Investigation of the optical properties of silicon solar cell component materials

Normal incidence reflectance data and optical constants of silicon and germanium extrapolated to maximum and minimum limit

Investigation of the optical properties of silicon solar cell component materials Final report

Optical properties of silicon solar cell component materia

Research on the mechanism and kinetics of oxidation of silicon in air Semiannual report, 1 Dec. 1966 - 31 May 1967

Mechanism and kinetics of silicon oxidation in air-instrumentation for ellipsometry and use in determining refractive index and thickness of thin oxide films on silico

Research on the mechanism and kinetics of oxidation of silicon in air Semiannual report, 1 Dec. 1967 - 31 May 1968

Ellipsometric method for measuring optical parameters of substrate and oxidation surface layer thickness on silico

Research on the Mechanism and Kinetics of Oxidation of Silicon in Air Semiannual Report, 1 Jun. - 30 Nov. 1966

Ellipsometric studies on mechanism and kinetics of thin oxide films on silicon in ai

Research on the Mechanism and Kinetics of Oxidation of Silicon in Air Second Semiannual Report, 1 Dec. 1965 - 31 May 1966

Ellipsometer studies of oxide thin film growth on silicon in ai

Design and analysis of a hybrid guideway heating system for Morgantown Personal Rapid Transit

The Morgantown Personal Rapid Transit (M-PRT) system is a comfortable conveyance for travel in Morgantown, WV. One of its operating concerns is the increasing cost of heat to the guideway during winter. As the vehicles cannot run safely during snow, the system includes a guideway heating system to melt the ice from the guideway. To reduce the use of expensive natural gas, an interest has been expressed to define a hybrid heating system using an alternate fuel supply. Solid Oxide Fuel Cell (SOFC) was incorporated in the hybrid heating system. This hybrid heating system was designed, and then a detailed analysis was performed to ascertain the performance parameters like heat produced, thermal efficiency, cost of the system and the emissions involved. This high temperature fuel cell releases large amounts of usable heat in the form of exhaust gases. The exhaust gases are deprived of any undesired emissions that pollute the atmosphere. A USDOE EPSCoR WV State Implementation Award conducted by Advance Power Electricity Research Center (APERC) at West Virginia University provided support for conducting this research

Moving from Interprofessional Disarticulation to Transformative Dialogue and Action: Examining a Transdisciplinary Process to Address Equitable Access to High Quality Maternity Care in North America

Maternity providers in North America are in conflict about birth place, debating issues related to safety, autonomy, and quality of care. Very little is known about how birth place interacts with experience and outcomes of maternity care, or about how to resolve these differences among provider disciplines within established health care systems. A multi-stakeholder group of leaders convened at a series of Home Birth Summits in the United States to delineate a Common Ground Agenda, including nine priority areas for action and research. The aim of this doctoral study was to examine how and why this transdisciplinary process generated new evidence and tools that can improve maternity services. Methods I synthesized the results of four original research studies using a range of methodologies as appropriate to the study topic. In the Canadian Birth Place Study, I examine mixed methods data on provider attitudes to place of birth. In the Changing Childbirth in British Colombia (BC) and Giving Voice to Mothers studies, psychometric analysis cross-sectional survey data led to development of four new person-centered measures of experience of maternity care. In the Access and Integration Maternity Care Mapping Study, a Delphi study created a scoring system (MISS) to assess midwifery integration. Correlation and regression analyses elicit linkages between integration and key maternal-newborn outcomes. Finally, I triangulated results of these studies within the Taming Wicked Problems Framework, to elicit an underlying and contributory factor for effective transdisciplinary action. Results Among maternity care providers (n=825), 84% of variance in attitudes to home birth was attributable to provider type alone. Women from diverse backgrounds (n=2051, 3586 pregnancies) reported reduced autonomy and respect when cared for by physicians and when 9 giving birth in institutional settings. Among women in the United States (US) (n=2700), disparities in experiences of care, including mistreatment, links to race, socioeconomic status, place of birth and type of provider. U.S. states with higher midwifery integration and greater access to home birth reported significantly fewer adverse maternal-newborn outcomes and significantly higher rates of physiologic birth. Discussion The participatory approach and synthesis of outcomes of these studies was essential to understand and address inequities in experience and access to quality maternity health services in the US. Person-centered care emerged as a hidden common value that informed a transdisciplinary research process, and community-responsive knowledge translation outputs. Conclusion Increasing knowledge among all types of providers about quality and safety of birth place, and person-centered care, could improve outcomes across birth settings. The Summit process of transdisciplinary engagement reduced interprofessional conflict and facilitated cocreation of evidence and tools that improve quality, safety, and accountability in North American maternity care

Numerical Investigation of Scaling Effects of a Ramjet-Powered Projectile

Ramjet flowpath miniaturization is a potentially useful technology for integration into munitions to increase range, accuracy, and lethality. The emphasis of this effort is to numerically characterize the performance of a miniature hydrogen-fueled and ethylene-fueled ramjet flowpath during Mach 3 and Mach 3.5 sea-level flight. The effect of geometric scale on ramjet performance is evaluated using high-fidelity RANS CFD models. Sensitivity to nonequilibrium laminar and turbulence-limited chemistry, and transitional turbulence treatments are evaluated. The physical sources of small scale performance limitations are identified for both fuel types. Finally, flowpath integration for small-scale applications is briefly addressed