A deterministic model for lake clarity; application to management of Lake Tahoe (California-Nevada), USA 

    Pérez Losada, Joaquim (Date of defense: 2001-11-15)

    This dissertation has as its goal the quantitative evaluation of the application of<br/>coupled hydrodynamic, ecological and clarity models, to address the deterministic prediction of water clarity in lakes and reservoirs. ...

    Advanced thermal analysis of ReBCO superconductor precursor films and functional oxides 

    Rasi, Silvia (Date of defense: 2019-11-12)

    High temperature superconductivity and in particular YBa2Cu3O7-x (YBCO) coated conductors (CCs) are a crucial technology for the drastic reduction of CO2 emissions. Since nowadays YBCO CCs are not competitive economically, ...

    Aliatges magnètics nanocristal·lins de base ferro i aliatges Heusler: producció i caracterització 

    Carrillo Berlanga, Albert (Date of defense: 2020-01-17)

    This work is focused on the production and characterization of: (1) Fe based nanocrystalline soft magnetic materials of NANOPERM and HITPERM families and (2) Heusler magnetic shape memory alloys. Within the first typology, ...

    Anàlisi del camp d'ones internes en sistemes limnològics petits. Simulacions amb el POM 

    Forcat Torras, Francesc (Date of defense: 2009-07-28)

    Aquí hem aplicat el Princeton Ocean Model als embassaments de Sau i Boadella, situats a Catalunya, Espanya. Les simulacions s'han realitzat a l'estació d'estiu, quan la columna d'aigua està estratificada de forma contínua, ...

    Atmospheric downwelling longwave radiation at the surface during cloudless and overcast conditions. Measurements and modeling 

    Viúdez i Mora, Antoni (Date of defense: 2011-04-15)

    Atmospheric downwelling longwave radiation is an important component of the terrestrial energy budget; since it is strongly related with the greenhouse effect, it remarkably affects the climate. In this study, I evaluate ...

    Basin-scale hydrodynamics in a Mediterranean reservoir. Implications for the phytoplankton dynamics 

    Vidal Hurtado, Javier (Date of defense: 2007-04-27)

    Procesos hidrodinámicos determinan, en un alto grado la calidad del agua en embalse, sin embargo dichos procesos han sido tradicionalmente olvidados en la gestión de embalse. En esta tesis se presentan evidencias de los ...

    Cloud-aerosol transition zone radiative effects from modeling and observational perspectives 

    Jahani, Babak (Date of defense: 2021-11-29)

    Aerosols and clouds, as two particular cases of a single phenomenon (i.e., a suspension of particles in the air), are important components in the climate system. They play a crucial role in determination of Earth’s energy ...

    A contribution to the understanding of compression after impact of composite laminates 

    Liv, Yi (Date of defense: 2017-10-26)

    The threat of impact on laminated composite structures has been a serious concern in the aerospace industry and scientific community because the compression load-carrying capacity of the structures, namely Compression 1/2 After ...

    Dynamics and mixing in the Upper Ocean Layer 

    Figueroa Rodríguez, Jesús Manuel (Date of defense: 2005-11-24)

    S'estudia la resposta de la capa de barreja oceànica al forçament atmosfèric considerant dades obtingudes durant 12 dies d'abril del 2001 a 42 estacions a través de l'Atlàntic nord seguint aproximadament la latitud de ...

    Effects of aquatic vegetation on sediment transport 

    Ros i Sala, Àlex (Date of defense: 2016-10-26)

    In the margins of continents there are the coastal zones, regions of remarkable biological productivity. Coastal zones include, among others, wetlands, that are land areas inundated permanently o seasonally, characterized ...

    Evaluación de modelos climáticos: el comportamiento de la variable nubosidad 

    Enríquez Alonso, Aarón (Date of defense: 2016-07-01)

    Las nubes constituyen uno de los fenómenos más importantes en cuanto a la regulación de la radiación entrante y saliente de la Tierra y por ende, del clima. El principal objetivo de esta tesis es analizar cómo se reproduce ...

    Front spreading in population dynamic models. Theory and application to the Neolithic transition 

    Isern Sardó, Neus (Date of defense: 2011-12-01)

    This thesis presents population dynamics models that can be applied to predict the rate of spread of the Neolithic transition (change from hunter-gathering to farming economics) across the European continent, which took ...

    Geometric characteristics of clouds from ceilometer measurements and radiosounding methods 

    Costa Surós, Montse (Date of defense: 2014-10-02)

    Improving methods for automatic and continuous description of cloud has a huge importance in order to determine the role of clouds in climate and their contribution to climate change. The geometric characteristics of clouds, ...

    Implementation of a high-pressure resin transfer molding (HP-RTM) process to increase the production rate of structural composites and characterization of sustainable vitrimer-matrix high-performance composites 

    Builes Cárdenas, Cristian (Date of defense: 2023-03-20)

    Transport industry, especially automotive, is one of the most pollutant in the world. Current environmental concerns demand original equipment manufacturers (OEM’s) to reduce the amount of emissions released by their ...

    Modified hydrodynamics in fragmented canopies exposed to oscillatory flows 

    El Allaoui, Nazha (Date of defense: 2016-07-21)

    The general objective of this doctoral thesis has been to contribute to understand the modification of hydrodynamics in fragmented canopies. The effect of different parameters such as the canopy density, the plant height ...

    Numerical modeling of anisotropic granular media 

    Kanzaki Cabrera, Takeichi (Date of defense: 2013-11-29)

    Granular materials are multi-particle systems involved in many industrial process and everyday life. The mechanical behavior of granular media such as sand, coffee beans, planetary rings and powders are current challenging ...

    Obtaining advanced oxide thin films at low temperatures by chemical methods. Thermal analysis of thin films 

    Sánchez Rodríguez, Daniel (Date of defense: 2015-10-14)

    L'objectiu d'aquest treball és analitzar mètodes químics de baix cost com a ruta per a sintetitzar òxids avançats a baixa temperatura. En particular, hem explorat l'SHS per a la síntesi d'un òxid catalitzador fent servir ...

    Population and evolutionary dynamics in spatial systems 

    Rodríguez Amor, Daniel (Date of defense: 2013-06-28)

    Physical and mathematical models are extremely useful to understand key processes in population and evolutionary dynamics. Such models allow the study of many diverse features in spatial systems such as front propagation, ...

    Population range expansions, with mathematical applications to interacting systems and ancient human genetics 

    López de Rioja, Víctor (Date of defense: 2019-03-11)

    The thesis studies from an analytical and computational perspective, and by using reaction-diffusion equations, the spatiotemporal evolution of different populations. First, the dynamics of the T7 bacteriophage infecting ...

    Processos convectius en un sistema aquàtic natural: l'estany de Banyoles 

    Sánchez Martín, Xavier (Date of defense: 2008-05-26)

    En aquesta tesi s'aborda l'estudi de la turbulència convectiva, a partir d'un treball experimental realitzat a l'estany de Banyoles. Més concretament, els objectius s'emmarquen en dues categories diferents. En la primera, ...