Results 41 to 50 of about 3,904,292 (288)

A Petri nets-based modeling method for multi robot path planning

Xibei Gongye Daxue Xuebao
The construction of lunar bases is one of the core enabling technologies in current lunar exploration and development plans of various countries. However, to eliminate the constraints of high transportation costs and limited manned space technology, a ...
CHU Jing, ZHOU Li, YUE Qi, HU Yue, ZHENG Zixuan, HUANG Yong   +5 more
doaj   +1 more source

Horizons and opportunities in lunar sample science [PDF]

, 1985
The lunar sample research program was especially productive, but by no means have all the important answers been determined; continued study of lunar samples will further illuminate the shadows of our knowledge about the solar system.by Lunar and ...
Lunar and Planetary Sample Team
core  

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, J. An, X. Zheng, D. Wang, S. Wang, X. Wang, P. Zhu, J. Pei, S. Li, J. Paripurana, Y. Han, Z. Tang, X. Gan, Q. He, X. Ma   +14 more
wiley   +1 more source

Trajectory optimization for the Hevelius-lunar microsatellite mission [PDF]

, 2005
In this paper trajectory optimisation for the Hevelius mission is presented. The Hevelius-Lunar Microsatellite Mission - is a multilander mission to the dark side of the Moon, supported by a relay microsatellite, orbiting on a Halo orbit around L2. Three
Colombo, Camilla, Vasile, Massimiliano, Ceriotti, Matteo, Scarì, Ettore   +3 more
core   +3 more sources

Properties of Lunar Dust and Their Migration on the Moon

Space: Science & Technology
Lunar dust, the finest fraction of lunar regolith, has undergone important space weathering on the Moon. It not only serves as a record of the evolution of the lunar surface environment and the modification of mineral properties, but also influences the ...
Hong Jin, Xiongyao Li, Guangfei Wei, Xiaoping Zhang, Lianghai Xie, Hong Gan, Aibing Zhang, Xianguo Zhang, Lifang Li, Zhaoguo He, Yuyan Zhao   +10 more
doaj   +1 more source

Origami Metamaterials Based on Low‐Melting‐Point Alloy Phase Transition: Breaking the Trade‐Off Between Reusability and Energy Absorption Quality

Advanced Science, EarlyView.
This work presents an origami metamaterial that integrates a low‐melting‐point alloy skeleton into an elastomeric shell. It dissipates energy through the metal's plastic deformation and recovers through the solid–liquid phase transition of the alloy together with the hyperelasticity of the shell.
Yupeng Liu, Wei Zhao, Chengjun Zeng, Jiuming Fan, Yanju Liu, Jinsong Leng   +5 more
wiley   +1 more source

Simulation of Dynamic Evolution of Ring Current Ion Flux by a Lunar Base Energetic Neutral Atom (ENA) Imaging

Astronomy, 2023
The distribution of energetic ion flux in the ring current region, such as a meteorological cumulonimbus cloud, stores up the particle energy for a geomagnetic substorm.
Li Lu, Qinglong Yu, Shuai Jia, Zhong Xie, Jian Lan, Yuan Chang   +5 more
doaj   +1 more source

Lunar Base Construction [PDF]

, 1963
A brief discussion of the possibility of establishing a permanent manned lunar base is presented. The greatest difficulty in giving credence to results from lunar base studies lies in the fact that very little is known about the physical and chemical ...
Johnson, G. W.
core  

Overall Material Flow Scheme Design of Controlled Ecological Life Support System for Lunar Base

Space: Science & Technology
Recently, the Moon has once again become the focus of the aerospace field. The lunar base is likely to be the next long-term extraterrestrial base for humans after the near-Earth orbit space station.
Yibing Deng, Liangchang Zhang, Qiang Bian, Weidang Ai, Yongkang Tang, Ruixin Mao, Haonan Fan   +6 more
doaj   +1 more source

A 3D‐Printed SFE‐Graded Alloy Mitigates Cryogenic Discontinuous Plastic Flow and Hydrogen Embrittlement

Advanced Science, EarlyView.
A novel strategy features gradient composition and stacking fault energy‐tuned (CoCrMn)100‐2xFexNix fabricated via in situ alloying additive manufacturing. This design circumvents cryogenic discontinuous plastic flow and hydrogen embrittlement of metallic materials under quasi‐static loading and hydrogen‐rich environment relevant to lunar polar ...
Renhao Wu, Ao Geng, Peihao Geng, Hyojin Park, Eun Seong Kim, Sang‐Ho Oh, Stephan Schönecker, Xiaoqing Li, Tianlong Zhang, Shuhui Li, Byeong‐Joo Lee, Hyoung Seop Kim   +11 more
wiley   +1 more source