Results 111 to 120 of about 9,346,290 (225)

Mode Transition and Fault Tolerant Control under Rotor-tilt Axle Stuck Fault of Quad-TRUAV

open access: yes, 2018
Tilt rotor unmanned aerial vehicle (TRUAV) is a transformable aircraft with abilities of hovering and high-speed cruise. Its transition control is still a difficult point due to varying structure and dynamic behaviour. The main contribution of this paper
Liu Z(刘重)   +4 more
core   +1 more source

Inverted metal-free active template synthesis of rotaxanes via axle‑mediated macrocyclization. [PDF]

open access: yesNat Chem
Zhong J   +7 more
europepmc   +1 more source

Axle Lubricator.

open access: yes, 1889
Patent for a new and improved axle lubricator. This design "consist[s] of a box provided with bearings in which the axle works, and with a cellar below the said bearings for the reception of the waste for containing the lubricant; [and] . . .
Good, William
core  

Axle Box.

open access: yes, 1889
Patent for a new and improved axle-box. This design "relates to that class of axle-boxes in which anti-friction devices are employed for enabling the wheel to revolve on the axle with as little friction and wear as possible.
Hobron, Charles B.
core  

Mechanically Interlocked Indigo Photoswitches. [PDF]

open access: yesAngew Chem Int Ed Engl
Wilmshurst AM   +9 more
europepmc   +1 more source

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