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Search indexed NASA NTRS and DOE OSTI research on propulsion, heat transfer, battery materials and energy systems. Follow report and document links to the original sources.
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In the period 1980-84, observations of relativistic and low energy (30 E 70 MeV/n) cosmic ray nuclei from Pioneer 10 in the outer heliosphere and from IMP-8 at AU show that increases as well as decreases in intensity propagate outward at velocities equal to or greater than the average solar wind velocity.
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The exploration of Mars has been the focus of increasing scientific interest about the planet and its relationship to Earth. A multi-criteria decision-making approach was developed to address the question, Given a Mars program composed of mission concepts dependent on a variety of alternative technology development programs, which combination of technologies would enable missions to maximize science return under a constrained budget?.
The purpose of the study was to assess feasibility and utility, and to prototype adaptations to the approach as and when such adaptations were found to be needed.
Flight tests were made with a Kellett YG-1 autogiro to determine the relationship between the ground reaction and the vertical velocity at contact for landings of the flared and gliding three-point types. The data obtained are presented in the form of time histories of linear accelerations at the center of gravity resulting from the initial landing impact. In addition, the attitude angle and velocity of the autogiro at contact were measured. The landings were all mild as compared to those representative of airplanes tested in this manner, the maximum vertical velocity being 4.4 feet per second with a corresponding normal acceleration of 2.35 g.
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Explore the source record for details and available documents.
R.f. power transfer to a hydrogen plasma at frequencies near the ion cyclotron frequency
Precipitate clustering in binary alloys - particle size related to aging time in quenched alloys
Linear signal to noise summer design and development - pulse and frequency modulation transmitters and receivers
Evaluation and testing of suitability of using integrated circuits in Saturn IB and launch vehicle data adapter
Research and development in international trade and investment of United States industries
Types and frequencies of problems encountered by project and laboratory managers working on 32 government-supported projects in aerospace and electronics industries
Aerospace technology transferred to medical and biological applications
Thermodynamic effects of cavitation in low temperature liquid hydrogen over range of flow coefficients using flat plate helical inducer
Azimuthal sampling of electron flux on spinning satellite provide direction and magnitude of energetic electron space gradients at trapping magnetospheric boundaries
OGO 3 search coil magnetometer data correlated with magnetopause crossing by ATS 1 satellite, discussing OGO 3 crossing of outer magnetosphere into interplanetary medium