44,690 research outputs found

    Fluorinated esters of polycarboxylic acids

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    Fluorine containing esters of polycarboxylic acids are discussed. The use of these esters as extreme temperature lubricants and base fluids for greases is investigated

    Development of lubricating oils suitable for use with liquid oxidizers Quarterly progress report, 1 Jun. - 31 Aug. 1970

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    Investigating ester and alkyl compounds as lubricating oils for use with liquid oxidizer

    Inversion positivity and the sharp Hardy-Littlewood-Sobolev inequality

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    We give a new proof of certain cases of the sharp HLS inequality. Instead of symmetric decreasing rearrangement it uses the reflection positivity of inversions in spheres. In doing this we extend a characterization of the minimizing functions due to Li and Zhu.Comment: 15 pages; references added and minor change

    Separation of gas from liquid in a two-phase flow system

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    Separation system causes jets which leave two-phase nozzles to impinge on each other, so that liquid from jets tends to coalesce in center of combined jet streams while gas phase is forced to outer periphery. Thus, because liquid coalescence is achieved without resort to separation with solid surfaces, cycle efficiency is improved

    Norms of quantum Gaussian multi-mode channels

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    We compute the SpSp\mathcal S^p \to \mathcal S^p norm of a general Gaussian gauge-covariant multi-mode channel for any 1p<1\leq p<\infty, where Sp\mathcal S^p is a Schatten space. As a consequence, we verify the Gaussian optimizer conjecture and the multiplicativity conjecture in these cases.Comment: 9 pages; minor changes; to appear in J. Math. Phy

    Applications of a laser velocimeter in the Langley 4- by 7-meter tunnel

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    Applications of a laser velocimeter in the Langley 4 by 7 meter wind tunnel are discussed. The system configuration is described. The data acquisition, the laser velocimeter traversing, and the particle generating systems are discussed. Flow distribution and rotor wake applications are discussed
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