Amazon has launched its Black Friday sale, offering steep discounts on tools, home improvement gear, and holiday essentials.

Portable generators, dual-fuel units, and battery power stations from brands like EF ECOFLOW, WEN, Generac, DuroMax, Westinghouse, and Honda are all marked down ahead of winter storms.

Abstract: Direct-driven generation is considered one of the most reliable selections in wave energy conversion systems. Therefore, a direct-driven linear-rotary wave generator (LRWG), which can ...