Static and dynamic penetration tests of soil
Impacting soil measuring device for predicting resistance to dynamic, repetitive loading
DYNAMIC LOAD↗
SEARCH · Engineering Papers
Results for “PENETRATION”
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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An investigation of particle penetration into the magnetosphere
Charged particle trajectory into magnetosphere
MAGNETOSPHERE↗
Determination of footpad penetration depth from Surveyor spacecraft shadows
Optical triangulation method for determining lunar surface elevation relative to Surveyor spacecraft
Spencer, R. L.↗
Penetration of solar protons to four earth radii in the equatorial plane
Explorer 26 observations of solar protons at altitudes of four earth radii inside magnetosphere near geomagnetic equator
Fillius, R. W.↗
Penetration of electrons and associated bremsstrahlung through aluminum targets
This paper contains a brief description of Monte Carlo programs designed to calculate the transport of fast electrons and associated bremsstrahlung through extended media. Two applications are discussed: (1) transmission of electrons through plane-parallel targets, and (2) emergence of secondary bremsstrahlung from such targets. It is shown that the predicted results are in reasonably good agreement with recent experiments for electron beams with energies up to 8 MeV incident normally on aluminum targets. Extensive new calculated data for transmission and thick-target bremsstrahlung production are presented for aluminum targets exposed to an isotropic electron flux.
M. J. Berger↗
A study of charge storage in silicon oxide resulting from non-penetrating electron irradiation
Charge storage in silicon dioxide resulting from electron irradiation
Hauser, J. R.↗
Review of diffusion in polymer penetrant systems
Review of solubility, permeability, and diffusivity in polymer diluent systems
Smith, T. G.↗
Development of detection techniques for the penetration of bacterial cells through isolation suit materials.
Bio-Isolator Suit for aseptic assembly of spacecraft in sterile chamber
Bryce, A.↗
Leads integral with the internal interconnection that penetrate the molded wall of a package
Multiplicity of external ribbon leads makes possible connections to a sealed or encapsulated microassembly. The leads are integral with the internal connections on a single part that can be fabricated economically by fine-detail electroplating.
Marley, J.↗
Characterization of silicon dioxide for a capacitance-type meteoroid penetration detector
Fabrication and testing of large area metal oxide silicon capacitors for micrometeoroid counting in space
Canady, K. S.↗
Attached flow gust penetration loads
Attached flow gust loads of slender bodies moving supersonic speeds
Scholnick, I. M.↗
Penetrating radiations
High energy electromagnetic radiation and energetic particles from sun, galaxies, and nuclear explosions in spacecraft environment
Gaines, E. E.↗
A procedure for assessing aircraft turbulence- penetration performance
Subsonic transport aircraft performance assessment during atmospheric turbulence
Loomis, J. P.↗
Evaluation of new penetrating sporicide potentially useful in spacecraft sterilization Progress report
Sporicide as additive to spacecraft potting compounds or as surface agent for spacecraft sterilization
Aldridge, C.↗
Methyl alcohol used as penetrant inspection medium for porous materials
Porous material thoroughly wetted with alcohol shows persistent wet line or area at locations of cracks or porosity. Inspection is qualitative and repeatable, but is used quantitatively with select samples to grade density variations in graphite blocks. Photography is employed to achieve permanent record of results.
Hendron, J. A.↗
Penetrating radiation system for detecting the amount of liquid in a tank Patent
Radiation source and detection system for measuring amount of liquid inside tanks independently of liquid configuration
Kaminskas, R. A.↗
Penetration and spreading of transverse jets of hydrogen in a Mach 2.72 airstream
Schlieren photography of flow distribution for transverse hydrogen jets from flat plate into Mach 2.72 airstream
Billig, F. S.↗
Electron and bremsstrahlung penetration and dose calculation
Calculation of electron and bremsstrahlung dose deposition with energy deposition, transmission, and reflection coefficients for electrons
Burrell, M. O.↗