"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.
此次正式访问充分表明，中德双方致力于维护稳定和建设性的双边关系，愿在符合双方共同利益的领域深化合作，并通过坦诚开放、相互尊重的对话妥处分歧。
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Dawud Burke, D4vd's father, fought against the summons in a Texas court, and in doing so included portions of material from the California case that had not been previously available to the public.，推荐阅读heLLoword翻译官方下载获取更多信息
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