This paper describes the echo from a beamforming interferometric altimeter from a uniformly scattering surface inclined at an angle to a sphere, underlain by a uniformly scattering volume.
The pathways of many organic chemical reactions involve pi- electron systems which undergo drastic deviations from planarity and the same situation prevails in the formation of the carbon spheriods
The characteristics of 3 basic electrostatic lens types were measured by the method previously described [Abstr. 1942B01261, 1943B00836]. The types tested were cyl.
T h e microphonic response uf different t y p e s of vacuum tulx*s to t h e s a m e mechanical a g i t a t i o n c o v e n a 70 db range of levels.
Various ways of determining the acoustic impedance and the absorption coefficient of porous materials from measurements on the standing waves in tubes are discussed.
The adaptation of a bridge circuit due to M.
HE successful transmission of broadband television and pulse signals over any communication circuit depends upon the preservation of the complex wave shapes of the original transmitted signals.
The measurement of power spectra is a problem of steadily increasing importance which appears to some to be primarily a problem in statistical estimation.
The measurement of power spectra is a problem of steadily increasing importance which appears to some to be primarily a problem in statistical estimation.
T HE theory of the general behavior of crystals in oscillator circuits has been described by I. E. Fair 1 .
