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Development of a coaxiality indicator

Development of a coaxiality indicator

Access: Use of this item is restricted to the UNT Community.
Date: December 1999
Creator: Arendsee, Wayne C.
Description: The geometric dimensioning and tolerancing concept of coaxiality is often required by design engineers for balance of rotating parts and precision mating parts. In current practice, it is difficult for manufacturers to measure coaxiality quickly and inexpensively. This study examines feasibility of a manually-operated, mechanical device combined with formulae to indicate coaxiality of a test specimen. The author designs, fabricates, and tests the system for measuring coaxiality of holes machined in a steel test piece. Gage Repeatability and Reproducibility (gage R&R) and univariate analysis of variance is performed in accordance with Measurement System Analysis published by AIAG. Results indicate significant design flaws exist in the current configuration of the device; observed values vary greatly with operator technique. Suggestions for device improvements conclude the research.
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Current and Future Trends in Computer Use in Elementary School Settings

Current and Future Trends in Computer Use in Elementary School Settings

Date: August 1999
Creator: Al-Awidi, Hamed M.
Description: The study examined current and future trends in computer use in elementary school settings. A survey instrument was developed and validated for distribution to a random sample of 200 technology coordinators in the public school districts in the state of Texas from whom 95 responses were received. The survey instrument was used to obtain information about five areas of computer use in elementary schools. These areas are: physical configurations, instructional uses, implementation issues, training and staff development, and Internet use. The study found that all public school districts that participated in the study have acquired computer hardware in their elementary schools. In addition, some other advanced computer technology components are starting to be found in elementary schools, such as teacher workstations, CD-ROM, interactive video, computer multimedia, LCD panels, and laser printers. Respondents reported that elementary school teachers in their districts have incorporated computers into their classrooms as an instructional tool and many changes have occurred in teachersÂ’ teaching styles due to computers. However, there are some problems that hinder the effective use of computers. The major problem is lack of training. A high percentage of respondents, 81.3%, indicated that the majority of their elementary school teachers had completed less than ...
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The Computation of Ultrapowers by Supercompactness Measures

The Computation of Ultrapowers by Supercompactness Measures

Date: August 1999
Creator: Smith, John C.
Description: The results from this dissertation are a computation of ultrapowers by supercompactness measures and concepts related to such measures. The second chapter gives an overview of the basic ideas required to carry out the computations. Included are preliminary ideas connected to measures, and the supercompactness measures. Order type results are also considered in this chapter. In chapter III we give an alternate characterization of 2 using the notion of iterated ordinal measures. Basic facts related to this characterization are also considered here. The remaining chapters are devoted to finding bounds fwith arguments taking place both inside and outside the ultrapowers. Conditions related to the upper bound are given in chapter VI.
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Korean studies in North America 1977-1996: A bibliometric study

Korean studies in North America 1977-1996: A bibliometric study

Date: December 1999
Creator: Chun, Kyungmi
Description: This research is a descriptive bibliometric study of the literature of the field of Korean studies. Its goal is to quantitatively describe the literature and serve as a model for such research in other area studies fields. This study analyzed 193 source articles and 7,166 citations in the articles in four representative Korean and Asian studies journals published in North America from 1977 to 1996. The journals included in this study were Korean Studies (KS), the Journal of Korean Studies (JKS), the Journal of Asian Studies (JAS), and the Harvard Journal of Asiatic Studies (HJAS). Subject matters and author characteristics of the source articles were examined, along with various characteristics such as the form, date, language, country of origin, subject, key authors, and key titles of the literature cited in the source articles. Research in Korean studies falls within fourteen broad disciplines, but concentrated in a few disciplines. Americans have been the most active authors in Korean studies, followed closely by authors of Korean ethnicity. Monographic literature was used most. The mean age of publications cited was 20.87 and the median age of publications cited was 12. The Price Index of Korean studies as a whole is 21.9 percent. Sources ...
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Hearing History: Musical Borrowing in the Percussion Ensemble Works, Duo Chopinesque and Chameleon Music

Hearing History: Musical Borrowing in the Percussion Ensemble Works, Duo Chopinesque and Chameleon Music

Date: December 1999
Creator: Fulton, Stephen L.
Description: Duo Chopinesque by Michael Hennagin and Chameleon Music by Dan Welcher represent two of the most significant percussion ensemble compositions written in the last twenty years. Both works are written for the mostly mallet type of percussion ensemble wherein the keyboard instruments predominate. However, the most unique aspect of these two pieces is their use of musical quotation. Duo Chopinesque borrows Chopin's Prelude in E minor in its entirety, while Chameleon Music borrows portions from four Mozart Sonatas. This paper places each work within the history of the percussion ensemble, and in the larger history of musical quotation in the twentieth century. In addition, the compositional characteristics of both works are examined with particular emphasis on each composer's use of borrowed material from the music of Mozart and Chopin. Particular attention is paid to the relationship between quoted material and newly composed rhythmic motives.
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The Relation of Attachment, Adjustment and Narcissism to Masculine Gender Role Conflict

