Now showing items 21-36 of 36
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 ...
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 ...
Barcelona Arbat, Aina (Date of defense: 2024-03-11)
Seagrass meadows are globally extensive nearshore ecosystems known as coastal engineers that provide key ecological services in coastal areas such as attenuating wave and turbulence and promoting sediment deposition. ...
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 ...
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 ...
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, ...
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 ...
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, ...
Deltell, Àlex (Date of defense: 2020-09-07)
Magnetic memory alloys are a subset of shape memory materials that respond to the application of external magnetic fields. These materials are currently gaining more and more interest, given their properties, for use in ...
Zaara, Kaouther (Date of defense: 2023-11-03)
This thesis dissertation discusses the microstructure, thermal behavior, magnetic and mechanical properties of some Fe-based alloys and a high entropy alloy (HEA) in the form of mechanically alloyed powders or bulk solids, ...
Coll Riera, Rosa (Date of defense: 2014-11-13)
Els aliatges magnètics amb memòria de forma es caracteritzen per presentar tant la transformació estructural austenita – martensita com la magnètica (ferromagnetisme – paramagnetisme). El conjunt de propietats els fa ...
Sanchez Romero, Alejandro (Date of defense: 2016-06-06)
One of the most important radiative properties of aerosols is their optical thickness (AOD), which is closely linked to the total burden of atmospheric aerosols. On the contrary, we do avail of long time series of sunshine ...
Ben Mbarek, Wael (Date of defense: 2018-11-20)
This work is framed in the general context of the synthesis and characterization of Mn or Ca based alloys, which are subsequently applied in degradation processes of azo dyes used in the textile industries. The alloys were ...
Wederni, Asma (Date of defense: 2021-11-26)
Shape memory alloys witch exhibit magnetically induced phase transformations at room temperatures are the most interesting for magnetic cooling applications. Heusler type alloys (both stoichiometric and non-stoichiometric) ...
Pujol Company, M. Dolors (Date of defense: 2013-04-16)
Coastal zones are governed by physical forces originating from tidal currents, waves, winds and night convection, amongst others, and are characterized by the presence of canopy meadows. This thesis studies the hydrodynamic ...
García Rodríguez, Santiago (Date of defense: 2019-06-28)
This thesis investigates the impact response of novel laminates made with “thin-plies” as well as proposes a toughening method to improve their impact tolerance. To this purpose, we devised a wide experimental campaign ...