"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.
Credit: Leah Stodart / Mashable
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貝恩說：「企業正在考慮分散貿易方向，或許更多地進入歐洲市場、印太地區這些快速增長的市場，而這可能會成為過去短短四週內貿易政策波動的持久影響之一。」
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