SEARCH · Engineering Papers
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.
Quote a phrase for an exact phrase match. Source license links do not imply unrestricted reuse.
Gravitational potential from satellite photography and from determinations of tesseral and zonal harmonic coefficients
Wind tunnel and flight pressure measurements compared for Ram B Launch Vehicle
Manufacturing techniques, testing, and fabrication of lithium-drifted germanium particle detectors
Diffraction of a cylindrical wave by a wedge for application to antenna diffraction problems
Central field wave functions for oscillator strength computations in two-electron helium system
Mathematical formulas to determine net inductance in audio range of both hammer coil and cryogenic sealing coil
One-step methods for numerical integration of initial value problems in ordinary differential equations applied to celestial mechanics
Tracking geometry and dynamics of lunar satellite, estimating orbital elements and lunar gravitational field parameters through Earth- based range and range rate observations
Improved Donnell equations for concentrated load of circular cylindrical shell
Message estimation of sample function from continuous Gaussian random process, establishing and evaluating optimal bounds for procedure
Explore the source record for details and available documents.
Pulse autocorrelator electronic system discriminates between the dispersion effect of a disturbed laser signal and background noise by detecting multipath arrivals of Gaussian-shaped signal pulses. The autocorrelation function is time-dependent and can be determined by integrating the product of a received pulse and its delayed replicas.
On-board tracking system of two-way coherent Doppler between entry capsule and orbiting bus for determining orbit of entry capsule and estimating atmospheric parameters.
Asymptotic formulas for elastic cylindrical shells and analysis of Kirchhoff-Love theory
Numerical methods and integration for solution of restricted three-body problem
Mariner IV midcourse 50-lb thrust pressure- controlled monopropellant hydrazine propellant system, predicting impulse and velocity error as function of burn time
IR horizon sensor systems for spacecraft attitude determination, detailing field switched edge tracker