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The Isothermal Transformation of Metastable Beta Uranium Single Crystals (open access)

The Isothermal Transformation of Metastable Beta Uranium Single Crystals

Abstract: "The transformation of metastable beta uranium crystals was found to proceed by a martensitic reaction at room temperature. The features of the transformation of particular interest were that individual uranium martensite plates formed isothermally and grew at a slow rate isothermally."
Date: November 19, 1952
Creator: Holden, A. N.
System: The UNT Digital Library
Coulometric Determination of Phosphate (open access)

Coulometric Determination of Phosphate

The conventional volumetric micro-determination of phosphate depends upon the precipitation of phosphomolybdate, filtration and washing of the precipitate, and titration with standard base. The method is slow and tedious, subject to many interferences, and is not applicable to samples containing less than 1-2 mg of phosphate. Other weak acid anions, such as carbonate or acetate, interfere in the method. Strong acid anions, such as nitrate, sulfate, and chloride do not interfere.
Date: November 19, 1953
Creator: Carson, W. N., Jr. & Gile, H. S.
System: The UNT Digital Library
On the Dynamic Design of Non-Regenerative Transistor Circuits : Report No. 94 (open access)

On the Dynamic Design of Non-Regenerative Transistor Circuits : Report No. 94

In this technical report, firstly, the transfer function of a non-regenerative, base-driven transistor circuit is derived by applying the linear equivalent circuit method. The results are experimentally verified. Secondly, the idea of the inverse-gain-bandwidth is introduced as the criterion of the dynamic design. Thirdly, the stability factor is explained. Finally, it is shown that a system constructed by various types of transistor switching circuits is reduced to a long train of unit chains formed by delay units and wave-shapers, and the maximum allowable number of delay units in a unit chain is discussed. The results given here are consistent with the design procedures for transistor switching circuits established in the Digital Computer Laboratory, i.e., the emitter-follower logical circuits associated with restorers and flip flops.
Date: November 19, 1959
Creator: Kunihiro, Toshiro
System: The UNT Digital Library