compostes per seccions hidrofíliques i hidrofòbiques del qual les interaccions oposades amb el medi solvent deriven en un comportament particular on, a una concentració de surfactant ...

    A cold-atom approach to topological quantum matter across the energy scale 

    González Cuadra, Daniel (Data de defensa: 2020-12-11)

    The outstanding progress achieved in the last decades to isolate and manipulate individual quantum systems has revolutionized the way in which quantum many-body phenomena, appearing across Nature's different energy scales, ...