·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 ...

The key parameters of the FSS technique and their impact on EMI performance. How to evaluate FSS performance using simulation, ICs, and a signal generator. Frequency spread spectrum (FSS) is a ...

A scientist in safety glasses, a blue lab coat, and gloves holds a measuring device and stands in front of a large cube fitted with polyvinyl chloride pipes and flexible tubes. At a facility in ...

This story originally appeared on Vox and is part of the Climate Desk collaboration. The tricky thing about generating electricity is that for the most part, you pretty much have to use it or lose it.