Physical Sciences and Mathematics Commons^™

Thermodynamic And Electrochemical Studies Of Niobium In Molten Fluorides And Chloroaluminates, Gann Ting

Doctoral Dissertations

The oxide chemistry of niobium(V) has been studied in molten LiF-BeF₂ mixtures. The stoichiometry of an oxygen-containing niobium(V) species (NbO₂F) has been established in molten Li₂BeF₄ from the heterogeneous equilibrations of NiNb₂o₆ and NiO with the melt containing NiF₂, the equilibrium quotient for the reaction was determined. The equilibrium quotient for the heterogeneous reaction of Nb₂O₅ and BeO with molten LiF-BeF₂ mixtures (67-33 and 52-48 mole %) was also determined, and the effect of the melt composition on the solubility of Nb₂O_{5 …}

Initial Feasible Solutions Of Three Dimensional Transportation Problems, Mamoru Aiga

Masters Theses

The purpose of this paper is to investigate methods to obtain initial feasible solutions of three dimensional transportation problems. Schell's procedure was tested on various randomly generated problems, and it was determined that this algorithm did not always yield an initial feasible solution. Thus a modified Schell procedure was developed.

Computer programs were written to compare the modified Schell procedure with Phase I of Simplex method. It was concluded, from cases tested, that the modified Schell procedure requires much less computing time and generally gives a feasible solution closer to the optimum solution.

Geology Of The East Fork Mine And Vicinity, Sevier County, Tennessee, John Charles Brower

Masters Theses

The East Fork mine consists of a series of open cuts in steeply dipping low-grade metasediments of the Late Precambrian (?) Ocoee Series. In general the metasedimentary units strike northeast and dip steeply to the southeast. However, interpretation of stratigraphy and structure is complicated by intensive local folding and faulting. Two large thrust faults occur in the southern part of the study area, and two or more thrust sheets comprise the bulk of Dixon Mountain in the eastern part of the study area. At the southern boundary of the study area, the Dunn Creek fault thrusts rocks of the Snowbird …