·A system-level strategy is presented to achieve high charging efficiency in triboelectric nanogenerator (TENG)-supercapacitor (SC) hybrid devices, with a focus on frequency response design. ·This ...
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Tiny nanostring experiment reveals wild hidden energy cascades
Scientists at TU Delft have designed a nanostring resonator that, when driven at its lowest vibration frequency, quietly funnels energy through a chain of higher modes all the way up to the fifth, ...
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