Universitat Politècnica de Catalunya: Recent submissions
Now showing items 601-620 of 5604
Síntesis de nanoparticulas multifuncionalizadas tipo Core-Shell mediante rutas quimicas
In this thesis, the results of different core-shell structures are presented after having been synthesized by the modified Stöber method, results of UV-Vis, SEM, TEM, XRD, among others, are shown, which determined the ...
Anàlisi de susceptibilitat torrencial en conques d’alta muntanya a partir de la proposta de paràmetres indicadors : construcció d'una base de dades multidisciplinària per al desenvolupament d'una zonificació de perillositat torrencial : cas específic d’Andorra
Over the last 40 years, in Europe in general and in many mountainous regions in particular, there have been major instances of severe flood episodes (more than 100) which have resulted in more than 700 deaths and billions ...
Evaluación de proyectos de infraestructuras de transporte en dos etapas con impactos de no directa monetización
The constant and rapid population growth goes hand in hand with an increased demand for services that governments have the duty to satisfy with the problem of limited financial resources. Transport infrastructure is one ...
Contribucions a l'estudi de rectificadors no controlats m-fàsics en condicions no equilibrades per unitats TRUs o ATRUs multi polsos
This doctoral thesis has been developed to provide a new point of view and a new approach to the analysis and study of uncontrolled bridge rectifiers. The methodology developed has been generalized to extend the study to ...
Biomimetic bone grafts: from the lab to the clinic
Bone grafting is a common medical practice in today’s society, being bone the second most transplanted tissue worldwide after blood. Therefore, it represents a field of major interest for both, biomedical research and the ...
Distributed collaborative knowledge management for optical network
Network automation has been long time envisioned. In fact, the Telecommunications Management Network (TMN), defined by the International Telecommunication Union (ITU), is a hierarchy of management layers (network element, ...
Optimazation of marine sediments characterization via statistical analysis
The task of geotechnical site characterization includes defining the layout of ground units and establishing their relevant engineering properties. This is an activity in which uncertainties of different nature (inherent, ...
Técnicas de control para la mejora de la estabilidad en redes eléctricas DC con convertidores operando a potencia constante
Some electrical devices in direct current (DC) networks, under certain operating characteristics, behave as constant power loads (CPLs). This behavior is defined by presenting negative incremental resistance, compromising ...
Identification of material properties and phase distribution of heterogeneous materials through data-driven computational methods : towards an enhanced constitutive space
Identifying the constitutive relations of materials is an essential task to understand their behavior. Classical methods like testing can be effective in understanding these relationships, but introducing models can lead ...
Large scale geostatistics with locally varying anisotropy
Classical geostatistical methods are based on the hypothesis of stationarity, which allows to apply repetitive sampling in different locations of the spatial domain, in order to obtain enough information to infer cumulative ...
Autonomous and reliable operation of multilayer optical networks
This Ph.D. thesis focuses on the reliable autonomous operation of multilayer optical networks. The first objective focuses on the reliability of the optical network and proposes methods for health analysis related to ...
Desarrollo de un nuevo proceso basado en la inyección 3D de tintas con carga metálica para fabricar prótesis porosas de titanio bioactivas y con propiedades antibacterianas
Titanium (Ti) has been used for decades for bone prostheses due to its mechanical performance and good biocompatibility. However, the stress shielding effect, as a result of the stiffness mismatch between titanium and the ...
Un enfoque holísitico para evaluar la Sostenibilidad de las Indicaciones Geográficas : una aplicación a las DOP de aceite en Cataluña
The importance of Geographical Indications (GI) has grown considerably in recent years as an opportunity for product differentiation for specific segments of the population. The continuous increase in the number of certified ...
Contribution to the hydrogeological knowledge of the high mountain karst aquifer of the Port del Comte (SE, Pyrenees)
This thesis has aimed to improve the hydrogeological knowledge of the Port del Comte Massif (PCM), a karstic aquifer system located in the south-eastern sector of the Pyrenees that plays a strategic role in the provision ...
Novel metal insulator metal capacitors based on electrosprayed colloidal nanoparticles
This work develops a novel capacitor device based on the use of nanotechnology. The device starts from the exiting metal-insulator-metal (MIM) concept, but instead of a continuous insulator layer, dielectric nanoparticles ...
Seawater intrusion, transition zone dynamics and reactive mixing : example of Argentona coastal alluvial aquifer
Freshwater quality and availability in coastal areas are affected by seawater intrusion into coastal aquifers. While coastal water quality and coastal ecosystems can be significantly affected by pollutants discharged into ...
Serum potassium concentration monitoring by ECG time warping analysis on the T wave
End-stage renal disease (ESRD) patients demonstrate an increased incidence of sudden cardiac death (SCD) with declining kidney functioning as a consequence of blood potassium ([K+]) homeostasis impairment, which is restored ...
Applying safe flooring in housing environments related to the independent elderly : evaluating suitability flooring technology to absorb impact in the event of a fall
This research has been developed with the intention of investigating a different generation of pavements. Most of the current pavements have the same basic standard characteristics and this ensures that living conditions ...
On the co-design of scientific applications and long vector architectures
The landscape of High Performance Computing (HPC) system architectures keeps expanding with new technologies and increased complexity. To improve the efficiency of next-generation compute devices, architects are looking ...
Advanced exploitation of Sentinel-1 data for supporting landslide risk analysis
Satellite Synthetic Aperture Radar Interferometry (InSAR) and Persistent Scatterer Interferometry (PSI) are now consolidated tools for ground movement detection and monitoring. Sentinel-1 (S1) is the first satellite providing ...
