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A Study of Mechanics: Prescription and Use

A Study of Mechanics: Prescription and Use

Date: August 1952
Creator: Le Beau, Maurine Schott
Description: This thesis studies historical punctuation its uses and standards developed.
Contributing Partner: UNT Libraries
Electrical resistivity as a measure of change of state in substrates: Design, development and validation of a microprocessor-based system.

Electrical resistivity as a measure of change of state in substrates: Design, development and validation of a microprocessor-based system.

Access: Use of this item is restricted to the UNT Community.
Date: December 2009
Creator: Le, Dong D.
Description: Smart structures are relevant and significant because of their relevance to phenomena such as hazard mitigation, structural health monitoring and energy saving. Electrical resistance could potentially serve as an indicator of structural well-being or damage in the structure. To this end, the development of a microprocessor-based automated resistance measurement system with customized GUI is desired. In this research, a nodal electrical resistance acquisition circuit (NERAC) system was designed. The system hardware interfaces to a laptop, which houses a customized GUI developed using DAQFactory software. Resistance/impedance was measured using DC/AC methods with four-point probes technique, on three substrates. Baseline reading before damage was noted and compared with the resistance measured after damage. The device was calibrated and validated on three different substrates. Resistance measurements were taken from PVDF samples, composite panels and smart concrete. Results conformed to previous work done on these substrates, validating the effective working of the NERAC device.
Contributing Partner: UNT Libraries
Experimental Analysis of Self-injury With and Without Protective Equipment

Experimental Analysis of Self-injury With and Without Protective Equipment

Date: December 1998
Creator: Le, Duy D. (Duy Dang)
Description: Outcomes of experimental analyses during which protective equipment (PE) was placed on three participants were compared to those during which PE was not provided to them. Experimental analysis conditions were presented using a multielement format, and the effects of PE were evaluated using a withdrawal design. Results of experimental analysis without PE suggested that self-injurious behavior (SIB) was maintained by negative reinforcement for two participants and nonsocial mechanisms for the third participant. However, SIB was eliminated either immediately or eventually for all participants when PE was provided during experimental analysis. Thus, outcomes of assessments with PE did not match those without PE, and no conclusion about variables associated with SIB could be drawn from experimental analyses with PE alone. Therefore, the present findings do not support the use of PE as an alternative to standard methods for conducting experimental analysis (i.e., without PE).
Contributing Partner: UNT Libraries
A Bidirectional Two-Hop Relay Network Using GNU Radio and USRP

A Bidirectional Two-Hop Relay Network Using GNU Radio and USRP

Date: August 2011
Creator: Le, Johnny
Description: A bidirectional two-hop relay network with decode-and-forward strategy is implemented using GNU Radio (software) and several USRPs (hardware) on Ubuntu (operating system). The relay communication system is comprised of three nodes; Base Station A, Base Station B, and Relay Station (the intermediate node). During the first time slot, Base Station A and Base Station B will each transmit data, e.g., a JPEG file, to Relay Station using DBPSK modulation and FDMA. For the final time slot, Relay Station will perform a bitwise XOR of the data, and transmit the XORed data to Base Station A and Base Station B, where the received data is decoded by performing another XOR operation with the original data.
Contributing Partner: UNT Libraries
Structure and Performance of El Polifemo de Oro for Solo Guitar by Reginald Smith Brindle

Structure and Performance of El Polifemo de Oro for Solo Guitar by Reginald Smith Brindle

