Program to develop sprayed, plastically deformable compressor shroud seal materials

A study of fundamental rub behavior for 10 dense, sprayed materials and eight current compressor clearance materials was conducted. A literature survey of a wide variety of metallurgical and thermophysical properties was conducted and correlated to rub behavior. Based on the results, the most promising dense rub material was Cu-9A1. Additional studies on the effects of porosity, incursion rate, blade solidity, and ambient temperature were carried out on aluminum bronze (Cu-9Al-1Fe) with and without a 515B Feltmetal underlayer. A further development effort was conducted to assess the property requirements of a porous, aluminum bronze, seal material. Strength, thermal cycle capabilities, erosion and oxidation resistance, machinability, and abradability at several porosity levels were examined

Through a Pedagogy of Belonging: Creating Cross-Cultural Bridges in Doctoral Programs

In this article, a student (Jessica) and professor (Julie) with cross-cultural characteristics—such as race, various identities, power dynamics, and backgrounds—offer a thesis that pedagogies of belonging, or educational strategies meant to foster a sense of belonging, that start in the classroom can create cross-cultural bridges that endure throughout doctoral study, and enrich the lives of both teacher and student. We begin with our personal stories: a Ph.D. student who is Asian American, cisgender and heterosexual, an immigrant, and a transracial adoptee raised by white parents; and a professor who is white, LGBTQ, and raised by biological parents of the same race. We each identify a parallel experience in education where a sense of belonging was borne of a cross-cultural interaction, and where key, positive academic outcomes resulted. The article then reflects on the importance of finding a sense of belonging in higher education, and the ways in which a pedagogy of belonging—an approach to teaching that places emphasis on every student being and feeling like a valuable, integral part of the classroom community—can help create cross-cultural bridges between faculty mentors and doctoral students. We conclude by explaining how to deploy a pedagogy of belonging in the classroom and beyond.Educatio

Radar studies of arctic ice and development of a real-time Arctic ice type identification system

Studies were conducted to develop a real-time Arctic ice type identification system. Data obtained by NASA Mission 126, conducted at Pt. Barrow, Alaska (Site 93) in April 1970 was analyzed in detail to more clearly define the major mechanisms at work affecting the radar energy illuminating a terrain cell of sea ice. General techniques for reduction of the scatterometer data to a form suitable for application of ice type decision criteria were investigated, and the electronic circuit requirements for implementation of these techniques were determined. Also, consideration of circuit requirements are extended to include the electronics necessary for analog programming of ice type decision algorithms. After completing the basic circuit designs a laboratory model was constructed and a preliminary evaluation performed. Several system modifications for improved performance are suggested. (Modified author abstract

College of occupational therapists: Position paper on the way ahead for research, education and practice in mental health

The future of occupational therapy in mental health has been a topic of reflection and debate. The Education and Research Board (now the Education and Practice Board) of the College of Occupational Therapists created a Working Group to develop a position paper on the way ahead for research, education and practice in mental health. Following consultation, the Working Group reviewed literature, examined current research and surveyed practitioners, managers and educators. From these findings, recommendations have been made which will lead to a firmer evidence base for the practice of occupational therapy in mental health, leading to a more effective use of the expertise of occupational therapists and an improved service for users

Insulation for cryogenic tanks has reduced thickness and weight

Dual seal insulation, consisting of an inner layer of sealed-cell Mylar honeycomb core and an outer helium purge channel of fiber glass reinforced phenolic honeycomb core, is used as a thin, lightweight insulation for external surfaces of cryogenic-propellant tanks

On the development of an interactive resource information management system for analysis and display of spatiotemporal data

The recent availability of timely synoptic earth imagery from the Earth Resources Technology Satellites (ERTS) provides a wealth of information for the monitoring and management of vital natural resources. Formal language definitions and syntax interpretation algorithms were adapted to provide a flexible, computer information system for the maintenance of resource interpretation of imagery. These techniques are incorporated, together with image analysis functions, into an Interactive Resource Information Management and Analysis System, IRIMAS, which is implemented on a Texas Instruments 980A minicomputer system augmented with a dynamic color display for image presentation. A demonstration of system usage and recommendations for further system development are also included

Glass Transition Phenomena Semiannual Status Report

Multiple glass transitions, heat capacities, and equation of state properties of polymer system

Personalized Medicine in Chronic Disease Management.

Chronic diseases are persistent medical conditions which affect half of all adults in the United States. The nature of these long-term chronic conditions present monitoring and treatment challenges to practicing clinicians and medical researchers: (1) how to use information learned about each patient's disease characteristics over time to tailor monitoring and treatment decisions, (2) how to make sequential decisions when each decision has strong implications for future decisions, and (3) how to incentivize adherence to prescribed medications. By combining operations research with the principles of personalized medicine, this work develops novel mathematical models to answer high impact clinical questions faced when managing patients with chronic conditions. We begin our research by understanding how information about a single patient can be used to personalize the patient's forecasted disease dynamics and likelihood of disease progression. Next, we consider how models of heterogeneity in disease characteristics and patient behavior can be embedded within an optimization framework to design individualized treatment plans. Finally, we develop a model for copayment restructuring to improve patient adherence to individualized treatment plans.PhDIndustrial and Operations EngineeringUniversity of Michigan, Horace H. Rackham School of Graduate Studieshttp://deepblue.lib.umich.edu/bitstream/2027.42/111447/1/schellg_1.pd

Monitoring vegetation conditions from LANDSAT for use in range management

A summary of the LANDSAT Great Plains Corridor projects and the principal results are presented. Emphasis is given to the use of satellite acquired phenological data for range management and agri-business activities. A convenient method of reducing LANDSAT MSS data to provide quantitative estimates of green biomass on rangelands in the Great Plains is explained. Suggestions for the use of this approach for evaluating range feed conditions are presented. A LANDSAT Follow-on project has been initiated which will employ the green biomass estimation method in a quasi-operational monitoring of range readiness and range feed conditions on a regional scale