"Tuning frictional behavior on the fly has been a long-standing engineering dream," said co-author Katia Bertoldi of Harvard University. "This new insight into how surface geometry governs slip pulses paves the way for tunable frictional metamaterials that can transition from low-friction to high-grip states on demand.” In addition, the dynamics revealed by these results are similar to those of tectonic faults and thus give scientists a new model for the mechanics of earthquakes, according to their new paper published in the journal Nature.
Alarm bells are ringing in the UK research community. Physics departments may close and researchers leave the UK. What is happening and why?
，更多细节参见同城约会
Driver size: 11mm
（一）被处二百元以下罚款，被处罚人对罚款无异议的；
tempted to start the slice out at a larger size, to avoid all of these