Results 131 to 140 of about 1,075 (258)

A Model of the Cosmos in the ancient Greek Antikythera Mechanism. [PDF]

open access: yesSci Rep, 2021
Freeth T   +5 more
europepmc   +1 more source

Failure Analysis of Gear on Rail Transit. [PDF]

open access: yesMaterials (Basel)
Pan AX   +6 more
europepmc   +1 more source

Filtering based on FRFT for extracting fault orders of sun gears in a variable speed planetary gear system

open access: yesJixie chuandong
ObjectiveIn order to better extract the weak fault characteristics of variable-speed planetary gear trains in the noise environment, a method was proposed to determine the optimal order of fractional Fourier transform (FRFT) based on the speed signal and
FAN Hongwei   +3 more
doaj  

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