Now showing items 131-150 of 217
Lumbiarres López, Rubén (Date of defense: 2015-07-29)
In the late 90s, Paul C. Kocher introduced the concept of differential attack focused on the power consumption of a cryptographic device. In this type of analysis the plain text sent to the device is known, and all possible ...
Ntinas, Vasileios (Date of defense: 2022-04-04)
(English) Nowadays, due to the increasing amount of information and its demanding processing, conventional CMOS technology and von Neumann computing architecture struggle to keep pace, as they meet their respective limitations ...
Michalski, Tomasz Dobromir (Date of defense: 2021-10-18)
In the last decades, the development trends of high efficiency and compact electric drives on the motor side focused on Permanent Magnet Synchronous Machines (PMSMs) equipped with magnets based on the rare-earth elements. ...
Sánchez Chiva, Josep Maria (Date of defense: 2020-03-05)
In the last decades, sensing capabilities of martphones have greatly improved since the early mobile phones of the 90’s. Moreover, wearables and the automotive industry require increasing electronics and sensing sophistication. ...
Atienza García, María Terersa (Date of defense: 2018-02-13)
The work underlying this Thesis, has contributed to the main study and characterization of diffusive systems. The research work has been focused on the analysis of two kind of systems. On the one hand, the dynamics of ...
Arias Pujol, Antoni (Date of defense: 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 techniques.<br/>Classical Direct ...
Araguz López, Carles (Date of defense: 2019-12-05)
Satellite imagery has become an essential resource for environmental, humanitarian, and industrial endeavours. As a means to satisfy the requirements of new applications and user needs, novel Earth Observation (EO) systems ...
Momeneh, Arash (Date of defense: 2016-09-09)
In recent years, contactless energy transfer systems have been developed and investigated widely. As evident, the transfer energy is performed without physical connection. This technology is classified according to power ...
Moll, Francesc (Date of defense: 1995-03-31)
Debido a los actuales niveles de integración que permite la tecnología de fabricación de circuitos integrados, las interconexiones juegan cada vez un papel más importante en el comportamiento de dichos circuitos introduciendo ...
Cardador Maza, David (Date of defense: 2019-12-19)
Gas detection is of great importance in areas as diverse as industry, health or safety in domestic environments or public spaces, among others, and it is highly specific to each application. The detection method depends ...
Selseleh Jonban, Mansour (Date of defense: 2023-06-09)
(English) Nowadays, distributed energy resources are widely used to supply demand in micro grids especially in green buildings. These resources are usually connected by using power electronic converters, which act as ...
Jin, Chen (Date of defense: 2018-10-31)
This thesis contributes to the fabrication technology of c-Si solar cells on thin substrates based on Interdigitated Back-Contacted (IBC) structures. The potential of this structure to obtain high efficiencies is well-known. ...
López Rodríguez, Gema (Date of defense: 2016-12-05)
The goal of this thesis is the fabrication of high-efficiency interdigitated back-contact (IBC) c-Si solar cell at low temperature and low-cost manufacturing technology. This thesis proposes a new concept and at the same ...
Beristáin Jiménez, José Antonio (Date of defense: 2005-06-23)
En esta tesis se realiza el análisis y la síntesis de inversores bidireccionales con aislamiento en alta frecuencia. Entre las aplicaciones que se contemplan podemos destacar: sistemas de alimentación fotovoltaicos, sistemas ...
Florentín, Matthieu (Date of defense: 2016-05-20)
Silicon (Si) power device’ technologies have reached a high maturity level, but current limitations on mechanic, temperature operation and electric performances require to investigate other semiconductor materials that ...
Prego Borges, Jose Luis (Date of defense: 2010-10-25)
La técnica de las ondas de Lamb acopladas por aire representa un importante avance en el área de los Ensayos No Destructivos (END) de materiales laminares.<br/>Sin embargo la compleja naturaleza de las vibraciones mecánicas ...
Pons Solé, Marc (Date of defense: 2012-10-02)
In nowadays nanometer technology nodes, the semiconductor industry has to deal with the new challenges associated to technology scaling. On one hand, process developers face increasing manufacturing cost and variability, ...
Bermejo Sánchez, Sergio (Date of defense: 2000-03-29)
Premi extraordinari ex-aequo en l'àmbit d'Electrònica i Telecomunicacions. Convocatoria 1999 - 2000
Cárdenas Araujo, Juan José (Date of defense: 2013-07-11)
Nowadays, it would be very difficult to deny the need to prioritize sustainable development through energy efficiency at all consumption levels. In this context, an energy management system (EMS) is a suitable option for ...
Margarit Taulé, Josep Maria (Date of defense: 2015-11-03)
This PhD dissertation describes the research and development of a new low-cost medium wavelength infrared MWIR monolithic imager technology for high-speed uncooled industrial applications. It takes the baton on the latest ...