Triay Marquès, Joan (Date of defense: 2011-10-07)
La ràpida evolució d’Internet i l’àmplia gamma de noves aplicacions (per exemple, multimèdia, videoconferència, jocs en línia, etc.) ha fomentat canvis revolucionaris en la manera com ens comuniquem. A ...
Boronat Moreiro, Alfredo (Date of defense: 2013-10-11)
This work has been developed in a line of research related whit the Intermediate Band (IB) concept, which explores overcoming the photovoltaic efficiency limits established for solar cells. The IB concept ...
Andrade Jardín, Marilet de (Date of defense: 2010-11-23)
This thesis is a result of contributions to optimize or improve resource allocation in Passive Optical Networks (PON). The contributions are related with resource allocation during PON operation and ...
Castro, Alberto (Date of defense: 2014-10-10)
The ever increasing IP traffic volume has finally brought to light the high inefficiency of current wavelength-routed over rigid-grid optical networks in matching the client layer requirements. Such an ...
Obrador Espinosa, Pere (Date of defense: 2011-07-08)
Since the earliest of times, humans have been interested in recording their life experiences, for future reference and for storytelling purposes. This task of recording experiences --i.e., both image ...
Zhang, Weiyi (Date of defense: 2017-06-01)
The installation of power generation systems based on renewable energy sources has been increasing exponentially over the last decades. However, in spite of the well-known merits of such energy sources, ...
Vázquez Guzmán, Gerardo (Date of defense: 2013-02-04)
Electrical Energy generation is an issue that is continuously cause of concern around the world. Many efforts have been done in this sense to cover the requirements of the constantly growing in the ...
Belandria, Luciano Emilio (Date of defense: 2015-09-18)
The phase-locked loop (PLL) is an element of a grid-connected converter system, which provides phase angle and frequency measurements of the grid voltage. The PLL takes care of control the synchronization ...
Gratacòs Prats, Jaume (Date of defense: 2016-01-18)
The optimal planning of the annual development tasks of a medium voltage power distribution network, to tackle the evolution of the demand with maximum levels of quality and continuity of service and ...
Junyent Ferré, Adrià (Date of defense: 2011-07-15)
The present PhD thesis analyzes the modelling and control of the two main topologies of large scale variable speed wind turbines, the doubly fed induction generator and the permanent magnet synchronous ...