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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
221

Procedures and Methods Used by Dallas - Fort Worth Food Brokers in Securing New Accounts

Fouts, Theron Judson 08 1900 (has links)
The chief problem of this study was to analyze the methods used by food brokers in the Dallas - Fort Worth area and to determine the general policies which were followed by those brokers in the selection and procurement of those accounts which later proved successful.
222

A Survey of the Graduates of Technical High School, Fort Worth, Texas, from 1942-1952 to Determine the Effectiveness of the Training Program

McAbee, Robert M. 08 1900 (has links)
The purpose of this study was to make a survey of the graduates of Technical High School of Fort Worth, Texas, for a period of ten years, from 1942 to 1952, to determine the effectiveness of the preparation they received in helping the graduates to choose a vocation and acquire the basic skills and attitudes that helped them in obtaining a position and to continue as successful workers.
223

Attitudes, Perceptions, and Personal Problems of Three Groups of High School Students

Arnold, Anna Beth 08 1900 (has links)
The problem of the study was to compare three groups of high school seniors--college preparatory, vocational preparatory, and general diploma students--in scholastic achievement, attitudes, and types of personal problems.
224

Identification of College Freshmen According to Scholastic and Persistence Potential

Adams, William F. (William Franklin) 12 1900 (has links)
This study was designed to develop a procedure for the identification of freshman students at risk in the academic and social integration process at Texas Christian University. The data for the study were collected from the Student Information Form (SIF) and student records system at Texas Christian University. The data included demographic, attitudinal, educational background and one-year persistence indicators (retain and drop) as well as one-year cumulative grade point averages for the fall 1990 entering freshman class.
225

Ecological Factors Related to Juvenile Delinquency

Adrian, Larry Michael 05 1900 (has links)
The purpose of this study is to discover the spatial distribution of adjudicated delinquents and to analyze the relationship of these delinquents to a distribution of other attributes of population aggregates. Specifically, this study focuses on the relationship in Fort Worth between the social and economic data of a specific zone. Chapter I and III of this study discuss previous ecological studies and their findings. Furthermore, possible restriction to previous studies are brought out and the design for this study is developed. Chapter III presents the methodology design used in the project. Chapter IV and V present findings of this study and discuss implication drawn from these findings. Moreover, statistically significant results are explained with regard to present sociological knowledge and future research.
226

A Historical Case Study of the Arikara, Hidatsa, and Mandan Indians attending Hampton Normal and Agricultural Institute, Virginia, 1878-1911.

Jones-Oltjenbruns, Nancy 12 April 2012 (has links)
A HISTORICAL CASE STUDY OF THE ARIKARA, HIDATSA, AND MANDAN INDIANS AT HAMPTON NORMAL AND AGRICULTURAL INSTITUTE, VIRGINIA, 1878-1911 By Nancy E. Jones-Oltjenbruns, Ph.D. A Dissertation submitted in partial fulfillment of the requirements for the degree of Doctor of Philosophy at Virginia Commonwealth University. Virginia Commonwealth University, 2012 Director: Maike I. Philipsen, PhD Professor, School of Education Hampton Normal and Agricultural Institute played a role in the education of American Indians. This facet of American Indians education was examined through the lives of Arikara, Hidatsa, and Mandan students from the Fort Berthold Reservation in North Dakota. The Three Affiliated Tribes’ students attended Hampton between 1878 and 1911. The federal government generally viewed American Indians as a problem so efforts were made to assimilate them into the majority culture. Education was a component of that process. The lack of knowledge about the Plains Indians contributed to their selection for this study. Lesser known tribes do not have a prominent place in the scholarship on 19th century Indian education. This study contributes to the literature by providing historical evidence related to the Fort Berthold Reservation students. The majority of teachers who instructed Indian students were non-Indian, but it was important for them to understand the specifics of Indian culture. Early staff at Hampton thought of themselves as civilizers, missionaries, and teachers. When the doors of Hampton opened, it was the role of staff to instruct the African American students in those skills that would allow them to advance in the White world. This was the same mandate regarding American Indians. The staff was instrumental in every aspect of American Indian education. Although Indian students including the Fort Berthold students never gained equal standing with African Americans or Whites on campus, they acquired a level of acceptance by staff and students. Views of Indian students toward staff, their education, school, and fellow students varied. There were members of the Fort Berthold Reservation who appreciated their education at Hampton, while some students did not complete their educational endeavors. Generally, Fort Berthold students learned skills that would be useful upon their return home. The Indian students felt they had an obligation to their people and that education was more than groundwork for their own prosperity. While education could provide a respectable living, the Fort Berthold Reservation students had a responsibility to teach those back on the reservation.
227

A multi-year comparison of vegetation phenology between military training lands and native tallgrass prairie using TIMESAT and moderate-resolution satellite imagery

