A computational micromechanics investigation of longitudinal strength in unidirectional fibre reinforced composites 

    Barzegar, Mostafa (Date of defense: 2022-09-26)

    The use of Fibre Reinforced Polymers (FRP) composites has grown in popularity over the last few decades. They offer outstanding mechanical properties combined with a low density, making them an excellent solution for many ...

    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, ...

    Applications of hydrodynamic and water quality models to the Sau and Boadella Reservoirs 

    Takkouk, Saddek (Date of defense: 2011-05-06)

    Applicaciò d'un model de hydrodinàmica i de qualitat de l'aigua als embassaments de Sau i Boadella

    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 ...

    Contribución a la comprensión y mejora de los procesos de inyección de resina para la fabricación de componentes aeronáuticos de geometría compleja en composite 

    Ariño Palacín, María (Date of defense: 2022-10-30)

    To overcome the challenges coming from environmental impacts has been a priority for the aeronautical sector in the past years, with a special focus on reducing CO2 emissions. The fibre-reinforced polymers (FRP) are ...

    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 ...

    Desenvolupament i caracterització d'aliatges de base ferro produïts per aliatge mecànic i solidificació ràpida 

    González Gasch, Àlex (Date of defense: 2006-04-07)

    L'objectiu general d'aquest treball és l'obtenció de nous materials nanoestructurats magnètics tous produïts mitjançant la tècnica de l'aliatge mecànic. Forma part d'un projecte més ampli de desenvolupament d'aquests tipus ...

    Development and study of nanocrystalline and amorphous soft-ferromagnetic alloys 

    Bonastre i Muñoz, Jordi (Date of defense: 2018-01-15)

    This thesis deals with the production, characterization and analysis of Fe and Co based nanocrystalline and amorphous soft-ferromagnetic alloys, alloys showing ferromagnetic hysteresis cycles with low energy losses, produced ...

    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, ...

    Intermittency of turbulence in natural waters: patchiness in the thermocline of a lake under low winds and small-scale intermittency in the bottom boundary layer of a tidal flow 

    Planella Morató, Jesús (Date of defense: 2015-07-15)

    Turbulence intermittency influences so many processes in natural waters on a wide range of scales. This work analyzes intermittency, both internal and external, by considering two cases: the thermocline of a small lake ...

    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 ...