Production of mullite fibers

Disclosed here is a process for making mullite fibers wherein a hydrolizable silicon compound and an aluminum compound in the form of a difunctional aluminum chelate are hydrolized to form sols using water and an alcohol with a catalytic amount of hydrochloric acid. The sols are mixed in a molar ratio of aluminum to silicon of 3 to 1 and, under polycondensation conditions, a fibrous gel is formed. From this gel the mullite fibers can be produced

The Guthi System of Nepal

The purpose of this research is to understand the role of the guthi system in Nepali society, the relationship of the guthi land tenure system with Newari guthi, and the effect of modern society and technology on the ability of the guthi system to maintain and preserve tangible and intangible cultural heritage in Nepal. This research took place in three different sections of Kathmandu. The methodology behind this research was a combination of historical analysis of the traditional role of the guthi system in Nepal along with three case studies of guthi organizations with different assigned functions. These case studies consisted of interviews with key informants and observations of social phenomena organized by each respective guthi. The outcomes and scope of this research is limited by the number of guthi organizations researched, language barriers, the amount of time spent in the field researching, and my limited understanding of this incredibly vast system. The literature review in this research will provide the historical analysis of the guthi system and contextualize the information provided in the findings. The research findings will consist of the three case studies of the three distinct guthi: the raj guthi of Pashupatinath Temple, the Seto and Rato Matsyendranath, and a funeral guthi. The analysis will combine the historical analysis and case studies to answer the research questions of this study. This research concludes that the guthi system has been modified due to a changing Nepali society and that its traditional role in cultural heritage maintenance is threatened

The Rhetoric of Jesus Christ in the Gospel

A thesis presented to the faculty of the College of Humanities at Morehead State University in partial fulfillment of the requirements for the Degree of Master of Arts by Patrick Scott Tucker on November 25, 1996

Nature of magnetic excitations in the iron pnictides and its pertinence to superconductivity as studied by inelastic neutron scattering

Unconventional superconductivity and antiferromagnetism are often found in close proximity to one another. For the series of compounds Ba(Fe$_{1-x}$Co$_x$)$_2$As$_2$, which possesses both antiferromagnetism and superconductivity for the under-doped range of composition, this observation is certainly true. The close proximity, and in fact coexistence for under-doped Ba(Fe$_{1-x}$Co$_x$)$_2$As$_2$, of antiferromagnetism and superconductivity has encouraged speculation that antiferromagnetic spin fluctuations may mediate the electron pairing interaction in unconventional superconductors. Previous studies indicated that the spin fluctuations at optimally-doped Ba(Fe$_{1-x}$Co$_x$)$_2$As$_2$ are diffusive, while those at \bafeas are well defined spin wave excitations. Therefore, the nature of magnetic excitations in Ba(Fe$_{1-x}$Co$_x$)$_2$As$_2$ must change with the introduction of cobalt; but it is unclear if that change is merely a consequence of the loss of antiferromagnetic order, or a necessary ingredient for the appearance of superconductivity. To resolve this uncertainty, this work has been undertaken to study the spin fluctuations of five Ba(Fe$_{1-x}$Co$_x$)$_2$As$_2$ compositions varying in cobalt concentration from lightly-doped to nearly optimally-doped as well as representative samples of other, non-superconducting, transition metal substituted \bafeas compounds. The spin fluctuations of these samples, in their antiferromagnetically ordered and (where possible) superconducting states have been studied via triple-axis and time-of-flight inelastic neutron scattering, and definitively determine the importance of spin fluctuations for superconductivity in Ba(Fe$_{1-x}$Co$_x$)$_2$As$_2$