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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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Satellite orbit secular perturbations resulting from central body oblateness for 2m-th zonal harmonics and gravitational attraction of third body
Homogeneous triaxial ellipsoid Newtonian potential expansion in series of tesseral harmonics
Vector functions expansions in spherical harmonics of directions of individual vectors
Second and fourth order sectorial harmonics determined for geopotential from long term perturbations on 12 hr satellites
HCN laser harmonic frequency mixing with two different far IR laser lines with microwave intermediate frequencies, discussing mixing SNR magnitudes
Second harmonic phase matching temperature dependence of lithium niobate on melt composition, proposing mechanism involving lithium ion vacancies
Geomagnetic intensities obtained with 1964-83C satellite used to evaluate harmonic series in relation to International Geomagnetic Reference Field
Plasmas cyclotron harmonic waves /CHW/ propagation, discussing prediction by microscopic theory based on Boltzmann equation
Low order resonant gravity harmonics determination from Soviet 12-hour satellites drift
Von Zeipel method and Hamiltonian perturbation mechanics used for orbits at resonance with tesseral harmonics of geopotential
Daily radiant energy available extraterrestrially as harmonic series in day of year
Iterative mathematical scheme determining tesseral harmonics and coordinates of observing stations
Stripline varactor harmonic multiplier uses a device for positioning the varactor diode with respect to the stripline circuit to obtain series resonance. The device also reduces detuning effects, due to thermal expansion, over a wide temperature range.
Improved coefficients of thirteenth order harmonics of geopotential derived from satellite Doppler data at three orbital inclinations
Resonant gravity harmonics of TIROS 9 satellite
Frequency shifts observed in Alouette 2 cyclotron harmonic plasma resonances
Revised coefficient values of zonal spherical harmonics in geopotential
Parametric interactions in dielectric medium with second harmonic space-time pump modulation