1. A ratchet spring structure can harvest waves with variable frequencies. (March 2023) Authors: Lv, Xuhan; Yang, Yaodong; Zhang, Dongcai; Wang, Ziliang; Li, Kailin; Rao, Weifeng Journal: Materials today communications Issue: Volume 34(2023) Page Start: Record Type: Journal Article View Content: Available online (eLD content is only available in our Reading Rooms) ↗