"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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巴罗介绍法方对当前中东局势的看法，强调法中同为联合国安理会常任理事国，对维护国际和平与安全负有特殊责任。美国、以色列对伊军事行动未征求联合国安理会意见，也未获安理会授权。各方当前要共同推动局势降级，通过谈判解决伊朗核等问题。中方同伊朗和海湾地区国家都保持良好关系，期待同中方一道，为推动地区局势缓和降温发挥积极作用。