Results 111 to 120 of about 7,493,826 (258)
Design of New Ravigneaux Planetary Gearset Automatic Transmissions for Automobile
Jixie chuandong, 2018 A group of long pinion-to-short pinion planetary gears are added into the traditional Ravigneaux planetary gearset and one planetary gear meshes with two others.
Zhang Jian, Xue Huanzhang
doaj
Evolution of Steam Worlds: Energetic Aspects
The Astrophysical JournalSub-Neptunes occupy an intriguing region of planetary mass–radius space, where theoretical models of interior structure predict that they could be water-rich, where water is in steam and supercritical state.
Artyom Aguichine +5 more
doaj +1 more source
Insights into lunar crustal structure and Martian climate history from surface features
, 2014 Thesis: Ph. D. in Planetary Sciences, Massachusetts Institute of Technology, Department of Earth, Atmospheric, and Planetary Sciences, 2014.Cataloged from PDF version of thesis.Includes bibliographical references.Orbital spacecraft make observations of a
Sori, Michael M. (Michael Manuel)
core
Low‐Outgassing Liquid Metal–Silicone Composites for Multifunctional Space Applications
Advanced Materials Technologies, EarlyView.Integrating liquid metal microdroplets into a space‐grade silicone creates a multifunctional composite while preserving its inherent flexibility and low‐outgassing behavior. The composite has 11×$\times$ higher thermal conductivity while remaining thermally stable and maintaining a total mass loss of ≤$\le$ 1% under thermal vacuum testing.
Spencer Pak +5 more
wiley +1 more source
Fault Analysis and Structural Improvement Design of Planetary Gear in Wind Turbine Gearbox
Jixie chuandong, 2019 Focusing on planetary gear fault of traditional NGW type wind turbine gearbox， the fault analysis in the process of using is carried out， finding out why the planetary gear is damaged and an improved design of transmission structure for wind turbine ...
Yonghong Li
doaj
AerospaceIn order to explore the influence of wheel surface structure on the trafficability of planetary rovers on soft ground, three kinds of wheels with different rigid wheel surface structures were selected for research. The basic performance parameters of the
Xinju Dong +6 more
doaj +1 more source
Modeling, Testing, and Characteristic Analysis of a Planetary Flywheel Inerter
Shock and Vibration, 2018 We propose the planetary flywheel inerter, which is a new type of ball screw inerter. A planetary flywheel consists of several planetary gears mounted on a flywheel bracket. When the flywheel bracket is driven by a screw and rotating, each planetary gear
Zheng Ge, Weirui Wang
doaj +1 more source
The 3D structure of the Ring nebula
, 2009 The Ring nebula (M57) is one of the closest and best observed planetary nebulae. Still, its structure remains controversial. Based on detailed spectroscopic observations of the kinematics we present a solution generated with SHAPE to the 3D structure of ...
Steffen, W +6 more
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Micromachined Double‐Membrane Mechanically Tunable Metamaterial for Thermal Infrared Filtering
Advanced Photonics Research, Volume 6, Issue 5, May 2025.Herein, a mechanically tunable double‐layer plasmonic metamaterial leveraging the extraordinary optical transmission effect observed in subwavelength arrays of openings within thin metal layers is presented. The concept is experimentally validated by integrating the proposed metamaterial structure into an electrostatic parallel‐plate actuator to create
Oleg Bannik +7 more
wiley +1 more source
Nonlocomotory Robotic Strategies for Dynamic Rotation Control in Terrestrial Robots: A Review
Advanced Robotics Research, EarlyView.Terrestrial robots increasingly require rapid body rotation to maintain stability and agility in complex environments. This review shows nonlocomotory rotational control strategies that operate without ground contact, including reaction wheels, tails, bars, limbs, and thrusters.
Y. Liang +14 more
wiley +1 more source