Now showing items 561-580 of 5604

    Comportamiento térmico de cerramientos opacos verticales en edificios universitarios de Bahia (Brasil) 

    Santana, Bruno Oliveira (Date of defense: 2021-11-23)

    This thesis analyzes the wall’s thermal performance of learning spaces and its impact on cooling demand. Three classrooms are selected as case studies, each located on a different university campus in separate cities in ...

    Development of an active power filter based on wide-bandgap semiconductors 

    Lumbreras Carrasco, David (Date of defense: 2022-07-19)

    Electrical and electronic equipment needs sinusoidal currents and voltages to function properly. Equipment such as computers, household appliances, electric vehicle chargers, and LED lights can distort the grid and worsen ...

    Enhance OF SOGI-FLL and SOGI-PLL response to voltage sags and swells perturbations 

    Abdali Nejad, Sajad (Date of defense: 2022-07-19)

    The scope of this thesis is related to the enhancement of the operation of distributed generators (DGs) based on renewable energies (REs) when connected to the conventional grid network. Synchronization of those DGs, i.e. ...

    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 ...

    Contextualización de la enseñanza de las matemáticas en las carreras tecnológicas 

    López Díaz, María Teresa (Date of defense: 2022-07-22)

    The teaching of Mathematics has been always a matter of great concern at all academic levels and more especially in technological degrees. Both the contents of mathematical subjects and the way they are taught, have been ...

    Optimization on industrial problems focussing on multi-player strategies 

    Coma Company, Martí (Date of defense: 2022-07-26)

    Algorithms (EA) are useful optimization methods for exploration of the search space, but they usually have slowness problems to exploit and converge to the minimum with accuracy. On the other hand, gradient based methods ...

    Detection of particles, bacteria and viruses using consumer optoelectronic components 

    Hussain, Rubaiya (Date of defense: 2022-07-01)

    The focus of this thesis is on the design, development and validation of two novel photonic sensors for the detection and characterisation of industrial and biological samples. The first one is a PSA in a collimated beam ...

    Design and implementation of rural microgrids : Laguna Grande case study 

    Canziani Amico, Franco (Date of defense: 2022-07-22)

    In 2015 the United Nations established the 17 Sustainable Development Goals: a set of interrelated objectives and a guide to reach a more sustainable and higher quality future for all humanity. The goals were set with a ...

    Real-time high-performance computing for embedded control systems 

    Calderón Torres, Alejandro Josué (Date of defense: 2022-07-21)

    The real-time control systems industry is moving towards the consolidation of multiple computing systems into fewer and more powerful ones, aiming for a reduction in size, weight, and power. The increasing demand for higher ...

    Simulació 2D/3D de cèl.lules solars de silici de contactes posteriors 

    Carrió Díaz, David (Date of defense: 2022-07-25)

    In order to optimize photovoltaic conversion efficiency, various solar cell architectures based on monocrystalline silicon (c-Si) have emerged in the past. Solar cells with interdigitated back contacts IBC (Interdigitated ...

    Digital transformation and business models in maritime trade supply chains 

    Henríquez Larrazábal, Ricardo Daniel (Date of defense: 2022-07-18)

    rmation, and the adoption of certain business models in the context of the maritime trade supply chain industry. Most specifically, it enquires the impact that the former might have on the latter. The question’s relevance ...

    Comercialización de innovaciones disruptivas. Actividades e indicadores clave en la fase de aceleración 

    Nieto Cubero, Javier (Date of defense: 2022-07-05)

    Context. The current industrial and corporate ecosystem is heavily conditioned both by the technological advances and by the existence of globalized and interconnected markets. Consequently, this makes it highly dynamic ...

    La Seu Episcopal d’Ègara : el projecte d’un conjunt cristià al segle V 

    González Pérez, Francisco Javier (Date of defense: 2022-07-19)

    The aim of this research about built heritage is to understand how were the buildings placed in the monumental ensemble of Saint Peter of Terrassa configured, from middle 5th century to second half of the 6th century. To ...

    Mobile 5G millimeter-wave multi-antenna systems 

    Ballesteros Sánchez, Christian (Date of defense: 2022-07-21)

    Massive antenna architectures and millimeter-wave bands appear on the horizon as the enabling technologies of future broadband wireless links, promising unprecedented spectral efficiency and data rates. In the recently ...

    Efficient sharing mechanisms for virtualized multi-tenant heterogeneous networks 

    Vincenzi, Matteo (Date of defense: 2022-07-18)

    The explosion in data traffic, the physical resource constraints, and the insufficient financial incentives for deploying 5G networks, stress the need for a paradigm shift in network upgrades. Typically, operators are also ...

    Multiscale clutch models for cell mechanics 

    Venturini, Chiara (Date of defense: 2022-07-22)

    Integrin-based cell adhesion is a key mechanism in fundamental biological processes such as cell migration and wound healing, and in diseases like osteoporosis and cancer. For example, during migration, cells form adhesion ...

    Remaining useful life and fault detection models for high voltage electrical connectors focused on predictive maintenance 

    Martínez Reyes, Jimmy Arturo (Date of defense: 2022-07-08)

    In recent years, industries have chosen to invest in technology with the aim of making their processes more efficient and thus offering market products of higher quality. Nowadays it is very common for companies to use ...

    Network-based ionospheric gradient monitoring to support ground based augmentation systems 

    Caamaño Albuerne, María (Date of defense: 2022-07-12)

    The Ground Based Augmentation System (GBAS) is a local-area, airport-based augmentation of Global Navigation Satellite Systems (GNSSs) that provides precision approach guidance for aircraft. It enhances GNSS performance ...

    Controlling interactions in quantum materials : from a microscopic description to quantum simulation 

    Julià Farré, Sergi (Date of defense: 2022-06-28)

    The last decades have witnessed impressive technical advances in all the fields of quantum science, including solid-state systems or atomic, molecular, and optical physics, allowing one to control materials at the microscopic ...

    Causal inference and forescasting methods for climate data nalysis 

    Silini, Riccardo (Date of defense: 2022-07-05)

    To advance time series forecasting we need to progress on multiple fronts. In this thesis, we develop algorithms to identify causal relations which allow to identify the driving processes containing useful information for ...