Primary and secondary-proton dose rates in spheres and slabs of tissue
Primary and secondary proton dose rates in tissue spheres and slabs
RADIATION DOSE↗
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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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The motion of ascending and descending spheres
Measurements of self-induced motions of spheres ascending and descending in deep water tank
Mac Cready, P. B., Jr.↗
Laminar free convection from a sphere.
Temperature and velocity profiles for laminar free convective heat transfer from sphere
SURFACE TEMPERATURE↗
Sphere drag in flows of almost-free molecules.
Kinetic theory of sphere drag in transition flows based on Boltzmann equation for Maxwellian molecules
KINETIC THEORY↗
Application of sulfur coatings to integrating spheres.
Hand pressing and spray application of sulfur coatings to IR integrating spheres
SURFACE PROPERTY↗
Helical motion of a sphere in the presence of a magnetic field.
Oscillatory motion of sphere in incompressible conducting fluid in presence of magnetic field changes into helical motion
MAGNETIC EFFECT↗
Electric field generated by a rotating magnetized sphere.
Electric field generated by rotating magnetized sphere causes surrounding plasma rotation
ATMOSPHERIC ELECTRIC FIELD↗
Force on a superconduting sphere in a magnetic field - The general case
Calculation of force acting on superconducting sphere in magnetic field
POTENTIAL GRADIENT↗
Monte Carlo interpretation of sphere transmission experiments for average capture cross sections at 24 keV
Monte Carlo analysis of sphere transmission experiments for average capture cross sections from slow neutron resonance spectroscopy data
NEUTRON CROSS SECTION↗
Computer study to determine the effect of balloon footprint and optical characteristics on material temperatures of a sphere on the lunar surface for high-noon condition
Computer study to determine effect of balloon footprint and optical characteristics on material temperatures of sphere on lunar surface for high noon condition
TEMPERATURE DISTRIBUTION↗
Full scale ground tests of Echo II prototype spheres.
Full scale ground inflation tests to evaluate structural and RF backscatter characteristics of Echo II prototype spheres as function of their internal pressures
GROUND TEST↗
Gravity anomalies and convection currents. I - A sphere and cylinder sinking beneath the surface of a viscous fluid.
Gravity anomalies and convection currents, examining sphere and cylinder sinking beneath surface of viscous fluid
CONVECTION CURRENT↗
Plasma sheath and screening around a stationary charged sphere and a rapidly moving charged body.
Potential and charge density distributions derived for stationary charged sphere and charged body moving through plasma
IONIZATION POTENTIAL↗
Rigid disks and spheres at high densities - Bounds on the partition function.
Upper and lower bounds on partition functions for finite systems of rigid disks and spheres for high density limit
FACE CENTERED CUBIC /FCC/ CRYSTAL↗
An integrating-sphere reflectometer for the determination of absolute hemispherical spectral reflectance.
Integrating sphere reflectometer for measuring absolute hemispherical spectral reflectance of surfaces
REFLECTOMETER↗
Radiation flux from a slab or sphere.
Green formula and moment functions, predicting rate of radiative energy loss from boundaries of absorbing-emitting slab or sphere
GREEN FUNCTION↗
Momentum Transfer and Cratering Phenomena Associated With the Impact of Aluminum Spheres Into Thick Aluminum Targets at Velocities to 24,000 Feet Per Second
Spheres of 2017-T4 aluminum with diameters of, 1/16, 1/8, and ½ inch were launched into semi-infinite targets of 2024-T4 and 1100-0 aluminum. The momentum transfer during impact was measured by means of a simple ballistic pendulum to which the target was attached. The ratio of target momentum to projectile momentum increased with increasing projectile velocity and with projectile diameter. Mass loss due to cratering, penetration, and crater diameter were also obtained for these experiments. It was noted that the variation of these parameters was also a function of the projectile diameter. No conclusive evidence was uncovered to explain this apparent scale effect. However, close examination of the various craters suggests that the cratering process is, in fact, different for the different size projectiles. The cause for this difference has yet to be resolved.
MOMENTUM TRANSFER↗