Results 51 to 60 of about 13,419 (133)

Boundary control for an unmanned aerial vehicle with a nonhomogeneous rigid–flexible coupling wing

open access: yes工程科学学报
With the rapid development of unmanned aerial vehicle technology and the continuous growth of requirements demanded in engineering applications, flapping-wing unmanned aerial vehicles are playing an increasingly important role in the national economy and
Yun FU   +5 more
doaj   +1 more source

A modular casing while drilling rig for large-diameter horizontal boreholes for underground rescue

open access: yesMeitian dizhi yu kantan
ObjectiveOperations in a narrow space pose a challenge to rescue in the case of the collapse of mine roadways or tunnels. To address this challenge, this study developed a modular rescue casing while drilling (CwD) rig system for horizontal boreholes ...
Dong FAN   +6 more
doaj   +1 more source

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