Results 171 to 180 of about 417,955 (336)

Experimental facilities of the Division of Mechanical Engineering and the National Aeronautical Establishment of the National Research Council

, 1961
National Research Council Canada. Division of Mechanical Engineering, National Research Council Canada. National Aeronautical Establishment   +1 more
openalex   +2 more sources

The Evolution of Autonomous Systems for Planetary Cave Exploration: A Review

Journal of Field Robotics, EarlyView.
ABSTRACT The exploration of Subsurface Access Points (SAPs), such as lava tubes on the Moon and Mars, has gained significant interest due to their potential as stable environments shielded from surface radiation and temperature extremes. These sites are considered high‐value targets for detecting water and signs of ancient life, and assessing their ...
Sarah Swinton, Daniel Mitchell, Jamie Blanche, Euan McGookin, David Flynn   +4 more
wiley   +1 more source

Retraction Note: Microstructure and dry sliding wear evaluation of functionally graded coating deposited via atmospheric plasma spray. [PDF]

Sci Rep
Sathish M, Radhika N, Saleh B.
europepmc   +1 more source

NASA's Role in Aeronautics: A Workshop. Volume 5: Rotorcraft [PDF]

The potential roles for NASA relating to rotorcraft are reviewed. The agency's participation is delineated for each role, a rationale is provided, the current level of activity is summarized, and suggestions are given for the kinds of research still ...

core   +1 more source

NASA Aeronautics Research

, 2008
National Research Council
openalex   +2 more sources

Strategies for Assessing Post‐Wildfire Geomorphic Resilience in Semiarid Rivers

River Research and Applications, EarlyView.
ABSTRACT We review and summarize diverse components of a catchment that can be monitored after wildfire to assess the geomorphic resilience of the river corridor in semiarid regions. We distinguish upland portions of river catchments from river corridors.
Ellen Wohl, Shayla Triantafillou, Alex Thornton‐Dunwoody, Connor Mertz, Katie Larkin, William Keenan, Steven Griffin, Dylan Davis, Lindsey Blehm   +8 more
wiley   +1 more source

Enhanced radiative cooling by large aerosol particles from wildfire-driven thunderstorms. [PDF]

Sci Adv
Li Y, Dykema JA, Peterson DA, Feng X, Shen X, June NA, Fromm MD, McHardy TM, Jacquot JL, Pittman JV, Daube BC, Wofsy SC, Dean-Day J, Rapp AD, Bowman KP, Cziczo DJ, Mickley LJ, Pierce JR, Keutsch FN.   +18 more
europepmc   +1 more source

Active Optical Remote Sensing Sensors and Instrumentation for NASAs Future Earth and Space Science Measurements/Missions [PDF]

Active optical (Laser/Lidar) measurement techniques are critical for the future National Aeronautics and Space Administration (NASA) Earth, Planetary Science, Exploration, and Aeronautics measurements.
Singh, Upendra N.
core   +1 more source

Finite Element Analysis of Warpage in Laminated Aluminium Alloy Plates for Machining of Primary Aeronautic Parts

, 2007
A.C.C. Reis, Miguel Ângelo Menezes, L. A. Moreira Filho   +2 more
openalex   +2 more sources

Wall‐to‐wall Amazon forest height mapping with Planet NICFI, Aerial LiDAR, and a U‐Net regression model

Remote Sensing in Ecology and Conservation, EarlyView.
Tree canopy height is a key indicator of forest biomass and structure, yet accurate mapping across the Amazon remains challenging. Here, we generated a canopy height map of the Amazon forest at ~4.8 m resolution using Planet NICFI imagery and a deep learning U‐Net model trained with airborne LiDAR data.
Fabien H. Wagner, Ricardo Dalagnol, Griffin Carter, Mayumi C. M. Hirye, Shivraj Gill, Le Bienfaiteur Sagang Takougoum, Samuel Favrichon, Michael Keller, Jean P. H. B. Ometto, Lorena Alves, Cynthia Creze, Stephanie P. George‐Chacon, Shuang Li, Zhihua Liu, Adugna Mullissa, Yan Yang, Erone G. Santos, Sarah R. Worden, Martin Brandt, Philippe Ciais, Stephen C. Hagen, Sassan Saatchi   +21 more
wiley   +1 more source