Results 191 to 200 of about 33,641 (337)
Efficiency testing of a helicopter transmission planetary reduction stage [PDF]
A parametric study of the efficiency of a 310-kW (420-hp) helicopter transmission planetary test section (four planets) was performed. The purpose was to determine the planetary contribution to the overall transmission power loss.
Handschuh, Robert F., Rohn, Douglas A.
core +1 more source
Enhanced diagnosis of planetary gear train faults based on bispectrum and attention mechanism deep convolutional generative adversarial networks. [PDF]
Sci RepYang D, Zhang Y, Li R, Long H, Huang C.
europepmc +1 more source
Brown Trout Abundance in Boreal Streams With Large Wood
Ecology of Freshwater Fish, Volume 35, Issue 2, April 2026.ABSTRACT Large wood has been found to be a crucial component in riverine ecosystems. However, due to the heavy channelization of rivers and intensive forestry practices over the past few decades, the amount of large wood in these ecosystems has decreased worldwide. River restoration aims to mitigate the effects of channelization and restore the channel
Koski Alisa +3 more
wiley +1 more source
OpenSEA: a 3D printed planetary gear series elastic actuator for a compliant elbow joint exoskeleton. [PDF]
Front Robot AIJenks B, Levan H, Stefanovic F.
europepmc +1 more source
NASA transmission research and its probable effects on helicopter transmission design [PDF]
Transmissions studied for application to helicopters in addition to the more conventional geared transmissions include hybrid (traction/gear), bearingless planetary, and split torque transmissions. Research is being performed to establish the validity of
Coy, J. J. +2 more
core +1 more source
Design and calculation of planetary transmission with bevel gears
, 2019 Ivan Sabo +3 more
openalex +2 more sources
Journal of Applied Polymer Science, Volume 143, Issue 9, March 5, 2026.Thermal behavior, specimen fabrication, and mechanical benchmarking of PHBH produced by additive manufacturing and injection molding. ABSTRACT Poly(3‐hydroxybutyrate‐co‐3‐hydroxyhexanoate) (PHBH) is a biodegradable polyester with strong potential for marine and packaging applications common for thermoplastic polymers, yet its performance after being ...
Lorenzo De Noni +4 more
wiley +1 more source
Vibration analysis of a double-row planetary gear set considering the sun gear axial position. [PDF]
Sci ProgCheng Y, Liu Y, Zhang Q.
europepmc +1 more source