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"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.
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So far 58 skeletons, dating to the 6th or 7th Century, have been uncovered at the site. What's unusual is that nearly all belonged to women.
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（二）在公共场所停放尸体或者因停放尸体影响他人正常生活、工作秩序，不听劝阻的。
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