3,649 research outputs found

    Letter from J.D. Sharp to Stephen Patterson, dated May 1, 1863

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    This letter was written to Stephen Patterson from a friend, J.D. Sharp, on May 1, 1863. The letter discusses mutual acquaintances and daily life.https://corescholar.libraries.wright.edu/special_ms236_correspond/1045/thumbnail.jp

    Letter from J.D. Sharp to Stephen Patterson, dated March 6, 1863

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    This letter was written by J.D. Sharp on March 6, 1863 to Stephen Patterson. In the letter he talks about his new post in Nashville and includes details about daily life.https://corescholar.libraries.wright.edu/special_ms236_correspond/1043/thumbnail.jp

    English folk songs from the southern Appalachians : comprising two hundred and seventy-four songs and ballads with nine hundred and sixty-eight tunes, including thirty-nine tunes contributed by Olive Dame Campbell. Volume II

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    A collection of folk songs gathered by Cecil Sharp and Olive Campbell, and edited by Maud Karples, from the Southern Appalachian Mountains. Volume two contains 135 songs, 5 hymns, 27 nursery songs, 15 jigs, and 20 play-party games.Herbert Halpert Collection. -- Includes index. -- First edition, "by Olive Dame Campbell and Cecil J. Sharp," published in 1917.Includes bibliographical references (p. 402-405)

    Constellations of identity: place-ma(r)king beyond heritage

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    This paper will critically consider the different ways in which history and belonging have been treated in artworks situated in the Citadel development in Ayr on the West coast of Scotland. It will focus upon one artwork, Constellation by Stephen Hurrel, as an alternative to the more conventional landscapes of heritage which are adjacent, to examine the relationship between personal history and place history and argue the primacy of participatory process in the creation of place and any artwork therein. Through his artwork, Hurrel has attempted to adopt a material process through which place can be created performatively but, in part due to its non-representational form, proves problematic, aesthetically and longitudinally, in wholly engaging the community. The paper will suggest that through variants of ‘new genre public art’ such as this, personal and place histories can be actively re-created through the redevelopment of contemporary urban landscapes but also highlight the complexities and indeterminacies involved in the relationship between artwork, people and place

    Blade Sharpness and its Effect on the Testing of Body Armours

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    Factors such as edge sharpness and tip sharpness have been identified by Horsfall,1 as keyvariables in the testing of stab and slash resistant armours. This paper evaluates the influenceof blade sharpness on the mechanics of penetration and its relationship with a variety ofmaterials used for body armour systems. The differences in performance between blunt andsharp blades are compared by dynamic tests using an instrumented drop tower, measuringpeak loads and energy to penetration. Variance in the initial impact forces required topenetrate body armour between blunt and sharp blades is shown. However, the total energyto penetration for both sharp and blunt knives was found to be similar for a specific bodyarmour system. Dynamic tests were also used to evaluate the effect of wear on bladeperformance by the comparison of the initial loads for puncture and depth of penetration onaramid and metallic armour systems. The effect of sharpness on the reproducibility of testresults is also investigated and discussed. Various test methods are described for themeasurement of sharpness for both stab and slash and compared. The recent development ofa new non-destructive proof test method to measure tip and edge sharpness is also described

    Functionally distinct kinesin-13 family members cooperate to regulate microtubule dynamics during interphase

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    Regulation of microtubule polymerization and depolymerization is required for proper cell development. Here, we report that two proteins of the Drosophila melanogaster kinesin-13 family, KLP10A and KLP59C, cooperate to drive microtubule depolymerization in interphase cells. Analyses of microtubule dynamics in S2 cells depleted of these proteins indicate that both proteins stimulate depolymerization, but alter distinct parameters of dynamic instability; KLP10A stimulates catastrophe (a switch from growth to shrinkage) whereas KLP59C suppresses rescue (a switch from shrinkage to growth). Moreover, immunofluorescence and live analyses of cells expressing tagged kinesins reveal that KLP10A and KLP59C target to polymerizing and depolymerizing microtubule plus ends, respectively. Our data also suggest that KLP10A is deposited on microtubules by the plus-end tracking protein, EB1. Our findings support a model in which these two members of the kinesin-13 family divide the labour of microtubule depolymerization.</p

    Dns Of Compressible Turbulent Boundary Layer Around A Sharp Cone

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    Direct numerical simulation of the turbulent boundary layer over a sharp cone with 20 degrees cone angle (or 10 degrees half-cone angle) is performed by using the mixed seventh-order up-wind biased finite difference scheme and sixth-order central difference scheme. The free stream Mach number is 0.7 and free stream unit Reynolds number is 250000/inch. The characteristics of transition and turbulence of the sharp cone boundary layer are compared with those of the flat plate boundary layer. Statistics of fully developed turbulent flow agree well with the experimental and theoretical data for the turbulent flat-plate boundary layer flow. The near wall streak-like structure is shown and the average space between streaks (normalized by the local wall unit) keeps approximately invariable at different streamwise locations. The turbulent energy equation in the cylindrical coordinate is given and turbulent energy budget is studied. The computed results show that the effect of circumferential curvature on turbulence characteristics is not obvious

    Sharp characters of finite groups

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    AbstractIf χ is a virtual (generalized) character of a finite group G, with n=χ and L={χ(g)|g∈G, g≠1 {χ(g)¦gϵG, g ≠ 1}, then ¦G¦ dividesfL(n), where fL(x) is the monic polynomial of least degree having L as its set of roots. (This generalises a result of the second author for permutation characters.) We say that the pair ((G,χ)) is L-sharp if ¦G¦=fL(n). We characterise the L-sharp pairs for various sets L, sometimes under additional hypotheses, and give a number of examples
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