Vanadium Redox Flow Battery Storage System Linked to the Electric Grid

This paper focuses on technology state of the art for the charge/discharge of electric energy storage supported by vanadium redox flow battery linked to the electric grid. Properties of vanadium, the main configuration and the reaction of charge/discharge of a vanadium redox flow battery are addressed. The vanadium redox flow battery has the highest cell voltage among the other redox flow battery, implying higher power and energy density which favours application at power plants. This electric energy storage is viewed as a promising contribution to be integrated in power system due to a reasonably bulky size and to successful applications currently allowing storage of energy at power plants or at electrical grids. For instances, allowing storage of energy as an economic improvement providing spin reserve to avoid penalty for imbalances between the energy delivered and energy contracted at closing of electricity market or as an economic improvement to diminish the cost of electricity usage of a consumer. The vanadium redox flow battery has the advantages of scalability customized to meet requirements for power and energy capacity and of excellent combination of energy efficiency, capital cost and life cycle costs compared with other technology.

Medicina de espécies zoológicas

O presente relatório refere-se ao estágio curricular realizado no Badoca Safari Park, no âmbito do mestrado integrado em medicina veterinária da Universidade de Évora, na área de medicina de espécies zoológicas Este encontra-se dividido em duas partes, uma relativa às atividades realizadas e casuística, acompanhada de aprofundamento teórico, e outra relacionada com a pesquisa de hemoparasitas em ungulados, através de esfregaços sanguíneos, efetuada no decorrer do estágio. As hemoparasitoses são infeções com potencial zoonótico, transmitidas por vetores, associadas a importantes perdas económicas. O controlo destas afeções tem como obstáculos fatores económicos e sociais, a heterogenicidade de hospedeiros que estes hemoparasitas e respetivos vetores apresentam, assim como o facto das espécies de animais selvagens poderem atuar como hospedeiros reservatórios. A entrada de animais exóticos e saída de autóctones, em zonas endémicas, provoca desequilíbrios na relação entre o parasita e hospedeiro que poderão despoletar episódios de doença; Abstract: Zoo and Wildlife medicine This report refers to the internship held at Badoca Safari Park, as part of the integrated master’s degree in veterinary medicine, at the University of Évora, in the clinic area of wild species and wild animals. This thesis is devided into two parts, one on the activities and cases, accompanied by theoretical studies, and the other related to hemoparasites research on ungulates through blood smears, performed during the intership. The hemoparasitoses are infections with zoonotic potential, transmited by vectors associated with significant economic losses. The control of these affections has as main obstacles the economic and social factors, the heterogeneity of hosts these hemoparasites and respective vectors present, as well as the fact that the wildlife species can act as reservoir hosts. The entry of exotic animals and the disappearance of natives, in endemic areas, causes imbalances in the relationship between parasite and host that can trigger episodes of illness.