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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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At least 73 records · Page 4

All sources NASA NTRS DOE OSTI

NASA NTRS1968

Lyman-alpha production and polarization in He super plus collisions with H and H sub 2.

Total Lyman alpha production cross section for positive He ion collision with atomic and molecular H, noting polarization values

Mcgowan, J. W.↗

NASA NTRS1968

Partition functions of the ground electronic states of H sub 3 super plus and H sub 2 super plus.

Partition functions for ground electronic states of positive simple H and trihydrogen molecular ions

Patch, R. W.↗

NASA NTRS1969

Pion capture in super 6 Li and super 7 Li, the formation of super 4 H, a search for super 5 H.

Lithium 6 and 7 fission following pion capture, searching for H 4 and 5

Coulson, L.↗

NASA NTRS1969

Simultaneous HCN and H sub 2 O laser emission in mixtures containing H, C, N, and O.

Simultaneous HCN and HOH laser emission in pulsed discharge through mixture containing H, C, N and O

Haak, F. A.↗

NASA NTRS1969

On the solution H sub 1 mu of Ambarzumian- Chandrasekhar H-equation

Solutions of Ambarzumian-chandrasekhar H-equation for radiative transfer

Abhyankar, K. D.↗

NASA NTRS1971

Delta-85 Orbiting Solar Observatory-H (OSO-H) Operations summary

The objectives of the Orbiting Solar Observatory (OSO-H) are discussed. Subjects considered are the: (1) mission objectives, (2) mission plan, (3) post launch operations, (4) communications, and (5) test operations. Illustrations of the satellite configuration and the Delta 85 launch vehicle are included.

Source record↗

NASA NTRS1972

Delta-90 Interplanetary Monitoring Platform-H (IMP-H)

The operations summary for the IMP-H spacecraft is presented. The subjects discussed are: (1) mission objective, (2) description of launch vehicle and spacecraft, (3) mission plan, (4) flight plan, and (5) post launch operations. Details of the mission are presented in drawings and tables of data.

Source record↗

NASA NTRS1972

Delta-90 Interplanetary Monitoring Platform-H (IMP-H) flash flight report

The Delta-90 launch vehicle and the IMP-H spacecraft were successfully launched from Pad B, Complex 17, Cape Kennedy Air Force Station, Florida, at 2120:00.559 EDT on September 22, 1972. The countdown proceeded smoothly to liftoff with no major difficulties or unscheduled holds. The Delta-90/IMP-H were launched on a pad azimuth of 115 degrees, the vehicle ten rolled to 95 degrees from the north placing the spacecraft in a highly elliptical transfer orbit. Firing the spacecraft kickmotor at 1136 EDT, September 25, 1972, injected the spacecraft into its final desirable near-circular orbit approximately half way between the planet earth and its moon. Vehicle performance of all stages appeared nominal with all sequenced events occurring at the expected times. Data acquisition from all range stations was very good. Damage to the launch pad caused by liftoff was nominal.

Source record↗

NASA NTRS1986

Utilization of potatoes for life support systems. II - The effects of temperature under 24-h and 12-h photoperiods

The effects of temperature and the photoperiod length on the growth and tuberization of Norland potatoes were investigated for two photoperiods, 12-h and 24-hr at 400 micromol/sq m per sec PPF, and at temperatures of 12, 16, 20, 24, and 28 C. It was found that stem length increased with increasing temperature under both photoperiods. The highest tuber yield was obtained at 16 C under the 24-hr photoperiod and at 20 C under the 12-hr photoperiod (i.e., increasing the photoperiod from 12 to 24 hrs effectively decreases the optimal temperature for tuber formation). Little or no tuber formation occurred at 28 C under either photoperiod.

Wheeler, Raymond M.↗

NASA NTRS1994

Soft X-ray and H I surveys of the low N(sub H) region in Ursa Major

A region of almost 300 deg squared in Ursa Major around the direction of the lowest neutral hydrogen column density in the sky has been surveyed in the 1/4 keV X-ray band (approximately 0.12 to 0.284 keV at 10% of the peak response) using the ROSAT position sensitive proportional counter (PSPC) and has been fully mapped in the 21 cm line of neutral hydrogen with an angular resolution of 21' or better. We present maps of these two data sets and an analysis of the spatial correlation between them. Over the entire field, the 1/4 keV band X-ray count rate shows a strong negative correlation with the column density of Galactic neutral hydrogen. We discuss the local, extragalactic, and halo contributions to the observed diffuse X-ray intensity and derive an upper limit to the Galactic X-ray emission originating beyond this H I distribution that is more than a factor of 7 smaller than the inferred flux beyond the Draco nebula, an apparent halo object located approximately 41 degs away. This implies that while there may be significant amounts of hot gas in the Galactic halo, its properties must vary strongly across the sky.

Snowden, S. L.↗

NASA NTRS1969