The Experts below are selected from a list of 113178 Experts worldwide ranked by ideXlab platform
Yikang Pu - One of the best experts on this subject based on the ideXlab platform.
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influence of operating pressure on surface dielectric barrier discharge plasma aerodynamic actuation characteristics
Applied Physics Letters, 2008Co-Authors: Yun Wu, Yinghong Li, Huimin Song, Yikang PuAbstract:This letter reports an experimental study of surface dielectric barrier discharge plasma aerodynamic actuation characteristics’ dependence on operating pressure. As the pressure decreases, the N2(CПu3) rotational temperature decreases, while its vibrational temperature decreases initially and then increases. In addition, the discharge mode changes from a filamentary type to a glow type at 45Torr. In the filamentary mode, the electron density decreases with pressure, while the electron temperature remains almost unchanged. In the glow mode, however, both the electron density and the electron temperature increase while the pressure decreases. The Induced Velocity shows a maximum value at 445Torr.
Stephen P Williams - One of the best experts on this subject based on the ideXlab platform.
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quantification of cellular properties from external fields and resulting Induced Velocity cellular hydrodynamic diameter
Biotechnology and Bioengineering, 1999Co-Authors: Jeffrey J Chalmers, Seungjoo Haam, Yang Zhao, Kara E Mccloskey, Lee R Moore, Maciej Zborowski, Stephen P WilliamsAbstract:An experimental technique is discussed in which the size distribution of a population of cells is de- termined by calculating each cell's settling Velocity. The settling Velocity is determined from microscopically ob- tained images which were recorded on SVHS tape. These images are then computer imaged and processed, and the cell's location and Velocity are determined using a computer algorithm referred to as cell tracking velocim- etry (CTV). Experimental data is presented comparing the distribution of human lymphocytes and a human breast cancer cell line, MCF-7, determined using a Coulter counter and the CTV approach. © 1999 John Wiley & Sons, Inc. Biotechnol Bioeng 64: 509-518, 1999.
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quantification of cellular properties from external fields and resulting Induced Velocity cellular hydrodynamic diameter
Biotechnology and Bioengineering, 1999Co-Authors: Jeffrey J Chalmers, Seungjoo Haam, Yang Zhao, Kara E Mccloskey, Lee R Moore, Maciej Zborowski, Stephen P WilliamsAbstract:An experimental technique is discussed in which the size distribution of a population of cells is de- termined by calculating each cell's settling Velocity. The settling Velocity is determined from microscopically ob- tained images which were recorded on SVHS tape. These images are then computer imaged and processed, and the cell's location and Velocity are determined using a computer algorithm referred to as cell tracking velocim- etry (CTV). Experimental data is presented comparing the distribution of human lymphocytes and a human breast cancer cell line, MCF-7, determined using a Coulter counter and the CTV approach. © 1999 John Wiley & Sons, Inc. Biotechnol Bioeng 64: 509-518, 1999.
Jeffrey J Chalmers - One of the best experts on this subject based on the ideXlab platform.
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quantification of cellular properties from external fields and resulting Induced Velocity cellular hydrodynamic diameter
Biotechnology and Bioengineering, 1999Co-Authors: Jeffrey J Chalmers, Seungjoo Haam, Yang Zhao, Kara E Mccloskey, Lee R Moore, Maciej Zborowski, Stephen P WilliamsAbstract:An experimental technique is discussed in which the size distribution of a population of cells is de- termined by calculating each cell's settling Velocity. The settling Velocity is determined from microscopically ob- tained images which were recorded on SVHS tape. These images are then computer imaged and processed, and the cell's location and Velocity are determined using a computer algorithm referred to as cell tracking velocim- etry (CTV). Experimental data is presented comparing the distribution of human lymphocytes and a human breast cancer cell line, MCF-7, determined using a Coulter counter and the CTV approach. © 1999 John Wiley & Sons, Inc. Biotechnol Bioeng 64: 509-518, 1999.
