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Brushes with nanoscale bristles, such as nanotube arrays held together by van der Waals forces, have applications as compliant electrical switches, probes and micro-scale cleaning tools. Repeated use exposes the brushes to contact and impact at high strains resulting in the bristles undergoing exfoliation, deformation and damage. We show that the damages incurred can be nearly recovered by capillary...
We demonstrated a post-growth processing method to increase the site density of carbon nanotube (CNT) bundles, a critical step towards CNT interconnect for use in future ICs. CVD-grown CNT bundles are immersed in an organic solvent, then withdrawn from the liquid bath by solvent evaporation, and consequently compacted. The CNT site density is increased 5~25 times. Influences of bundle structure parameters...
Desertification, land degradation in arid, semi-arid, and dry sub-humid regions, is a global environmental problem. Accurate assessment of the status, change, and trend of desertification will be instrumental in developing global actions to prevent and eradicate the problem. As one of the most seriously affected countries, China has made great efforts to combat desertification. Although improvements...
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