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One Wet Winter Can Shake Up San Francisco Bay’s Invasive Species（图）
One Wet Winter San Francisco Bay Invasive Species
2017/12/19
For many Californians, last year’s wet winter triggered a case of whiplash. After five years of drought, rain from October 2016 to February 2017 broke more than a century of records. In San Francisco ...
Periodically fighting shake, rattle and roll
Dynamical Systems Periodically rattle and roll
2011/8/31
Abstract: How easy is it to suppress shake, rattle and roll in a long bridge or a skyscraper? Most practical structures are designed so that long wave resonance vibrations can be avoided. However, the...