Universitat Politècnica de Catalunya: Recent submissions
Now showing items 71-90 of 5946
Simple coherent technologies for next-generation edge optical networks
(English) Optical fiber communications have revolutionized the telecommunications networks in all segments, leveraging a wide set of advantages ranging from THz capacity to low-loss, security and form factor. In long-haul ...
Grid-forming strategies for renewable energy sources
(English) Modern power systems are increasingly integrating a larger share of renewable energy resources to mitigate climate change. These renewable resources are gradually replacing conventional power plants, which employ ...
Additive manufacturing of WC-CO cemented carbides: microstructural, lenght-scale and layer assemblage orientation effects on hardness, sliding contact response and fracture behaviour
(English) This PhD thesis explores the microstructure–mechanical property relationships of WC-Co cemented carbides (hardmetals) produced using two sinter-based additive manufacturing (AM) techniques: Binder Jetting Technology ...
The effect of social interactions on collective behavior: from flocking to opinion polarization
(English) Like viruses, information, knowledge, and emotions disseminate through a population, and the social interactions between individuals can give rise to a rich tapestry of collective behavior. Usually, we are able ...
Towards generalisable fault detection in smart buildings: hybrid modelling, calibration, and transfer learning strategies
(English) The building sector represents a significant portion of global energy consumption, accounting for over one-third of the total energy used worldwide. Within this sector, Heating, Ventilation, and Air Conditioning ...
Planificación de la adaptación al clima extremo en el contexto del cambio climático. La ciudad esponja como elemento clave para la resiliencia
(English) Climate change represents an unprecedented challenge for Mediterranean coastal regions, especially for Spain. This doctoral thesis, focused on climate change and its impact on regional extreme events, through ...
Advancing decision support: content management, ecommerce, and the challenge of interoperability for integrated modeling
(English) Computational modeling helps us understand how decisions influence outcomes by replicating complex processes with the necessary level of detail. Advances in technology now enable increasingly sophisticated models, ...
Bimetallic catalysts for hydrogen production and purification
(English) In Chapter 3, CeO2-supported mono- and bi-metallic Co-Rh catalysts prepared by incipient wetness impregnation (IWI) and mechanochemical method (also called ball milling, BM) were used to investigate the DRM ...
Towards a safe and efficient OpenMP
(English) The growing complexity of contemporary multi-core and heterogeneous architectures necessitates parallel programming models capable of efficiently leveraging the available computational resources while ensuring ...
DC-side differential mode filtering for voltage source converters
(English) When using voltage source converters (VSC) to control the load flow between the DC voltage circuit and n-phase AC consumers/generators, distortion currents/voltages occur due to the principle involved. These ...
From chaos to cohesion: urban antifragility model and post-crisis sustainable evolution strategies
(English) Urban crises reveal the true essence of our cities: their ability to collapse or, on the contrary, to sublimate themselves in adversity. Floods, economic shocks, pandemics — all tremors that expose every fragility ...
Assessment of higher-mode effects on the seismic behaviour of high-rise buildings and pallet racks using pushover and cloud analyses
(English) This thesis investigates the ability of ordinary Pushover Analysis, Multimodal Pushover Analysis (MPA), and consecutive pushover analysis (CMP) methods, on the one hand, and probabilistic strategies based on ...
Network anomaly detection with graph neural networks
(English) Modern networks support critical applications with increasingly diverse, complex, and dynamic requirements. Ensuring their proper functioning is vital to maintaining the reliability and availability of these ...
Metodología de articulación de actores públicos, privados, academia y ciudadanía como esquema de gobernanza del agua en cuencas hídricas urbanas latinoamericanas
(English) This research work, initiated in 2018, proposes a methodology for the articulation of public, private, academic and citizen actors as a water governance scheme in Latin American watersheds. It combines technical ...
Efficient data movement in large-scale heterogeneous systems
(English) Modern computer systems have become universally heterogeneous. Computer architects have addressed the slowdown of Moore’s Law and the end of Dennard scaling by incorporating a variety of cores, including multi-core ...
Ultrafine particles characterization from different transport sources
(English) Ultrafine particles (UFP), defined as airborne particulates with an aerodynamic diameter smaller than 100 nm, are of particular concern due to their ability to penetrate deep into the respiratory system and even ...
Machine learning methods for smart grid operation with LECs
(English) Recent technological developments in renewable energy have enabled a shift in the energy generation capacity closer to the consumption. This evolution has led to a decentralisation process that is required for ...
Cerámicas ferroeléctricas libres de plomo basadas en BaTiO3 para almacenamiento de energía y otras aplicaciones relacionadas
(English) In this work, barium titanate (BaTiO3) based lead-free ferroelectric ceramics were synthesized and investigated, viewing their applicability in energy-storage devices. The inclusion of the tin (Sn) ion in the ...
Spatial form, urban governance, and people’s experience: a study on the regeneration of historic environments in China from a public value perspective (2000-2020)
(English) This Ph.D. thesis, grounded in public value theory, explores the influence of spatial form, urban governance, and people's experience on the realization of public value in China's historic environment regeneration ...
Sistema adaptativo de aprendizaje utilizando motores de machine learning aplicado a la enseñanza de la ingeniería gráfica
(English) One of the greatest challenges in education has always been the diversity of individual characteristics among students, contrasted with an educational system that seeks to standardize learning to cater to the ...
