Physical Sciences and Mathematics Commons^™

Principles Of Control Theory As Applied To A Thermostat, Joseph Peter Stidham

Master's Theses

The recent development of solid state electronics has opened new possibilities in instrumentation design. One development has been the availability of compact, low cost, high gain, D. C. amplifiers which can be used in the design and construction of sensitive laboratory instruments (11). Using these amplifiers a thermostat capable of precise control can be constructed and its performance compared with the performance expected by an analysis of the closed loop control equations.

A Correlation Of The Idealized Heat Of Vaporization To Molecular Weight, Harold Earl Bennett

Master's Theses

Using the Clausius-Clapeyron equation as a base, many investigators have tried to develop variations to better describe both ideal and non-ideal systems. The literature is abundant with correlations of vapor pressure to temperature and associated correlations of latent heats of vaporization to molecular characteristics; often molecular weight or carbon number.

Chelation Of Two Polyhydroxyamines With Copper (Ii) Ion, David H. Powell

Master's Theses

Two polyamines, 2,8-bishydroxymethyl-2,8-dimethyl- 3, 7-diaza-1,5,9-nonanetriol and 2,8-bishydroxymethyl-2,8- dimethyl-3,7-diaza-l,9-nonanediol, were prepared and the coordination of these compounds with Cu (II) ions in solution was investigated. Spectrophotometric study of the solutions of these compounds gives evidence of the formation of two complexes, containing one mole of ligand per metal ion and two moles of ligand per metal ion, respectively. The two stability constants for these complexes and the basicity constants for these ligands were calculated from potentiometric titrations at 30°C. A compadson of the stabj lity constants and basici ty cons tan ts for the two compounds was made to determine the …

A Spectrophotometric Study Of The Reaction Between Benzoyl Peroxide And N, N-Dimethyl-P-Phenylenediamine, Bertha Cosby King

Master's Theses

A special need for methods to determine low concentrations of organic peroxides originated because of their hazardous and harmful effects, Even the small amounts of organic peroxide formed by autoxidation in ethers exposed to air make the ethers highly explosive and unsuitable for use as anesthesia or laboratory solvents. The formation of organic peroxides in fats and oils causes rancidity. They have been named as pollutants, and some of them are known to have detrimental physiological effects.

The purpose of this research was to improve this method of analysis and to determine better conditions for the measurement of color by …