Now showing items 1-20 of 341

    Geochemical kinetics during CO2 sequestration : the reactivity of the Hontomín caprock and the hydration of MgO 

    Dávila Ordóñez, Maria Gabriela (Date of defense: 2015-11-06)

    A test site for CO2 geological storage is situated in Hontomín (Burgos, northern Spain) with a reservoir rock that is mainly composed of limestone. The reservoir rock is a deep saline aquifer, which contains a NaCl- and ...

    MPM modelling of landslides in brittle and unsaturated soils 

    Yerro Colom, Alba (Date of defense: 2015-11-10)

    Landslides and slope instabilities represent one of the most important problems in geotechnics causing significant damages around the world every year. Understanding the mechanics of the whole process is of particular ...

    Contribución al diseño eficiente de la configuración en planta de líneas de alta velocidad 

    Martín Cañizares, María del Pilar (Date of defense: 2015-11-16)

    Building a high-speed line requires significant investment and its design strongly influences the operation, with the aggravating circumstance that subsequent modifications not initially planned are not always feasible at ...

    Detección fina de cambios laterales en la geología superficial y en los suelos y caracterización de su influencia en la respuesta sísmica local : aplicación a Barcelona 

    Salinas Naval, Victor (Date of defense: 2015-11-25)

    A complete and reliable Seismic Soil Response prediction requires a thorough knowledge of the Geotechnical and Geological structure, as well as algorithms to find the transfer function. This fact entails a significant ...

    Backanalysis methodology based on multiple optimization techniques for geotechnical problems 

    Santos Rodríguez, Cristian de (Date of defense: 2015-12-10)

    Nowadays, thanks to the increase of computers capability to solve huge and complex problems, and also thanks to the endless effort of the geotechnical community to define better and more sophisticated constitutive models, ...

    Influence of ambient temperature on building monitoring in urban areas during the construction of tunnels for transportation 

    Lian, Zengzeng (Date of defense: 2015-12-14)

    A large number of underground works are under construction in several big cities around the world (London, Paris, Amsterdam, Beijing, Shanghai, Chicago, Caracas, Mexico D.F., and Riad, for instance): railway tunnels, water ...

    Xarxa ferroviària i sistema de ciutats 

    Álvarez Palau, Eduard (Date of defense: 2015-12-18)

    The relationship between the railway network and the city system has been the subject of numerous studies in recent decades. The railway has assumed great importance as a key element of transport infrastructure for the ...

    Efectos de la microestructura en el comportamiento hidromecánico de suelos compactados 

    Mora Ortiz, René Sebastián (Date of defense: 2016-03-03)

    The microstructure, understood as the distribution of pore sizes and their connectivity, is an important factor that affects the mechanical behaviour and the hydraulic properties of compacted soils with fine fraction (silts ...

    Transport of water, vapour, heat and solutes in concrete for storing radioactive waste 

    Chaparro Sánchez, M. Carme (Date of defense: 2016-03-04)

    Cementitious materials are used as barriers in radioactive waste storage. Hence, transport processes in this kind of material are important. The objective of this thesis is to improve the understanding of transport of water ...

    GIS platform for management of shallow geothermal resources 

    García Alcaraz, María del Mar (Date of defense: 2016-03-04)

    This thesis promotes an efficient use of shallow geothermal energy by means of an integrated management system to organize its exploitation. Shallow geothermal energy is a renewable resource based on thermal energy exchange ...

    Modeling of droplet dynamics in a proton exchange fuel cell electrode channel 

    Jarauta Arabi, Àlex (Date of defense: 2016-03-30)

    Fuel cells are promising alternatives to conventional energy conversion devices. Cells fueled with hydrogen are environmentally friendly and their effciency is up to 3 times higher than that of high-temperature combustion ...

    Computational multiscale analysis of masonry structures 

    Petracca, Massimo (Date of defense: 2016-04-13)

    Masonry is an ancient building material that has been used throughout the history, and it is still used nowadays. Masonry constitutes the main building technique adopted in historical constructions, and a deep understanding ...

    Characterization and modelling of previous concrete 

    Pieralisi, Ricardo (Date of defense: 2016-04-13)

    Pervious concrete is a special material with high permeability usually obtained by reducing the amount of fine aggregates in the composition of concrete. The properties of pervious concrete not only depend on its composition ...

    Diseño de una nueva barrera continua de hormigón "in situ" 

    Cañas Gallart, Jordi (Date of defense: 2016-04-19)

    Pervious concrete is a special material with high permeability usually obtained by reducing the amount of fine aggregates in the composition of concrete. The properties of pervious concrete not only depend on its composition ...

    Measuring impact loads on rigid coastal structures 

    Marzeddu, Andrea (Date of defense: 2016-04-19)

    The aim of this work is the study of laboratory effects on the measurement of wave impact induced loads on rigid maritime structures. A high number of experiments (more then 4000 using regular wave attacks) have been carried ...

    Microalgae harvesting in wastewater treatment plants : application of natural techniques for an efficient flocculation 

    Gutiérrez Martínez, Raquel (Date of defense: 2016-05-03)

    Research of new sources of bioenergy is nowadays driving attention to microalgae. Cost-effective biomass harvesting poses a challenge for full-scale microalgae production for biofuels. In the context of wastewater treatment ...

    The structure and dynamics of complex microbe-host interaction networks 

    Björk, Johannes (Date of defense: 2016-06-03)

    Microbes form intricate and intimate relationships with most animals and plants, many of which are crucial for host development, health and functioning. Microbe--host symbiotic associations are poorly explored in comparison ...

    Evaluation of the effects of recycled aggregates on the properties of high performance concrete 

    Gonzàlez Corominas, Andreu (Date of defense: 2016-06-21)

    In recent decades, the use of High Performance Concrete (HPC) has grown vastly, being used in multiple applications with high requirements. However, the use of recycled aggregates (RA) has been mostly limited to conventional ...

    Characterization of hydrological processes in a Mediterranean mountain research catchment by combining distributed hydrological measurements and environmental tracers 

    Roig Planasdemunt, Maria (Date of defense: 2016-06-27)

    The main objective of this thesis is to characterize hydrological processes in a Mediterranean mountain catchment, by combining distributed hydrological measurements and environmental tracers in order to improve the ...