Results 81 to 90 of about 2,265 (257)
A multi-objective optimization design approach of large mining planetary gear reducer. [PDF]
Sci Rep, 2023 Xin W, Zhang Y, Fu Y, Yang W, Zheng H.
europepmc +1 more source
AGRICULTURE IN A SOCIALIST CITY: Towards an Alter‐Urban Political Ecology
International Journal of Urban and Regional Research, EarlyView.Abstract Urban political ecology has developed as a critique of capitalist urbanization. This article develops the concept of alter‐urban political ecology to define urban environments emerging not from capitalist urbanization but from efforts to transform it. Drawing on archival research and ethnographic fieldwork in five urban farms in socialist Cuba,
Gustav Cederlöf
wiley +1 more source
Jixie chuandong, 2023 In order to solve the problems of eccentric load of planetary gear train and large impact of gear teeth meshing caused by torsional deformation of double planetary gear shafts under load, a topological modification method considering torsional ...
Chen Xuehui +6 more
doaj
Efficiency analysis of planetary gears [PDF]
, 2018 By kinematic combinations of toothed pairs with external and internal contacts, we can obtain planetary gears with a considerably improved performance than the corresponding ones with fixed axes, as well as planetary gears with notably poor performance regarding the efficiency.
Sedak, Miloš +5 more
openaire
Global Policy, EarlyView.ABSTRACT The European Union's proposed Space Law aims to establish a unified approach for sustainable space activities across the EU. While the EU's satellite constellations contribute to sustainability efforts, they can also have negative environmental impacts.
Elena Cirkovic, Vitali Braun
wiley +1 more source
Research on Root Strain Response Characteristics of Inner Ring of Planetary Gear Transmission System with Crack Fault. [PDF]
Sensors (Basel), 2022 Chen L, Zhang X, Wang L.
europepmc +1 more source
neonSoilFlux: An R package for continuous sensor‐based estimation of soil CO2 fluxes
Methods in Ecology and Evolution, EarlyView.Abstract Accurate quantification of soil carbon fluxes is essential to reduce uncertainty in estimates of the terrestrial carbon sink. However, these fluxes vary over time and across ecosystem types and so, it can be difficult to estimate them accurately across large scales.
John Zobitz +11 more
wiley +1 more source
Application of flexible pin for planetary gear set of wind turbine gearbox. [PDF]
Sci Rep, 2022 Yoo HG +5 more
europepmc +1 more source
Hydraulic In Vitro Characterization of MR‐Conditional Blood Pumps
Artificial Organs, EarlyView.Cardiac surgery in neonates requires close placement of cardiopulmonary bypass machines due to limited blood volume, complicating MR compatibility. This study introduces three MR‐conditional blood pump prototypes. None interfered with MRI imaging, though RF‐related sensor effects remain untested.
Dominik T. Schulte +6 more
wiley +1 more source
Thermal Behavior and Operation Characteristic of the Planetary Gear for Cutting Reducers
Applied SciencesBolter miners have been widely used in coal mining or excavation industries. Its efficiency is closely related to the performance of its cutting reducer, which is literally determined by the thermal behavior of the planetary gear set.
Jiahe Shen +6 more
doaj +1 more source