Mostrando ítems 31-40 de 130
Ballesteros Larrota, Dora María (Fecha de defensa: 2013-07-15)
This work presents two speech hiding methods based on a bio-inspired concept known as the ability of adaptation of speech signals. A cryptographic model uses the adaptation to transform a secret message ...
Iannazzo Soteras, Mario E. (Mario Enrique) (Fecha de defensa: 2017-09-22)
This doctoral thesis approaches the design requirements for future high / ultra-high data rate (from 100 Mbps to 100 Gbps) nanotransceivers (nanoTRx) applied to wireless nanonetworks which imply ...
Arias Pujol, Antoni (Fecha de defensa: 2001-03-01)
This thesis is mainly devoted to the investigation of speed control methods for three phase cage induction motors with particular emphasis being given to Direct Torque Control (DTC) improved ...
López Mariño, Simón (Fecha de defensa: 2016-04-22)
The present thesis focuses on the promising semiconductor material kesterite, Cu2ZnSn(S,Se)4, known as CZTS(e), which is used in the second generation of solar cells, generally known as thin film ...
Rey López, Juan Manuel (Fecha de defensa: 2016-07-16)
The present doctoral thesis is focused on the analysis and design of control strategies for the secondary control layer of islanded AC microgrids without the use of communications. The work is submitted ...
Cid-Pastor, Ángel (Fecha de defensa: 2005-07-18)
En aquesta tesi doctoral es presenta un mètode sistemàtic per a la síntesi de giradors de potència. A partir d'aquest mètode s'han generat i classificat diverses estructures giradores. Cadascun d'aquests ...
Ortega Garcia, Carlos (Fecha de defensa: 2008-10-23)
La demanda d’aplicacions industrials avançades, fa que el control de màquines elèctriques de corrent altern (AC) sigui una disciplina contínuament creixent per satisfer l’alt nivell d’exigència. ...
Neagu, Mădălin (Fecha de defensa: 2017-09-08)
The main objective of this thesis is to bring new contributions to the self-healing and secure systems domain. In particular, to develop a self-healing technique for memory systems and to increase ...
Sanjuán Muñoz, Josep (Fecha de defensa: 2009-09-29)
This thesis focuses on the issues related to the thermal diagnostics aboard the space mission LISA Pathfinder (LPF). LPF is a technological mission devoted to put to test critical subsystems for the ...
Dosev, Dosi Konstantinov (Fecha de defensa: 2003-03-31)
Hot-wire chemical vapour deposition (HWCVD) is a promising technique that permits polycrystalline silicon films with grain size of nanometers to be obtained at high deposition rates and low substrate ...