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Solar cells are semiconductor devices that convert light photons into electricity in photovoltaic energy conversion and can help to overcome the global energy crisis. Solar cells have many applications including remote area power systems, earth-orbiting satellites, wristwatches, water pumping, photodetectors and remote radiotelephones. Solar cell technology is economically feasible for commercial-scale power generation. While commercial solar cells exhibit good performance and stability, still researchers are looking at many ways to improve the performance and cost of solar cells via modulating the fundamental properties of semiconductors. Solar cell technology is the key to a clean energy f...
Benthic cyanobacteria that inhabit drinking water facilities can create toxic conditions and form harmful algae blooms (HABs). To maintain a healthy water supply at the Barberton Water Treatment Plant, three algaecides were tested to determine the optimal source and dose required to reduce benthic cyanobacteria populations without effecting chlorophyll-a. The full dose, half dose and a quarter dose of EarthTec, Cutrine Ultra and PAK 27 were tested in triplicate over 14 days to determine the optimal dose. The full dose of PAK 27 was determined to be the optimal dose and source showing a significantly low cyanobacteria rebound (p = 0.0050) coupled with a high rebound of chlorophyll-a (p = 0.00...
Drawing on research from diverse thinkers in urban planning and the built environment, this Handbook articulates the cutting edge of contemporary understandings about power and its impact on planning. It identifies the current state of knowledge about planning and power, as well as emerging trajectories within this field of research.
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Das perfekte Geschenk für alle Mütter, Schwestern und Freundinnen. Ein Adventskalender über berühmte Frauen, eine Reise durch die Jahrhunderte mit unterschiedlichen Weihnachtsfesten und Traditionen. »Wien glitzerte in vorweihnachtlicher Pracht. In den Einkaufsstraßen standen geschmückte Christbäume, der Duft nach Zimt und gebrannten Nüssen strömte aus den Konditoreien, und die zarte Schneehaube tat ihren Rest dazu, Wien in die Kulisse eines Weihnachtsmärchens zu verzaubern.« Nichts ist schöner als die Vorfreude auf Weihnachten! Gemütlich mit einer Tasse Tee auf dem Sofa kann mit diesen 24 Kurzgeschichten über beeindruckende Frauen die Zeit bis Heiligabend wunderbar genossen we...
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