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Silicon Nitride As A High-Temperature Radome Material

Description: LRL has the responsibility of demonstrating the feasibility of a reactor for use as a power plant for a low-altitude, high-Mach-number missile. This reactor is literally a very high power air heater which must work at temperatures in excess of 2000' F. The reactor is exposed to high loads so one of the primary problems is providing high temperature structure. Considerable effort has been devoted to developing ceramic structural elements. One of the materials considered for this purpose is silic… more
Date: May 19, 1964
Creator: Wells, William M.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Uniformity Of Output From A Low-Amplitude Plane-Wave Nitroguanidine Explosive System

Description: In the Plowshare Program many calculations of the effects of underground explosions are made. Usually these are done on high-speed digital computers. The effects are calculated for ranges up to hundreds of meters from the explosion; at these ranges pressures become less than one kilobar. In order to make these calculations, information about the properties of the materials involved is required. Benedick [13] has developed a low-pressure, plane-wave lens using nitroguanidine. It was decided to u… more
Date: May 12, 1964
Creator: Hearst, Joseph R. & Geesaman, L. B.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Ths Significance Of Beryllium Surface Contamination To Health

Description: Surface contamination with beryllium becomes a hazard to health only when the potential exists for resuspension in air in enough quantity and for enough time to exceed the prescribed standards for airborne exposures. There are several factors governing the rate and nature of resuspension phenomena. These factors include: the quantity and properties of the particular beryllium compound causing the contamination, the nature of the surface, activities in the vicinity, ventilation in the area which… more
Date: May 27, 1964
Creator: Cohen, Jerry J. & Kusian, Ross N.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Cratering Experience With Chemical And Nuclear Explosives

Description: Over the past 13 years a considerable body of data on explosive cratering has been developed for application to nuclear excavation projects. These data were obtained from some ten cratering programs using chemical explosives (TNT or nitromethane) and seven nuclear cratering detonations. The types of media studied have ranged from marine muck to hard, dry basalt, although most effort has been devoted to craters in NTS desert alluvium and basalt. Considerable effort has also been devoted to the s… more
Date: May 14, 1964
Creator: Nordyke, Milo D.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

An 8-Matrix Theory of the Vertex p - NN Based on the Strip Approximation

Description: The present study was motivated by an attempt to understand low energy [formula] scattering within the framework of the bootstrap principle and the un-Reggeized version of the strip approximation. This work attempts to generate low energy [formula] scattering in the p(1,1) and p(3,3) states assuming the potential operating in these states is generated by the exchange of low mass meson states in the crossed t-channel and low mass baryon states in the crossed u channel. In particular, the p-meson… more
Date: May 1964
Creator: Sarkissian, M. Der
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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