Now showing items 821-840 of 5606

    Enhancement of pedestrian comfort in the hot climate city of Jeddah 

    Masoud, Badia Ghassan (Date of defense: 2021-11-03)

    The ancient cities of hot arid climates, founded and grew linked to pedestrian mobility, followed a preferably compact growth pattern until the beginning of the 20th century. The resulting urban form impacted urban ...

    Light harvesting and energy efficiency in perovskite solar cells and their applications 

    Martínez-Denegrí Sánchez, Guillermo (Date of defense: 2021-09-29)

    The environmental issues associated with the use of conventional fuels necessitates the utilisation of renewable energy sources, as well as the implementation of energy efficient designs, in order to decrease electricity ...

    Machine learning assisted QoT estimation for optical networks optimization 

    Mahajan, Ankush (Date of defense: 2021-09-28)

    The tremendous increase in data traffic has spurred a rapid evolution of the optical networks for a reliable, affordable, cost effective and scalable network infrastructure. To meet some of these requirements, network ...

    Enhanced quality of service mechanisms for 5G networks 

    Irazabal Bengoa, Mikel (Date of defense: 2021-09-10)

    The heterogeneous services with stringent requirements that are envisioned to co-exist under the fifth generation of cellular networks (5G), inexorably challenge the current Long-Term Evolution (LTE) cellular network’s ...

    Dynamics of ultrafine particles and tropospheric ozone episodes 

    Carnerero Quintero, Cristina (Date of defense: 2021-09-30)

    Atmospheric aerosol particles, particularly ultrafine particles (UFPs; particles with less than 100 nm in diameter), and tropospheric ozone (O3) are atmospheric pollutants highly influenced by photochemical reactions, i.e., ...

    Daño sísmico y propiedades modales en estructuras de edificación 

    Alva Bañuelos, Rodrigo Esteban (Date of defense: 2021-09-17)

    The time required to inspect damaged structures after an earthquake has a direct impact on the social and economic consequences of the event, which can be catastrophic. Developing tools to aid the inspection task is of ...

    Resource allocation and management under priorities based on the squatting-kicking model for multi-slice 5G networks 

    Hamouda, Ahmed Mohamed Abdelaty Elmekkawi (Date of defense: 2021-09-30)

    The upcoming Beyond Fifth Generation networks aim to meet network services characterized by low latency and high reliability among others in different slices to provide a high-quality user experience. However, existing ...

    Development and evaluation of a street-scale air quality modelling system for the city of Barcelona 

    Benavides, Jaime (Date of defense: 2020-02-18)

    Air pollution is known to cause detrimental health effects in cities and specially on the most vulnerable population. Having access to reliable air pollutant concentration data at street-level in urban areas can be crucial ...

    Antioxidant properties and applications of pecan (Carya illinoinensis) 

    Villasante Dueñas, Juliana (Date of defense: 2021-02-18)

    At the present time, the environmental challenges are the second concern on a global level, and the first one in some countries. This is one of the main reasons behind the recent boost of new methods of production within ...

    Optimal control prediction of assisted walking using torque-driven models : application to active orthosis simulation to assist individuals with spinal cord injury 

    Febrer Nafría, Miriam (Date of defense: 2020-11-25)

    Walking impairment after spinal cord injury leads to a decreased quality of life, other serious health conditions, and substantial health care costs. Consequently, gait restoration is a high priority among spinal cord-injured ...

    Estudio numérico del ataque ácido por CO2 en cementos de pozos de petróleo sellados 

    Martínez Estévez, Ariadna (Date of defense: 2020-06-29)

    In order to cope with the serious and urgent problem of global warming, it is imperative to reduce the impact of CO2 emissions in the atmosphere. One of the alternatives proposed involves the injection of the CO2 in deep ...

    Aportación al análisis de la distribución de corriente del rayo en palas de aerogenerador equipadas con fibra de carbono 

    Rey Fernández, José Antonio (Date of defense: 2021-08-04)

    This doctoral thesis investigates the current distribution in a wind turbine blade when it is struck by lightning. The thesis focuses on the problem of current distribution in blades with carbon fiber spar caps. In the ...

    Advances in planning and control for autonomous vehicles 

    Alcalá Baselga, Eugenio (Date of defense: 2020-03-24)

    This thesis presents some advances to the state of the art of state estimation, automatic control and trajectory planning fields applied to autonomous vehicles. Such contributions have a common aspect throughout the thesis, ...

    Graph data warehousing 

    Ghrab, Amine (Date of defense: 2020-10-29)

    Over the last decade, we have witnessed the emergence of networks in a wide spectrum of application domains, ranging from social and information networks to biological and transportation networks. Graphs provide a solid ...

    Spectral control methods and applications for multi-channel LED light engines 

    Llenas Farràs, Aleix (Date of defense: 2019-12-04)

    Lighting installations are usually static and based on long-standing visual indicators such as colour temperature, colour rendering, and illuminance values. However, we now know that spectral variations in light elicit ...

    Memorias de la ciudad sin historia : la importancia de los afectos en la construcción y en las vivencias del barrio de La Mina 

    Aubán Borrell, Mónica (Date of defense: 2021-07-15)

    In 1959, in the context of urban growth promoted by the ‘Plan Comarcal’, the so-called ‘Plan Parcial de La Mina’ was approved, and a new neighbourhood was expected to be built on the right bank of river Besòs area. However, ...

    Fashion discovery : a computer vision approach 

    Rubio Romano, Antonio (Date of defense: 2021-07-23)

    Performing semantic interpretation of fashion images is undeniably one of the most challenging domains for computer vision. Subtle variations in color and shape might confer different meanings or interpretations to an ...

    Memoria biocultural del conocimiento ancestral del agua para la resiliencia comunitaria : casos de estudio Embera-Katios y Zenúes (Colombia) 

    Moreno Barros, Ángela María (Date of defense: 2021-07-14)

    The present research titled: “BIOCULTURAL MEMORY OF THE ANCESTRAL KNOWLEDGE OF WATER FOR COMMUNITY RESILIENCE. CASE STUDIES EMBERA-KATIOS Y ZENÚES (COLOMBIA) ”, has the general objective of documenting ...

    Convergence of deep learning and high performance computing: challenges and solutions 

    Njoroge Kahira, Albert (Date of defense: 2021-07-30)

    Deep Learning has achieved outstanding results in many fields and led to groundbreaking discoveries. With the steady increase in datasets and model sizes, there has been a recent surge in Machine Learning applications in ...

    Fundamentos de la morfogénesis de tensoestructuras: Membrane House 

    Arnaiz Barrio, Beatriz (Date of defense: 2021-07-30)

    The fundamental objective of this thesis is to delve into the process of generating the shape of tensioned membrane structures, from the conjunction of the theoretical foundations presented and practical experimentation, ...