Now showing items 1-20 of 98

    Estudio de la influencia de los fenómenos de interacción suelo-estructura en la respuesta sísmica de estructuras típicas de acero con arriostramientos concéntricos 

    Guanchez Reyes, Edinson Asdrubal (Date of defense: 2024-10-15)

    (English) Steel concentrically braced frames (CBF) are considered efficient in resisting lateral forces because they provide high lateral strength and stiffness, which is particularly beneficial in seismic zones. However, ...

    Wall-bounded high-pressure transcritical turbulence at low Reynolds regimes 

    Bernades, Marc (Date of defense: 2024-12-16)

    (English) The supercritical miniaturization of wall-bounded turbulence has the potential to overcome the microfluidics energy frontier - small rates of mixing and transfer due to the laminar flow regimes induced, resulting ...

    Effects of cavitation on the wake characteristics behind blunt trailing edge hydrofoils 

    Chen, Jian (Date of defense: 2024-06-06)

    (English) The recent developments in hydraulic machinery will increase the possibility of damage resulting from cavitation and/or vortex-induced vibrations. Yet, many researchers have shed light on the vortex street flow ...

    Microfluidics for biosensing with additive manufacturing: simulation model and fabrication 

    Azizian, Pooya (Date of defense: 2024-04-22)

    (English) Over the last decade, biosensing has been moving towards the miniaturized and cost-effective point-of-care (POC) testing. Even though microfluidics is becoming a key enabling technology for POC testing, the need ...

    Contributions to meshless methodologies for the simulation of acoustic radiation and scattering problems 

    Fakhraei, Javad (Date of defense: 2024-04-19)

    (English) Meshless methodologies have emerged as a valuable tool in the field of computational acoustics, offering an efficient approach to model complex acoustic phenomena. These innovative numerical techniques offer a ...

    Contributions to dynamic pile-soil interaction modelling 

    Conto Quispe, Kenny Fernando (Date of defense: 2024-03-18)

    (English) The development of more accurate, computationally efficient and practical methodologies for a better understanding of dynamic soil-structure interaction and prediction of ground-borne vibration levels in the ...

    Optimization techniques in science planning for planetary exploration missions 

    Betriu Roure, Paula (Date of defense: 2024-10-23)

    (English) Solar System robotic missions explore objects in space to elicit key information that contributes to our understanding of the origins and evolution of the Solar System as well as of life. Noticeably, such an ...

    Design of service-purpose-vehicles through the sense of smell 

    Perarnau Ollé, Enric (Date of defense: 2024-07-02)

    (English) This thesis arose from the need to design new tools that enable a better control of indoor air quality in vehicles. Even though indoor air quality has been widely explored in buildings, this topic has often been ...

    Heat transfer in supercritical fluids: computational approaches & studies 

    Abdellatif, Ahmed Mohammed Abdelfattah (Date of defense: 2024-10-28)

    (English) This thesis delves into investigating the complexities of heat transfer in supercritical fluids through the application of advanced theoretical and computational methodologies. The research primarily focuses on ...

    Procesamiento mediante extrusión de material del termoplástico híbrido PLA/PHB: caracterización mecánica 

    Crupano, Walter (Date of defense: 2024-11-25)

    (English) In this thesis, the mechanical behavior of parts manufactured by Material Extrusion Modeling (MEX) has been evaluated, using a copolimer of polylactic acid (PLA) and polyhydroxybutyrate (PHB), commercially known ...

    Innovative modular pour plating microbiology culture media technology 

    Terrones Fernández, Inés (Date of defense: 2024-09-10)

    (English) The current methods used in microbiological quality analysis rely on the use of traditional and manual methods, such as the pour plate method. The need to perform more analyses of different matrices makes it ...

    Mimicking soft living tissues for 3D printed surgical planning prototypes using additive manufacturing technologies 

    Tejo Otero, Aitor (Date of defense: 2021-07-28)

    (English) Additive Manufacturing is the process of joining materials to make objects from a 3D model data, normally layer-upon-layer through series of some cross-sectional slices, as opposed to subtractive manufacturing ...

    Contribution to the manufacture of porous structures for prostheses by means of additive manufacturing extrusion processes 

    Bagheri, Ali (Date of defense: 2021-02-12)

    (English) In recent years, the use of prostheses has widely increased due to their ability to replace defective parts of the skeleton. Among artificial implants, hip joint plays a critical role in the human body since it ...

    Drive systems optimization in electric, hybrid and fuel cell vehicles 

    Alcázar García, Désirée (Date of defense: 2022-09-05)

    (English) We are currently immersed in the fourth industrial revolution that involves, among others, technology to prevent climate change, transformation of the transport sector, digitization and artificial intelligence. ...

    On the prediction of induced structural damage in hydraulic turbines in off-design conditions 

    Roig Bauzà, Rafel (Date of defense: 2024-01-15)

    (English) The introduction of the intermittent and unpredictable solar and wind power into the electrical grid is pushing hydraulic turbines to work for longer periods of time in off-design conditions. Under these ...

    Hemp crop waste for green solutions in construction: physical and mechanical characterization 

    Martínez Martínez, Borja (Date of defense: 2024-01-11)

    (English) The primary goal of this thesis is to unlock the potential of hemp stalk, an agricultural byproduct that currently lacks practical applications. The overarching aim is to promote the use of eco-friendly materials, ...

    Fractal approach to wheel-rail roughness contact theory 

    Babici, Laura Mariana (Date of defense: 2023-12-21)

    (English) In this study, the Weierstrass fractal function was used to model the surface roughness of railway tracks and, subsequently, the static coefficient of friction (COF) for Hertzian rail-wheel contact and cylinder-plane ...

    Machine-learning to promote better practices of low-cost wearable devices in tremor diseases 

    Loaiza Duque, Julián David (Date of defense: 2023-10-27)

    (English) The most common tremor disorders worldwide are Parkinson's Disease and Essential Tremor. The gold standard for diagnosing these movement disorders is medical evaluation by neurologists, but its accuracy depends ...

    Application of the vibration-assisted ball burnishing process on rotational symmetric parts to improve their fatigue strength and wear properties 

    Velázquez Corral, Eric (Date of defense: 2023-09-05)

    (English) This thesis is an experimental investigation into the beneficial effects of the ultrasonic vibration-assisted ball burnishing process on the wear resistance and fatigue life-cycle enhancement of rotational symmetric ...

    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 ...