Indiana University-Purdue University Indianapolis (IUPUI) / This study contributes to a better working knowledge of the equipment being used in a well-established combustion lab. In particular, several constant-volume combustion properties (e.g., time ignition delay, flame propagation, and more) are examined to deduce any buoyancy effects between fuel and air mixtures and to develop a method aimed at minimizing such effects. This study was conducted on an apparatus designed to model the phenomena occurring within a single channel of a wave rotor combustor, which consists of a rotating cylindrical pre-chamber and a fixed rectangular main combustion chamber. Pressure sensors monitor the internal pressures within the both chambers at all times, and two slow-motion videography techniques visually capture combustion phenomena occurring within the main chamber. A new recirculation pump system has been implemented to mitigate stratification within the chamber and produce more precise, reliable results. The apparatus was used in several types of experiments that involved the combustion of various hydrocarbon fuels in the main chamber, including methane, 50%-50% methane-hydrogen, hydrogen, propane, and 46.4%-56.3% methane-argon. Additionally, combustion products created in the pre-chamber from a 1.1 equivalence ratio reaction between 50%-50% methane-hydrogen and air were utilized in the issuing pre-chamber jet for all hot jet ignition tests. In the first set of experiments, a spark plug ignition source was used to study how combustion events travel through the main chamber after different mixing methods were utilized – specifically no mixing, diffusive mixing, and pump circulation mixing. The study reaffirmed that stratification between fuel-air mixtures occurs in the main chamber through the presence of asymmetrical flame front propagation. Allowing time for mixing, however, resulted in more symmetric flame fronts, broader pressure peaks, and reduced combustion time in the channel. While 30 seconds of diffusion helped, it was found that 30 seconds of pumping (at a rate of 30 pumps per 10 seconds) was the most effective method at reducing stratification effects in the system. Next, stationary hot jet ignition experiments were conducted to compare the time between jet injection and main chamber combustion and the speed of the resulting shockwaves between cases with no mixing and 30 seconds of pump mixing. Results continued to show an improvement with the pump cases; ignition delay times were typically shorter, and shock speeds stayed around the same, if not increased slightly. These properties are vital when studying and developing wave rotor combustors, and therefore, reducing stratification (specifically by means of a recirculation system) should be considered a crucial step in laboratory models such as this one. Lastly, experiments between a fueled main chamber and rotating pre-chamber helped evaluate the leakage rate of the traversing hot jet ignition experimental setup paired with the new pump system. In its current form, major leaks are inevitable when attempting traversing jet experiments, especially with the pump’s suction action drawing sudden large plumes of outside air into the main chamber. To minimize leaks, gaps between the pre-chamber and main chamber should be reduced, and the contact surface between the two chambers should be more evenly distributed. Also, the pump system should only be operated as long as needed to evenly distribute the fuel-air mixture, which approximately happens when the main chamber’s total volume has been circulated through the system one time. Therefore, a new pump system with half of the original system’s volume was developed in order to decrease the pumping time and lower the risk of leaks.

Indiana University-Purdue University Indianapolis (IUPUI) / This document offers scholarly researchers, students and general readers a reliable, genealogically-based descriptive bibliography of all U.S. and British publications of Ray Bradbury's Fahrenheit 451 (1953). The driving force behind this thesis is the desire to preserve, catalog, describe and archive a work of literature that has stood the test of time and continues to be an influential milestone of American culture well into the twenty-first century.

Indiana University-Purdue University Indianapolis (IUPUI)

Indiana University-Purdue University Indianapolis (IUPUI) / On October 18, 1982, the Ronald McDonald House of Indiana (RMHI) opened near downtown Indianapolis on the campus of Indiana University Purdue University at Indianapolis (IUPUI), located within walking distance of the prestigious Riley Children's Hospital. The Ronald McDonald House (RMH) concept represented an almost perfect intersection between philanthropy and families in need. Creating the RMHI offered the opportunity for individuals, corporations, and benevolent organizations to come together and build a "home-away-from-home" for the families of sick children. When the RMH idea arrived in Indianapolis in the late 1970s, a group of collaborators representing the McDonald's corporation and restaurant owners, Riley Hospital, IUPUI, and the Indianapolis community banded together to make it a reality. On October 18, 1982, after nearly three years planning, fundraising, and construction, the RMHI's advocates and their supporters celebrated the successful opening of Indiana's only RMH. After this momentous occasion, the RMHI's board of directors and their community and corporate partners worked throughout the 1980s and 1990s to sustain, operate, and expand the home they created for the families of seriously ill children receiving treatment at Riley.

Indiana University-Purdue University Indianapolis (IUPUI) / This thesis will explore issues concerning cultural tourism investment and resident quality of life in the Midwestern city of Indianapolis, Indiana. It is important to understand from a cultural tourism perspective how further attempts to grow and invest in tourism will affect resident perception of quality of life and future cultural tourism investment. To achieve this goal, data from the 2012 Indianapolis Quality of Life survey was statistically analyzed to specifically examine how residents' perceived quality of life affects cultural tourism investment. This allows for the study of what city-service attributes (i.e. safety, attractions, transportation, et cetera) identify as potential indicators of whether residents' perception of quality of life affects cultural tourism investment and if there were any correlations between demographic factors of age, gender, ethnicity, and household income with the perception that investing in cultural events and attractions for tourists is good for residents. Results indicated that several key city-service attributes identify as potential indicators of whether residents' perception of quality of life in Indianapolis affects residents' perceptions that investing in cultural tourism for tourists is good for residents. In addition, several key city-service attributes identified as potential indicators of residents' perception of quality of life in Indianapolis excluding perceptions of cultural tourism investment. Finally, results indicated that demographic factors of gender, age, ethnicity, and income were not significant when it came to affecting the perception that investing in cultural events and attractions for tourists is good for residents.

Indiana University-Purdue University Indianapolis (IUPUI) / By definition, homelessness refers to general understanding of people without a home or a roof over their heads. As consequences of a number of factors, homelessness has become a serious problem especially in cities throughout the United States. Homeless people are usually most visible on the streets and in settings like shelters due to the fact that their presences and activities in public spaces are considered illegal or at least “unwanted” by city officials and by members of the public. In response to this issue, activists throughout the country have worked tiresly on behalf of homeless people to demand policy changes, an effort that resulted in the passage of the homeless bill of rights in three states, namely Connecticut, Rhode Island, and Illinois. As I discovered through my fieldwork, in Indiana, the homeless, themselves, are currently lobbying for passage of a similar measure. Locating my fieldwork on homelessness in Indianapolis in two sites, the Indianapolis Marion County Public Library (the Central Library) and the IUPUI Library, I examine the use of library buildings as alternative temporary shelters and spaces where the homeless can organize for political change. As an Indonesian ethnographer, I utilized an ethnographic approach, which helped me to reveal “Western values” and “American culture” as they play out in the context of homelessness. In this thesis, I show that there is a multi-sited configuration made up of issues, agents, institutions, and policy processes that converge in the context of the use of library buildings by the homeless. Finally, I conclude that public libraries and university libraries as well can play a more important role beyond their original functions by undertaking tangible actions, efforts, engagements, and interventions to act as allies to the homeless, who are among their most steadfast constituencies. By utilizing public university library facilities, the homeless are also finding their voices to call for justice, for better treatment, and for policies that can help ameliorate the hardship and disadvantages of homelessness.