Curves of Input Impedance Change Due to Ground for Dipole Antennas (open access)

Curves of Input Impedance Change Due to Ground for Dipole Antennas

Report presenting graphs of the change in input impedance of electrically short dipole antennas in the presence of an isotropic and homogeneous ground which considers four types of antennas: horizontal and vertical, electric and magnetic dipoles. Curves of the change in both the input resistance and reactance are shown for a wide range of values of the frequency, antenna height above the ground, and electromagnetic ground constants.
Date: January 31, 1964
Creator: Vogler, L. E. & Noble, J. L.
System: The UNT Digital Library
Durability of Stucco and Plaster Construction: Progress Report Containing Results of Investigations up to April, 1916 (open access)

Durability of Stucco and Plaster Construction: Progress Report Containing Results of Investigations up to April, 1916

Technical paper issued by the Bureau of Standards over tests conducted on the durability of stucco construction. Construction methods are discussed. The test results are presented and discussed as well. This paper includes tables, illustrations, and photographs.
Date: January 31, 1917
Creator: Wig, R. J.; Pearson, J. C. & Emley, W. E.
System: The UNT Digital Library
Saturated Liquid Densities of Oxygen, Nitrogen, Argon, and Parahydrogen (open access)

Saturated Liquid Densities of Oxygen, Nitrogen, Argon, and Parahydrogen

Integrated tables of pressure, volume, and temperature for the saturated liquid, from the triple point to the critical point, for oxygen, nitrogen, argon, and parahydrogen.
Date: January 31, 1968
Creator: Roder, H. M.; McCarty, R. D. & Johnson, V. J.
System: The UNT Digital Library