Titlebook: Geburt ohne Angst; Die komplette Geburt Norbert Pfützenreuter Book 1991 Springer-Verlag Berlin Heidelberg 1991 Er?ffnungsphase.Geburt.Gebur

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f dimmable light-emitting diode lights on the open road section of highways appears to be a promising solution, due to the reduced energy consumption (compared to high pressure sodium lamps) and the ability to adjust their brightness at various levels, based on the road’s traffic load. However, sett

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the materials-science scene over the past 20 years. These ‘high-technology‘ ceramics have varied applications in areas utilizing their exceptional mechanical, thermal, optical, magnetic or electronic properties. A notable development of the 1970s was that of ‘Si-based‘ ceramics (Si3N4‘ SiC and ‘Sial