Thesis (D. Min.)--Midwestern Baptist Theological Seminary, 2005. / Abstract. Includes bibliographical references (leaves 168-172).

Thesis (D. Min.)--Midwestern Baptist Theological Seminary, 2005. / Abstract. Includes bibliographical references (leaves 242-256)

Friction stir processing (FSP) was applied to produce aluminum based in situ composites from powder mixtures of Al-Fe, Al-Mo, and Al-Fe2O3. Billet of powder mixtures was prepared by the use of conventional pressing and sintering route. The sintered billet was then subjected to multiple passages of FSP. During FSP, the material has experienced both high temperature and very large plastic strain. The basic idea for fabricating the composites is to combine the hot working nature of friction stir processing (FSP) and the exothermic reaction between aluminum and transition metals (Al-Fe, Al-Mo) or metal oxides (Al-Fe2O3). In the Al-Fe alloy, in situ Al¡VFe reaction can be induced during FSP and form Al-Al13Fe4 composite. The size of reinforcing particles formed by the in-situ reaction is ~100 nm. In Al-Mo alloys, fine Al-Mo intermetallic particles with an average size of ~200 nm were formed and uniformly dispersed in the aluminum matrix by FSP. The Al-Mo intermetallic particles were identified mainly as Al12Mo with minor amount of Al5Mo. The exothermic reaction could result in local melting of Al at the Al/TM interface, and the liquid Al may accelerate the reaction. In addition, it is suggested that the critical mechanism responsible for the rapid reaction and the formation of nanometer sized particles in FSP is the effective removal of the Al-TM intermetallic phase from the Al-TM interface, maintaining an intimate contact between TM and Al. In the Al-Fe2O3 system, the reactions taking place during FSP includes the thermite reaction (2Al +Fe2O3 ¡÷ Al2O3 + 2Fe), and the reaction between the reduced Fe and Al to form Al13Fe4. In the FSPed Al-Fe2O3 specimens, there are two types of second phase particles, Al13Fe4 and Al2O3. The Al2O3 particles (about 10 nm in size) usually appear as a cluster of 100-200 nm in diameter. There are two types of Al2O3 phases existed in the Al matrix after FSP passes, depending on the content of Fe2O3. One is £^-Al2O3 in Al-2Fe2O3 specimens, and the other is £\-Al2O3 in Al-4Fe2O3 specimens. It is suggested that the formation of different type of Al2O3 particles in the Al-Fe2O3 composites may be attributed to different heat release in each system. The lower heat release in Al-2Fe2O3 sample favors the formation of the while the higher heat release in Al-4Fe2O3 sample results in the £\-Al2O3. The Al-Al13Fe4/Al2O3 composite produced by FSP exhibits both high strength and good tensile ductility. The higher strength in Al-Fe2O3 specimen may be due to the presence of fine Al2O3 particles. The flow stress of the Al-4Fe2O3 composite can maintain at 100 MPa even at 773 K. The good thermal stability and high temperature strength of Al-Al13Fe4/Al2O3 composites could be attributed to the fine dispersion of second phase particles in the aluminum matrix, especially the nanometric Al2O3 particles. These Al2O3 particles are very stable at elevated temperatures, even after long time exposure at 873 K. The temperature excursion in FSP is determined by both the FSP parameters and the exothermic reaction involved. The peak temperature in Al-Fe or Al-Fe2O3 system during FSP was calculated as a function of the fraction of Fe or Fe2O3 reacted. Based on calculated results, it is noted that with the in situ reaction, the value of can easily reach the melting point of Al, especially for the Al-Fe2O3 system. The reaction mechanism and microstructure evolution during FSP are discussed.

Abstract The family can be viewed as a reflector of culture, which becomes increasingly rich and varied as time goes by. It is like a person who undergoes all the vicissitudes of human beings' experiences, so it is not only a valuable specimen for us to have a better understanding of the course of human history but also an important basis for us to know ourselves. For this reason, the family novels have always been a extremely flexible and rich narrative genre, which represent complex social performance and the culture world in both eastern and western literature. This thesis is focused on Mo Yan's four novels related to the family. They were "Red Sorghum Family", " herbivorous Family", " Big Breasts & Wide Hips", and " Life and Death Are Wearing Me Out". For one thing, we deconstructed the survival ethics masked in these novels, analyzed the heroic image described in these novels, and discussed the issue of "degradation of species ". In what follows, we explored the underlying love ethic in these novels from the two perspectives: the suspension of moral and the reversion of tradition. Previous studies have demonstrated that in Mo Yan's family novels, making the flesh public is used as a method of unfolding primitive vitality. Third, we delved into the connotation after the pleasure of making love (body of pleasure) through an analysis of Mo Yan's praising body and preference over the land and lower body. Mo Yan's family novels are also filled with the plots about hunger and violence. Finally, we attempted to investigate the narrative skills and moral of Mo Yan's family novels. With the fact that Mo Yan elaborated the plots, his works about the family are one of the most brilliant novels. These novels describe the lifeblood of both paternal and maternal family system; they also revealed the implications about Mo Yan's viewpoints on the relationship between nation and country in the society intertwined with war, hunger, and violence.

Uranium-Molybdenum (U-Mo) alloys are of interest to the nuclear engineering community for their potential use as reactor fuel. The addition of molybdenum serves to stabilize the gamma phase of uranium, as well as increasing the melting point of the fuel. Thermal properties of U-Mo alloys have not been fully characterized, especially within the area of partial phase decomposition of the gamma phase of the alloy. Additional data was acquired through this research to expand the characterization data set for U-Mo alloys. The U-Mo alloys used for this research were acquired from the Idaho National Laboratory and consisted of three alloys of nominal 7, 10, and 13 percent molybdenum by weight. The sample pins were formed by vacuum induction melt casting. Once the three sample pins were fabricated and sent to the Fuel Cycle and Materials Laboratory at Texas A&M University, the pins were homogenized and sectioned for heat treatment. Several heat treatments were performed on the samples to induce varying degrees of phase decomposition, and the samples were subsequently sectioned for phase verification and thermal analysis. An Electron Probe Microanalyzer with wavelength dispersive spectroscopy was used to observe the phases in the samples as well as to characterize each phase. The density of each sample was determined using Archimedes method. Finally, a light flash analyzer was used to determine thermal diffusivity of the samples up to 300 degrees C as well as to estimate the thermal conductivity. For U-10Mo, thermal diffusivity increased with increasing phase decomposition from gamma to alpha +U2Mo while U-7Mo saw a flattening of the thermal diffusivity curve with increased phase decomposition.

The entire thesis text is included in the research.pdf file; the official abstract appears in the short.pdf file; a non-technical public abstract appears in the public.pdf file. Title from PDF of title page (University of Missouri--Columbia, viewed on January 19, 2010). Thesis advisor: Dr. Charles F. Rabeni. Includes bibliographical references.

Project Thesis (D. Min.)--Denver Conservative Baptist Seminary, 1998. / Includes bibliographical references (leaves 126-130).

Thesis (Ph. D.)--University of Missouri-Columbia, 2003. / Typescript. Vita. Includes bibliographical references (leaves [221]-233). Also available on the Internet.

Thesis (D. Min.)--Harding University Graduate School of Religion, 2000. / Abstract. Includes bibliographical references (leaves 165-169).

Thesis (D. Min.)--Midwestern Baptist Theological Seminary, 2002. / Abstract. Includes bibliographical references (leaves 243-246).