Now showing items 106-125 of 341

    Ecological and functional role of small and medium pelagic fish in the northwestern Mediterranean Sea : Rol ecológico y funcional de los peces pelágicos pequeños y medianos en el noroeste del mar Mediterráneo 

    Albo-Puigserver, Marta (Date of defense: 2019-10-18)

    Mediterranean marine ecosystems are fundamentally driven by their pelagic communities and small and medium-size pelagic fishes (SMPF) play crucial ecological roles. Although fluctuations of the populations of these organisms ...

    Ecological study of benthic communities in the continental shelf and upper slope in the Menorca Channel (North Western Mediterranean) 

    Grinyó Andreu, Jordi (Date of defense: 2016-10-17)

    Technological development and increased availability of remotely operated vehicles and manned submersibles have significantly increased accessibility to deep environments revealing the presence of rich and diverse macrobenthic ...

    Ecosystem modelling in the Eastern Mediterranean Sea : the cumulative impact of alien species, fishing and climate change on the Israeli marine ecosystem 

    Corrales Ribas, Xavier (Date of defense: 2019-03-21)

    Firstly, I reviewed modelling approaches that were used to assess the impact of invasive alien species (IAS) in aquatic ecosystems. According to the review, multispecies/ecosystem mechanistic models dominated the applications, ...

    Efecto de las condiciones de fabricación en las propiedades de las mezclas bituminosas recicladas 

    Pérez Madrigal, Domingo (Date of defense: 2018-06-20)

    The use of bituminous material milled from the pavement (known as Reclaimed Asphalt Pavement, or RAP) in the manufacture of recycled bituminous mixtures is growing day by day due to the economic and environmental benefits ...

    Efecto del envejecimiento y de la acción del agua en la fisuración de las mezclas asfálticas 

    López Montero, Teresa (Date of defense: 2018-06-19)

    Asphalt mixtures cracking is one of the most common deterioration mechanisms in flexible pavements. This phenomenon is due to both the application of loads and the degradation of the material as a result of its exposure ...

    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 ...

    Effect of thermal cycles on rock massif stability 

    Villarraga Díaz, Claudia Juliana (Date of defense: 2018-02-28)

    The environmental conditions may play a relevant role in the stability of rock slopes. In fact, weathering can contribute to the reduction of strength of the material, while atmospheric actions may increase internal stresses ...

    Effects of atmospheric deposition on microbial dynamics and composition in two anthropogenically-influenced contrasted coastal sites 

    Marín Beltrán, Isabel (Date of defense: 2017-07-21)

    The Mediterranean Sea is an oligotrophic basin, while the atmosphere above is affected by continuous emissions of anthropogenic aerosols and episodic Saharan dust events. These atmospheric inputs finally deposit (as wet ...

    Efficient computational mesoscale modeling of concrete under cyclic loading 

    Titscher, Thomas (Date of defense: 2019-09-27)

    Concrete is a complex material and can be modeled on various spatial and temporal scales. While simulations on coarse scales are practical for engineering applications, a deeper understanding of the material is gained on ...

    Efficient simulation tools for real-time monitoring and control using model order reduction and data-driven techniques 

    Quaranta, Giacomo (Date of defense: 2019-09-02)

    Numerical simulation, the use of computers to run a program which implements a mathematical model for a physical system, is an important part of today technological world. It is required in many scientific and engineering ...

    Ejecución de túneles en terreno deltaico mediante tuneladora EPB : el caso de la línea 9 

    Yubero de Mateo, Maria Teresa (Date of defense: 2021-07-22)

    The urban tunneling may generate significant problems. One of the main concerns is the unavoidable ground movements generated; before, during and after the tunneling operations. In this context, the objective of this Thesis ...

    El arte de la ingeniería, la ingeniería de la arquitectura, la arquitectura del ingeniero : arte, concepto y lenguaje en el proyecto 

    Fernández González, Mario, 1970- (Date of defense: 2019-07-25)

    This PhD thesis aims to analyse and verify the tense and intense relation that is established between the architecture, civil engineering and art worlds. Such analysis is conducted not only in a formal manner, but also at ...

    Els fluxos d'energia en el sistema acoblat oceà-atmosfera i el seu impacte en el clima de la Terra 

    Roca i Sans, Josep-Miquel (Date of defense: 2020-11-12)

    This thesis aims to develop simple models that allow evaluating the relevance of the principal parameters that condition the energy flows in the ocean-atmosphere system, and how changes in these parameters impact the climate ...

    Energy and material circularity in building-integrated agriculture : an environmental approach 

    Muñoz Liesa, Joan (Date of defense: 2022-07-20)

    (English) Cities are great resource consumers and largely contribute to anthropogenic environmental impacts, urgently requiring a decarbonization plan. Urban agriculture lies on industrial ecology principles; waste resources ...

    Enhancing building performance : a Bayesian network model to support facility management 

    Bortolini, Rafaela (Date of defense: 2019-02-28)

    The performance of existing buildings is receiving increased concern due to the need to renovate the aging building stock and provide better quality of life for end users. The conservation state of buildings and the indoor ...

    Environmental impact accounting of organic agricultural production systems: advancing inventory and biodiversity modelling approaches in life cycle assessment 

    Montemayor, Erica Yvonne (Date of defense: 2022-11-24)

    (English) Agriculture not only contributes to more than a quarter of all global greenhouse gas emissions but is also the number one anthropogenic source of nitrogen emissions and a danger to nearly half of threatened ...

    Error estimation and adaptivity for PGD solutions 

    Reis, Jonatha Oliveira de Matos (Date of defense: 2020-12-29)

    A significant part of the current research efforts in computational mechanics is focused on analyzing and handling large amounts of data, exploring high dimensional parametric spaces and providing answers to increasingly ...

    Estudio de la escoria de acería de HAE: aspectos expansivos y ambientales 

    Otegi Aldai, Karmele (Date of defense: 2019-06-10)

    Electric Arc Furnace Slag (EAFS) is the by-product generated in the steel making process in electric arc furnaces. According to the European slag association, EUROSLAG, 18,4Mt of steel slag have been reported, of which ...

    Estudio del comportamiento de colapso en arenas arcillosas bajo un estado generalizado de tensiones 

    Cárdenas Díaz, Octavio Enrique (Date of defense: 2018-10-19)

    This thesis studies the hydro-mechanical behaviour of a compacted clayey sand under generalised stress state. The study, which is mainly experimental, focuses on the analysis of the shear strength at different hydraulic ...

    Estudio del comportamiento del suelo en el rango de las pequeñas deformaciones y desarrollo del modelo constitutivo EPHYSS 

    Castellón López, Javier (Date of defense: 2020-02-18)

    Soil behavior in the range of small strains should be considered in the analysis of geotechnical problems when sensitive elements are affected, which is very common in urban environments. However, some of the tests that ...