Results 101 to 110 of about 8,641,712 (236)

INDOOR RADAR CROSS SECTION MEASUREMENTS OF SIMPLE TARGETS DOI 10.5028/jatm.2012.04014711

open access: yesJournal of Aerospace Technology and Management, 2012
This paper has described the radar absorbing materials characterization and radar cross section measurements, in the frequency range of 8 to 12 GHz, using a very simple setup.
Marcelo Alexandre Souza Miacci   +4 more
doaj  

The OAST space power program [PDF]

open access: yes
The NASA Office of Aeronautics and Space Technology (OAST) space power program was established to provide the technology base to meet power system requirements for future space missions, including the Space Station, earth orbiting spacecraft, lunar and ...
Bennett, Gary L.
core   +1 more source

Evaluating Forest Aboveground Biomass Products by Incorporating Spatial Representativeness Analysis

open access: yesRemote Sensing
Forest aboveground biomass (AGB) products serve as essential references for research on carbon cycle and climate change. However, significant uncertainties exist regarding forest AGB products and their evaluation methods.
Yin Wang   +5 more
doaj   +1 more source

Numerical study on transonic shock oscillation suppression and buffet load alleviation for a supercritical airfoil using a microtab

open access: yesEngineering Applications of Computational Fluid Mechanics, 2016
The effect of microtabs on shock oscillation suppression and buffet load alleviation for the National Aeronautics and Space Administration (NASA) SC(2)-0714 supercritical airfoil is studied.
Jinli Liu, Zhichun Yang
doaj   +1 more source

Enhancing space transportation: The NASA program to develop electric propulsion [PDF]

open access: yes
The NASA Office of Aeronautics, Exploration, and Technology (OAET) supports a research and technology (R and T) program in electric propulsion to provide the basis for increased performance and life of electric thruster systems which can have a major ...
Barnett, John W.   +3 more
core   +1 more source

Numerical Investigation of the Aerodynamic Properties of a Flying Wing Configuration [PDF]

open access: yes, 2012
The numerical investigations of a generic UCAV configuration are presented. These investigations are part of the DLR internal project UCAV-2010. Compressible speed conditions are considered and presented.
Huber, Kerstin Claudie   +2 more
core  

Eco-Friendly Sol–Gel Coatings with Organic Corrosion Inhibitors for Lightweight AZ61 Alloy

open access: yesGels
The latest advances in technology and materials science have catalyzed a transformative shift towards the adoption of environmentally conscious and lightweight materials across key sectors such as aeronautics, biomedical, and automotive industries ...
Jorge Domínguez-Martínez   +7 more
doaj   +1 more source

This is NASA [PDF]

open access: yes, 1971
The organization, operations, functions, and objectives of NASA are outlined. Data include manned space flights, satellite weather observations, orbiting radio relays, and new views of the earth and beyond the earth as observed by satellites.

core   +1 more source

Highly fluorinated polyurethanes [PDF]

open access: yes, 1973
The reaction perfluorinated hydroxyl terminated polyether with diisocyanate to form polyurethane is discussed.
Rochow, S. E., Stump, E. C., Jr.
core   +1 more source

First U.S.-ESRO satellite launch late this month [PDF]

open access: yes, 1967
Telemetry, antenna, command, power, solar array, battery, attitude control, spin-up, de-spin, housekeeping, and thermal control systems for ESRO II satellite - press kit ...

core   +1 more source

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