Results 111 to 120 of about 6,619,346 (229)

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, Volume 50, Issue 16, Page 5701-5711, November 2026.
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

How do humans navigate in the virtual lunar environment?

Geo-spatial Information Science
Exploring navigation strategies in lunar environment contributes to understanding the unique navigation mechanism of humans in extraterrestrial environments. However, it is unclear whether human navigation strategies in lunar environments are the same as
Bowen Shi, T. Qin, B. He, L. Mu, W. Dong
doaj   +1 more source

Integrating Grain to Ground Motion Data for Critical Rock Bridge and Slope Failure Analysis

International Journal for Numerical and Analytical Methods in Geomechanics, Volume 50, Issue 16, Page 5891-5918, November 2026.
ABSTRACT Rock masses can fail catastrophically with little warning, yet their stability depends on hidden internal connections that channel forces and localise damage. Among these, rock bridges–a “known unknown” in slope mechanics–lock fractured rock and control how failure unfolds, but their concealed geometry and uncertain strength obscure where and ...
Antoinette Tordesillas, Shuo Zhou, Leonnardo Probst, Pat Bellett, Michal Nitka, Jacek Tejchman   +5 more
wiley   +1 more source

Concept for the Future Utilization of Lunar Underground Space and Adaptive Design Strategies

Buildings
Amid long-term human consumption of surface resources and the intensifying climate crisis, underground space has increasingly attracted attention as a viable alternative for habitation, survival, and urban resilience. Historical and contemporary examples—
Xing Xu, Minghui Xue
doaj   +1 more source

Geology of Aeolis Dorsa alluvial sedimentary basin, Mars

Journal of Maps, 2018
Aeolis Dorsa is a topographic depression, ∼800 km east of Gale Crater, located along the Mars’ dichotomy boundary. This area hosts a set of fluvial sedimentary rocks displaying an exceptional record of depositional environments and fluvial channels ...
Ilaria Di Pietro, Gian Gabriele Ori, Monica Pondrelli, Francesco Salese   +3 more
doaj   +1 more source

Embedded Interactions and Selective Disclosure: Network Effects on Conversations aboard Skylab

Symbolic Interaction, Volume 49, Issue 4, Page 1031-1056, November 2026.
How do absent others influence our interactions? We argue in this paper that interactions are embedded within networks formed by chains of specific relationships between known third parties. The anticipation of future interactions with external others conditions our interpretation of the current situation and affects our behavior in the interaction. We
Michael Schultz, Leslie DeChurch, Noshir Contractor   +2 more
wiley   +1 more source

Development of Quasi-Direct Drive Motor for Walking Robots in Extraterrestrial Environments

Engineering Proceedings
This paper presents the development of a quasi-direct drive motor for space applications, which offers opportunities for dynamic applications, such as in walking robots.
Jonas Eisenmenger, Zhongqian Zhao, Frank Kirchner   +2 more
doaj   +1 more source

Impact of Solar Radiation Pressure, Coriolis Force, and Exobase Conditions on Terrestrial Exospheric Density: MATE Simulation Results

Journal of Geophysical Research: Space Physics, Volume 131, Issue 11, November 2026.
Abstract We improved the Model for Analyzing the Terrestrial Exosphere (MATE), a kinetic exosphere model, by incorporating solar radiation pressure and Coriolis force arising from the Earth's revolution around the Sun, in addition to Earth's gravity, to investigate their impacts on the terrestrial exospheric hydrogen density. Under constant and uniform
Sang‐Yun Lee, Hyunju K. Connor
wiley   +1 more source

"Probing the limits of extremophilic life in extraterrestrial environment-simulated experiments"

, 2012
Fil: Galante, Douglas. Universidade do Sao Paulo.
Lage, Claudia, Dalmaso, Gabriel, Texeira, Lia, Bendia, Amanda, Paulino Lima, Ivan, Galante, Douglas, Janot Pacheco, Eduardo, Abrevaya, Ximena Celeste, Azúa Bustos, Armando, Pellizzari, Vivian, Rosado, Alexandre   +10 more
openaire   +3 more sources

CO depletion in infrared dark clouds

Astronomy & Astrophysics
Context. Infrared dark clouds (IRDCs) are cold, dense structures that are likely representative of the initial conditions of star formation. Many studies of IRDCs employ CO to investigate cloud dynamics, but CO can be highly depleted from the gas phase ...
Cosentino G., Tan J. C., Gainey C., Law C. Y., Hsu C.-J., Xu D., Lim W., Jiménez-Serra I., Barnes A. T., Fontani F., Henshaw J. D., Caselli P., Viti S.   +12 more
doaj   +1 more source