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Cosmic Rays From Large Supernovae

Description: The theory of the hydrodynamic origin of cosmic rays proposed by Johnson and the author (Colgate) has developed to the point where the final evolution of a star to the supernova instability and subsequent explosion can be described with sufficient detail such that cosmic rays with appropriate intensity, composition, and spectrum to account for observations are a logical and necessary result. In the first publication it was pointed out that nuclei in the surface of the star may acquire many orde… more
Date: October 21, 1963
Creator: Colgate, S. A. & White, R. H.
Partner: UNT Libraries Government Documents Department
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A Dynamic Method For Mercury Vapor Detector Calibration

Description: The calibration of mercury vapor detectors has always posed a problem because of the difficulty of generating known concentrations of mercury vapor in air. The purpose of this study was to design an apparatus that would generate and chemically measure known concentrations of mercury vapor in air for calibration work.
Date: February 21, 1964
Creator: Nelson, Gary O.; Van Sandt, Walter & Barry, Patrick
Partner: UNT Libraries Government Documents Department
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A Sensitive Differential Pressure System For Measuring Cryogenic Liquid Depths

Description: A system for measuring depths of cryogenic liquids is described. The indicating device is a modified differential pressure gage. The level sensing probes are of various types, either permanent or removable. The heat leak to cryogenic liquids may be made negligibly small.
Date: April 21, 1961
Creator: Pope, William L. & McLaughlin, Edwin F.
Partner: UNT Libraries Government Documents Department
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