Results 41 to 50 of about 1,325,145 (304)

Particle size distributions inside and around the artificial crater produced by the Hayabusa2 impact experiment on Ryugu

open access: yesEarth, Planets and Space, 2022
Japanese Hayabusa2 spacecraft has successfully carried out an impact experiment using a small carry-on impactor (SCI) on an asteroid (162173) Ryugu. We examine the size distribution of particles inside and outside an artificial impact crater (the SCI ...
K. Ogawa   +30 more
doaj   +1 more source

Robots and Humans: Synergy in Planetary Exploration [PDF]

open access: yesAIP Conference Proceedings, 2003
How will humans and robots cooperate in future planetary exploration? Are humans and robots fundamentally separate modes of exploration, or can humans and robots work together to synergistically explore the solar system? It is proposed that humans and robots can work together in exploring the planets by use of telerobotic operation to expand the ...
openaire   +2 more sources

Chitin‐Derived Carbon‐Metal Functional Materials

open access: yesAdvanced Functional Materials, EarlyView.
Functional carbon materials are synthesized from combination of biopolymer (chitin) and iron precursors. The resultant material exhibits superior surface area and adsorptive properties compared to carbon materials synthesized directly from pure chitin.
Herry Fang   +7 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

Electrochemical Pathways for Nitrate Conversion to Ammonia: From Environmental Challenges to Ammonia Economy

open access: yesAdvanced Functional Materials, EarlyView.
This perspective presents recent advances in electrocatalytic nitrate reduction, focusing on reaction mechanisms, catalyst design, and electrolyzer configurations. Key challenges in selectivity, stability, and practical wastewater treatment are highlighted, while future directions for advancing sustainable ammonia synthesis and nitrate remediation are ...
Xintong Li   +9 more
wiley   +1 more source

Dust measurements with the Mars Dust Counter on board Nozomi (PLANET-B)

open access: yesEarth, Planets and Space
Nozomi was Japan’s first space mission to Mars, launched on 3 July 1998 UT. It was equipped with the Mars Dust Counter (MDC) which was an impact ionisation dust detector.
Harald Krüger   +5 more
doaj   +1 more source

A Combined Deconvolution and Gaussian Decomposition Approach for Overlapped Peak Position Extraction From Large-Footprint Satellite Laser Altimeter Waveforms

open access: yesIEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2020
In satellite laser altimetry, it is a challenging task to accurately extract peak positions from full waveforms due to the overlapped or weak peaks within the large laser footprints, which substantially affects the subsequent applications.
Zhijie Zhang   +14 more
doaj   +1 more source

Planetary protection: an international concern and responsibility

open access: yesFrontiers in Astronomy and Space Sciences, 2023
Planetary protection is a set of measures agreed upon at an international level to ensure the protection of scientific investigation during space exploration.
Athena Coustenis   +21 more
doaj   +1 more source

Microscale Patterning of Ultrahigh‐Viscosity Metallic‐Polymer Composites via Embedded Droplet Writing

open access: yesAdvanced Functional Materials, EarlyView.
A hybrid additive manufacturing platform integrates direct droplet writing of metallic composite with VAT photopolymerization to fabricate architected soft magnetic composites. This approach enables microscale patterning of high‐viscosity materials for programmable actuators, adaptive fluidic devices, and switchable adhesives, offering tunable ...
Yeowon Yoon   +4 more
wiley   +1 more source

Extracting accurate terrain in vegetated areas from ICESat-2 data

open access: yesInternational Journal of Applied Earth Observations and Geoinformation, 2023
The uncertainty of ICESat-2 terrain accuracy, especially in vegetated areas, limits its scientific application, and there is barely any comprehensive modeling evaluation for this uncertainty.
Binbin Li   +5 more
doaj   +1 more source

Home - About - Disclaimer - Privacy