Results 21 to 30 of about 54,520 (298)

Hydrodynamical Survey of First Overtone Cepheids [PDF]

, 2000
A hydrodynamical survey of the pulsational properties of first overtone Galactic Cepheids is presented. The goal of this study is to reproduce their observed light- and radial velocity curves.
Aikawa T., Antonello E., Antonello E., Antonello E., Beaulieu J. P., Buchler J. R., Dorfi E. A., Feuchtinger M. U., Feuchtinger M. U., Feuchtinger M. U., Feuchtinger M. U., Gehmeyr M., Hertzsprung E., J. Robert Buchler, Kienzle F., Kuhfuss R., Michael Feuchtinger, Poretti E., Schaller G., Udalski A., Wuchterl G., Yecko P. A., Zoltan Kollath   +22 more
core   +2 more sources

Effect of the Gap Matching Relation on the Pressure Pulsation Characteristics at Blade’s Surface of the Multiphase Pump

Machines, 2022
The pressure pulsation characteristics of the blade’s surface have an impact on the lifespan of the multiphase pump impeller. To explore the influence of the gap matching relation on the pressure pulsation characteristics at blade’s surface of the pump ...
Guangtai Shi, Zheyu Zhu, Binxin Wang, Haigang Wen   +3 more
doaj   +1 more source

Non-linear modelling of beat Cepheids: Resonant and non-resonant models [PDF]

, 2010
The phenomenon of double-periodic Cepheid pulsation is still poorly understood. Recently we rediscussed the problem of modelling the double-periodic pulsation with non-linear hydrocodes.
Moskalik, P., Smolec, R.
core   +1 more source

Intraocular Pressure Reduction Is Associated with Reduced Venous Pulsation Pressure

PLOS ONE, 2016
To explore whether alterations in intraocular pressure (IOP) affect vein pulsation properties using ophthalmodynamometric measures of vein pulsation pressure.Glaucoma patients had two retinal vein pulsation pressure (VPP) measurements from upper and lower hemiveins performed by ophthalmodynamometry at least 3 months apart.
Morgan, William H., House, Philip H., Hazelton, Martin L., Betz-Stablein, Brigid D., Chauhan, Balwantray C., Viswanathan, Ananth, Yu, Dao-Yi   +6 more
openaire   +5 more sources

Optimized Reduction in Draft Tube Pressure Pulsation for a Francis Turbine [PDF]

Journal of Applied Fluid Mechanics
As a core component of hydroelectric power generation, the stable and safe operation of the Francis turbine is very important for the operation of the project. Therefore, attention must be paid to the problem of pressure pulsation in the Francis turbine.
J. Lu, R. Tao
doaj   +1 more source

LES of additive and non-additive pulsatile flows in a model arterial stenosis [PDF]

, 2010
Transition of additive and non-additive pulsatile flows through a simple 3D model of arterial stenosis is investigated by using a large eddy simulation (LES) technique. We find in both the pulsatile cases that the interaction of the two shear layers, one
Fung YC, Giles Roditi, M. Mamun Molla, Manosh C. Paul, Pedley TJ, Pedley TJ   +5 more
core   +1 more source

On a mechanism for enhancing magnetic activity in tidally interacting binaries [PDF]

, 2002
We suggest a mechanism for enhancing magnetic activity in tidally interacting binaries. We suppose that the deviation of the primary star from spherical symmetry due to the tidal influence of the companion leads to stellar pulsation in its fundamental ...
Belvedere G., Biront D., Cowling T. G., Cowling T. G., de Medeiros J. R., Donati J. F., G. Belvedere, G. Javakhishvili, Glebocki R., Habets G. M. H. J., Hut P., Markey P., Piddington J. H., Roberts P. H., Rutten R. G. M., Savonije G. J., Schrijver C. J., Smeyers P., Spruit H. C., T. Zaqarashvili, Tayler R. J., Tayler R. J., Walen C., Wright G. A. E., Zahn J. P., Zahn J. P.   +25 more
core   +2 more sources

Radiation pressure and pulsation effects on the Roche lobe

, 2009
Several observational pieces of evidence indicate that specific evolutionary channels which involve Roche lobe overflow are not correctly accounted for by the classical Roche model. We generalize the concept of Roche lobe in the presence of extra forces (
A. Frankowski, A. Jorissen, Abbott, Alecian, Anderson, Arndt, Babel, Baschek, Bowen, Castor, de Ruyter, Djurasevic, Drechsel, Eggleton, Elitzur, Frankowski, Frankowski, Frankowski, Friend, Gail, Gayley, Glatzel, Gunn, Gustafsson, Hamann, Howarth, Howarth, Huang, Hui-Bon-Hoa, Jorgensen, Kudritzki, L. Siess, Lamers, Langer, Lemke, Maeder, Mastrodemos, Mastrodemos, Michaud, Michaud, Moffat, Mürset, Nugis, Pauldrach, Phillips, Puls, Rafert, Sandin, Sandin, Schröder, Schuerman, Soberman, Sytov, T. Dermine, Theuns, Theuns, Tout, Vanbeveren, Vanbeveren, Wachter, Willson, Zhou   +61 more
core   +1 more source

Large-Eddy simulation of pulsatile blood flow [PDF]

, 2009
Large-Eddy simulation (LES) is performed to study pulsatile blood flow through a 3D model of arterial stenosis. The model is chosen as a simple channel with a biological type stenosis formed on the top wall.
Despande, Fry, Frydrychowicz, Fung, Ghalichi, Giles Roditi, Jones, Lee, Liang, Lieber, Malek, Manosh C. Paul, Md. Mamun Molla, Mittal, Mittal, Pedley, Pedley, Piomelli, Scotti, Smagorinsky, Stonebridge, Sutera, Younis   +22 more
core   +1 more source

Investigation of Unsteady Pressure Pulsation in New Type Dishwasher Pump with Special Double Tongue Volute

Shock and Vibration, 2022
Through numerical simulations, this work analyzes the unsteady pressure pulsation characteristics in new type of dishwasher pump with double tongue volute and single tongue volute, under volute static and rotation conditions.
Jinfeng Zhang, Yilei Zhu, Yalin Li, Ping Huang, Hui Xu, Feng Zheng   +5 more
doaj   +1 more source