8,888 research outputs found

    Wake flowfields for Jovian probe

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    The wake flow field developed by the Galileo probe as it enters the Jovian atmosphere was modeled. The wake produced by the probe is highly energetic, yielding both convective and radiative heat inputs to the base of the probe. A component mathematical model for the inviscid near and far wake, the viscous near and far wake, and near wake recirculation zone was developed. Equilibrium thermodynamics were used for both the ablation and atmospheric species. Flow fields for three entry conditions were calculated. The near viscous wave was found to exhibit a variable axial pressure distribution with the neck pressure approximately three times the base pressure. Peak wake flow field temperatures were found to be in proportion to forebody post shock temperatures

    Prayer and Protest: Bringing a Community Vision of Justice to a Labor Dispute

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    The United States Internal Revenue Code Section 341 and Mining Corporations

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    People Like Ourselves

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    The thesis writing here is an effort by the artist to identify his motives in creating, and his aims for the audience, and to communicate this to the reader in a clear and truthful manner. Section 1 focuses on introducing the ground of the artists’ thinking, discussing his ideas of the body and culture identity, and how they motivate his work. Section 2 goes into greater detail about the manner his thought process evolved through the course of a number of works. In Section 3, there is an ever sharper focus in the works towards the isolated and inscrutable individual. The theme that runs throughout is that, although it’s difficult if not impossible to fully communicate with another, the effort is worthwhile

    People Like Ourselves

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    The thesis writing here is an effort by the artist to identify his motives in creating, and his aims for the audience, and to communicate this to the reader in a clear and truthful manner. Section 1 focuses on introducing the ground of the artists’ thinking, discussing his ideas of the body and culture identity, and how they motivate his work. Section 2 goes into greater detail about the manner his thought process evolved through the course of a number of works. In Section 3, there is an ever sharper focus in the works towards the isolated and inscrutable individual. The theme that runs throughout is that, although it’s difficult if not impossible to fully communicate with another, the effort is worthwhile

    A Review and Outlook for the Removal of Radon-Generated Po-210 Surface Contamination

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    The next generation low-background detectors operating deep underground aim for unprecedented low levels of radioactive backgrounds. The deposition and presence of radon progeny on detector surfaces is an added source of energetic background events. In addition to limiting the detector material's radon exposure in order to reduce potential surface backgrounds, it is just as important to clean surfaces to remove inevitable contamination. Such studies of radon progeny removal have generally found that a form of etching is effective at removing some of the progeny (Bi and Pb), however more aggressive techniques, including electropolishing, have been shown to effectively remove the Po atoms. In the absence of an aggressive etch, a significant fraction of the Po atoms are believed to either remain behind within the surface or redeposit from the etching solution back onto the surface. We explore the chemical nature of the aqueous Po ions and the effect of the oxidation state of Po to maximize the Po ions remaining in the etching solution of contaminated Cu surfaces. We present a review of the previous studies of surface radon progeny removal and our findings on the role of oxidizing agents and a cell potential in the preparation of a clean etching technique.Comment: Proceedings of the Low Radioactivity Techniques (LRT) 2017, Seoul, South Korea, May 24-26, 201

    Brownian Dynamics of a Sphere Between Parallel Walls

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    We describe direct imaging measurements of a colloidal sphere's diffusion between two parallel surfaces. The dynamics of this deceptively simple hydrodynamically coupled system have proved difficult to analyze. Comparison with approximate formulations of a confined sphere's hydrodynamic mobility reveals good agreement with both a leading-order superposition approximation as well as a more general all-images stokeslet analysis.Comment: 4 pages, 3 figures, REVTeX with PostScript figure

    The moderating effect of brand orientation on inter-firm market orientation and performance

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    While prior research has shown that market and brand orientation are key contributors to successful business performance, research to date has not fully explored how inter firm collaboration for these two key orientations can enhance business performance. The purpose of the paper is to investigate the relationship between inter-firm market and performance; to test for the moderating role of brand orientation in that relationship. A total of 169 completed pairs of surveys were collected of small and medium enterprises operating internationally in a variety of industries in Switzerland. The results show that inter-firm market and brand orientation are two antecedents of marketing and financial performance. The impact of inter-firm market on marketing and financial performance is significant when the brand orientation is favorable. This study extends previous research by examining the moderating role of brand orientation on inter firm market orientation, which is important, especially for firms wanting to increase their brand reputation by entering into partnerships with other firms. Further research is indicated, to identify the key moderators of the driving force of inter-firm market in relation to business performance and the reason why maintaining a strong brand presence is important in the international marketplace
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