Launch period, targeting and error analysis for Mars direct and orbital missions.
Mission capability differences between direct and orbital Mars missions as to launch period selection, targeting capability and error analysis
Marquet, D. W.↗
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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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High-latitude outer-zone boundary region for greater than or equal to 40-kev electrons during geomagnetically quiet periods.
High latitude outer zone electrons boundary region during geomagnetically quiet periods
Fritz, T. A.↗
Rapid filling period of the left ventricle - Measurement by apexcardiography.
Left ventricle rapid filling period measurement from rapid filling wave of apexcardiogram, noting possible influences of age and sex
Kumar, S.↗
Mercury's rotation period - Photographic confirmation.
Mercury rotation period determination by surface photography, correcting earlier interpretation
Reese, E. J.↗
Conjugacy of visual auroras during magnetically quiet periods.
Spatial and temporal conjugacy of visual auroras during magnetically quiet periods
Belon, A. E.↗
Periodicities in the amplitude of ionospheric plasma resonances.
Period fluctuations in ionospheric plasma resonance amplitude, proposing hypothesis in terms of quasi-electrostatic surface waves guided by antenna wire
Fejer, J. A.↗
Periodic shock with added clock.
Response rates of rats to periodic shocking for food reinforcement with added clock cue stimuli
Hendry, D. P.↗
The stability of dynamic systems with periodically varying parameters.
Dynamic systems stability with periodically varying parameters analyzed by Hill type infinite determinant, exemplifying helicopter rotor aeroelastic stability in forward flight
Crimi, P.↗
Computer derivation of short-period lunar perturbations.
Literal algebra /SPASM/ computer program critical verification of Kozai short period lunar perturbations, discussing errors
Cherniack, J. R.↗
Periodically switched lossless networks - System functions and power relations.
Networks of ideal inductors, capacitors and periodically operated switches with no energy loss, deriving frequency-power formulas from response functions
Awipi, M.↗
A two component model of changes in Jupiter's radiofrequency rotation period.
Jupiter decametric radio source analysis suggesting two component model of rotation at both constant and variable rotational periods
Register, H. I.↗
Observations of Lamb shifts in H using spatially periodic potentials.
Resonance effects between H levels by induced electric dipole transitions, using spatially periodic potential barriers
Berry, H. G.↗
Stability of periodic orbits in the elliptic, restricted three-body problem.
Stability of periodic orbits in elliptic restricted three body problem
Broucke, R.↗
Simultaneous observations of 5- to 15-second period modulated energetic electron fluxes at the synchronous altitude and the auroral zone.
Simultaneous observations of 5 to 15 second period modulated energetic electron fluxes at synchronous altitude and auroral zone
Parks, G. K.↗
Measurements of tidal-period winds in the 95- to 135-kilometer region.
Meteor winds analysis method used on tidal period wind measurement data obtained by chemical release from rocket in 95-135 km region
Justus, C. G.↗
Launch-period selection for the 1972 Venus launch opportunity.
Mission analysis for 1972 Venus launch opportunity, discussing launch period selection and trajectory constraints for Atlas/Centaur vehicle
Fields, D. P.↗
Controllability and linear closed-loop controls in linear periodic systems.
Controllability and linear closed-loop controls in linear periodic systems
Brunovsky, P.↗
Short-period auroral pulsations in lambda 6300 O I.
Auroral short period pulsations in 6300 A O I, discussing percentage modulation, quenching rate, etc
Eather, R. H.↗