Results 121 to 130 of about 223,735 (247)
Shock-Impacts and Vibrational g-Forces Can Dislodge Bacillus spp. Spores from Spacecraft Surfaces. [PDF]
Microorganisms, 2023 Schuerger AC, Borrell AV.
europepmc +1 more source
Quantitative Technology Assessment in Space Mission Analysis [PDF]
New technologies will need to be developed to create feasible concepts for NASA's ambitious missions of the future, but quantitative assessments of the impacts that technologies have on systems or architectures are sporadic and often inadequate.
Arney, Dale C.
core +1 more source
Journal of Applied Ecology, EarlyView.We demonstrated the potential of phenological synchronization to estimate fine‐scale ephemeral environmental conditions crucial for migratory species. Modelled habitats revealed key stopover sites in both natural and agricultural landscapes. The maps showed gaps in the protected area network of Eurasian grasslands, especially in agriculture.
Natalia Rogova +8 more
wiley +1 more source
Coordinated Dual-Fin Actuation of Bionic Ocean Sunfish Robot for Multi-Modal Locomotion. [PDF]
Biomimetics (Basel)Huang L +5 more
europepmc +1 more source
Detect-and-Avoid: Flight Test 6 Scripted Encounters Data Analysis [PDF]
The Unmanned Aircraft System (UAS) in the National Airspace System (NAS) project conducted Flight Test 6 (FT6) in 2019. The ultimate goal of this flight test was to produce data to inform RTCA SC-228's Phase II Minimum Operational Performance Standards ...
Wang, Wei-Ching, Wu, M. Gilbert
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Journal of Ecology, EarlyView.We found that the inclusion of external drivers such as climate conditions or topography generally did not improve forecast accuracy and that at multidecadal time scales, intrinsic population processes (density‐dependent growth and dispersal dynamics) can accurately predict shifting abundances along a historical range margin.
Elise Pletcher, Robert K. Shriver
wiley +1 more source
Dynamically Controlled Flight Altitudes in Robo-Pigeons via <i>Locus Coeruleus</i> Neurostimulation. [PDF]
Research (Wash D C)Fang K +7 more
europepmc +1 more source
Metals from spacecraft reentry in stratospheric aerosol particles. [PDF]
Proc Natl Acad Sci U S A, 2023 Murphy DM +10 more
europepmc +1 more source
Development of a Mars Airplane Entry, Descent, and Flight Trajectory
, 2001 J. Murray, Paul V. Tartabini
semanticscholar +1 more source
Apollo experience report: Guidance and control systems. Lunar module stabilization and control system [PDF]
A brief functional description of the Apollo lunar module stabilization and control subsystem is presented. Subsystem requirements definition, design, development, test results, and flight experiences are discussed.
Shelton, D. H.
core +1 more source