Centrifugal separation of molten steel and glass mixtures

A lot of mixed vitrified waste exists at DOE sites, which contain valuable metal having great potential for being reused in industry. Of these useful metals, steel constitutes more than 45% of the volume. Using the differential centrifugal separation technology, steel is separated by using remote melting of the mixed waste. The high costs involved are directly proportional to the time involved in separation of the steel from the mixed waste. This is determined by using similitude principles. Having obtained a solidified steel ingot by melting, it is essential to determine the decontaminated portions of the ingot that can be released to industry. Two parameters representing measures of separation are proposed—the Centrifugal Fluid Separation Number and the Thermal Separation Number. Regression correlations are determined to express the estimated time of separation. Experimental analysis of solidified ingots has shown that when the Thermal Separation Number is less than 1700 the steel contains little or no trace of glass. This result can be used to recycle steel back to industry. ^

Reaganomics and its effects on pricing and participation in the regular paying sector of the National School Lunch Program in Dade County public high schools

Problem: This research proposes to examine the effects of Reaganomics on pricing and participation in the regular paying sector of the National School Lunch Program in Dade County Public High Schools. Subproblems: The first subproblem is to examine the effects of Reaganomics on pricing in the regular paying sector of the National School Lunch Program in Dade County Public High Schools. The second subproblem is to examine the effects of Reaganomics on participation in the regular paying sector of the National School Lunch Program in Dade County Public High Schools. Hypotheses: The first hypothesis is that Reaganomics has resulted in price increases to the regular paying sector of the National School Lunch Program in Dade County Public High Schools. The second hypothesis is that Reaganomics has decreased the percentage of the regular paying sector participating in the National School Lunch Program in Dade County Public High Schools.