"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.
Татьяна Навка высказалась о подарках от ПесковаФигуристка Татьяна Навка заявила, что Дмитрий Песков часто дарит ей цветы
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Then came the bigger leap. In the early 2000s, Gran headed south, determined to prove the model in the far more competitive U.S. market. In 2003, SpeedPro Imaging took root in Texas with three pioneer studios in Austin, San Antonio, and Plano. They were small, lean operations built around large‑format printing and fast turnaround.
出道时，她110磅（约50公斤），二十几年下来，她重了几十磅，她说全败在喝酒上。