Pockrandt, Bryanna Rae January 1900 (has links)
Master of Arts / Department of Geography / J. M. Shawn Hutchinson / Time series of normalized difference vegetation index (NDVI) data from satellite spectral measurements can be used to characterize and quantify changes in vegetation phenology and explore the role of natural and anthropogenic activities in causing those changes. Several programs and methods exist to process phenometric data from remotely-sensed imagery, including TIMESAT, which extracts seasonality parameters from time-series image data by fitting a smooth function to the series. This smoothing function, however, is dependent upon user-defined input parameter settings which have an unknown amount of influence in shaping the final phenometric estimates. To test this, a sensitivity analysis was conducted using MODIS maximum value composite NDVI time-series data acquired for Fort Riley, Kansas during the period 2001-2012. The phenometric data generated from the different input setting files were compared against that from a base scenario using Pearson and Lin’s Concordance Correlation Analyses. Findings show that small changes to parameter settings results in insignificant differences in phenometric estimates, with the exception of end of season data and growing season length. Next, a time-series analysis of the same MODIS NDVI data for Fort Riley and nearby Konza Prairie Biological Station (KPBS) was conducted to determine if significant differences existed in selected vegetation phenometrics. Phenometrics of interest were estimated using TIMESAT and based on a Savitzky-Golay filter with parameter settings found optimal in the previous study. The phenometrics start of season, end of season, length of season, maximum value, and small seasonal integral were compared using Kolmogorov-Smirnov (K-S) and showed significant differences existed for all phenometrics in the comparison of Fort Riley training areas and KPBS, as well as low- versus high-training intensity areas within Fort Riley. Fort Riley and high-intensity training areas have earlier dates for the start and end of the growing season, shorter growing season lengths, lower maximum NDVI values, and lower small seasonal integrals compared to KPBS and low-intensity training areas, respectively. Evidence was found that establishes a link between military land uses and/or land management practices and observed phenometric differences.
228

Die geskiedenis van Fort Beaufort van 1822 tot 1843

03 November 2014 (has links)
M.A. (History) / Please refer to full text to view abstract
229

Existence d'une lacune de miscibilité dans le ternaire U-Nd-O et son lien avec la structure HBS du combustible nucléaire irradié / Existence of a miscibility gap in the U-Nd-O ternary system and its relationship with the HBS of irradiated nuclear fuel.

Dottavio, Giannina 03 November 2014 (has links)
L'énergie nucléaire constitue aujourd'hui une partie importante de la production d'électricité dans le monde, notamment en France. Dans les réacteurs nucléaires, le combustible le plus utilisé est le dioxyde d'uranium. Dans cette thèse, nous nous intéressons plus particulièrement aux modifications de la structure cristalline du combustible irradié liées à l'augmentation de son taux de combustion. Nous avons confirmé que, pour des conditions proches du combustible irradié, une lacune de miscibilité existe dans le ternaire U-Nd-O. Comme (U,Nd)O2 est un matériau modèle du combustible, nous avons recherché l'existence d'une lacune de miscibilité pour le combustible irradié, qui serait alors considéré comme un point dans un pseudo diagramme de phases. Des mesures par diffraction des rayons X sur combustible irradié ont donné des résultats cohérents avec cette hypothèse. Fort de ce résultat nous proposons une nouvelle interprétation de l'évolution de la microstructure du combustible irradié en fonction du taux de combustion qui s'appuie sur l'existence de cette lacune de miscibilité. / The nuclear energy represents today an important fraction of electricity production in the world and especially in France. The most used nuclear fuel today is the uranium dioxide UO2. In this thesis, we have studied the crystallographic structure evolution of this material related to the increase of its burn-up.We have confirmed that, under conditions similar of those of irradiated nuclear fuel, a miscibility gap exists in the (U1-yNdy)O2 system. As (U1-yNdy)O2 system can be considered as a model of the fuel, we have search for the existence of a miscibility gap in the irradiated fuel, which would be considered as a ternary pseudo diagram de phases. XRD measurements of theses system give us results consistent with this hypothesis.Based on this evidence, we propose a new interpretation of the microstructure evolution of the irradiated fuel as a function of the burn-up.
230

Modélisation des pales d'éoliennes ou d'hydroliennes en environnement naturel à l'aide d'un code fluide-structure / Fluid-structure interaction on wind turbine blades

Lothodé, Corentin 24 September 2018 (has links)
Ce travail porte sur la mise en œuvre de simulations sur des pales de machines tournantes. Une première partie de la thèse porte sur l’amélioration des performances du couplage fluide-structure. Des nouveaux algorithmes sont présentés. Une nouvelle méthode de déformation de maillage est évaluée. Les développements sont validés à partir de plusieurs cas tests. La deuxième partie porte sur l’application des avancées à des machines tournantes. Une première validation est faite sur une hydrolienne. La vibration d’une pale au passage du mat est étudiée. Enfin, des résultats sur une hydrolienne industrielle sont exposés. / A methodology to simulate blades of turbines is developed. A first part is dedicated to improving the performance of the fluid-structure coupling. New algorithms are presented. A new mesh morphing solution is shown. Developments are validated on many test cases. A second part is dedicated to applying the developments on turbines. A first validation is made on a water turbine. The vibration of a blade interacting with a mast is studied. Finally, some results of an industrial water turbine are shown.

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