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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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Observations of Van Allen radiation regions by Explorer VI satellite - visual auroras, high altitude X-ray bursts, and simultaneous satellite observations during magnetic storms
Properties of Van Allen outer radiation belt determined by ion chamber and Geiger counter instruments aboard Explorer VI satellite
Differential response curves and mean rigidity of response of ion chambers aboard balloons and satellites in free space during long-term cosmic- ray variation from 1960 to 1965
No abstract available
Total radiation intensity in interplanetary space before and after solar events of March 29 and April 9, 1960
Correlation of orbiting geophysical satellite solar flare observations with solar radio and energetic particle emission
Ionization rate profiles from solar flare X rays observed by ion chambers aboard OGO 1 and OGO 3
Solar flare X ray bursts detected by OGO spacecraft correlated with radio emission and solar flare electron and proton events
Heat transfer from shock heated argon to shock wall, noting long time secular change due to gauge thermal conductivity variation
10-50 kev solar flare X ray bursts observed by OGO satellites and correlated with radio bursts and energetic particle emission
Measurement and intensity of energetic electrons at equator at 6.6 earth radius
Correlated effects of energetic electrons at 6.6 earth radius equator and auroral zone during magnetospheric substorms
Energetic particle intensity fluctuations during bright aurora, using rocket-borne measurements
Aerodynamic broadband noise mechanism applicable to axial compressors
Substorm signature in interplanetary medium relating southward component with solar wind energy transformation
A study of compressor noise is presented, based upon supersonic, part-speed operation of a high hub/tip ratio compressor designed for spanwise uniformity of aerodynamic conditions, having straight cylindrical inlet and exit passages for acoustic simplicity. Acoustic spectra taken in the acoustically-treated inlet plenum, are presented for five operating points at each of two speeds, corresponding to relative rotor tip Mach numbers of about 1.01 and 1.12 (60 and 67 percent design speed). These spectra are analyzed for low and high frequency broadband noise, blade passage frequency noise, combination tone noise and "haystack' noise (a very broad peak somewhat below blade passage frequency, which is occasionally observed in engines and fan test rigs). These types of noise are related to diffusion factor, total pressure ratio, and relative rotor tip Mach number. Auxiliary measurements of fluctuating wall static pressures and schlieren photographs of upstream shocks in the inlet are also presented and related to the acoustic and performance data.
A Nike-Tomahawk rocket equipped to measure electric and magnetic fields and charged particles from a few eV to several hundred keV energy was flown into an auroral band on April 11, 1970. The purpose of this flight was to obtain evidence of the low-energy electrons and protons that constitute a field-aligned sheet current, and also to obtain the magnetic signature of such a current and the electric field in and near the auroral-arc electric current system. Particular attention was given to a sudden increase in the field-aligned current associated with a prior sudden increase in the electric field and a sudden change in the magnetic field, all occurring near the edge of a visual auroral arc. Data obtained are discussed and analyzed; they present an important contribution to the problem of mapping of atmospheric auroral phenomena to the magnetospheric equatorial plane.
An intra-installation model is formulated that correlates demographic, health and job related variables to the various types and amounts of leave and overtime taking behavior of employees. Statistical comparison of composite health ratings assigned to subjects based upon clinical criteria and bio-statistical data show that those employees who take the most annual leave as well as sick leave are the ones that have the poorest health ratings; employees who put in the most overtime have also the poorest health records. Stress effects of peak activity periods increase use of sick leave immediately after peak activity but not the use of annual leave.