Now showing items 301-320 of 5599

    Metodologia integral de perfilat ràpid intel·ligent i interpretable pel suport a la presa de decisions complexes (MIPRI2D). Aplicacions a sostenibilitat 

    Angerri Torredeflot, Xavier (Date of defense: 2023-07-25)

    (English) Living in the era of big data and artificiall intelligence this thesis wants to contribute with a new methodology to support data-driven decisions rapidly after data collection, and a technological infrastructure ...

    Leveraging graph neural networks for optimization and traffic compression in network digital twins 

    Almasan Puscas, Felician Paul (Date of defense: 2023-07-17)

    (English) In recent years, several industry sectors have adapted the Digital Twin (DT) paradigm to improve the performance of physical systems. This paradigm consists of leveraging computational methods to build high-fidelity ...

    Hardware/software solutions to enable the use of high-performance processors in the most stringent safety-critical systems 

    Alcaide Portet, Sergi (Date of defense: 2023-07-19)

    (English) Future Safety-Critical Systems require a boost in guaranteed performance in order to satisfy the increasing performance demands of the state-of-the-art complex software features. Ar1 approach to achieve these ...

    Contributions to IPv6 support over low rate low power wireless networks 

    Aguilar Romero, Sergio (Date of defense: 2023-07-06)

    (English) The main objective of this thesis is contributing to IPv6 support over Low Rate Low Power Wireless Networks (LRLPWNs). One family of LRLPWNs is Low Power Wide Area Networks (LPWANs), which includes technologies ...

    Design and multiparameter optimization of a multiphase SiC converter with operation under faults applied to an electric traction system 

    Acosta Cambranis, Fernando Geovany (Date of defense: 2023-07-11)

    (English) Greater interest in multiphase electrical systems has led to their increased use in electric traction, renewable energy generation, energy transmission, and various industrial applications. This growing interest ...

    Structural performance of continuous composite bridges with partial shear connection and double composite action 

    Su, Hang (Date of defense: 2023-06-19)

    (English) The steel-concrete composite structural solution has been widely applied in the execution of simply supported bridges since the merits of concrete compressive strength and steel tensile strength can be efficiently ...

    Periferia y ciudad. El caso del Baix Llobregat en Barcelona 

    Roa López, Miquel (Date of defense: 2023-06-26)

    (English) The urban continuum of Barcelona extends through the Baix Llobregat, the mobility also forms an inseparable whole, the same happens with the economy, with social and cultural life; geography and the environment ...

    Intelligent secondary control for energy management in a micro-grid by using multi-agent system 

    Selseleh Jonban, Mansour (Date of defense: 2023-06-09)

    (English) Nowadays, distributed energy resources are widely used to supply demand in micro grids especially in green buildings. These resources are usually connected by using power electronic converters, which act as ...

    Artificial intelligence, LiDAR and co-operative remote sensing for atmospheric observation and off-shore wind energy 

    Salcedo Bosch, Andreu (Date of defense: 2023-06-30)

    (English) Remote sensing of the atmosphere is widely used by the wind energy industry to both assess future wind farms deployment sites as well as to improve their operation. With the rising interest in offshore wind energy, ...

    Nonlinear optics at nanoscale: frequency conversion at interfaces 

    Rodríguez Suñé, Laura (Date of defense: 2023-06-19)

    (English) The use of semiconductors, metals, or ordinary dielectrics in the process of fabrication of nanodevices is at the front edge of nowadays technology. In the last decade an impressive technological progress has ...

    Masía urbana: el papel arquitectónico y urbanístico de la masía en el área suburbana de Barcelona durante el siglo XX 

    Park, Jeongsoo (Date of defense: 2023-06-27)

    (English) This thesis is based on a new concept of the ‘Urban Masia’ applied to the city of Barcelona between from the 1860s to the present. *(Although ‘‘masia’’ usually translated as 'farmhouse' in many cases, this term ...

    Unstable motions in the three body problem 

    Paradela Díaz, Jaime (Date of defense: 2023-06-30)

    (English) The 3 Body Problem (3BP) models the motion of three bodies interacting via Newtonian gravitation. It is called restricted when one body has zero mass and the other two, the primaries, have strictly positive masses. ...

    Theory and computation of multiscale epithelial mechanics : from active gels to vertex models 

    Ouzeri, Adam Amine (Date of defense: 2023-06-14)

    (English) Epithelial monolayers perform a variety of mechanical functions, which include maintaining a cohesive barrier or developing 3D shapes, while undergoing stretches over a wide range of magnitudes and loading rates. ...

    Una nueva perspectiva del modelado y control de microrredes eléctricas y convertidores de potencia 

    Alfaro Aragón, Carlos Arturo (Date of defense: 2022-06-28)

    (English) This doctoral thesis focuses on the modeling and control of electrical microgrids and triphasic converters. The starting points of this research work are based on previous work on modeling electrical microgrids ...

    Discrete operators and distances on subdivision networks 

    Monsó Burgués, Enrique P.J. (Date of defense: 2022-10-20)

    (English) The research we have carried out lies within the domain of diffusion problems for elliptic operators that are defined on discrete structures called networks, that are graphs that are capable of discriminating ...

    Experimental and numerical analysis of the unsaturated soil shrinkage and swelling behaviour under different compaction conditions 

    Najdi, Abdallah (Date of defense: 2023-06-20)

    (English) The thesis presents part of an ongoing nvestigation on the Thermo-Hydro-Mechanical (THM) behaviour and cracking of deformable unsaturated soils undergoing cycles of drying and wetting. An experimental approach ...

    Active flow control optimization on Selig Donovan 7003 airfoil 

    Monshi Tousi, Navid (Date of defense: 2023-06-16)

    (English) The PhD focuses on the study of the flow around an airfoil at different Angles of Attack (AoA) with and without the implementation of Active Flow Control (AFC), while maintaining the Reynolds number constant at ...

    La terre crue à l’épreuve des ambiances sonores : un dialogue entre la mesure physique et les expériences sensibles. 

    Miranda Santos, Marta (Date of defense: 2022-12-14)

    (English) Raw earth provides important environmental benefits, such as low embodied energy, lower greenhouse gas emissions, and infinite reversibility. Today, these already well-known benefits are boosting interest in ...

    Flexoelectricity at surface instabilities and stress singularities 

    Mohammadi, Hossein (Date of defense: 2023-06-16)

    (English) The flexoelectric effect, the two-way linear coupling between strain gradient and electric polarization (direct flexoelectricity) or electric field gradient and strain (converse flexoelectricity) universally ...

    Highly percolated ultra-thin metal films for reconfigurable metasurfaces 

    Martínez Cercós, Daniel (Date of defense: 2023-06-21)

    (English) There is currently significant scientific and technological interest in ultrathin materials, with at least one dimension in the nm range or even smaller, since they possess features not achievable with their ...