UNT Libraries Government Documents Department - 228 Matching Results

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New Type Automatic Gas Alarm

Description: In producing safe and healthful working conditions in chemical plants the authors study an automatic signaling device which becomes activated when concentrations of ethyl chloride, bromine, and iodine vapors in the air increase above permissible limits.
Date: unknown
Creator: Romanicv, P. G.
Item Type: Refine your search to only Report
open access

Theory of Superfluidity and Critical Velocity in Helium II

Description: The theory of superfluidity of helium II doesn't cover one important phenomenon--the existence of a critical velocity for which the theory is not able to explain quantitatively. This paper looks to conduct experiments on the need for substantial alterations of the helium II theory.
Date: unknown
Creator: Ginzburg, V. L. (Vitaliĭ Lazarevich), 1916-2009
Item Type: Refine your search to only Report
open access

German Patent 392831

Description: The present invention has as its object the pressure lubrication of a multiple-collar thrust bearing of the latter type which, owing to its special design, is especially suitable for high speed stem and gas turbines, compressors, and pumps.
Date: unknown
Creator: Name removed by request of patentee
Item Type: Refine your search to only Report
open access

The Raman Spectra and Structure of Perrhenium Acid and Perrhenate Ion

Description: The Raman spectrum shows that sulphate, selenate and perchloride ions have a tetrahedral structure in solution. Tellurium, molybdenum and tungsten should be surrounded by six oxygen atoms and should therefore form a octahedral structure. The author investigates the Raman-spectra of several perrhenates and of perrhenium acid.
Date: unknown
Creator: Fonteyne, R. & Van Hespen, C.
Item Type: Refine your search to only Report
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