The Relation of Attachment, Adjustment and Narcissism to Masculine Gender Role Conflict

Date: August 1999
Creator: Selby, Brian W.
Description: The purpose of this study was to assess the relationship between masculine gender role conflict, attachment variables, narcissism, and adjustment. It was expected that men who reported higher masculine gender role conflict would also report unhealthy attachment, have a greater degree of narcissism and poorer adjustment. This study employed a sample of undergraduate males who completed self-report questionnaires measuring masculine gender role conflict, narcissism, adjustment, and attachment. Hypotheses were tested using canonical correlation techniques. Results indicated that healthy attachment was related to low masculine gender role conflict; however, unhealthy attachment was not related to high masculine gender role conflict. In terms of narcissism, higher amounts of narcissism were related to high amounts of gender role conflict, but in a subset of results individuals who reported low masculine gender role conflict also reported higher narcissism in areas that are assumed to relate to positive self regard. Results related to adjustment indicated that high masculine gender role conflict was related to less psychological well-being replicating past studies. Theoretical and methodological issues were discussed in light of these findings.
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On the Removal of Download Access to Grateful Dead Soundboards from the Live Music Archive

On the Removal of Download Access to Grateful Dead Soundboards from the Live Music Archive

Date: August 1, 2012
Creator: Berg, Jeremy
Description: Article on the removal of download access to Grateful Dead soundboards from the Live Music Archive.
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Peer Education: Building Community Through Playback Theatre Action Methods

Peer Education: Building Community Through Playback Theatre Action Methods

Access: Use of this item is restricted to the UNT Community.
Date: August 1999
Creator: Kintigh, Monica R.
Description: The primary purpose of this study was to use some of the action methods of playback theatre to facilitate the acquisition of knowledge through the experience of building community. The impact of action methods on group dynamics and the relationship among methods, individual perceptions, and the acquisition of knowledge were analyzed. The researcher suggested that playback theatre action methods provided a climate in which groups can improve the quality of their interactions. The Hill Interaction Matrix (HIM) formed the basis for the study's analysis of interactions. Since the researcher concluded there were significantly more interactions coded in the "power quadrant" after training, the researcher assumed that playback theatre action methods are a catalyst for keeping the focus on persons in the group, encouraging risk-taking behaviors, and producing constructive feedback between members. Based on session summaries, individual interviews, and an analysis of the Group Environment Scale (GES), the training group became more cohesive, became more expressive, promoted independence, encouraged self-discovery, and adapted in innovative ways. The experience of an interconnected community created a space where positive growth could occur. The researcher concluded that the process of community building is intricately connected with a person's ability to make meaning out of experiences. ...
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The effects of combining positive and negative reinforcement during training.

The effects of combining positive and negative reinforcement during training.

Date: May 2007
Creator: Murrey, Nicole A.
Description: The purpose of this experiment was to compare the effects of combining negative reinforcement and positive reinforcement during teaching with the effects of using positive reinforcement alone. A behavior was trained under two stimulus conditions and procedures. One method involved presenting the cue ven and reinforcing successive approximations to the target behavior. The other method involved presenting the cue punir, physically prompting the target behavior by pulling the leash, and delivering a reinforcer. Three other behaviors were trained using the two cues contingent on their occurrence. The results suggest that stimuli associated with both a positive reinforcer and an aversive stimulus produce a different dynamic than a situation that uses positive reinforcement or punishment alone.
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Near-term Health Benefits of Greenhouse Gas Reductions: A Proposed Assessment Method and Application in Two Energy Sectors of China

Near-term Health Benefits of Greenhouse Gas Reductions: A Proposed Assessment Method and Application in Two Energy Sectors of China

Date: March 1999
Creator: Wang, Xiaodong & Smith, Kirk R.
Description: This is a study of projected near-term health benefits associated with greenhouse (GHG) reductions resulting from changes in energy efficiency and structure of energy use in the power and household sectors of China. The work was commissioned by the former Office of Global and Integrated Environmental Health at WHO, in order to explore the scope for modelling in the assessment of such short-term health benefits. China was selected as an appropiate case study for this work, as it fulfilled most of the criteria required, including the fact that it is a large country, with data sets available on air pollution and health, and with information on projected trends in the consumption of fossil fuels
Contributing Partner: UNT Libraries