Results 61 to 70 of about 23,883 (240)

Numerical Simulations of the Lunar Penetrating Radar and Investigations of the Geological Structures of the Lunar Regolith Layer at the Chang’E 3 Landing Site

International Journal of Antennas and Propagation, 2017
In the process of lunar exploration, and specifically when studying lunar surface structure and thickness, the established lunar regolith model is usually a uniform and ideal structural model, which is not well-suited to describe the real structure of ...
Chunyu Ding, Yan Su, Shuguo Xing, Shun Dai, Yuan Xiao, Jianqing Feng, Danqing Liu, Chunlai Li   +7 more
doaj   +1 more source

The genesis of regolith-hosted rare earth element and scandium deposits: Current understanding and outlook to future prospecting

Chinese Science Bulletin, 2020
Rare earth elements (REE) and scandium (Sc) have become strategical and critical resources to nations worldwide. Currently, regolith-hosted REE deposits in South China and the neighbouring regions provide more than 90% of the global heavy REE (HREE ...
Mei‐Fu Zhou, Martin Yan Hei Li, Jiacheng Liu, Xiaochun Li, Zhenchao Wang   +4 more
semanticscholar   +1 more source

Mineralogical sources of groundwater fluoride in Archaen bedrock/regolith aquifers: Mass balances from southern India and north-central Sri Lanka

Journal of Hydrology: Regional Studies, 2015
Study region: The Maheshwaram and Waipally catchments of Andhra Pradesh, India, and the Plonnaruwa catchment of north-central Sri Lanka. Study focus: The distribution of F across eight crystalline phases and between the bedrock and the regolith at eleven
B.M. Hallett, H.A. Dharmagunawardhane, S. Atal, E. Valsami-Jones, S. Ahmed, W.G. Burgess   +5 more
doaj   +1 more source

A Miniaturized 3D Heat Flux Sensor to Characterize Heat Transfer in Regolith of Planets and Small Bodies

Sensors, 2020
The objective of this work is to present the first analytical and experimental results obtained with a 3D heat flux sensor for planetary regolith. The proposed structure, a sphere divided in four sectors, is sensible to heat flow magnitude and angle ...
Manuel Domínguez-Pumar, Jose-Antonio Rodríguez-Manfredi, Vicente Jiménez, Sandra Bermejo, Joan Pons-Nin   +4 more
doaj   +1 more source

Composition and Basic Physical Properties of the Phobos Surface: A Comprehensive Review

Applied Sciences
The surface of Phobos is an intriguing subject of research for many scientists. This is associated, among other things, with the fact that it is perceived as a potential launch site for future human Mars exploration.
Malwina Kolano, Marek Cała, Agnieszka Stopkowicz   +2 more
doaj   +1 more source

Structural Analysis of Lunar Regolith from LPR CH-2 Data Based on Adaptive f-x E MD: LPR Data Processed by Adaptive f-x EMD

Advances in Astronomy, 2019
The Lunar Penetrating Radar (LPR) is one of the important scientific payloads in China’s Chang’E-3 (CE-3) to image within 100 m below the lunar surface. The acquired LPR data is significant for the research of lunar geological structure.
Bin Hu, Deli Wang, Ling Zhang, Zhaofa Zeng   +3 more
doaj   +1 more source

Parameter Estimation of Lunar Regolith from Lunar Penetrating Radar Data

Sensors, 2018
Parameter estimation of the lunar regolith not only provides important information about the composition but is also critical to quantifying potential resources for lunar exploration and engineering for human outposts.
Ling Zhang, Zhaofa Zeng, Jing Li, Ling Huang, Zhijun Huo, Kun Wang, Jianmin Zhang   +6 more
doaj   +1 more source

The charge state of electrostatically transported dust on regolith surfaces

Geophysical Research Letters, 2017
The charge state of dust particles on regolith surfaces exposed to ultraviolet radiation or plasma is investigated for understanding the role of electrostatic dust transport in the surface evolution of airless planetary bodies.
J. Schwan, X. Wang, H.‐W. Hsu, E. Grün, M. Horányi   +4 more
doaj   +1 more source

Development and Evaluation of Regolith Mass Estimation Sensor Based on Photoresist Effect

Aerospace
This paper presents the design, implementation, and laboratory validation of an optoelectronic-based mass estimation sensor for regolith sampling devices.
Arkadiusz Tkacz, Karol Seweryn
doaj   +1 more source

Rock Location and Quantitative Analysis of Regolith at the Chang’e 3 Landing Site Based on Local Similarity Constraint

Remote Sensing, 2019
Structural analysis of lunar regolith not only provides important information about lunar geology but also provides a reference for future lunar sample return missions.
Bin Hu, Deli Wang, Ling Zhang, Zhaofa Zeng   +3 more
doaj   +1 more source