Titlebook: Nanotechnologies, Hazards and Resource Efficiency; A Three-Tiered Appro Michael Steinfeldt,Arnim Gleich,Rüdiger Haum Book 2007 Springer-Ver

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bly unfold, M. C. Roco (2002:5) identified the following stages or generations for industrial prototypes and their commercial expl- tation: Past and present: The “coincidental” use of nanotechnology. Carbon black, for example, has been in use for centuries; more specific, isolated applications (catalysts, com978-3-642-09312-8978-3-540-73815-2

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ropical areas. The stratospheric response showed the strongest DJF temperature anomalies related to solar variability occurring over the Arctic, but its sign is negative in 1979–2002 and positive in 1958–1978. The temperature features may be partially explained by the impacts of the solar cycle, El

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