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Single-walled carbon nanotubes have considerable potential as building blocks in future nanoscale electronics. The tubes exist in two modifications, metallic and semiconducting, which might be used in a range of electronic applications. One of the grand challenges is to separate metallic from semiconducting tubes in substantial quantities. In this respect, this article gives a brief overview over the separation techniques in this new field of nanotube research.
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With the invention of the Scanning Tunnelling Microscope (STM) in 1981 by G. Binnig and H. Rohrer, the gate to the nanoworld was pushed open. The prospect to control matter and units on molecular and atomic level, inspired many scientists to think about new technological approaches ยฑ nanotechnology
Although corrosion performance is currently a severe problem with magnesium alloys, the prospect for magnesium alloys is promising because of their attractive advantages and potential applications. How to solve the corrosion problem has now become an important issue in the application of magnesium a
This review aims to provide a foundation for the safe and effective use of magnesium (Mg) alloys, in support for the rapidly increasing use of Mg in industrial applications, particularly in the automobile industry. Included are recommendations for preventing SCC of Mg alloys exposed to the atmospher