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quantification of cellular properties from external fields and resulting Induced Velocity magnetic susceptibility
Biotechnology and Bioengineering, 1999Co-Authors: Jeffrey J Chalmers, Seungjoo Haam, Yang Zhao, Kara E Mccloskey, Lee R Moore, Maciej Zborowski, Philip Stephen WilliamsAbstract:An experimental technique is discussed in which the magnetic susceptibility of immunomagnetically labeled cells can be determined on a cell-by-cell basis. This technique is based on determining the magnetically Induced Velocity that an immunomagnetically labeled cell has in a well-defined magnetic energy gradient. This Velocity is determined through the use of video recordings of microscopic images of cells moving in the magnetic energy gradient. These video images are then computer digitized and processed using a computer algorithm, cell tracking velocimetry, which allows larger numbers (>10(3)) of cells to be analyzed.
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quantification of cellular properties from external fields and resulting Induced Velocity cellular hydrodynamic diameter
Biotechnology and Bioengineering, 1999Co-Authors: Jeffrey J Chalmers, Seungjoo Haam, Yang Zhao, Kara E Mccloskey, Lee R Moore, Maciej Zborowski, Stephen P WilliamsAbstract:An experimental technique is discussed in which the size distribution of a population of cells is de- termined by calculating each cell's settling Velocity. The settling Velocity is determined from microscopically ob- tained images which were recorded on SVHS tape. These images are then computer imaged and processed, and the cell's location and Velocity are determined using a computer algorithm referred to as cell tracking velocim- etry (CTV). Experimental data is presented comparing the distribution of human lymphocytes and a human breast cancer cell line, MCF-7, determined using a Coulter counter and the CTV approach. © 1999 John Wiley & Sons, Inc. Biotechnol Bioeng 64: 509-518, 1999.
Valery Okulov - One of the best experts on this subject based on the ideXlab platform.
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the contribution of kawada to the analytical solution for the Velocity Induced by a helical vortex filament and modern applications of helical vortices
International Conference on Mathematical Analysis of Continuum Mechanics and Industrial Applications, 2017Co-Authors: Yasuhide Fukumoto, Valery Okulov, D H WoodAbstract:Currently, the analytical form of the Velocity field Induced by a helical vortex filament is well known as Hardin’s solution (1982). But essentially the same result had been obtained by a Japanese scientist Sandi Kawada, which predates Hardin by as long as 46 years. Kawada (1936) provided a comprehensive treatment of deriving the Induced Velocity by helical vortices with a view to applying it to the propeller theory. This paper recollects Kawada’s contribution, together with his life devoted to lead the Japanese aeronautical engineering in the time of its dawning.
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self Induced motion and asymptotic expansion of the Velocity field in the vicinity of a helical vortex filament
Physics of Fluids, 1998Co-Authors: P A Kuibin, Valery OkulovAbstract:A derivation of an expression for the self-Induced Velocity of a helical vortex filament with moderate and small pitch is presented for the cases of an infinite space as well as a space bounded by a cylindrical tube. This result supplements the known Kelvin’s formula for helix with large pitch in an infinite space.
Subrata Roy - One of the best experts on this subject based on the ideXlab platform.
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bulk flow modification with horseshoe and serpentine plasma actuators
Journal of Physics D, 2009Co-Authors: Subrata Roy, Chincheng WangAbstract:Two different control devices are introduced to modify the boundary layer thickness by plasma Induced Velocity in the low speed region. These horseshoe and serpentine shaped actuators are surface compliant and have a significant three-dimensional influence on neighbouring flows. A numerical investigation of the quiescent and flow condition demonstrates active electrodynamic actuation of fluid in all three principal (streamwise, crosswise and surface normal) directions altering the boundary layer thickness. Based on the powering scheme of electrodes, these actuators not only induce flow attachment to the work surface but can also extract momentum from an upstream flow injecting it into the bulk fluid. Such designs could be useful for tripping the flow as well as for separation control as needed.
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force approximation for a plasma actuator operating in atmospheric air
Journal of Applied Physics, 2008Co-Authors: Kunwar Pal Singh, Subrata RoyAbstract:A plasma actuator has been studied using a self-consistent multibody system of quiescent air, plasma, and dielectric. Equations governing the motion of charged and neutral species have been solved with Poisson’s equation. Based on first principles analysis, a functional relationship between electrodynamic force and electrical and physical control parameters has been approximated and numerically tested for air. The magnitude of approximated force increases with the fourth power of the amplitude of rf potential. Thus, the Induced fluid Velocity also increases. The Induced Velocity shows momentum injection very close to the actuator surface. There is, however, a very small increase in the Induced Velocity with the forcing frequency. For the specific range of operational parameters considered, the proposed force relation may help speed up the plasma actuator design process.
