A hybrid method for sag source location in power network

The work presented in this paper belongs to the power quality knowledge area and deals with the voltage sags in power transmission and distribution systems. Propagating throughout the power network, voltage sags can cause plenty of problems for domestic and industrial loads that can financially cost a lot. To impose penalties to responsible party and to improve monitoring and mitigation strategies, sags must be located in the power network. With such a worthwhile objective, this paper comes up with a new method for associating a sag waveform with its origin in transmission and distribution networks. It solves this problem through developing hybrid methods which hire multiway principal component analysis (MPCA) as a dimension reduction tool. MPCA reexpresses sag waveforms in a new subspace just in a few scores. We train some well-known classifiers with these scores and exploit them for classification of future sags. The capabilities of the proposed method for dimension reduction and classification are examined using the real data gathered from three substations in Catalonia, Spain. The obtained classification rates certify the goodness and powerfulness of the developed hybrid methods as brand-new tools for sag classification

La difusió de l'arqueologia mitjançant els museus arqueològics: avaluació dels visitants dels museus arqueològics de Catalunya i anàlisi dels conceptes que aquests museus transmeten al públic

The aim of the thesis is to present the visitors knowledge from Archaeology museums in Catalonia, based on the Archaeology museums of Catalonia. In Catalonia there are no studies about the public of these museums. Lack objective data about the public from which they rise to raise our hypotheses regarding the impact of archaeological museums on the population. From a methodological and systematic analysis we can get closer to the knowledge of the general characteristics of the public of these museums. We focus on the visitors through interviews and surveys with observation and indirect functions of museums related to public exposure of their content, and assessing the impact of exposure and whether it has achieved their goals. From there you hire the evolution that has taken Archaeology in our country and if museums are analyzing whether a meeting between researchers and the public. The evaluation presented on visitors and the exhibition halls aims to provide information about museums and approach to the dissemination of knowledge in reference to the archeology in museums in Catalonia.