Titlebook: Untersuchungen über die Radioaktiven Substanzen; übersetzt und Litter S. Curie Book 1904 Springer Fachmedien Wiesbaden 1904 Mineral.Radioak

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W. Kaufmanntructures with up to 50% of Al in the well material were grown by using low-pressure MOCVD and characterized by using X-ray, AFM, SEM and photoluminescence techniques. We observed stimulated emission at wavelength as short as 258 nm in Al.Ga.N/AlN MQWs grown on bulk AlN single crystals. These result

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暗語

,Radioaktivit?t des Uraniums und Thoriums. Radioaktive Mineralien,Die von Herrn Becquerel entdeckten Uranstrahlen wirken auf gegen Licht geschützte photographische Platten; sie k?nnen alle festen, flüssigen und gasf?rmigen K?rper durchdringen, vorausgesetzt, da? ihre Dicke genügend gering ist; die durchstrahlten Gase machen sie zu schwachen Leitern der Elektrizit?t .).

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https://doi.org/10.1007/978-3-663-13893-8Mineral; Radioaktivit?t; Strahlung; Uran

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W. Kaufmannn, insects, fish and birds. The base of the food webs supporting these animal populations is still poorly understood, but at many sites examined to date the biomass and energy flow in the lower food web is mostly associated with microscopic species of diverse nutritional modes: photosynthetic bacter

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W. Kaufmannng approach has considerably improved the quality of such layers grown on sapphire substrates. Recent improvements in our epitaxial Pulsed Atomic Layer Epitaxy (PALE) technology have allowed us to grow very uniform high quality AlGaN heterostructures over four inch sapphire wafers. However, for deep