Results 21 to 30 of about 5,275,293 (190)

Bulk Density of the Lunar Regolith at the Chang'E‐3 Landing Site as Estimated From Lunar Penetrating Radar

Earth and Space Science, 2020
Bulk density of the lunar regolith is a key factor affecting its geophysical and geotechnical properties. In this study, a new method for estimating the bulk density of the lunar regolith is developed based on the geometric characteristic (i.e ...
Wenzhe Fa
doaj   +2 more sources

Helicopter Landing Sites Identification depending on Slope, Landing Site Dimension and Shape [PDF]

AGILE: GIScience Series, 2021
Abstract. The identification of the Helicopter Landing Sites (HLS) needs complex analysis of the terrain considering a lot of aspects. One of the unconditional aspects in this case is the slope of ground, therefore the HLS identification depending on slope, landing site dimension and shape was conducted. This paper describes the development of the tool
Eva Mertova, Martin Bures
openaire   +2 more sources

Decomposition of the β phase at intermediate temperature in β-metastable Ti-5553 alloy [PDF]

MATEC Web of Conferences, 2020
The present contribution focuses on the nature of the β → α transformation in Ti-5333 alloy at intermediate temperatures. It is indeed still unclear whether this transformation is only controlled by bulk diffusion or whether interfacial kinetics may play
Goetz Morgan, Dehmas Moukrane, Appolaire Benoît, Aeby-Gautier Elisabeth, Andrieu Sandra, Billot Thomas   +5 more
doaj   +1 more source

Landing site of the Chang’e-6 lunar farside sample return mission from the Apollo basin

Nature Astronomy, 2023
To address questions about the multiple lunar nearside–farside dichotomies and to provide new insights into both the early impact history of the Solar System and the geological evolution of the Moon, the Chang’e-6 (CE-6) landing zone has been selected to
Xingguo Zeng, Dawei Liu, Yuan Chen, Qin Zhou, X. Ren, Zhoubin Zhang, Wei Yan, Wangli Chen, Qiong Wang, Xiangjin Deng, Hao Hu, Jianjun Liu, W. Zuo, J. Head, Chunlai Li   +14 more
semanticscholar   +1 more source

The Dielectric Properties of Martian Regolith at the Tianwen‐1 Landing Site

Geophysical Research Letters, 2023
Mars' surface is characterized by a weathered layer of regolith and exposed rock exposures that are the results of long‐term geological processes. The Mars Rover Penetrating Radar (RoPeR) on board the Zhurong rover of China's first Mars mission (Tianwen ...
Ling Zhang, Yi Xu, Renrui Liu, Ruonan Chen, R. Bugiolacchi, Rui Gao   +5 more
semanticscholar   +1 more source

Geomorphic contexts and science focus of the Zhurong landing site on Mars

Nature Astronomy, 2021
As part of the Tianwen-1 mission, the Zhurong rover successfully touched down in southern Utopia Planitia on 15 May 2021. On the basis of the new sub-metre-resolution images from the High Resolution Imaging Camera on board the Tianwen-1 orbiter, we ...
Jianjun Liu, Chunlai Li, Rongqiao Zhang, W. Rao, Xiaofeng Cui, Yan Geng, Yang Jia, Hai Huang, X. Ren, Wei Yan, Xingguo Zeng, W. Wen, Xing Wang, Xingye Gao, Qiang Fu, Y. Zhu, Jihong Dong, Haitao Li, Xianzhong Wang, W. Zuo, Yan Su, D. Kong, Hongbo Zhang   +22 more
semanticscholar   +1 more source

LANDSAFE: LANDING SITE RISK ANALYSIS SOFTWARE FRAMEWORK [PDF]

The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2012
The European Space Agency (ESA) is planning a Lunar Lander mission in the 2018 timeframe that will demonstrate precise soft landing at the polar regions of the Moon.
R. Schmidt, J. Bostelmann, Y. Cornet, C. Heipke, C. Philippe, N. Poncelet, D. de Rosa, Y. Vandeloise   +7 more
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Aqueous alteration of the Vastitas Borealis Formation at the Tianwen-1 landing site

Communications Earth & Environment, 2022
The Vastitas Borealis Formation is a Hesperian-aged sedimentary unit that mainly covers the Martian northern plains. Its environment of formation is uncertain but may be related to an ancient Martian ocean, outflow channel deposits, compaction and ...
Changqing Liu, Z. Ling, Zhongchen Wu, Jiang Zhang, Jian Chen, Xiao-yan Fu, L. Qiao, Ping Liu, Bo Li, Li Zhang, Y. Xin, E. Shi, H. Cao, Shangke Tian, Sheng Wan, Hongchun Bai, Jianzhong Liu   +16 more
semanticscholar   +1 more source

Leveraging Social Media to Promote Evidence-Based Continuing Medical Education. [PDF]

PLoS ONE, 2017
New dissemination methods are needed to engage physicians in evidence-based continuing medical education (CME).To examine the effectiveness of social media in engaging physicians in non-industry-sponsored CME.We tested the effect of different media ...
Simone Flynn, Paul Hebert, Deborah Korenstein, Mark Ryan, William B Jordan, Salomeh Keyhani   +5 more
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Reunderstanding Geomorphological Features in Chang'e-5 Sampling Region Based on Multiscale Roughness Model

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2021
Chang'e-5 (CE-5) mission was successful to return samples up to 1.8 kg from the northeastern part of the Rümker region, the Moon. These samples can provide new understandings for the basaltic volcanism of northern Oceanus Procellarum ...
Wei Cao, Zhiguo Meng, Xuegang Dong, Jietao Lei, Minggang Xie, Juqing Yang, Zhanchuan Cai   +6 more
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