Zobrazeno 1 - 10
of 12
pro vyhledávání: '"J. H. Hett"'
Publikováno v:
Journal of Urology. 95:208-214
Autor:
R. W. King, J. H. Hett
Publikováno v:
Review of Scientific Instruments. 21:150-153
A simple frequency‐modulated pressure gauge employing a variable capacity pick‐up element has been devised to measure the oscillating pressures of burning gases. It has been used to measure pressures in pulse jet engines ranging from −5 to +60
Autor:
J. H. Hett, J. B. Gilstein
Publikováno v:
Journal of Jet Propulsion. 25:119-127
A modified two-path method was used to measure indi cated instantaneous temperatures of the exhaust and combustion chamber flames of 1500-lb-thrus t alcoholoxygen rockets. Spectral studies of the flames indicated divergence from thermal equilibrium
Publikováno v:
Journal of the SMPTE. 72:462-484
One plane mirror and two faceted mirrors were fitted to Telstar. A photoelectric telescope was mounted on a radar antenna pedestal. Appropriate recording gear was built. The 12-in. aperture Cassegrain photoelectric telescope could be pointed at the s
Autor:
J. H. Hett, L. E. Curtiss
Publikováno v:
Journal of the Optical Society of America. 51
Glass-on-glass fiber bundles have been made with a resolution of better than 20 optical lines per millimeter in a 36-in. length. Transmittance is 47% in the range 5600°–7000°. Bundles 14-in. in diameter have been incorporated in a duodenoscope, p
Publikováno v:
Journal of the SMPTE. 72:491-492
Publikováno v:
The Astronomical Journal. 68:70
Autor:
J. H. Hett, J. B. Gilstein
Publikováno v:
Journal of the Optical Society of America. 39:909
Dual paths, which are nearly coincident, are used with two photo-multipliers and a single filter to obtain on cathode-ray tubes records of the radiation from rapidly varying flames. Both temperature and emissivity are determined. Calibration is by st
Autor:
J. H. Hett
Publikováno v:
The Astronomical Journal. 72:97