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The Value of Filmstrips in the Third Grade

The Value of Filmstrips in the Third Grade

Date: 1950
Creator: Adair, Elva Gaynelle
Description: The purpose of this study is to determine the possible influence of the use of filmstrip material upon a group of third-grade pupils as compared with another group of third-grade pupils not using filmstrip materials.
Contributing Partner: UNT Libraries
Joint Schemes for Physical Layer Security and Error Correction

Joint Schemes for Physical Layer Security and Error Correction

Date: August 2011
Creator: Adamo, Oluwayomi Bamidele
Description: The major challenges facing resource constraint wireless devices are error resilience, security and speed. Three joint schemes are presented in this research which could be broadly divided into error correction based and cipher based. The error correction based ciphers take advantage of the properties of LDPC codes and Nordstrom Robinson code. A cipher-based cryptosystem is also presented in this research. The complexity of this scheme is reduced compared to conventional schemes. The securities of the ciphers are analyzed against known-plaintext and chosen-plaintext attacks and are found to be secure. Randomization test was also conducted on these schemes and the results are presented. For the proof of concept, the schemes were implemented in software and hardware and these shows a reduction in hardware usage compared to conventional schemes. As a result, joint schemes for error correction and security provide security to the physical layer of wireless communication systems, a layer in the protocol stack where currently little or no security is implemented. In this physical layer security approach, the properties of powerful error correcting codes are exploited to deliver reliability to the intended parties, high security against eavesdroppers and efficiency in communication system. The notion of a highly secure and reliable ...
Contributing Partner: UNT Libraries
VLSI Architecture and FPGA Prototyping of a Secure Digital Camera for Biometric Application

VLSI Architecture and FPGA Prototyping of a Secure Digital Camera for Biometric Application

Date: August 2006
Creator: Adamo, Oluwayomi Bamidele
Description: This thesis presents a secure digital camera (SDC) that inserts biometric data into images found in forms of identification such as the newly proposed electronic passport. However, putting biometric data in passports makes the data vulnerable for theft, causing privacy related issues. An effective solution to combating unauthorized access such as skimming (obtaining data from the passport's owner who did not willingly submit the data) or eavesdropping (intercepting information as it moves from the chip to the reader) could be judicious use of watermarking and encryption at the source end of the biometric process in hardware like digital camera or scanners etc. To address such issues, a novel approach and its architecture in the framework of a digital camera, conceptualized as an SDC is presented. The SDC inserts biometric data into passport image with the aid of watermarking and encryption processes. The VLSI (very large scale integration) architecture of the functional units of the SDC such as watermarking and encryption unit is presented. The result of the hardware implementation of Rijndael advanced encryption standard (AES) and a discrete cosine transform (DCT) based visible and invisible watermarking algorithm is presented. The prototype chip can carry out simultaneous encryption and watermarking, which ...
Contributing Partner: UNT Libraries
A Differential Study of Reasons Why Students Drop Out of School as Related to Actual Dropout-preventive Practices of a Metropolitan School District

A Differential Study of Reasons Why Students Drop Out of School as Related to Actual Dropout-preventive Practices of a Metropolitan School District

Date: August 1972
Creator: Adams, Ambrose Davidson, 1936-
Description: The problem of this study was the differentiation of high schools in a metropolitan school district from the standpoint of the measures taken to prevent student dropouts.
Contributing Partner: UNT Libraries
Solutions of the Equations of Radiative Transfer by an Invariant Imbedding Approach

Solutions of the Equations of Radiative Transfer by an Invariant Imbedding Approach

Date: January 1969
Creator: Adams, Charles N.
Description: This thesis is a study of the solutions of the equations of radiative transfer by an invariant imbedding approach.
Contributing Partner: UNT Libraries
The Development of Dramatic Exposition in the Plays of George Farquhar

The Development of Dramatic Exposition in the Plays of George Farquhar

Date: August 1965
Creator: Adams, Dale Talmadge
Description: The purpose of this thesis is to make further contribution in filling the gap in detailed analyses of George Farquhar's plays.
Contributing Partner: UNT Libraries
Female Inheritors of Hawthorne's New England Literary Tradition

Female Inheritors of Hawthorne's New England Literary Tradition

Date: August 1994
Creator: Adams, Dana W. (Dana Wills)
Description: Nineteenth-century women were a mainstay in the New England literary tradition, both as readers and authors. Indeed, women were a large part of a growing reading public, a public that distanced itself from Puritanism and developed an appetite for novels and magazine short stories. It was a culture that survived in spite of patriarchal domination of the female in social and literary status. This dissertation is a study of selected works from Nathaniel Hawthorne, Sarah Orne Jewett, and Mary E. Wilkins Freeman that show their fiction as a protest against a patriarchal society. The premise of this study is based on analyzing these works from a protest (not necessarily a feminist) view, which leads to these conclusions: rejection of the male suitor and of marriage was a protest against patriarchal institutions that purposely restricted females from realizing their potential. Furthermore, it is often the case that industrialism and abuses of male authority in selected works by Jewett and Freeman are symbols of male-driven forces that oppose the autonomy of the female. Thus my argument is that protest fiction of the nineteenth century quietly promulgates an agenda of independence for the female. It is an agenda that encourages the woman to ...
Contributing Partner: UNT Libraries
A Study of Pragmatism: its Influence on Certain Modern Trends in Education

A Study of Pragmatism: its Influence on Certain Modern Trends in Education

Date: 1941
Creator: Adams, Donald Quincy
Description: It is the purpose of this thesis to show that the pragmatic philosophy is basically responsible for present-day developments in various teaching techniques.
Contributing Partner: UNT Libraries
The Vegetation and Habitat Factors of Red River County, Texas

The Vegetation and Habitat Factors of Red River County, Texas

Date: August 1938
Creator: Adams, Exa T.
Description: The aim of this study has been to measure some of the ecological factors in a series of plant habitats and their relation to the existing vegetation in selected twenty soil types of Red River County, Texas.
Contributing Partner: UNT Libraries
Base Effects on the Thermal Decomposition of Sec-butyllithium Solutions

Base Effects on the Thermal Decomposition of Sec-butyllithium Solutions

Date: June 1966
Creator: Adams, George Michael
Description: The pyrolysis of sec-butyllithium in solution was studied in an attempt to understand the loss of stereo-specificity and the atypical kinetics that have been reported. Additionally, the effect of added lithium alkoxides was studied to determine their effects on the highly reactive sec-butyllithium substrate.
Contributing Partner: UNT Libraries