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| On the edge of graphene: Edges have different conductivity Posted: 15 Aug 2014 07:23 AM PDT The conductivity at the edges of graphene devices is different to that of the central material, researchers have discovered. Local scanning electrical techniques were used to examine the local nanoscale electronic properties of epitaxial graphene, in particular the differences between the edges and central parts of graphene Hall bar devices. |
| Wireless sensors and flying robots: A way to monitor deteriorating bridges Posted: 15 Aug 2014 07:20 AM PDT As a report from the Obama administration warns that one in four bridges in the United States needs significant repair or cannot handle automobile traffic, engineers are employing wireless sensors and flying robots that could have the potential to help authorities monitor the condition of bridges in real time. |
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