Results 71 to 80 of about 2,944,878 (288)

Photocatalytic Water Splitting on the Lunar Surface: Prospects for In Situ Resource Utilization

Advanced Materials Interfaces, EarlyView.
Water has been found in craters on the moon nearby locations which are illuminated >80% of the time. Photocatalysis uses energy from sunlight to drive chemical reactions such as water splitting to produce oxygen and hydrogen. It is a scalable technology that requires lighter equipment and utilizes resources available on the moon. ABSTRACT The discovery
Ranjani Kalyan, Thomas D. Small, Gregory F. Metha, Mahmoud Adel Hamza, Thomas J. O'Dea, Yideng Shen, Cameron J. Shearer   +6 more
wiley   +1 more source

Development and Demonstration of Navigation Doppler Lidar for Planetary Landing Missions [PDF]

EPJ Web of Conferences
A coherent Doppler lidar has been developed by NASA for providing vector velocity and altitude data to landing vehicles. Future robotic and manned missions to planetary bodies demand precise ground-relative velocity and altitude data to execute complex ...
Amzajerdian Farzin, Hines Glenn D., Gragossian Aram, Acevedo Elisa Leal, Hsu Jonathan, Laughter Sean. A., Dostart Nathan A., Heppler Jacob M., Follman Jacob J., Liles Kaitlin A.K., Martin Kimberly J., Litton Daniel. K.   +11 more
doaj   +1 more source

ARCHIVING, SECRECY AND OFF-SITE RESEARCH

, 2019
With: Cécile Boex, Leyla Dakhli, Omar Dewachi, Carolina Kobelinsky, Shourideh Molavi, William Walters, Shela Sheikh. See full abstracts below. Off-Site · "Archiving, secrecy and off-site research", A workshop of the ERC Off-Site - 9&10 September 2019 ...
Off-Site
core   +1 more source

Calibrating mars orbiter laser altimeter pulse widths at mars science laboratory candidate landing sites [PDF]

, 2014
Accurate estimates of surface roughness allow quantitative comparisons between planetary terrains. These comparisons enable us to improve our understanding of commonly occurring surface processes, and develop a more complete analysis of candidate landing
Muller, J.-P., Gupta, S., Poole, Wil, Grindrod, Peter M., Muller, Jan-Peter, Poole, W., Gupta, Sanjeev   +6 more
core   +1 more source

Habitability of the Phoenix landing site [PDF]

Journal of Geophysical Research: Planets, 2010
The Phoenix mission's key objective was to search for a habitable zone. Mission results are used to evaluate habitability where Phoenix landed. A habitability probability (HI) is defined as the product of probabilities for the presence of liquid water (Plw), energy (Pe), nutrients (Pch), and a benign environment (Pb).
Stoker, Carol R., Zent, Aaron, Catling, David C., Douglas, Susanne, Marshall, John R., Archer, Douglas, Clark, Benton, Kounaves, Samuel P., Lemmon, Mark T., Quinn, Richard, Renno, Nilton, Smith, Peter H., Young, Suzanne M.M.   +12 more
openaire   +2 more sources

A Cryopreservation‐Based Supply Chain Strategy for Extrusion Bioprinting in Space

Advanced Materials Technologies, EarlyView.
Extrusion bioprinting on crewed space platforms requires a bioink that stays functional along the logistic chain. Here, cells and biomaterial ink travel separately, the cells cryopreserved and the ink cold stored, and are combined only minutes before printing.
Johannes Windisch, Max von Witzleben, Richard Frank Richter, Finn Dani, Constantin Greil, Sarah Duin, Anja Lode, Michael Gelinsky   +7 more
wiley   +1 more source

Computational analysis of the effect of bogie inclination angle on landing gear noise

, 2010
Airframe noise and in particular main landing gear noise is a major noise source during the approach phase. Wind tunnel tests have shown a strong relationship between the inclination angle of the bogie and the noise radiation of a main landing gear ...
Takeda, K., van Mierlo, K.J., Peers, E.
core   +1 more source

Toward Perception‐Native Electronic Skin: Bio‐Inspired In‐/Near‐Sensor and Neuromorphic Computing for Humanoid Robots

Advanced Materials Technologies, EarlyView.
Dense tactile streams from across the humanoid body converge on collide in a central wiring and data bottleneck. By relocating computation closer to and then into the skin itself, near‐ and in‐sensor architectures, together with neuromorphic computing, chart a path toward perception‐native electronic skin, in which the conversion of stimulus into ...
Mijin Kim, Chang‐Jae Beak, Jiyoung Park, Youngdo Jung, Sunjong Oh, Sin‐Hyung Lee, Bo‐Yeon Lee   +6 more
wiley   +1 more source

Safe Helicopter Landing on Unprepared Terrain Using Onboard Interferometric Radar

Sensors, 2020
This letter proposes a radar interferometric survey system for the ground surface of helicopter landing sites. This system generates high-quality three-dimensional terrain surface topography data and estimates the slope of the site with the required ...
Pavel E. Shimkin, Alexander I. Baskakov, Aleksey A. Komarov, Min-Ho Ka   +3 more
doaj   +1 more source

Biological Studies. Annual Report, Part 5, September 1972

, 1972
(54 page document)Office of Sea Grant Programs, National Oceanic and Atmospheric Administration, Department of CommerceAssociation of Monterey Bay Area GovernmentsContains four reports.

core