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Quest for nonlinear waves
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7 |
- There are a number of key contributions by our team to the fundamental nonlinear wave dynamics, such as first realization of rarefaction waves in solids (top panel in Figure below), Anderson localization under combined effects of disorder and nonlinearity (bottom panel), discovery of dark breathers in nonlinear lattices for the first time via experimental approaches, turbulence-like energy cascading in phononic structures, resonance analogous to Ramsauer-Townsend (RT) mechanism from quantum physics, mechanical wave mixing effects, and super-symmetry inspired isospectral wave transmission, to list a few. Our recent effort focuses on unveiling mechanical rogue waves in collaboration with applied mathematicians.
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Data driven modeling of chaotic events
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- Chaos has been observed in various fields ranging from physics, mathematics, biology, to engineering. However, an accurate prediction of chaotic dynamics in physical systems is an extremely difficult task in practice. Here we demonstrate data-driven prediction of chaotic structural dynamics by employing a machine learning technique. To verify the effectiveness of our approach, we introduce an engineered system that produces a variety of training/testing data in a controlled manner.
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A biological 3D printer: the synthetic coral
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- Coral reefs are disappearing at a rapid rate around the world. We 3D print scaffolds to guide coral growth and look into new techniques to measure how well the corals grow.
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Comparison between 3D reconstructions and QRNN predictions of TCO motion
Time-lapse video of coral nubbin under normal light and 25℃
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1 |
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