Results 91 to 100 of about 3,516,371 (307)

In situ, Surface-deployed Distributed Instruments for Planetary Science: Scientific Opportunities and Technology Feasibility

open access: yesThe Planetary Science Journal
In this paper, we assess the scientific promise and technology feasibility of in situ distributed instruments for planetary surface and atmospheric science. A distributed instrument is an instrument designed to collect spatially and temporally correlated
Federico Rossi   +8 more
doaj   +1 more source

Dynamics of Small Bodies in Planetary Systems [PDF]

open access: yes, 2008
Lect. Notes Phys. 758, in press (preprint)
openaire   +2 more sources

Nonlocomotory Robotic Strategies for Dynamic Rotation Control in Terrestrial Robots: A Review

open access: yesAdvanced 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

Analysis of the Dynamic Load Sharing Characteristic of Two-stage Planetary Transmission

open access: yesJixie chuandong, 2016
To study the dynamic load sharing characteristics of two- stage planetary gear train,a translation- torsion coupling dynamics model is established by taking the nonlinear factors like time- varying mesh stiffness,position error,eccentric error,gear ...
Li Siqian, Wu Shijing, Wang Xiaosun
doaj  

Ocean dynamics shape marine heatwaves and their predictability

open access: yesNature Communications
Marine heatwaves have become more frequent and intense under anthropogenic warming, posing increasing threats to marine ecosystems and coastal societies, necessitating a better understanding of their mechanism and predictability.
Xianglin Ren, Wei Liu, Liping Zhang
doaj   +1 more source

Research of Load Sharing Performance of Hub Reducer with Considering the Flexible of Planetary Pin

open access: yesJixie chuandong, 2020
Taking the distributed electric drive hub reducer as study object,by using the FEA method, the support stiffness of the planetary wheel bearing and the flexible pin is solved.
Li Xuan
doaj  

Multimodal Locomotion in Insect‐Inspired Microrobots: A Review of Strategies for Aerial, Surface, Aquatic, and Interfacial Motion

open access: yesAdvanced Robotics Research, EarlyView.
This review identifies key design considerations for insect‐inspired microrobots capable of multimodal locomotion. To draw inspiration, biological and robotic strategies for moving in air, on water surfaces, and underwater are examined, along with approaches for crossing the air–water interface.
Mija Jovchevska   +2 more
wiley   +1 more source

轮边减速器行星齿轮结构动力学分析

open access: yesJixie chuandong, 2011
Using 3D modeling software,geometric model of the wheel planetary gear reducer structure is established,based on heavy-duty truck wheel reducer planetary gear structure and the loading characteristics,a planetary gear structure of three-dimensional ...
王铁, 柴少彪
doaj  

The topology of non-linear global carbon dynamics: from tipping points to planetary boundaries

open access: yesEnvironmental Research Letters, 2013
We present a minimal model of land use and carbon cycle dynamics and use it to explore the relationship between non-linear dynamics and planetary boundaries.
J M Anderies   +3 more
doaj   +1 more source

Waveguide Photoactuators: Materials, Fabrication, and Applications

open access: yesAdvanced Robotics Research, EarlyView.
Waveguide photoactuators convert guided light into mechanical motion. Their tethered‐flexible design enables minimally invasive surgery and confined‐space robotics. This review aims to guide materials selection, device design, and system integration, accelerating the transition of waveguide photoactuators from laboratory prototypes to versatile ...
Minjie Xi   +4 more
wiley   +1 more source

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