2,505 research outputs found

    Computational fluid mechanics utilizing the variational principle of modeling damping seals

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    A computational fluid dynamics code for application to traditional incompressible flow problems has been developed. The method is actually a slight compressibility approach which takes advantage of the bulk modulus and finite sound speed of all real fluids. The finite element numerical analog uses a dynamic differencing scheme based, in part, on a variational principle for computational fluid dynamics. The code was developed in order to study the feasibility of damping seals for high speed turbomachinery. Preliminary seal analyses have been performed

    Computational fluid mechanics utilizing the variational principle of modeling damping seals

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    An analysis for modeling damping seals for use in Space Shuttle main engine turbomachinery is being produced. Development of a computational fluid mechanics code for turbulent, incompressible flow is required

    On Krebes' tangle

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    A genus-1 tangle G is an arc properly embedded in a standardly embedded solid torus S in the 3-sphere. We say that a genus-1 tangle embeds in a knot K in S^3 if the tangle can be completed by adding an arc exterior to the solid torus to form the knot K. We call K a closure of G. An obstruction to embedding a genus-1 tangle G in a knot is given by torsion in the homology of branched covers of S branched over G. We examine a particular example A of a genus-1 tangle, given by Krebes, and consider its two double-branched covers. Using this homological obstruction, we show that any closure of A obtained via an arc which passes through the hole of S an odd number of times must have determinant divisible by three. A resulting corollary is that if A embeds in the unknot, then the arc which completes A to the unknot must pass through the hole of S an even number of times.Comment: 7 pages, 7 figures. v2: Minor changes made, typos corrected. v3: Final version, accepted for publicatio

    Grandma\u27s Tiny House\u27 Wins 2018 CELI Read Aloud Book Award

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    Teachers collaborate to pick winner of children\u27s book awar

    UM Creates Department of Higher Education

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    Interim chair Neal Hutchens plans to launch a new minor and increase campus partnership

    Streets Endow Scholarship to Honor Longtime UM History Professor

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    Education fund named after Harry P. Owens, professor emeritus and Civil War schola

    Nobel Laureate to Present Benefits of Early Childhood Education

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    James Heckman to explain why investing in early learning is good for state economy at Jackson even

    Developing Adult Faith Formation at Our Lady of Guadalupe Parish, Helotes

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    My project will be to offer assistance to the staff of Our Lady of Guadalupe Parish in Helotes, Texas, in the area of adult faith formation. This will be a two-part project over the course of a nine-month period. The first part will be to examine various Scripture Study programs, select one as a test, offer it in the Fall of 2002, and evaluate it for possible continuation or rejection. The second element of this project will be to assess the needs, desires and availability of adults regarding other aspects of adult faith formation. Our Lady of Guadalupe is a rapidly growing parish and it has been several years since the parishioners were last surveyed. An assessment of adult faith formation needs will be conducted by a survey in the Spring of 2003. Documents of the Second Vatican Council and more recently, from the United States Bishops have repeatedly stressed the importance of adult faith formation. In line with these guidelines, Our Lady of Guadalupe plans to hire an Adult Faith Formation Coordinator as soon as possible. It is my desire that my project will be of assistance to this new staff member for the purposes of future plannin
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