Zobrazeno 1 - 10
of 15
pro vyhledávání: '"J. R. Hearst"'
Publikováno v:
Journal of Geophysical Research: Solid Earth. 96:21933-21948
As the barometer falls, gases are drawn upward out of the permeable Earth into the atmosphere. Conversely, a rising barometer pushes air downward. In a homogeneous permeable medium, these cyclical gas motions are piston-like and nearly reversible, so
Vertical gas motions induced by barometric pressure variations can carry radioactive gases out of the rubblized region produced by an underground nuclear explosion, through overburden rock, into the atmosphere. To better quantify transit time and amo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5458ed26524a85f8d7cecdd6ffd71405
https://doi.org/10.2172/225021
https://doi.org/10.2172/225021
Autor:
J. R. Hearst, R. C. Carlson
Publikováno v:
Nuclear Applications and Technology. 8:276-282
For engineering applications of underground nuclear explosions, it is necessary to know the properties of the material in which the explosion takes place. Many organizations provide measurements of the properties of interest, but their techniques are
Publikováno v:
Physical Review. 119:1667-1670
This experiment was performed in order to investigate the mechanism of the zirconium (n,p) and (n,np) reaction at 14 Mev. The energy distribution of particles interpreted as protons is found to peak at about 2 Mev. The cross section for charged parti
Publikováno v:
Journal of Applied Physics. 35:2145-2150
The piezoelectric sensitivities of 20 z‐cut tourmaline crystals have been compared up to 7 kbar. Deviations from a mean of up to 15% have been found. The mean was 1.69×10−8 C/cm2·kbar for uniaxial and 2.39×10−8 C/cm2·kbar for triaxial tests
Publikováno v:
Journal of Applied Physics. 36:3440-3444
The piezoelectric sensitivity of Z‐cut tourmaline has been measured for plane shocks with amplitudes up to 21 kbar. There is no evidence of hysteresis or significant effects due to mounting. Two straight lines provide the best fit to the data.
Publikováno v:
GEOPHYSICS. 33:78-87
Methods have been developed to measure the source and arrival times of an explosion‐induced acoustic wave to within 0.1 ms. These methods have been used to measure acoustic velocity over distances of 10 to 150 m with high accuracy. The methods are