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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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Warm homogeneous magnetoplasma longitudinal cyclotron harmonic wave propagation perpendicular to static magnetic field, noting instabilities
DC-to-sinusoidal inverter employing PWM waveform, analyzing circuit parameters effect on harmonic content
CW second harmonic He-Ne laser light second order intensity correlation function measurements
Harmonic generation and small signal mixing in thin magnetic films subjected to static and time varying fields, generating output voltage expressions
Frequency measurement extension to 5 micron region by IR laser harmonic frequency mixing in point contact diode as multiplier chain
Computer program for calculation convective heat transfer coefficients from harmonic temperature oscillations
Whistlers with harmonic bands caused by multiple stroke lightning
Nonlinear panel flutter analyses by perturbation and harmonic balance methods
Lunar Orbiter tracking data analyzed to yield thirteenth degree and order spherical harmonic approximation to lunar gravitational potential function
Comparison of Alouette-2 and OGO-5 observation of turbulence of magnetospheric electrostatic electron cyclotron harmonic waves
Viscous damping and harmonic disturbing forces in rotors with critical speed, support deflection, and support phase angle determinations
Harmonic oscillator systems applied to orbit perturbation theory with two body motion
Explicit and recursive formulas for acceleration and gravity gradient derived from spherical harmonics
Transformation formulas in solid spherical harmonics for calculating forces between two homogeneous hemispheres with examples involving coordinate translation and rotation
Transformation properties of coordinates in inverse power spherical harmonic expansions
Spherical harmonic analysis of worldwide cosmic ray variations during geomagnetic storms, using ground station and satellite data
Elastic harmonic waves propagation in composite circular elastic cylinder
Whistlers with harmonic bands caused by multiple stroke lightning, using Injun 5 VLF data