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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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Intriguing finds could solve mystery of women in medieval cemetery
Жители Санкт-Петербурга устроили «крысогон»17:52
第四十六条 经省级以上财政、税务主管部门批准由总机构汇总申报纳税的，批准部门可以规定由分支机构预缴税款。