Compared with neat terpolymer, significantly increased dielectric permittivity and a low loss were observed for the composites. For instance, at 1 kHz the P(VDF-TrFE-DB)/GNS composites with 4 vol % ...

Abstract: In this work, we present gigahertz low-loss unidirectional acoustic focusing transducers in thin-film lithium niobate. The design follows the anisotropy of fundamental symmetric (S0) waves ...

The best organic mattresses follow a different approach to sourcing than regular beds, prioritizing materials that have been ...

Abstract: A high-extinction ratio and low-loss silica-based 8/spl times/8 thermooptic matrix switch is demonstrated. The 8/spl times/8 matrix switch is realized by using a double Mach-Zehnder ...

Aly Lopez is a writer on the sleep team at CNET. She tests, researches and reviews everything sleep-related, from mattresses and bedding to sleep trends and hacks to sleep technology and supplements.