Thèse--Paris. / Bibliography: p. 305-306.

Thèse--Paris. / Bibliography: p. 305-306.

Since the field's inception, Science and Technology Studies (STS) has grappled with the task of creating suitable definitions of the terms "science" and "technology," but the discourse has become cyclical and unproductive. By focusing on real-world applications of these terms, through a case study of the technology "beat" at the Chicago Tribune, this research attempts to correct that misstep. At the Tribune, as in other major American newspapers, technology reporters operate within the business section, whereas science reporters are located within the general news section of the paper. Through personal interviews and an examination of science and technology articles, it became clear that reporters see "science" as pure research, whereas "technology" signifies the application of that knowledge toward a specific end. Though science and technology reporters cover similar topics, they do so in distinct ways with disparate goals. Moreover, technology journalism is actually more complex than the reporters recognize, as these articles discuss a variety of themes beyond commercial application, including project funding, administration and even research. This thesis illustrates that a disconnect exists between STS scholarship and the world of journalism. If STS scholars desire to remain relevant, they must embrace a stronger interaction with the journalism community. Not only should STS welcome more journalists into its fold, through educational programming and increased dialogue, but STS academics must also participate in the journalistic process themselves, by using their STS perspectives to write provocative articles for the general newspaper reader. Readers — and journalists — would benefit from the critical viewpoint that STS offers, and journalism can challenge and invigorate the scholarship in a way that has been lacking in recent years. / Master of Science

This thesis is an investigation that combines historical research into military records and genealogy in the examination of the brief military career and death in courageous circumstances of George P. Cole. It also considers the policies of the U.S. military as regards battlefield treatment of deaths, immediate burial and subsequent repatriation of the remains. The author draws upon family records, official government reports and the recollections of the friends and superiors of the deceased.

Demands for designing prime reliant, energy-efficient, and high performance thermal barrier coatings (TBCs) in gas turbines have led to a growing interest toward comprehensive microstructural characterization. Over the last decade, Synchrotron X-ray Diffraction (XRD) has established itself as a high-resolution strain measurement method for the thermally grown oxide (TGO) layer of thermal barrier coatings (TBCs). In this work, we present in-situ X-ray strain measurements of the TGO layer on cycled TBC specimens under thermo-mechanical loading using powerful high energy X-rays (~80.7- 86 keV) at Sector I-ID of the Advanced Photon Source at the Argonne National Laboratory. The evolution of TGO stresses was examined over one complete thermal cycle on TBC samples at various stages of the life fraction under various mechanical loads. Synchrotron X-Ray Diffraction under thermo-mechanical loading has shown the existence of strain qualitatively within the diffraction patterns. Quantitative results obtained through Pseudo-Voigt peak fitting over selected peaks show the evolution of strain over a thermal cycle. In initial experiments, it was shown that mechanical loading at 32 MPa resulted in a tensile strain (£22 = 0.00053±0.00039 for 7 minutes) along the [024] atomic plane of a-AbO3 that was brief before going into strain relief in the compressive region but higher in magnitude than the 64 MPa (£22 = 0.00039±0.00024 for 14 minutes). Follow-on experiments indicate the presence of tensile strains within the bond coat region of the TBC system. After initial assessment of the effect of mechanical loading, our findings indicate that the effect of mechanical load during the cycle, often neglected in TBC studies, is of significance to the strain evolution within each cycle. This determination of critical conditions for strain evolution ( e.g. the first cycle) will serve to improve overall accuracy in life prediction of these coatings and contribute to developing methods of improving fatigue behavior.

This study first offers a political, social, and economic overview of Texas during the first two decades of the twentieth century, including reaction in the Lone Star state to the declaration of war against Germany in April, 1917; the fear of saboteurs and foreign-born citizens; and the debate on raising a wartime army through a draft or by volunteerism. Then, focusing in-depth on northwest Texas, the study examines the Texas National Guard unit recruited there, the Seventh Texas Infantry Regiment. Using primarily the selective service registration cards of a sample of 1,096 members of the regiment, this study presents a portrait of the officers and enlisted soldiers of the Seventh Texas based on age, occupation, marital status, dependents and other criteria, something that has not been done in studies of World War I soldiers. Next, the regiment's training at Camp Bowie, near Fort Worth, Texas, is described, including the combining of the Seventh Texas with the First Oklahoma Infantry to form the 142nd Infantry Regiment of the Thirty-Sixth Division. After traveling to France and undergoing nearly two months of training, the regiment was assigned to the French Fourth Army in the Champagne region and went into combat for the first time. The study examines the combat experiences of these soldiers from northwest Texas and how they described and expressed their experiences to their families and friends after the armistice of November 11, 1918. The study concludes with an examination of how the local communities of northwest Texas celebrated the armistice, and how they welcomed home their "soldier boys" in the summer of 1919. This study also charts the changing nature of the Armistice Day celebrations and veteran reunions in Texas as time passed, as well as the later lives of some of the officers and men who served with the regiment.