Now showing items 26-42 of 42

    First measurement of beta-decay half-lives and neutron emission probabilities in several isotopes beyond N = 126 

    Caballero Folch, Roger (Date of defense: 2015-06-05)

    In this work beta-decay half-lives and neutron-emission probability values have been experimentally determined for first time in several nuclei beyond the neutron-shell closure at N=126. To this aim the accelerator complex ...

    IFMIF accelerator facility RAMI analyses in the engineering design phase 

    Bargalló Font, Enric (Date of defense: 2014-05-09)

    The planned International Fusion Materials Irradiation Facility (IFMIF) has the mission to test and qualify materials for future fusion reactors. IFMIF will employ the deuteron-lithium stripping reaction to irradiate the ...

    Interacció Paramètrica no Lineal en Materials amb Nano-Estructuració Ordenada 

    Maymó Camós, Marc (Date of defense: 2007-11-29)

    Les interaccions no lineals de segon ordre són, probablement, uns dels processos de l'òptica no lineal més utilitzats i rellevants en quant a les seves aplicacions. Aquestes interaccions només són eficients en materials ...

    Mesógenos alquiloxicianobifenilos : aspectos teóricos y experimentales en las transiciones de fase SmA-N y N-I 

    Cusmin, Paul (Date of defense: 2009-03-11)

    The work presented here has been focused, basically, on the study of the SmA-N and N-I phase transitions of a group of liquid crystals, the alkyloxycyanobiphenyls (nOCB), in which, for some of them, as it is the case of ...

    Monte Carlo and experimental small-field dosimetry applied to spatially fractionated synchrotron radiotherapy techniques 

    Martínez Rovira, Immaculada (Date of defense: 2012-03-12)

    Two innovative radiotherapy (RT) approaches are under development at the ID17 Biomedical Beamline of the European Synchrotron Radiation Facility (ESRF): microbeam radiation therapy (MRT) and minibeam radiation therapy ...

    Multi-dimensional simulations of mixing in classical novae 

    Casanova Bustamante, Jordi (Date of defense: 2011-11-03)

    Classical nova explosions are stellar explosions that take place in close binary systems with an energy release only exceeded by gamma-ray bursts and supernova explosions. Matter from the white dwarf flows through the inner ...

    New developments on preparation of cooled and bunched radioactive ion beams at ISOL-Facilities: the ISCOOL project and the rotating wall cooling 

    Podadera Aliseda, Ivan (Date of defense: 2006-07-07)

    Last years have become very productive for the research, construction and development of new facilities devoted to the production of beams with exotic radioisotopes (Radioactive Ion Beams, RIB). These beams are later used ...

    Nonlinear one-zone models of stellar pulsations 

    Munteanu, Andreea (Date of defense: 2003-12-16)

    Nuestro trabajo se ha concentrado en la simulación y el análisis de modelos no-lineales aplicados a las curvas de luz ópticas de estrellas variables de largo periodo. Cuando las estrellas de masa pequeña o intermedia (de ...

    Novel applications of Photonic Force Microscopy 

    Volpe, Giovanni (Date of defense: 2008-10-23)

    The ability of detecting farces and torques at the micro-and nano-scale is fundamental. When this Thesis started, various scanning probe techniques had already been developed to probe the mechanical properties of microsystems. ...

    Radiation Transport Modelling in a Tokomak Plasma: Application to Performance Prediciton and Design of Future Machines 

    Albajar Viñas, Ferran (Date of defense: 2001-06-14)

    The understanding and modelling of heat and radiation transport in tokamak plasmas is essential in order to progress in the development of thermonuclear fusion towards a practical energy source which meets all the future ...

    Scaling-up methodology : a systematical procedure for qualifying NPP nodalizations. Application to the OECD/NEA ROSA-2 and PKL-2 Counterpart test 

    Martínez Quiroga, Victor (Date of defense: 2014-11-17)

    System codes along with necessary nodalizations are valuable tools for thermal hydraulic safety analysis. Qualifying both codes and nodalizations is an essential step prior to their use in any significant study involving ...

    Second Harmonic Generation in Photonic Crystals 

    Trull Silvestre, José Francisco (Date of defense: 1999-12-21)

    Photonic crystals emerged at the end of the last decade as a new frame to control the interaction between radiation and matter. The potential advances that such structures could report in photonics technology has lead to ...

    Shaping of light beams with photonic crystals : spatial filtering, beam collimation and focusing 

    Maigyte, Lina (Date of defense: 2014-07-01)

    The research developed in the framework of this PhD thesis is a theoretical, numerical and experimental study of light beam shaping (spatial filtering, beam collimation and focusing) in the visible frequency range using ...

    Simulación de plasmas de dispositivos de fusión por confinamiento magnético tipo tokamak y stellarator. Validación experimental y aplicación al estudio del Heliac Flexible TJ-II 

    Fontanet Saez, Joan (Date of defense: 2001-07-05)

    En el estudio de la fusión por confinamiento magnético es crucial conocer con detalle las condiciones físicas del plasma confinado. En este sentido los códigos de simulación son una herramienta muy útil para interpretar ...

    Solvation dynamics and ion transport in conventional solvents and plasticizers 

    Masia, Marco (Date of defense: 2005-10-24)

    El argumento fundamental de esta tesis es el estudio de la solvatación iónica por medio de cálculos con ordenador. Tres lineas de investigación han sido seguidas:<br/>(i) Solvatación y mobilidad ionica. Las características ...

    Study of electron heat transport in LHD and TJ-II 

    García Olaya, Jerónimo (Date of defense: 2006-04-20)

    The magnetically confined plasmas study is one of the most promising research fields in the present days due to the high perspectives of unlimited and clean energy that fusion has generated. In this framework, the stellarator ...

    Study of thermal transitions in polymers by a multifrequency modulated DSC technique 

    Fraga Rivas, Iria (Date of defense: 2010-02-26)

    Differential Scanning Calorimetry (DSC) is one of the most widely used thermal analysis techniques for the study of transitions and relaxation processes in polymers and also in other materials. It measures the heat flow ...