Results 211 to 220 of about 72,806 (265)
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1987
The principles that govern fluid motion in normal blood vessels can still be best approached by using the classic Poiseuille model. This law states that the ratio of the pressure gradient (PI - P2) to flow (Q) is a function of the tube dimensions and the viscosity (μ) of the moving fluid: $$\frac{{P1 - P2}} {Q} = \frac{{8\mu L}} {{\pi (r^4 )}} $$
Phillip Brun +2 more
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The principles that govern fluid motion in normal blood vessels can still be best approached by using the classic Poiseuille model. This law states that the ratio of the pressure gradient (PI - P2) to flow (Q) is a function of the tube dimensions and the viscosity (μ) of the moving fluid: $$\frac{{P1 - P2}} {Q} = \frac{{8\mu L}} {{\pi (r^4 )}} $$
Phillip Brun +2 more
openaire +1 more source
2004
In 1951, Loebenstein and Deitz [1] described an innovative gas adsorption technique that did not require the use of a vacuum. They adsorbed nitrogen out of a mixture of nitrogen and helium that was passed back and forth over the sample between two burettes by raising and lowering attached mercury columns.
S. Lowell +3 more
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In 1951, Loebenstein and Deitz [1] described an innovative gas adsorption technique that did not require the use of a vacuum. They adsorbed nitrogen out of a mixture of nitrogen and helium that was passed back and forth over the sample between two burettes by raising and lowering attached mercury columns.
S. Lowell +3 more
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Annual Technical Meeting, 1973
Abstract The new analysis technique of Annular Flow Dynamics is a simple, practical way to predict and control rheology and hydraulics in drilling fluid systems. It is based on field experience in the sloughing shale areas of Canada and on a recently developed method of calculating annular pressure losses with ...
H. Craig Willis +2 more
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Abstract The new analysis technique of Annular Flow Dynamics is a simple, practical way to predict and control rheology and hydraulics in drilling fluid systems. It is based on field experience in the sloughing shale areas of Canada and on a recently developed method of calculating annular pressure losses with ...
H. Craig Willis +2 more
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Polymer Science U.S.S.R., 1974
Abstract A dynamic flow birefringence theory is proposed for macromolecular solutions of arbitrary structure. Hydrodynamic interaction between macromolecular elements was examined by the Oseen method. It was shown that the dynamo-optical constant [n] is determined by the mechanical (via the rotary diffusion constant) and optical properties of the ...
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Abstract A dynamic flow birefringence theory is proposed for macromolecular solutions of arbitrary structure. Hydrodynamic interaction between macromolecular elements was examined by the Oseen method. It was shown that the dynamo-optical constant [n] is determined by the mechanical (via the rotary diffusion constant) and optical properties of the ...
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Flow dynamics through spinal needles
Anaesthesia, 1997We examined the flow pattern produced when liquid dye was actively injected into a fluid medium at various flows through five different commonly used spinal needles. At all flows, the Whitacre‐type needles produced a directional stream exiting at an angle from the longitudinal axis. At intermediate rates the stream developed tracks which disappeared at
M G, Serpell, W M, Gray
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2001
Transport models in the preceding chapters focused on contaminant, or solute, transport. We derived basic conservation laws that governed how the solutes were advected and dispersed throughout the medium, and we imposed relations that governed the kinetics of adsorption of those solutes. The subject of contaminant transport is just one aspect of porous
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Transport models in the preceding chapters focused on contaminant, or solute, transport. We derived basic conservation laws that governed how the solutes were advected and dispersed throughout the medium, and we imposed relations that governed the kinetics of adsorption of those solutes. The subject of contaminant transport is just one aspect of porous
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Droplet dynamics in rotating flows
Advances in Colloid and Interface Science, 2016This paper deals with investigations of droplet dynamics in rotating flows. In many previous studies droplet dynamics was analyzed in simple unidirectional flows. To fill this gap, the focus of this study is an overview on investigations of droplet dynamics in a complex rotating flow.
B, Maneshian +3 more
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2015
The subject of two- or multiphase flow has become increasingly important in a wide variety of engineering systems for their optimum design and safe operations. It is, however, by no means limited to today’s modern industrial technology, and multiphase flow phenomena which require better understandings.
Bahman Zohuri, Nima Fathi
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The subject of two- or multiphase flow has become increasingly important in a wide variety of engineering systems for their optimum design and safe operations. It is, however, by no means limited to today’s modern industrial technology, and multiphase flow phenomena which require better understandings.
Bahman Zohuri, Nima Fathi
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Fouling dynamics in suspension flows
The European Physical Journal E, 2002A particle suspension flowing in a channel in which fouling layers are allowed to form on the channel walls is investigated by numerical simulation. A two-dimensional phase diagram with at least four different behaviors is constructed. The fouling is modeled by attachment during collision with the deposits and by detachment caused by large enough ...
Shakib-Manesh, A. +4 more
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