An investigation of high energy radio propagation in the atmosphere

"RADC-TDR-63-410."

HARPA : a versatile three-dimensional Hamiltonian ray-tracing program for acoustic waves in the atmosphere above irregular terrain /

Mode of access: Internet.

Basic radio propagation predictions for ... three months in advance/

Description based on: Nov. 1946; title from cover.

Atlas of Fourier coefficients of diurnal variation of foF2.

Bibliography: p. 23.

Measurements of electromagnetic fields in the close proximity of CB antennas /

Mode of access: Internet.

Absolute photometry of the light of the night sky ; the zenith intensity of Haleakala (latitude N 20.7 degrees) and at Fritz Peak (latitude N 39.9 degrees) /

Includes bibliography.

Statistical-physical models of man-made and natural radio noise : part IV, Determination of the first-order parameters of class A and B interference /

Issued Sept. 1978.

Journal of research of the National Bureau of Standards.

Vols. 13-62 consist of Research papers no. RP691-RP2961.

The measurement of soil moisture and density by neutron and gamma-ray scattering,

Cover title.

Scattering coefficients for the backscattering of electromagnetic waves from perfectly conducting spheres; research information series.

Mode of access: Internet.

Back scattering of a plane electromagnetic wave from an infinite cylinder of plasma with small axial gradients and arbitrary radial gradients of electron density : normal incidence /

"Prepared under contract no. NOrd 18053."

Plankton organisms in the deep scattering layer /

Mode of access: Internet.

Spin dependence of slow neutron scattering by deuterons /

Work performed at the Argonne National Laboratory.

Small-angle scattering of neutrons in iron /

Work performed at the Argonne National Laboratory.

SHEAL II, NASA's Shuttle High-Energy Astrophysics Laboratory : broad band X-ray telescope/diffuse X-ray spectrometer /

Title from cover.