Now showing items 1-20 of 150

    Multiscale subsurface characterization for geo-energy applications 

    Sciandra, Dario (Date of defense: 2024-02-09)

    (English) Geological Carbon Storage (GCS) holds immense promise for mitigating atmospheric CO2 emissions, making the sealing capacity of caprocks pivotal as storage scales up. Despite excellent sealing capacities observed ...

    Unfittted finite element methods for explicit boundary representations 

    Martorell Pol, Pere Antoni (Date of defense: 2024-02-21)

    (English) This thesis covers the development of large-scale numerical methods for the simulations of partial differential equations on arbitrarily complex geometries. The target application of this thesis is the structural ...

    Framework for an eXtended Reality (XR) solution for holistic safety management in construction 

    Muñoz La Rivera, Felipe (Date of defense: 2023-03-28)

    (English) Cycles in the construction sector and economy disguise what appears to advance in occupational risk prevention when, unfortunately, the AECO sector maintains very high accident rates. The zero accident target is ...

    A novel arbitrary Lagrangian Eulerian framework for large strain solid dynamics 

    Giusto, Thomas B. J. di (Date of defense: 2024-01-24)

    (English) In the realm of Computer-Aided Engineering applied to fast solid dynamics, the intricate mechanical behaviours exhibited by materials when subjected to strong dynamic forces, high speed impacts and complex ...

    Multi-port container traffic analysis using Data Science tools: an application to Yangtze River Delta (China) 

    Huang, Dong (Date of defense: 2023-12-19)

    (English) As a crucial node of maritime transportation, seaports carry more than 90% of global trade. Considering the complexity of a port system, even slight improvement at strategical and operational decision levels will ...

    Understanding and mitigating the post-injection seismicity induced by fluid injection in enhanced geothermal systems 

    Boyet, Auregan (Date of defense: 2024-01-31)

    (English) Induced seismicity due to hydraulic stimulation and circulation is a hurdle for the development of Enhanced Geothermal Systems (EGS). The monitored seismicity has occasionally reached magnitudes large enough to ...

    Process understanding of induced seismicity during stimulation of enhanced geothermal systems 

    Vaezi Anzeha, Iman (Date of defense: 2023-12-21)

    (English) This doctoral thesis investigates the causes that induce (micro)seismicity as a result of hydraulic stimulation in fractured low-permeability rock. Understanding such phenomenon is of paramount importance to ...

    Sistema de evaluación y priorización de inversiones públicas 

    Boix Cots, David (Date of defense: 2023-12-15)

    (English) This doctoral thesis addresses one of the most significant challenges facing the Spanish administration: the efficient selection and management of public investments. To achieve this goal, the 'Public Investment ...

    Novel tools for port environmental management systems 

    Morell Villalonga, Mariano Nicolás (Date of defense: 2023-11-24)

    (English) This thesis addresses the development and evaluation of novel tools and strategies for Environmental Management Systems (EMS) implementation in ports for water quality. Integrating computer vision-based systems ...

    A methodology for the design, implementation and evaluation of community and impact-based flood warnings 

    Meléndez Landaverde, Erika Roxana (Date of defense: 2023-11-13)

    (English) The present thesis focuses on developing, implementing, and evaluating a comprehensive community and impact-based early warning system (EWS) framework to support the protection actions of authorities and citizens ...

    Design, management, and simulation of mixed station-based and free-floating vehicle-sharing systems 

    Jiménez Meroño, Enrique (Date of defense: 2023-11-15)

    (English) This thesis provides tools, based on mathematical modelling, for the analysis, optimization and simulation, of vehicle-sharing systems. The thesis addresses various implementation levels of such systems, from ...

    Sedimentación fina y corrientes de turbiedad en embalses. Caso de estudio: Embalse Amaluza (Ecuador) 

    Larriva Villarreal, Hernán Javier (Date of defense: 2023-11-06)

    (English) Turbidity currents in reservoirs are of strong scientific interest because they can be responsible for the contribution of large amounts of fine sediments that can cause early sediment filling. The case study ...

    Quick assessment through analytical solutions of induced seismicity in geo-energy applications 

    Wu, Haiqing (Date of defense: 2023-07-28)

    (English) Understanding the triggering mechanisms of induced seismicity remains one of the most critical challenges in geo-energy applications. This Thesis aims at assessing (1) fault stability and induced seismicity ...

    Topology optimization of incompressible structures for fluid-structure interaction problems 

    Castañar Pérez, Inocencio (Date of defense: 2023-07-24)

    (English) Topology optimization of incompressible structures, in which the loads on the structure come from the stresses exerted by a surrounding fluid, is a highly complex problem. This work presents a compilation of the ...

    Assessment of groundwater hydrology of the Quaternary aquifer of Lake Chad Basin 

    Salehi Siavashani, Nafiseh (Date of defense: 2023-07-07)

    (English) This thesis aims to enhance the conceptual model of the Lake Chad Basin's quaternary aquifer by gathering updated hydrological, geological, meteorological, and groundwater data. Objectives include analyzing natural ...

    Experimental velocity profile distribution characterization of mountain rivers 

    Marin-Esteve, Blanca (Date of defense: 2023-05-18)

    (English) The aim of this thesis is to improve our understanding of the behaviour of mountain rivers and to predict their morphological functioning under conditions of low relative submergence. Mountain rivers have received ...

    Metodología para estimación del daño sísmico en edificios en base a modelos numéricos avanzados y monitorizaciones RAR 

    Cabrera Vélez, Esteban Marcelo (Date of defense: 2023-02-16)

    (English) In post-seismic scenarios, the rapid and safe evaluation of structural damage is essential to develop an effective response during the recovery, rehabilitation and reconstruction stages. The development of new ...

    New updated reference Lagrangian smooth particle hydrodynamics framework for large strain solid dynamics ans its extension to dynamic fracture 

    Refachinho de Campos, Paulo Roberto (Date of defense: 2022-09-27)

    (English) This work presents a new updated reference Lagrangian Smooth Particle Hydrodynamics (SPH) algorithm for the analysis of large deformation by introducing a novel system of first order conservation laws. Both ...

    Finite element simulation of additive manufacturing with enhanced accuracy 

    Moreira Filho, Carlos Augusto (Date of defense: 2022-07-21)

    This thesis develops numerical methods to improve the accuracy and computational efficiency of the part-scale simulation of Additive Manufacturing (AM) (or 3D printing) metal processes. AM is characterized by multiple ...

    Model order reduction methods for sensor data assimilation to support the monitoring of embankment dams 

    Nasika, Christina (Date of defense: 2022-06-28)

    The latest monitoring and asset management technologies for large infrastructures involve digital representations that integrate information and physical models, exist in parallel to the real-life structures, and are ...