The relationship between optical distortion and binocular depth perception
Relationship between binocular depth perception and optical distortion in Apollo pressure suit helmets and visors
Loper, L. R.↗
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Results for “depth”
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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Density-depth model for the lunar outermost layer.
Mathematical density-depth model proposed for lunar outermost layer compared to Matveev model, noting Surveyor estimates
Jones, B. P.↗
Cosmic-ray heavy-nucleus enders at various atmospheric depths.
Cosmic ray heavy nucleus enders flux by nuclear emulsions for balloon flights at various atmospheric depths
Fukui, K.↗
Depths of Surveyor footpad penetrations at first impact - Their relation to the bearing strength of the lunar soil
Lunar surface bearing strength from depth of penetration measurements of first impact by Surveyor spacecraft
Choate, R.↗
Crossed beam measurements of differential elastic scattering of Ar by N sub 2 - Rainbow effect and intermolecular potential well depth
Differential elastic scattering cross section of Ar nozzle beam in nitrogen considered with rainbow effect in determining intermolecular potential well depth
Bernstein, R. B.↗
Determination of the well depth for weak intermolecular potentials
Well depth determination for weak intermolecular potentials based on dimerization enthalpy measurement of rare gas atoms by mass spectrometry
Mason, E. A.↗
A novel nondestructive, noncontacting method of measuring the depth of thin slits and cracks in metals
Nondestructive noncontacting microwave depth measurement of thin slits and cracks in metal surfaces
Feinstein, L.↗
Correlation of the depth effect on film-boiling heat transfer in liquid helium. II
Liquid He II, determining correlation of depth effect on film boiling heat transfer with vapor film geometry from motion pictures
Irey, R. K.↗
Depth determination by measuring wave surface effects
Aerial photography of water wave refraction for depth determination
Polcyn, F. C.↗
Water-depth measurement by wave refraction and multispectral techniques
Shallow ocean depth measurements by aerial photographs of wave refraction and wavelength changes and by multispectral scanning of wave reflection
Brown, W. L.↗
Measurement of the surface inductance and penetration depth of superconducting aluminum
Pure superconducting Al wire surface inductance measurement as function of temperature, noting penetration depth value
Faraci, G.↗
Determination of origin of small lunar and terrestrial craters by depth diameter ratio
Small lunar and terrestrial craters, determining impact or volcanic origin by depth-diameter ratio
Smith, E. I.↗
Depth variation of cosmogenic nuclides in a lunar surface rock and lunar soil
Depth profiles of cosmogenic radionuclides in lunar rocks and soil samples from Apollo 11 and 12 flights, considering solar particle flux and spectra
Arnold, J. R.↗
Tritium and argon radioactivities and their depth variations in Apollo 12 samples
Tritium and argon radioactivities and depth variations in Apollo 12 rocks, discussing solar flare and cosmic ray exposure ages
Damico, J.↗
Improved measurement of depth perception
Electromechanical system for Howard-Dolman device was developed. System is used for human depth perception measurements without tactual stimuli.
Fitch, R. C.↗
Primary and secondary particle contributions to the depth dose distribution in a phantom shielded from solar flare and Van Allen protons
Calculations have been made using the nucleon-meson transport code NMTC to estimate the absorbed dose and dose equivalent distributions in astronauts inside space vehicles bombarded by solar flare and Van Allen protons. A spherical shell shield of specific radius and thickness with a 30-cm-diam. tissue ball at the geometric center was used to simulate the spacecraft-astronaut configuration. The absorbed dose and the dose equivalent from primary protons, secondary protons, heavy nuclei, charged pions, muons, photons, and positrons and electrons are given as a function of depth in the tissue phantom. Results are given for solar flare protons with a characteristic rigidity of 100 MV and for Van Allen protons in a 240-nautical-mile circular orbit at 30 degree inclination angle incident on both 20-g/sq cm-thick aluminum and polyethylene spherical shell shields.
Santoro, R. T.↗
Summary of moderate depth lunar drill development program from its conception to 1 July 1972
The results are summarized of a program aimed at the development of a lunar drill capable of taking lunar surface cores to depths of at least 100 feet. The technologies employed in the program are described along with the accomplishments and problems encountered. Recommendations are included for future concept improvements and developments.
Source record↗
Microwave properties of geological materials: Studies of penetration depth and moisture effects
Summarized are the results of two of a series of controlled experiments performed during the summer of 1970. The first series of experiments to determine penetration depth showed the value of having a modeled response and data reduced in real time for examination in the field. The results suggest a radiometric method for measuring the microwave properties of materials in bulk and are applicable to studies of sea ice and other naturally layered media. The sensitivity of the microwave emission to changes in moisture content has inspired a number of airborne and ground based investigations. Although the effect is dominent under certain conditions, the complicating factors of soil type, roughness, vegetation, etc. seem to govern the conclusions regarding its application at this time.
Blinn, J. C., III↗