Universitat Politècnica de Catalunya: Recent submissions
Now showing items 1-20 of 5896
Study on rock fragmentation mechanism and ball loading parameter matching in ball mill
(English) Abstract Rock fragmentation in ball mills is a key topic in rock mechanics with broad scientific and engineering significance. However, the understanding of the mechanical mechanisms and ball loading optimization ...
Surface modification treatments to enhance the performance of titanium backplate in keratoprosthesis
(English) The cornea is the outermost layer of the eye, essential for vision as it provides protection and contributes 80% of the eye’s refractive power. Its transparency and lack of blood vessels are key to its function, ...
Photon counting with a single neutral atom: quantum efficiency, dark counts, and background rejection
(English) This thesis studies the use of a single trapped neutral 87Rb atom as a photon counter. Detection of quantum jumps (QJs), i.e., abrupt changes between atomic states observable by a change in atomic fluorescence, ...
Development of a fuzzy logic-based algorithm for stroke detection in non-contrast computed tomography images
(English) The present work addresses the problem of early stroke detection, not only from the perspective of detection accuracy, but also focusing on computational efficiency, considering the limited availability of ...
Nanocavities and molecules: polaritons and their dynamic interactions
(English) This thesis investigates light-matter interactions within plasmonic nanocavities, using ultra- confined optical environments to observe and control molecular dynamics at the nanoscale. Plasmonic cavities, formed ...
Microfluidics for sweat monitoring
(English) This thesis began with the goal of revolutionizing continuous monitoring through the use of sweat. Over the course of this research, the field of sweat monitoring has evolved significantly, being consolidated as ...
Development of metal-enhanced TiO2-based photocatalysts for hydrogen production
(English) Human activity has led to rising greenhouse gas levels, altering climate patterns and intensifying weather events. Therefore, a transition to a decarbonized energy system is needed, with hydrogen as a promising ...
Data integration of longitudinal single-cell with multi-omics data to enable precision medicine for complex diseases
(English) Recent developments in high-throughput analysis technologies have transformed biomedical research by generating extensive longitudinal and heterogeneous multi-omics data, including transcriptomics, proteomics, ...
Graph-driven digital twins as assistants to bridge maintenance
(English) Bridges are vital components of transport infrastructure networks which are facing a widespread lack of resilience due to aging and changing environmental conditions. Finding more efficient methods for monitoring ...
Designing and development of secure protection strategies for distribution network integrated with distributed energy resources
(English) Global electricity generation increasingly incorporates Distributed Generation (DG) resources, such as solar and wind, into distribution systems (DS), offering benefits like improved reliability, power quality, ...
Thermo-hydro-mechanical-chemical impacts of high-temperature aquifer thermal energy storage
(English) High Temperature Aquifer Thermal Energy Storage (HT-ATES) involves the injection and extraction of non-isothermal fluids into aquifers and triggers thermo-hydro-mechanical-chemical processes. These processes must ...
Integration of spatial and temporal patterns for ecological environment management in river-riparian system
(English) Rivers are important carriers of water resources and important components of ecosystems. In some areas, rivers have been artificially narrowed, riparian areas have been encroached upon, riparian resources have ...
Control of a grid of multiple AC and DC sub-systems interconnected with power converters
(English) High Voltage Direct Current (HVDC) offers clear advantages for long distance electrical transmission. This is why its implementation is rising in the interconnection of remote renewable energy and interconnection ...
Mitigation of compound events in Barcelona: urban water scarcity, flood risk and reduction of surface temperatures through WSUD
(English) Climate change is bringing with it situations where droughts coexist with periods of extreme rainfall in many regions of the world. Surface temperatures are increasing due to more frequent drought periods. In ...
Multicriteria methodology for assessing the sustainability of last-mile electrification programs
(English) The sustainability-driven global energy transition requires ensuring universal access to electricity, particularly in last-mile rural areas. Renewable-based energy access programs are pivotal for fostering ...
Improving the characterisation of anthropogenic NMVOC emissions for air quality modelling
(English) Non-methane volatile organic compounds (NMVOC) are a large group of organic compounds emitted from various anthropogenic and natural sources. They impact health, with species like benzene classified as human ...
Numerical techniques for the solution of thermal problems in the context of geophysical inversions
(English) The thermal structure of the Earth’s interior contains key information for the understanding of geodynamic processes, including plate tectonics, mantle convection, and the Earth’s overall thermal evolution. In ...
Design and implementation of low-interference, high efficiency, power electronic-based power system for PV applications
(English) Nowadays, high step-up converters with fast-dynamic response are demanded for many applications such as uninterruptible power supplies which are used to feed sensitive loads and DC-DC converters in grid connected ...
The checkerboard problem in finite volume methods: origins, solutions, and applications in magnetohydrodynamics
(English) This thesis addresses the checkerboard problem in collocated Finite Volume Methods (FVM) for incompressible flows, a numerical issue caused by the decoupling of neighboring control volumes when using a collocated ...
Spatial and temporal dynamics of larval fish communities in relation to environmental variability in the NW Mediterranean
(English) The early developmental stages of fish, eggs and larvae, found in the planktonic environment are subject to a high mortality. Thus, the study of larval survival has been a key issue in fisheries science since the ...
