Now showing items 37-50 of 50

    Shallow Water Remote Sensing Using Sonar Improved with Geostatistics and Stochastic Resonance Data Processing 

    Sousa Sena, André Luis (Date of defense: 2018-02-19)

    [eng] The main objective proposed in this doctoral thesis was focused on the study and development of a solution for the remote sensing of the submarine topographic relief, using for this, inexpensive equipment. Here we ...

    Spatial structures and Information Processing in Nonlinear Optical Cavities 

    Jacobo, Adrian (Date of defense: 2009-04-03)

    Stably stratified atmospheric boundary layer: study trough large-eddy simulations, mesoscale modelling and observations 

    Jiménez Cortés, Maria Antònia (Date of defense: 2005-12-12)

    La capa límit atmosfèrica és l'àrea directament influenciada per la presència de la superfície de la terra i la seva alçada és d'uns centenars de metres a uns pocs quilòmetres. Durant el vespre, el refredament radiatiu ...

    Study of the Generation of Optical Pulses by Mode-Locking in Semiconductor Lasers for Applications in LiDAR Systems 

    Chaparro González, Daniel (Date of defense: 2020-01-17)

    [cat] El present treball constitueix un estudi sobre la generació i control de polsos optics en diferents tipus de lasers de semiconductor i el seu potencial aplicació a sistemes de mesures a distancia. En primer lloc, ...

    Study on the general applicability of the collector efficiency model to solar process heat collectors 

    David Hertel, Julian (Date of defense: 2019-07-23)

    [eng] According to several studies, the installed capacity of solar thermal collectors to provide heat for industrial processes is going to increase significantly during the next decades. The great variety of designs and ...

    Submesoscale dynamics in the western Mediterranean sea 

    Capó Truyols, María Esther (Date of defense: 2020-01-22)

    [eng] The transition from mesoscale to submesoscale dynamics is investigated in the western Mediterranean Sea (WMed) using a set of ROMS model simulations. The research is structured in a series of sequential stages ...

    Synchronization and application of delay-coupled semiconductor lasers 

    Hicke, Konstantin (Date of defense: 2014-07-03)

    The work in this thesis is focused on the complex dynamics of semiconductor laser (SL) devices which receive time-delayed feedback from an external cavity or are delay-coupled with a second semiconductor laser. We ...

    Temporal evolution of MHD waves in solar coronal arcades 

    Rial Lesaga, Samuel (Date of defense: 2019-10-11)

    [eng] In this thesis we will study vertical oscillations in a potential arcade under the approximation of a zero- plasma, when di erent density pro les are considered. On one hand we will focus on the time-dependent ...

    Test estructural i predictiu per a circuits RF CMOS 

    Suenaga Portuguès, Kay (Date of defense: 2008-12-17)

    En aquesta tesi s'ha desenvolupat una tècnica de test que permet testar un LNA i un mesclador, situats en el capçal RF d'un receptor CMOS, en una configuració de test semblant al mode normal de funcionament.<br/>La circuiteria ...

    Theoretical issues in Numerical Relativity simulations 

    Alic, Daniela Delia (Date of defense: 2009-09-18)

    In this thesis we address several analytical and numerical problems related with the general relativistic study of black hole space-times and boson stars. <br/>We have developed a new centered finite volume method based ...

    Time and Spatial Damping of Magnetohydrodynamic Waves in Partially Ionised Prominence Plasmas 

    Forteza Ferrer, Pep (Date of defense: 2013-02-11)

    Inici de l’estudi de l’efecte de les col•lisions entre ions i neutres en l’esmorteïment d’ones magnetohidrodinàmiques. Es considera un plasma parcialment ionitzat, infinit i homogeni, i s’analitza l’esmorteïment temporal ...

    Towards a gauge polyvalent numerical relativity code: numerical methods, boundary conditions and di erent formulations 

    Bona Casas, Carles (Date of defense: 2011-04-08)

    La present tesi doctoral versa sobre la resolucio numèrica de les equacions d'Einstein de la Teoria de la Relativitat. Es presenta: una nova familia de mètodes computacionals amb variació total acotada i d'implementació ...

    Two satellite-based rainfall algorithms, calibration methods and post-processing corrections applied to Mediterranean flood cases 

    de Luque Söllheim, Ángel Luis (Date of defense: 2008-03-14)

    Esta tesis explora la precisión de dos métodos de estimación de precipitación, Auto-Estimator y CRR (Convective Rainfall Rate), generados a partir de imágenes infrarrojas y visibles del Meteosat. Ambos métodos junto con ...

    Waveform modelling of binary black holes in the advanced ligo era 

    García Quirós, Cecilio (Date of defense: 2020-07-22)

    [eng] The focus of this thesis is the development of accurate and computationally efficient waveform models for the description of the signal of non-precessing and precessing blackhole binary systems detected by the ...