Evaluation of materials by non-destructive means
Nondestructive test methods for detecting and measuring stress corrosion and residual stress
MATERIAL TESTING↗
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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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Investigation of neutron transmission through shielding by means of unidirectional sources /the B-2 installation/
Unidirectional radiation sources for determining neutron distribution through nuclear reactor shielding
FAST REACTOR↗
On the possibility of refining by means of optical location some astronomical parameters of the system - Earth-Moon
Optical location of moon in Earth-Moon system using artificial light reflector, on lunar surface
REFLECTOR↗
A study of rotational relaxation in a low- density hypersonic free jet by means of impact-pressure measurements
Rotational relaxation effect in low density hypersonic free jet studied using impact pressure measurements
RELAXATION METHOD↗
The study of short-period variations and microvariations in cosmic-ray intensity by means of single scintillation counters
Scintillation counters with photomultiplier for observing microvariation in cosmic ray intensity
SCINTILLATION COUNTER↗
Automatic design of optical systems by means of an IBM digital computer employing the IBJOB monitor
Digital computer program using geometrical optical techniques for automatic design of optical systems
LENS DESIGN↗
The calculation of upper and lower bounds of energy eigenvalues in perturbation theory by means of partitioning techniques.
Quantum mechanical perturbation theory calculation of upper and lower bounds of energy eigenvalues using partitioning methods
PERTURBATION THEORY↗
Detection of hydrogen in air by means of alkali ion current from hot palladium.
Surface ionization detector of hydrogen in presence of air at one atm
HYDROGEN↗
Transmission probability determination with directed mass motion and with mean free path considerations.
Transmission probability describing free molecular flow through vacuum systems obtained via Monte Carlo program
MONTE CARLO METHOD↗
Latitudinal and seasonal variations in atmospheric densities obtained during low solar activity by means of the inflatable air density satellites.
Latitudinal and seasonal variations in atmospheric densities during low solar activity obtained by inflatable air density satellites
ATMOSPHERIC DENSITY↗
Flow visualization of a secondary jet by means of lampblack injection techniques.
Fluid flow processes for secondary sonic jet injection into Mach 6 free stream, noting upstream flow into separated flow regions
FLOW VISUALIZATION↗
Extraterrestrial life detection by means of isotopic oxygen exchange.
Extraterrestrial life detection based on catalysis of oxygen exchange between labeled oxyanions and water, noting equipment
OXYGEN 18↗
Study of the ionosphere by means of rocket measurements of the VLF field radiated from a ground source. III
Ionosphere collision frequencies and densities studied by rocket measurements of magnetic field of VLF wave radiated from ground
ROCKET MEASUREMENT↗
Observations of the polar ionosphere in the altitude range 2000 to 3000 km by means of satellite borne electron traps.
Polar ionosphere by satellite-borne electron traps, measuring electron density, temperature, quasi-energetic electron flux, etc
ELECTRON TEMPERATURE↗
Means for improving apparent television resolution.
TV system resolution improvement without bandwidth increase, discussing accuracy of random alphabetic characters
IMAGERY↗
On the solution of error covariance difference equations by means of canonical decomposition and z transform.
Canonical decomposition of nonlinear error covariance difference equation derived for discrete estimation problems
NONLINEAR EQUATION↗
Measurements of the ionized flow in a shock tunnel by means of resonant cavities and electrostatic probes
Ionized flow measurements in hypersonic shock tunnel using resonant cavities and electrostatic probes
Bloom, M. H.↗
Analysis of structurally orthotropic shells by means of the compliance method Annual progress report, period ending 30 Nov. 1967
Compliance analysis of structurally orthotropic shells
Kozik, T. J.↗