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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
251

An investigation of the properties and reactions of perchloryl fluoride including a new reaction.

Chisum, O. Clarke January 1959 (has links)
No description available.
252

Resolution of complex decay curves by analog computer techniques.

Peckworth, Dana January 1959 (has links)
No description available.
253

Solubility of nylon in methanol-water solutions.

Tuszynski, Raymond S. January 1959 (has links)
No description available.
254

Tables of thermodynamic properties and calculations for determining equilibrium composition and flame temperature.

Belk, Reese G. January 1959 (has links)
No description available.
255

Time-temperature relations for ignition of explosives.

Carter, Jack L. January 1959 (has links)
No description available.
256

The effect of explosive mixtures upon impact sensitivity.

Sinclair, James Edward January 1957 (has links)
No description available.
257

Solubility of Nitrogen in Liquid Iron Alloys

Gomersall, David William 09 1900 (has links)
<p> An investigation has been made concerning the solubility of nitrogen in pure liquid iron, iron-carbon and ironaluminium alloys. A technique involving levitation melting and a rapid quench device has been used. The experimental data obtained have been expressed in terms of the interaction coefficients proposed by Wagner and Lupis and Elliott. The data have also been used to test the formalisms developed recently by Darken and Chipman. A simple model for liquid metal solutions in which the solutes may be considered "interstitial" has been developed and tested using the results of the present study and published data for a number of ternary solutions </p> / Thesis / Doctor of Philosophy (PhD)
258

Oxygen Solubility in Liquid Iron and Iron-Chromium Alloys

Larché, Francis C. L. 08 1900 (has links)
<p> Levitation melting was used to measure the equilibrium between H2-H2o or CO-C02 gas mixtures and pure Fe or Fe-Cr alloys over the temperature range 1550 - 1750°C. The effects of thermal diffusion on the two types of gases were investigated. First and second order interaction parameters were employed to describe the interaction between oxygen and chromium {up to 25 wt. pct. of Cr.). </p> / Thesis / Master of Science (MSc)
259

A study on the relative runability of grid metal alloys

Reese, Fred O. January 1936 (has links)
This investigation was made in an attempt to compare the casting properties of various commercially used grid-metal alloys and to study other alloys that promise to be of value in the battery manufacturing industry. In previous publications (1) it has been shown that zinc has a very market effect in raising the surface tension of type metals when it is present even in small amounts. A more recent publication (2) has shown that zinc in small amounts (which increases (1) the surface tension of type metals) and sodium in small amounts (which decreases the surface tension of type metals) does not impair the ability of type metal to flow in molds all parts of which are above capillary in size. As neither zinc nor sodium have any appreciable effect on runnability it is concluded that surface tension is a negligible factor in determining the runnability of an alloy in molds which are in all parts of above capillary size. Since the molds used in casting grid plates are above capillary size in all parts, and from evidence cited, it is concluded that surface tension does not enter this problem, and the procedure as outlined in the following section was chosen as the most logical for this study. (1) The Surface Tension of Type-Metal Alloys, by H.V. White, Bulletin of Virginia Polytechnic Institute, January 1993, Engineering Experiment Station Serious No. 13. The Effect of Impurities on the Surface Tension o Type-Metal Alloys, Bulletin of Virginia Polytechnic Institute, by H.V. White, June, 1934, Engineering Station Series No. 17. 2) "The Effect of Zinc and Sodium on the Relative Runnability of Type-Metal Alloys," by H.V. White and F.O. Reese: Bulletin of Virginia Polytechnic Institute, September, 1935, Engineering Experiment Station Series No. 21. / M.S.
260

An attempt to find a suitable source of sodium light to be used with the polariscope at the Virginia Polytechnic Institute

Goode, W. B. January 1920 (has links)
Master of Science

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