307 research outputs found

    High Speed Flow Control Using Microwave Energy Deposition

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    In recent years a variety of beamed energy deposition techniques have been investigated for flow control in high speed flows. Among these, microwave energy deposition has been demonstrated experimentally to achieve significant drag reduction for blunt body flows. A gas dynamic model for microwave energy deposition in air is developed using 23 species and 238 reactions. The model is applied to the simulation of microwave energy deposition in supersonic flow past a cylinder

    Giant oscillations of the current in a dirty 2D electron system flowing perpendicular to a lateral barrier under magnetic field

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    The charge transport in a dirty 2-dimensional electron system biased in the presence of a lateral potential barrier under magnetic field is theoretically studied. The quantum tunneling across the barrier provides the quantum interference of the edge states localized on its both sides that results in giant oscillations of the charge current flowing perpendicular to the lateral junction. Our theoretical analysis is in a good agreement with the experimental observations presented in Ref.8. In particular, positions of the conductance maxima coincide with the Landau levels while the conductance itself is essentially suppressed even at the energies at which the resonant tunneling occurs and hence these puzzling observations can be resolved without taking into account the electron-electron interaction.Comment: 6 pages, 4 figure

    Influence of the drug Detralex on calcium ion-dependent smooth muscle contractility, function of an endothelium and aggregation of thrombocytes in the conditions of experimental modeling of endothelial dysfunction

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    A venotonic effect was investigated after week administration of drug inside on model of the endoteliumdependent smooth muscle response to increased calcium ion isolated portal vein of rats. In model of endothelial dysfunction rising of sensitivity to the contractile response to Сa2+ the isolated segment of a portal vein after use of the drug Detralex of 500 mg/kg per day, and also elongation of AT and decrease of coefficient of endothelial dysfunction on a background the course reception of the investigated preparatio

    Evaluation of pharmacological correction of L-NAME-induced endothelial dysfunction, platelet aggregation and venous tone with diosmin detralex 1000 mg

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    Chronic venous diseases are one of the urgent problems of modern medicine. Recent studies have shown high significance of endothelial dysfunction (ED) and oxidative stress in their pathogenesis. For the correction of the occurring changes, drugs of the flavonoid group, particularly diosmin and hesperidin, are currently use
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