Universitat Politècnica de Catalunya: Envíos recientes
Mostrando ítems 341-360 de 5599
3D printing of zirconia-based ceramic materials
(English) Zirconia stands out among oxide ceramics for its superior mechanical properties. This approach resulted from the significant research that has been conducted since the discovery of the tbughening capabilities of ...
Computational analysis of modern power systems with power electronics
(English) Modern power systems have been and will continue to be increasingly penetrated with power electronics at different voltage levels. Such high penetration of power electronics elements changes the nature of modern ...
Unsupervised and attention approaches for deep learning speaker recognition
(English) The thesis presents various contributions to the field of speaker recognition. In the first part of the thesis, the focus is on unsupervised methods for speaker recognition. This includes a method that uses Deep ...
Study of relaxation phenomena and local structure evolution in metallic glasses by means of Mössbauer and mechanical spectroscopy
(English) New research shows that global demand for alloys with unique properties for various applications increased drastically, and among all them the demand for high entropy and metallic glasses in the industry is ...
Interferometric orbit determination for geosynchronous earth sensing missions
(English) Future Geosynchronous Synthetic Aperture Radar (GEOSAR) missions will provide permanent monitoring of continental areas of the planet with revisit times of less than 24 h. Several GEOSAR missions have been studied ...
Counter a drone via deep reinforcement learning
(English) Unmanned aerial vehicles (UAV) also known as drones have been used for a variety of reasons such as surveillance, reconnaissance, shipping and delivery, etc. and commercial drone market growth is expected to reach ...
Enhanced flux-weakening control algorithm for permanent magnet synchronous machines
(English) EspinarThis thesis presents the overall state of the art of electric vehicles in terms of the technology of the main concepts in an electric powertrain: batteries, traction inverters, electric machines, and control ...
Deep learning techniques for demand-capacity balancing
(English) Nowadays Air Navigation Service Providers (ANSPs) have to handle and accommodate a continuously increasing traffic demand in a scenario that is expected to be more time-efficient and cost-efficient. Meeting the ...
Experimental velocity profile distribution characterization of mountain rivers
(English) The aim of this thesis is to improve our understanding of the behaviour of mountain rivers and to predict their morphological functioning under conditions of low relative submergence. Mountain rivers have received ...
Visual understanding of human behavior: 3D pose, motion, actions and context
(English) Visual understanding of human behavior is a very broad topic that, in the abstract, means understanding what a person or group of people is doing in an image or video. In practice, it can be broken down into a ...
Theta correspondences and arithmetic intersections
(English) The thesis is mainly divided into two parts. In essence, the first one is an extension of the paper [Ter22]. Using the regularized Siege-Weil formula of [GQT14] we obtain an explicit expression for the truncated ...
Mechanochemical preparation of TiO2-based photocatalysts for hydrogen production
(English) Metal clusters and single atoms have been considered as effective cocatalysts for the enhancement of photocatalytic hydrogen production dueto their singular geometric structures, electronic properties and unique ...
Radio access network optimization with proactive resource management for 5G and beyond
(English) The Fifth-Generation (5G) of cellular networks significantly increases the performance and flexibility of the offered services to users and service providers. The strict network requirement of 5G use cases has ...
Control strategy and predictive methods for performance and component lifetime enhancement in vehicle powertrain
(Enlish) In the past years, battery electric vehicles have been gaining market share. These vehicles are progressively seen as a viable option by customers of all kind. However, although manufacturers and research institutions ...
La intervención pública en rehabilitación y regeneración urbana en Barcelona : caracterización de claves operativas y metodológicas
(English) There is a broad consensus on the need to drive urban intervention public policies with the purpose of promoting more inclusive, sustainable, balanced and diverse cities. Urban intervention is not neutral; it has ...
3D-printed polymeric bioresorbable stents for cardiovascular applications
(English) Bioresorbable stents (BRS) have been envisioned as a revolution in the treatment of coronary heart disease. Ideally, stents would initially retain sufficient radial strength after implantation to prevent vessel ...
Contributions to the evaluation and improvement of LoRaWAN
(English) Low Power Wide Area Network (LPWAN) technologies have gained significant momentum as wireless solutions for implementing Internet of Things (IoT) applications and services. The unique set of LPWAN features, such ...
Energy management in collaborative power electronics-based microgrid integrated with renewable energies
(English) This thesis is introduced the research performed on microgrid applications, especially in cooperative operating mode. The research is conducted considering two main challenging aspects of microgrid operation over ...
Low-cost intelligent refurbishment of façades : a study of Barcelona public school building façades
(English) Due to the fact that construction, maintenance, and operation of buildings consume almost 40% of global energy today, architects play a major role in the reduction of world energy consumption. Building’s façades ...
Generation of macroscopic spin singlets in cold atomic ensembles
(English) This thesis describes the generation of macroscopic spin singlets in a cold atomic ensemble by performing quantum non-demolition measurement. Toward this goal we have implemented a realtime shot-nose limited ...
