Results 41 to 50 of about 35,386 (281)

Impact of surface Albedo on Martian photochemistry [PDF]

open access: yesEarth and Planetary Physics, 2020
Solar energy is the primary driving force behind a planet’s climate system, and surface albedo plays a key role in determining the energy budget of the planet. Coupling the Snow, Ice, and Aerosol Radiation (SNICAR) with the Laboratoire de Météorologie Dynamique (LMD) Mars General Circulation Model (MGCM) to create a new coupled model leads to an ...
openaire   +3 more sources

High‐Density Boron Nitride Nanotube Composites via Surfactant‐Stabilized Lyotropic Liquid Crystals for Enhanced Space Radiation Shielding

open access: yesAdvanced Functional Materials, EarlyView.
High‐density BNNT films, enabling mechanical robustness and high space radiation shielding effectiveness, are fabricated using surfactant‐stabilized BNNT liquid crystal. Simulations indicate that a 50 g cm−2 BNNT film can reduce radiation exposure by 56% compared to zero shielding, potentially doubling the duration of astronaut missions on the lunar ...
Young‐Kyeong Kim   +17 more
wiley   +1 more source

Space Environmental Chamber for Planetary Studies

open access: yesSensors, 2020
We describe a versatile simulation chamber that operates under representative space conditions (pressures from < 10−5 mbar to ambient and temperatures from 163 to 423 K), the SpaceQ chamber.
Abhilash Vakkada Ramachandran   +4 more
doaj   +1 more source

Enhancing Damage Tolerance of Structures Using 3D/4D Printing Technologies

open access: yesAdvanced Materials Technologies, EarlyView.
This review highlights recent advances in damage tolerance for structural design, emphasizing safety, durability, and reliability in fields like aerospace and civil engineering. It covers innovations in materials, 3D/4D printing, predictive design methods, and nature‐inspired strategies.
Morteza Sayah Irani   +3 more
wiley   +1 more source

BeeRootBot: A Bioinspired Robotic Probe Exhibiting Apical Growth through In Situ Soil Binding

open access: yesAdvanced Intelligent Systems, EarlyView.
This study introduces a novel method for consolidating subterranean exploration pathways in plant‐inspired robots by binding in‐situ soil with beeswax, a biobased material. This simultaneous advancement and wall‐lining process reduces penetration resistance, enhances exploration efficiency, enables communication and resource sharing, and promotes ...
Sachin Sachin   +4 more
wiley   +1 more source

The Martian Boulder Automatic Recognition System, MBARS

open access: yesEarth and Space Science, 2022
Boulder‐sized clasts are common on the surface of Mars, and many are sufficiently large to be resolved by the high resolution imaging science experiment (HiRISE) camera aboard the Mars reconnaissance orbiter. The size, number, and location of boulders on
Don R. Hood   +5 more
doaj   +1 more source

Martian atmospheric O3 retrieval development for the NOMAD-UVIS spectrometer [PDF]

open access: yes, 2017
The composition of atmospheric trace gases and aerosols is a highly variable and poorly constrained component of the martian atmosphere, and by affecting martian climate and UV surface dose, represents a key parameter in the assessment of suitability for
Hathi, B.   +7 more
core  

Field Measurements of Terrestrial and Martian Dust Devils [PDF]

open access: yes, 2016
Surface-based measurements of terrestrial and martian dust devils/convective vortices provided from mobile and stationary platforms are discussed. Imaging of terrestrial dust devils has quantified their rotational and vertical wind speeds, translation ...
A. Powell   +153 more
core   +5 more sources

Sulfur Cycling as a Viable Metabolism under Simulated Noachian/Hesperian Chemistries

open access: yesLife, 2022
Water present on the surface of early Mars (>3.0 Ga) may have been habitable. Characterising analogue environments and investigating the aspects of their microbiome best suited for growth under simulated martian chemical conditions is key to ...
James A. W. Oliver   +9 more
doaj   +1 more source

The depth of the convective boundary layer and implications for a Walker-like circulation on Mars [PDF]

open access: yes, 2011
Radio science observations indicate that the depth of the martian convective boundary layer varies strongly with surface height, although the surface temperature does not.
Hinson, D. P., Lewis, S. R., Spiga, A.
core  

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