Trace Elemental Analysis of Ashes in the Combustion of the Binder Enhanced d-RDF by Inductively Coupled Plasma Atomic Emission Spectroscopy (open access)

Trace Elemental Analysis of Ashes in the Combustion of the Binder Enhanced d-RDF by Inductively Coupled Plasma Atomic Emission Spectroscopy

Incineration is an attractive solution to the problems of disposing of municipal solid wastes and supplying energy. Because up to 25 percent of the waste in refuse-derived-fuel systems is ash, the physical and chemical characteristics of ash become more and more important for its potential impacts and methods suitable for their disposal. Trace elements concentration in ash is of great interest because of its relationship to regulatory criteria under the Resource Conservation and Recovery Act (RCRA) regarding toxicity and hazards. The applications of a microwave oven sample dissolution method has been tested on a variety of standard reference materials, with reproducible and accurate results. Fourteen trace elements, As, Ba, Be, Cd, Cr, Cu, Hg, Ni, Pb, Sb, Se, Tl, V, and Zn, from the dissolved ash samples were determined by inductively coupled plasma atomic emission spectrometry.
Date: November 1988
Creator: Tai, Chia-Hui
System: The UNT Digital Library
A Comparison of Meansort and Quicksort (open access)

A Comparison of Meansort and Quicksort

The main purpose of this project is to compare a new sorting method- Meansort with its preceding sorting method- Quicksort. Meansort uses the mean value for each key to determine the partition of the file, but Quicksort selects at random. Experiments proved that in some ways Meansort is superior to Quicksort but is still not perfect since it always needs a mean value for each key. This project implements these two methods and determines the situations under which each of these methods outperforms the other.
Date: November 1985
Creator: Tsang, Pey Betty
System: The UNT Digital Library
The Data Structure of a KSAM Key Directory (open access)

The Data Structure of a KSAM Key Directory

The purpose of this project is to explore the alternate data structures for a disk file which is currently a preorder binary tree. specifically, the file is the key directory for an implementation of Keyed Sequential Access Method (KSAM) in a mini-computer operating system. A new data structure will be chosen, with the reasons for that choice given, and it will be incorporated into the existing system.
Date: November 1980
Creator: Kirchoff, Deanna T.
System: The UNT Digital Library
An analysis of student foundation programs in institutions of higher education in the United States (open access)

An analysis of student foundation programs in institutions of higher education in the United States

The purpose of this study was to describe and to assess the development, current status, and contributions of Student Foundation programs in institutions of higher education in the United States.
Date: November 1978
Creator: Milki, Mimi A.
System: The UNT Digital Library
El Desarrollo de los Caracteres Anormales en las Obras de Emilia Pardo Bazán (open access)

El Desarrollo de los Caracteres Anormales en las Obras de Emilia Pardo Bazán

The purpose of this investigation is to determine the change in characterization that takes place in the works of Emilia Pardo Bazán. Source material include the writings of such critics of Spanish literature as Richard Chandler, Kessel Schwartz, Emiliano Díez-Echarri, José M. Roca Franquesa, Federico C. Saínz de Robles, and José A. Balseiro. Emilia Pardo Bazán wrote a total of twenty novels. From this collection ten were selected which best exemplify the change in characterization in her writings.
Date: November 1971
Creator: Hudgins, Ida Marie
System: The UNT Digital Library