Now showing items 6-25 of 50

    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 ...

    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, ...

    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 ...

    Dynamics of posidonia oceanica meadows 

    Ruiz Reynés, Daniel (Date of defense: 2019-12-13)

    [cat] Aquesta tesi conté l’estudi de la dinàmica de patrons de vegetació a les praderes de Posidonia oceanica. El primer capítol presenta diferents casos de formació de patrons de vegetació a diferents ecosistemes, les ...

    Physical and economic impacts due to sea level changes and wind-waves around the Balearic Islands 

    Rodríguez Enríquez, Alejandra (Date of defense: 2019-11-29)

    [eng] This thesis investigates and quantifies the impacts caused by climate change in the coasts of Balearic Islands (western Mediterranean Sea) from both a physical and an economic perspective. Two physical mechanisms ...

    Active shear strengthening of reinforced concrete beams using Ni-Ti-Nb shape memory alloys 

    Rius Gibert, Joan Maria (Date of defense: 2019-04-05)

    [eng] Shear strengthening of existing structures is often required as shear failures in reinforced concrete (RC) members are associated with brittle collapses, it being essential to avoid this kind of failure. This thesis ...

    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 ...

    Hierarchical data-driven modelling of binary black hole mergers 

    Jiménez Forteza, Francisco (Date of defense: 2017-09-05)

    [eng]Throughout history, human beings have received and interpreted information from distant stars and galaxies through electromagnetic waves (light). Until 2015 this was the dominant way for observing astrophysical ...

    Methodologies for hardware implementation of reservoir computing systems 

    Alomar Barceló, Miquel Lleó (Date of defense: 2017-09-11)

    [cat]Inspirades en la forma en què el cervell processa la informació, les xarxes neuronals artificials (XNA) es crearen amb l’objectiu de reproduir habilitats humanes en tasques que són difícils de resoldre mitjançant la ...

    Desarrollo y aceleración hardware de metodologías de descripción y comparación de compuestos orgánicos 

    Oliver Gelabert, Antoni (Date of defense: 2018-02-16)

    Introducción El acelerado ritmo al que se genera y crece la información en la sociedad actual y la posible llegada de la tecnología de transistor a sus límites de tamaño exige la puesta en marcha de soluciones para el ...

    High-frequency waves and instabilities in multi-fluid partially ionized solar plasmas 

    Martínez Gómez, David (Date of defense: 2018-01-17)

    The solar atmosphere is a highly dynamic environment in which a huge diversity of waves and instabilities has been detected. The matter in that region is in plasma state, and thus is affected by the presence of electromagnetic ...

    Photonic systems with multiple delay times: synchronization, square-ware switching and state-dependent delay 

    Martínez Llinàs, Jade (Date of defense: 2016-11-15)

    Aquesta tesi doctoral se centra en l’estudi teòric i numèric de sistemes fotònics amb retroacció i múltiples línies de retard, en el límit en el que els temps de retard són molt més grans que les escales de temps ...

    Individual-based models of collective dynamics in socio-economic systems 

    Carro Patiño, Adrián (Date of defense: 2016-09-29)

    The main purpose of this thesis is to contribute to the understanding of how complex collective behaviors emerge in social and economic systems. To this end, we use a combination of mathematical analysis and computational ...

    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 ...

    Complex dynamics in photonic delay systems: a story of consistency and unpredictability 

    Oliver Andreu, Neus (Date of defense: 2015-12-16)

    - Introducció Photonic systems are powerful test-beds for the investigation of complex dynamics emerging from delays in feedback or coupling. The aim of this thesis was to study two relevant properties of photonic delay ...

    Complex dynamics of delay-coupled semiconductor lasers: fundamentals and applications 

    Porte Parera, Javier (Date of defense: 2015-11-30)

    Introduction: The present thesis is devoted to the study of semiconductor lasers subject to delayed optical feedback and coupling. The complex spectral and dynamical properties of these systems have been investigated ...

    Impact of large-scale atmospheric variability on sea level and wave climate 

    Martínez Asensio, Adrián (Date of defense: 2015-09-28)

    This thesis aims at quantitatively characterizing the recent (last few decades) and future climate variability of marine climate in the Western Mediterranean Sea and the North Atlantic Ocean. Namely it focuses on sea level ...

    MEDICANES: meteorological environments and risk assessment in the present and future climate 

    Tous Nadal, Maria (Date of defense: 2015-09-18)

    Medicanes are a rare and physically unique type of Mediterranean cyclone. They show similarities with tropical cyclones with regard to their development (based on the thermodynamical disequilibrium between the warm sea ...

    Mesoscale eddies in the western mediterranean sea: characterization and understanding from satellite observations and model simulations 

    Escudier, Romain (Date of defense: 2015-01-21)

    Mesoscale eddies are relatively small structures that dominate the ocean variability and have large impact on large scale circulation, heat fluxes and biological processes.In the western Mediterranean Sea, a high number ...

    Mesoscale hydrodynamics around the Balearic Islands: spatio-temporal variability and its relation with shing resources. 

    Amores Maimó, Angel Miguel (Date of defense: 2014-07-09)

    The Balearic Islands, located in the Western Mediterranean Sea, are the natural limit between the Balearic subbasin, at the noth and the Algerian subbasin, at the south. Previous studies based on hydrographic data have ...