A development of the earth's gravitational potential from the sixth through the twenty-fifth zonal harmonic
Development of earth gravitational potential from sixth through twenty-fifth zonal harmonic
MOTION EQUATION↗
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Results for “harmonization”
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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Differential corrections applied to Vinti's accurate reference satellite orbit with inclusion of the third zonal harmonic
Differential corrections applied to Vinti accurate reference satellite orbit with inclusion of third zonal harmonic
VINTI THEORY↗
Perturbations of AES orbits from tesseral harmonics of gravitational potential expansion
Satellite orbit perturbations from tesseral harmonics of gravitational potential expansion
ORBIT PERTURBATION↗
Determination of second and fourth order sectorial harmonics in earth's gravity field from the motion of twelve-hour satellites
Determination of second and fourth order sectorial harmonics in earth gravity field from motion of twelve hour satellites
GRAVITATIONAL FIELD↗
The dielectric tensor near cyclotron harmonics
Dielectric tensor elements derived for study of wave dispersion near cyclotron harmonics for Alouette satellite
CYCLOTRON FREQUENCY↗
The dispersion of waves in cyclotron harmonic resonance regions with application to the Alouette
Wave dispersion in cyclotron harmonic resonance regions investigated for Alouette satellite application
ALOUETTE SATELLITE↗
Time decay for cyclotron harmonics
Time decay calculations of cyclotron harmonic signal and application to Alouette satellite
CYCLOTRON RESONANCE↗
Alouette cyclotron harmonics observations and results
Observations, results, and mathematical theory of Alouette satellite cyclotron harmonics resonances
HARMONIC OSCILLATION↗
Corrections to station coordinates and to nonzonal harmonics from Baker-Nunn observations.
Corrections to Smithsonian astrophysical observing station coordinates and nonzonal harmonics from combination of dynamical and geometrical method
BAKER-NUNN CAMERA↗
A spherical harmonic analysis of the earth's topography.
Earth topography in spherical harmonic analysis of land, ocean and ice
TOPOGRAPHY↗
Millimeter wave diodes for harmonic power generation.
Point contact electrically formed semiconductor junction diodes, discussing harmonic generation by various material combinations
MILLIMETER WAVE↗
A dynamical solution for the tesseral harmonics of the geopotential, and station coordinates using Baker-Nunn data.
Tesseral harmonics of coordinates using Baker- Nunn data and geopotential and dynamical procedures, noting iterative cycle for correction determination
ITERATIVE SOLUTION↗
Summation of series for cyclotron harmonic wave dispersion.
Summation of convergent series for cyclotron harmonic wave dispersion for numerical and analytic work
CONVERGENCE↗
The harmonics produced by a pin diode in a microwave switching application.
Second and third harmonics produced by p-i-n diode in microwave switching application
MICROWAVE SWITCHING↗
Modified long-period behavior due to tesseral harmonics.
Von Zeipel method and Hamiltonian perturbation mechanics used for orbits at resonance with tesseral harmonics of geopotential
GEOPOTENTIAL↗
The use of harmonic drives on NASA's Mars Exploration Rover
The Mars Exploration Rover (MER) mission will send two 185 kg rovers to Mars in 2003 to continue the scientific community's search for evidence of past water on Mars. These twin robotic vehicles will carry harmonic drives and their performance will be characterized at various temperatures, speeds and loads.
harmonic drive↗
A General Theory of Linear Time Invariant Adaptive Feedforward Systems with Harmonic Regressors
This papter establishes necessary and sufficent conditions for an adaptive system with a harmonic regressor to admit an exact linear time-invariant representation.
Harmonic Regressors Sinusoidal Regressors↗
Life test failure of harmonic gears in a Two-axis Gimbal for the Mars Reconnaissance Orbiter Spacecraft
This paper will present a process for increasing the stiffness of harmonic gear assemblies and recommend a maximum stiffness point that, if exceeded, compromises the reliability of the gear components for long life applications.
harmonic gears↗