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The effect of pressure pulsation on diffusion combustion
27th International Symposium on Atmospheric and Ocean Optics, Atmospheric Physics, 2021 The paper presents the results of a study of diffusion combustion of gasoline in the presence of external pressure pulsations with small amplitude. It is found that external pressure pulsations lead to characteristic changes in the temperature field, which are expressed by an increase in the amplitude of the temperature pulsation for certain modes of ...
Agafontsev, Mikhail V. +3 more
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Pressure pulsations enhance penetration index in COPD
Drug Delivery and Translational Research, 2021This study was done in order to evaluate the effect of a novel pressure pulsation device (Pulsehaler™, Respinova Ltd., Israel) on the deposition pattern of inhaled aerosol in the lungs of COPD patients. Fifteen COPD patients were recruited to undergo spirometry and SPECT-CT lung scan following nebulization of radioactively labeled albuterol in saline ...
Noam, Gavriely +4 more
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Pressure Pulsation in Solid-Phase Fermentation
Applied Biochemistry and Biotechnology, 2002Inadequate dissipation of heat generated by biologic activities has prevented the use of solid-phase fermentation in large-scale applications. This study deals with the cooling effects of pressure pulsation on solid, porous beds. Pressure pulsation also enhances evaporation of medium moisture, which is also described.
Xiaomin, Yang +2 more
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Rheodynamic model of cardiac pressure pulsations
Mathematical Biosciences, 1999To analyse parametrically (in terms of the qualitative theory of dynamical systems) the mechanical influence of inertia, resistance (positive and negative), elasticity and other global properties of the heart-muscle on the left ventricular pressure, an active rheodynamic model based on the Newtons's principles is proposed. The equation of motion of the
V G, Petrov, S G, Nikolov
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Pressure Pulsations in Centrifugal Pumps
Journal of Vibration and Acoustics, 1992Pressure pulsations in centrifugal pumps are created by the wake flow from the impeller blade trailing edge and by large-scale turbulence and vortices generated by flow separation and flow recirculation at part load. The physical mechanisms causing pressure pulsations and the design parameters having an influence on the level of the pressure pulsations
J. F. Guelich, U. Bolleter
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