999 resultados para Backup system


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Magdeburg, Univ., Fak. für Naturwiss., Diss., 2014

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Diese Arbeit beschreibt die Nachrüstlösung einer Brandmeldeanlage der Firma Notifier zur Anbindung und Visualisierung an das KNX System. Die Anbindung soll ermöglichen, dass Informationen der Brandmeldeanlage in Form von Feuer- und Statusmeldungen an dem KNX-Bus übertragen und visualisiert werden können. Die positiven Effekte, die daraus resultieren, sind zum einen die mögliche Verknüpfung mit anderen Teilnehmern im KNX-System und zum anderen die daraus resultierende Möglichkeit, alle vorhandenen Systeme in einem Gebäude visualisiert darstellen zu können. Nach der Recherche, zu dem von dem Systemen verwendeten Schnittstellen und Kommunikationsmöglichkeiten, wurde die Auswahl der benötigten Bauteile getroffen, um die Anbindung der beiden Systeme zu ermöglichen. Die daraus resultierende Verwendung eines Mikrocontrollers erforderte die Entwicklung und Programmierung dessen Software. Anschließend war es möglich durch hardware- und softwaretechnischen Lösungen eine Anbindung der beiden Systeme zu ermöglichen und das daraus gesteckte Ziel, eine Visualisierung durch Verwendung spezieller Software des KNX, zu erreichen.

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This review describes current problems, trends and prospects of the quasi-automatic light control system. The lighting systems of million cities.

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Magdeburg, Univ., Med. Fak., Diss., 2015

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Magdeburg, Univ., Fak. für Elektrotechnik und Informationstechnik, Diss., 2015

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Otto-von-Guericke-Universität Magdeburg, Fakultät für Naturwissenschaften, Univ., Dissertation, 2015

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The impact of a power plant cooling system in the Bahía Blanca estuary (Argentina) on the survival of target zooplanktonic organisms (copepods and crustacean larvae) and on overall mesozooplankton abundance was evaluated over time. Mortality rates were calculated for juveniles and adults of four key species in the estuary: Acartia tonsa Dana, 1849 and Eurytemora americana Williams, 1906 (native and invading copepods), and larvae of the crab Chasmagnathus granulata Dana, 1851 and the invading cirriped Balanus glandula Darwin, 1854. Mean total mortality values were up to four times higher at the water discharge site than at intake, though for all four species, significant differences were only registered in post-capture mortality. The findings show no evidence of greater larval sensitivity. As expected, the sharpest decrease in overall mesozooplankton abundance was found in areas close to heated water discharge.

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The ostracode assemblages from Cananéia-Iguape estuarine/lagoon system (southernmost State of São Paulo) are here discussed in detail for the first time. Thirty-four sites, approximately 1 km equidistant, were sampled along the system, including the Cananéia Sea, Pequeno Sea, Cubatão Sea, Ribeira de Iguape River and Itapitangui River. The ostracodes throughout this area have poor assemblages, with a total of 662 specimens of dead and living organisms. The majority of the ostracode fauna is composed of euryhaline species, as follows: Cyprideis multidentata Hartmann, 1955 (174 specimens), Minicythere heinii Ornellas, 1974 (54 specimens), Tanella gracilis Kingma, 1948 (96 specimens) and Whatleyella sanguinettiae Coimbra, Carreño & Ferron, 1994 (226 specimens). Although there are few studies on the Brazilian mixohaline ostracode faunas, including the euryhaline marginal marine taxa, the published data show that the group is best known in the south and southeast regions. Based on this review and with the new data presented in this paper, the geographical distribution of eight mixohaline key species in southern and southeastern Brazil is also discussed.