Date: May 1993
Creator: LeBlanc, Paul G.
Description: El Polifemo de Oro was written in 1956 and revised by the composer in 1981. This two-fold investigation clarifies the structure of El Polifemo through careful analysis of the work and its revision, and by Smith Brindle's approach to composition based on his interviews and books. The second aspect is aimed toward the pragmatic performance issues of tempo, articulation, timbre, voice leading, and the other details of execution. Although the work was written according to serial techniques, the presence, in the twelve-note row, of triadic formations (minor triad, dominant seventh, fully-diminished seventh) juxtaposed with many tritone intervals suggests the use of tonal devices, which Smith Brindle does employ to effect tension and relaxation. It is assumed that tonal devices such as leading tones, stepwise movement in the bass, fourth and fifth relationships, and triadic constructions are heard against a traditional contextual basis and are therefore ways of implying resolution. Where tonal devices are not present, other structural components, i.e., rhythm, dynamics, timbre, etc., are examined with regard to their functions in creating or dissipating tension. Following the analysis of each of the four fragments is a discussion of performance implications based on the analysis. Both the analysis and performance aspects ...
Contributing Partner: UNT Libraries
A Generalization of Newton's Method

A Generalization of Newton's Method

Date: 1948
Creator: LeBouf, Billy Ruth
Description: It is our purpose here to investigate the method of solving equations for real roots by Newton's Method and to indicate a generalization arising from this method.
Contributing Partner: UNT Libraries
The Relationship Between Environmental Barriers and Modes of Technology Transfer: A Study of United States Companies with Operations in Mexico

The Relationship Between Environmental Barriers and Modes of Technology Transfer: A Study of United States Companies with Operations in Mexico

Date: August 1994
Creator: LeMaster, Jane
Description: This study is an empirical evaluation of the relationship between perceptions of the elements of the remote environment of business and the mode of transfer utilized by 90 United States companies transferring technology to Mexico. Characteristics of the technology, the company, and the industry were found, from a thorough search of the literature, to be the key aspects of technology transfer. The primary hypothesis predicted that a significant relationship would exist between perceptions of barriers and choice of transfer mode.
Contributing Partner: UNT Libraries
The Effects of Restricting the Response Space and Self-evaluation on Letter Quality in Beginning and Experienced Handwriters.

The Effects of Restricting the Response Space and Self-evaluation on Letter Quality in Beginning and Experienced Handwriters.

Date: December 2001
Creator: LePage, Julia
Description: This study analyzed the effects of restricting the response space and selfevaluation on students' handwriting quality in two beginning handwriters and two experienced handwriters. Students executed letters with and without using a transparent overlay, in a multiple-baseline-across-letters design. The use of the transparent overlay included drawing letters in a space restricted by the transparency; overlaying a model letter on top of the written letter and; evaluating if the two letters matched. Letter quality immediately improved when overlays were used, and handwriting quality maintained when the writing response was not restricted by the overlay transparency. Prompting and feedback were delivered contingent on on-task behavior. Analysis was based on three different measurement systems.
Contributing Partner: UNT Libraries
The Relationship between Self-concept and Authoritarianism and Certain Academic, Vocational, and Biographical Variables of College Freshmen

The Relationship between Self-concept and Authoritarianism and Certain Academic, Vocational, and Biographical Variables of College Freshmen

Date: August 1969
Creator: LeUnes, Arnold D.
Description: The problem is to study the relationship between two personality measures, self-concept and authoritarianism, as each relates to certain academic, vocational, and biographical variables of male freshmen attending a state-supported university in the Southwest.
Contributing Partner: UNT Libraries
Utilizing Traditional Environmental Knowledge in Industrialized Nations to Assist in Disaster Evacuations

Utilizing Traditional Environmental Knowledge in Industrialized Nations to Assist in Disaster Evacuations

Date: May 2013
Creator: Lea, Brandi M.
Description: Using traditional ecological knowledge (TEK), which is typically reserved for understanding how indigenous societies function successfully, and applying this to developed countries' ideas of disaster planning and response, emergency planners, public officials, and lay-persons can gain an understanding of their environment. Stories, history, education, and The waterborne evacuation of Lower Manhattan on September 11, 2001 provides a backdrop with which to test the tenets of TEK in a developed nation setting. This dissertation has found that TEK was effective when used by a developed nation and should be integrated into the current disaster system in the US.
Contributing Partner: UNT Libraries