Results 81 to 90 of about 1,196,768 (246)

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

open access: yesInternational 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

Properties of Lunar Dust and Their Migration on the Moon

open access: yesSpace: 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   +10 more
doaj   +1 more source

Annual meeting of the Lunar Exploration Analysis Group : November 7-9, 2011, Houston, Texas [PDF]

open access: yes, 2011
The focus of this meeting was a discussion of the options and opportunities for the next decade of lunar science and exploration and included presentations and discussions on science objectives, robotic and human exploration strategies and technologies ...

core  

Computational Analysis of the Vibrational Response of Lunar Regolith Made of Nonspherical Grains

open access: yesInternational Journal for Numerical and Analytical Methods in Geomechanics, EarlyView.
ABSTRACT Vibration‐based systems have shown that appropriately oriented and tuned mechanical oscillations can disrupt regolith interlocking and promote flow. Building on this evidence, the present study investigates vibration‐controlled granular discharge as a potential ISRU (In Situ Resource Utilization) strategy, with the aim of supporting ...
Lewis Traquair   +4 more
wiley   +1 more source

An Open Database of Lunar Regolith and Simulants Properties

open access: yesInternational Journal for Numerical and Analytical Methods in Geomechanics, EarlyView.
ABSTRACT Lunar regolith, the layer of unconsolidated material covering the Moon's surface, is central to the science and technology developed for the Moon, notably related to in‐situ science investigations, resource utilization, surface infrastructure, and mobility systems.
Léonie Gasteiner   +2 more
wiley   +1 more source

Cross-section extraction and model reconstruction of lava tube based on L1-medial skeleton

open access: yesInternational Journal of Applied Earth Observations and Geoinformation
Lunar lava tube caves, due to their unique geographical structure and potential as shelters, have repeatedly emerged as prime candidates or priority areas during discussions on lunar base site selection.
Qiao Yang   +7 more
doaj   +1 more source

Annual Meeting of the Lunar Exploration Analysis Group : October 22-24, 2014 Laurel, Maryland [PDF]

open access: yes, 2014
The focus for this year's meeting is the topic of lunar volatiles — which species are present, their abundance on the surface and interior, their sources and formation processes, their mobility and temporary storage on the surface, and their ultimate ...

core  

Interplanetary frontiers: terraforming from an invasion science perspective

open access: yesOikos, EarlyView.
The pursuit of a multi‐planetary existence represents one of humanity's greatest frontiers. If applied justly, it offers an opportunity to extend its civilization's lifespan amid escalating sustainability crises on Earth. One approach increasingly gaining traction is terraforming, a hitherto theoretical ecological and evolutionary experiment revolving ...
Teun Everts   +2 more
wiley   +1 more source

Do cultural taboos regulate hunting in transitioning Indigenous communities? The case of the Idu Mishmi of Northeast India

open access: yesPeople and Nature, EarlyView.
Abstract There is rising recognition of resource‐use rights of Indigenous Peoples and Local Communities (IPLCs) within wildlife conservation. Historically, sociocultural institutions ensured wildlife sustainability in many IPLC areas. However, the future viability of such institutions is uncertain as IPLCs change in response to external pressures and ...
Sahil Nijhawan   +5 more
wiley   +1 more source

Exploring the lunar water cycle

open access: yesProceedings of the National Academy of Sciences
The presence of water on the Moon has been indicated by various remote-sensing observations and analyses of returned samples. Several missions are planned to conduct new in situ research on the lunar surface to directly observe and characterize lunar water.
openaire   +2 more sources

Home - About - Disclaimer - Privacy