Results 111 to 120 of about 33,641 (337)

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, Rosić, Božidar, Ristivojević, Mileta, Mitrović, Radivoje, Dimić, Aleksandar, Mišković, Žarko   +5 more
openaire  

Calculation and influence analysis of tooth surface friction coefficient of planetary gear system in mixed lubrication condition [PDF]

, 2022
Jin Yang, Tengjiao Lin, Wen Liu
openalex   +1 more source

REPRESENTING POLLUTION AT THE AGRARIAN–URBAN FRONTIER: Participatory Documentary Film‐Making in Bar Elias, Lebanon

International Journal of Urban and Regional Research, EarlyView.
Abstract The Beqaa Valley in Lebanon has become increasingly polluted, and residents are attributing illness to improper waste disposal and dumping. This article explores local epistemologies of pollution’s causes and effects in three films, which were researched and produced by local residents of Bar Elias, a small town in the Beqaa, which has rapidly
Hannah Sender, Hanna Baumann, Joana Dabaj   +2 more
wiley   +1 more source

EU Space Law and Earth's Boundaries: Integrating Environmental Impact Assessment and Corporate Due Diligence

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

Design and analysis of hybrid stepping motors with integrated planetary gear trains. [PDF]

Sci Prog, 2021
Chen GC, Wang SY.
europepmc   +1 more source

Phase-Oriented Gear Systems [PDF]

Phase-oriented gear systems are differential planetary transmissions in which each planet gear has two sets of unequal numbers of teeth indexed at prescribed relative angles (phases).
Vranish, John M.
core   +1 more source

К вопросу о количественных критериях качества кинематических схем планетарных коробок передач [PDF]

, 2013
В статье предложен комплекс доработанных количественных критериев качества кинематических схем планетарных коробок передач применительно к бортовым планетарным коробкам передач военных гусеничных и колесных машин, позволяющий в автоматическом или ...
Веретенников, Евгений Александрович, Волонцевич, Дмитрий Олегович, Пасечный, С. С.   +2 more
core  

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, Edward Ayres, Zoey Werbin, Ridwan Abdi, Natalie Ashburner‐Wright, Lillian Brown, Ryan Frink‐Sobierajski, Lajntxiag Lee, Dijonë Mehmeti, Christina Tran, Ly Xiong, Naupaka Zimmerman   +11 more
wiley   +1 more source

Thermal Behavior and Operation Characteristic of the Planetary Gear for Cutting Reducers

Applied Sciences
Bolter 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, Wenyu Zhang, Chengjian Wang, Jianming Yuan, Fangping Ye, Lubing Shi, Daibing Wang   +6 more
doaj   +1 more source

Dynamic characteristics analysis of planetary gear system with internal and external excitation under turbulent wind load. [PDF]

Sci Prog, 2021
Yang H, Li X, Xu J, Yang Z, Chen R.
europepmc   +1 more source