Spectrum sensing through software defined radio

Dissertação apresentada para obtenção do Grau de Mestre em Engenharia Electrotécnica e de Computadores, pela Universidade Nova de Lisboa, Faculdade de Ciências e Tecnologia

Development and efficiency optimizing of the human body energy converters

Nowadays it is known that the human body is continuous source of many types of energy and the devices used for collecting energy taken from the environment also have the required capabilities for the collection of the energy produced by the Human body (HB), but very limited and with very low efficiency. Low power and high yield converters are particularly needed in these cases of collecting energy from human activity and its movements due to the small amount of energy generated this way. But this situation can be improved. Enhancing or focusing the human movements by using mechanical amplifiers applied to the piezoelectric element. By doing so the input of energy in the element increases. As such increasing its output, therefore producing more energy.

Efficiency optimization of the transportation supply chain activity: the maritime option for Volkswagen Autoeuropa

Field Lab of Entrepreneurial Innovative Ventures

Health systems efficiency after the crisis in the OECD

This work evaluates the efficiency position of the health system of each OECD country. It identifies whether, or not, health systems changed in terms of quality and performance after the financial crisis. The health systems performance was calculated by fixed-effects estimator and by stochastic frontier analysis. The results suggest that many of those countries that the crisis affected the most are more efficient than the OECD average. In addition, some of those countries even managed to reach the top decile in the efficiency ranking. Finally, we analyze the stochastic frontier efficiency scores together with other health indicators to evaluate the health systems’ overall adjustments derived from the crisis.

Energy efficiency in energy policy: Empirical evidence of direct rebound effect in Portuguese household's demand for electricity

This project the direct rebound effect for the electricity demand in Portugal. While we find evidence of such an effect, the estimations also reflect the institutional arrangement that has characterized the electricity market in the country. Also, issues related to energy efficiency promotion are addressed in general putting into context the case study developed.

How to increase reach efficiency and effectiveness of Meo's digital marketing campaigns

Field lab: Business project

How to increase reach efficiency and effectiveness of MEO’s digital marketing campaigns?

Field lab: Business project

O serviço fiscal aduaneiro criminal e contraordenacional da GNR

At a time of global economic instability, to which Portugal is not oblivious, and aware that the main source of Portuguese State revenue relies on the collection of tribute, the National Republican Guard holds within its mission relevant assignments to the protection of the financial interests of the country, in particular, fiscal and customs. These assignments were inherited from the century - old institution Guarda Fiscal - with evidence given in this domain, which was integrated into the National Republican Guard in 1993, to adopt, a 1St model, that held a specialized unit – Brigada Fiscal, with surveillance and patrolling missions of costa and fiscal and customs supervision, throughout the national territory and maritime zone of respect. In 2009, the result of political decisions, reorganization the State's central administration, appears de 2Nd model, because the Brigada Fiscal assignments were divided by two specialized units - UAF with investigation skills, and UCC for patrolling and surveillance of the coast. Analyzed the legal spectrum of special legislation leading the criminal and transgression sector punitive (RGIT), in essence, is in the UAF that resides the role assignments from the scope of the investigation and supervision of goods in the national territory on a par with the tax authority. Tax inspection assignments, fiscal and customs of the National Republican Guard, are unmatched in the National Tribute System, constituting itself as a potentiality of this special body, in similarity of their counterparts - Spain and Italy; however, have some constraints, that urge to clarify and repair. Foreseeing the future, face the announced news of a new restructuring, on behalf of the interests of the country, and in order to raise the quality of performance of the tax inspection, fiscal and customs, the National Republican Guard shall maintain a model based on the experience already accumulated, obviously adapted to the new demands of a changing society. Despite the current model gain in efficiency, loses in effectiveness. However, the efficiency of a model, without the necessary resources, can never bring “the letter to Garcia” against any kind of infringements, criminal or transgressions. Unless better opinion, both tax structures of the National Republican Guard are valid as an instrument for the prevention and combat of these illegal types. Because they are strategic in pursuing the public interest, given the scarce resources of the country and be the National Republican Guard, the force with the means and know-how of this nature. The political power has the final word.