Browsing Universitat de Girona by Subject "537"

Now showing items 1-4 of 4

Automatic diagnosis of voltage disturbances in power distribution networks

Barrera Núñez, Víctor Augusto (Date of defense: 2012-04-10)

This thesis proposes a framework for identifying the root-cause of a voltage disturbance, as well as, its source location (upstream/downstream) from the monitoring place. The framework works with three-phase voltage and ...

Localización de faltas en sistemas de distribución de energía eléctrica usando métodos basados en el modelo y métodos basados en el conocimiento

Mora Flórez, Juan José (Date of defense: 2006-12-15)

La calidad de energía eléctrica incluye la calidad del suministro y la calidad de la atención al cliente. La calidad del suministro a su vez se considera que la conforman dos partes, la forma de onda y la continuidad. ...

Producció i anàlisi d’aliatges Heusler no estequiomètrics: Ni-Mn-Sn-(Co,Fe)

Deltell, Àlex (Date of defense: 2020-09-07)

Magnetic memory alloys are a subset of shape memory materials that respond to the application of external magnetic fields. These materials are currently gaining more and more interest, given their properties, for use in ...

Synthèse, caractérisation et étude magnétique des alliages à mémoire de forme de type Heusler Ni-Mn-Sn-X (X= Pd, Cu)

Wederni, Asma (Date of defense: 2021-11-26)

Shape memory alloys witch exhibit magnetically induced phase transformations at room temperatures are the most interesting for magnetic cooling applications. Heusler type alloys (both stoichiometric and non-stoichiometric) ...