Results 21 to 30 of about 2,807 (203)

Water Electrolysis Technologies for Extraterrestrial Water Resource Conversion

EcoEnergy, EarlyView.
This paper reviews four water electrolysis technologies for extraterrestrial water conversion: alkaline water electrolysis, proton exchange membrane water electrolysis, solid oxide water electrolysis, and anion exchange membrane water electrolysis. It elaborates on their mechanisms, components, and integration, highlighting challenges such as water ...
Yawen Jiang, Yuan Zhao, Lin Zu, Lili Ling, Yongwei Zhao, Jun Di, Pin Song   +6 more
wiley   +1 more source

Study on locomotion systems of lunar exploration roverson loose soil

Studies in Science and Technology, 2012
In future lunar exploration missions, lunar rovers are required to traverse over very rough terrain. On the lunar surface, there are covered with soils, which are named regolith. Regolith is easy to slide.
Kojiro Iizuka, Takashi Kubota
doaj   +1 more source

Development and properties of a magnetic high-titanium lunar regolith simulant IRSM-1

Yantu gongcheng xuebao, 2023
The moon exploration has progressed into the stage of in-situ resource utilization (ISRU). Systematically understanding the unique mechanical response and engineering characteristics of the lunar regolith is crucial for the development and exploitation ...
ZHOU Ningxi 1, 2, CHEN Jian 1, 2, 3, 4, HUANG Juehao 1, 2, TIAN Ning 1, 2, WU Peng 1, 2
doaj   +1 more source

Decoupling glacier retreat and surface stabilization on the Snežnik Plateau (Slovenia), insights from in situ cosmogenic 36Cl exposure and depth‐profile ages

Journal of Quaternary Science, EarlyView.
ABSTRACT Glaciokarst landscapes pose distinctive challenges for cosmogenic dating because meltwater and runoff can be rapidly rerouted into ponors and conduit networks, weakening glacier–river coupling and promoting local sediment storage. We reconstruct glacier retreat and postglacial stabilization on the Snežnik Plateau (SW Slovenia) using in situ ...
Onur Altınay, Mehmet Akif Sarıkaya, Uroš Stepišnik, Manja Žebre, Cengiz Yıldırım, Attila Çiner, Klaus M. Wilcken   +6 more
wiley   +1 more source

Effects of Ambient Moisture and Large‐Strain Dynamic Preloading on the Dynamic Properties of the EAC‐1A Regolith Simulant

International Journal for Numerical and Analytical Methods in Geomechanics, EarlyView.
ABSTRACT The EAC‐1A lunar mare simulant, a silty sand, was selected by the European Astronaut Center (EAC) for use in the LUNA analogue facility's lunar simulation testbed. Its stress‐ and strain‐dependent shear modulus and damping ratio were determined via resonant column testing on specimens prepared either from ambient moisture material or oven ...
Christos Vrettos
wiley   +1 more source

Investigation of the melting behavior of laser-melted lunar regolith simulant for in-situ construction

Journal of Materials Research and Technology
Additive manufacturing of lunar regolith is one of the most promising methods for lunar surface construction. In order to obtain excellent formability of lunar regolith, the interaction between laser and lunar regolith has to be studied in detail.
Fen Dang, Zekai Wang, Yuan Li, Wucheng Sun, Yan Zhou, Cheng Zhou   +5 more
doaj   +1 more source

Estimating the critical angle of top near‐surface layers on the Moon

Near Surface Geophysics, EarlyView.
Abstract Near‐surface characterization of the lunar subsurface is essential for future exploration and infrastructure development, particularly for the construction of underground habitats that provide protection against radiation and micrometeorites. However, conventional seismic approaches for estimating subsurface properties typically rely on prior ...
Nelson Ricardo Coelho Flores Zuniga, Deyan Draganov   +1 more
wiley   +1 more source

Morphological and Spectral Characterization of Lunar Regolith Breakdown due to Water Ice

The Planetary Science Journal
Remote sensing observations of the Moon suggest that the lunar polar regolith environment is affected by several natural processes that may cause the regolith in these regions to become more porous and fine particulate.
A. Shackelford, K. L. Donaldson Hanna, M. Horton, D. Noce   +3 more
doaj   +1 more source

A microphysical thermal model for the lunar regolith: Determining the lunar regolith properties using a combination of LRO/Diviner and Chang’E-2/MRM data

Astronomy & Astrophysics
Context. The surface of the Moon is covered by regolith and its microphysical structure is not only linked to surface processes and regolith evolution, but is also important for in situ resource utilization and mission planning. Aims.
Bürger Johanna, Feng Jianqing, Siegler Matthew A., Blum Jürgen   +3 more
doaj   +1 more source

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