Universitat Politècnica de Catalunya: Envíos recientes
Mostrando ítems 401-420 de 5601
First order logic of random sparse structures
(English) This work is dedicated to the study several models of random structures from the perspective of first-order logic. We prove that the asymptotic probabilities of first-order statements converge in a general model ...
Fluorescence quantum yield and the open circuit voltage in perovskite solar cells
(English) To mitigate the energy and climate crisis we are already facing and address the increasing energy consumption, it is essential to foster energy transition strategies. The energy transition success largely depends ...
Contributions to prognostics and health-aware control of dynamic systems
(English) Maintenance is indispensable in every industry that uses machines and is inevitable regardless of the attention paid to it. The cumulative effect of its neglect or a non-optimized approach is a long or short-term ...
Techniques for efficient and secure optical networks
(English) Optical communication systems are widely adopted and responsible for transporting data traffic from access to metro to core networks supporting society’s information and communication functions. As the traffic ...
Relevant statistical applications to real-world data science
The work presented in this dissertation is a compendium of articles based on three main applications of advanced statistical methodologies on real-world complex datasets. The first application concerns wildfire effects ...
Towards efficient quantum repeater nodes based on solid-state quantum memories
(English) Quantum repeaters are the foundation of future long-distance quantum networks. In most architectures, their functional core is constituted by quantum memories, which are devices that can store and re-emit photonic ...
Modeling and control of a vanadium redox flow battery
(English) Due to the current climate crisis, significant efforts are being made in the field of renewable energies, being one of the main challenges the storage of energy in an efficient, environmentally friendly and ...
Automatic hands-free visualization of a six degrees of freedom agent within a complex anatomical space
(English) Over the years, a continuous development of intraluminal procedures resulted in strong benefits for the patients. Reduced blood loss, lower risk of infections, diminished scaring impact and quicker recovery time ...
Sea surface determination using GNSS reflected signals
(English) The Global Navigation Satellite Systems (GNSS) are large, stable and calibratecl sets of spaceborne L-band microwave transmitters with very well characterized properties. They provide global and permanent coverage ...
Multiple light scattering in atomic media : from metasurfaces to the ultimate refractive index
(English) Our ability to confine, guide, and bend light has led to astonishing technological achievements, playing a fundamental role in diverse fields like microscopy, photochemistry, telecommunications or material design. ...
Fire risk analysis framework at the wildland-urban interface
(English) Wildfires that reach the border between the wildland and urban areas, defined as the Wildland-Urban Interface (WUI), have rapidly expanded in frequency and severity over the past few decades, and the number of ...
Galileo broadcast ephemeris and clock errors, and observed fault probabilities for ARAIM
(English) The characterization of Clock and Ephemeris error of the Global Navigation Satellite Systems is a key element to validate the assumptions for the integrity analysis of GNSS Safety of Life (SoL) applications. ...
Study of the characterization of the mechanical properties of materials with elastomeric behavior for biomedical applications
(English) The mechanical characterization of new materials used in the Material Extrusion technique (MEX) in 3D printing is essential. The use of this technique is growing and with it the possible applications of printed ...
Design and construction of a snapshot full-Stokes polarimetric camera : seeing through fog
(English) Polarization is one of the properties of light and it is often put aside. Human beings receive light beams and process only the intensity and wavelength information. Our optical system lacks the capability of ...
The adoption of global leadership competences and Total Quality Management by the staff of Egyptian and Jordanian exporting companies: case studies
The main purpose of this research is to conduct exploratory qualitative research to analyze the level of global leadership competencies and Total Quality Management (TQM) in Egyptian and Jordanian exporting companies and ...
Graph convolutional neural networks for 3D data analysis
(English) Deep Learning allows the extraction of complex features directly from raw input data, eliminating the need for hand-crafted features from the classical Machine Learning pipeline. This new paradigm brought a boost ...
A theoretical and computational study of the active self-organization of nematic patterns in thin cytoskeletal layers and their effect on curvature
(English)The structure and dynamics of important biological systems, ranging from cytoskeletal gels to tissues, are controlled by an interplay between activity, dissipation, nematic order, density, and geometry. In particular, ...
Population dynamics, interactions and evolution of marine microbes using genomic approaches
(English) There is a myriad of microorganisms on Earth contributing to global biogeochemical cycles. In the surface ocean, the smallest microbes (picoplankton) are responsible for an important fraction of the total atmospheric ...
Estudi i desenvolupament de sensors òptics ultra-ràpids per a metrologia tridimensional de superfícies
(English) Three-dimensional measurement of roughness and shape of a surface provides information about an object properties through surface parameters. These parameters are defined by international standards and can describe ...
Lattice-based zero-knowledge proofs of knowledge
(English) The main goal of this dissertation is to develop new lattice-based cryptographic schemes. Most of the cryptographic protocols that each and every one of us use on a daily basis are only secure under the assumption ...
