منابع مشابه
Distribution in flowing reaction-diffusion systems.
A power-law distribution is found in the density profile of reacting systems A+B-->C+D and 2A-->2C under a flow in two and three dimensions. Different densities of reactants A and B are fixed at both ends. For the reaction A+B , the concentration of reactants asymptotically decay in space as x-1/2 and x-3/4 in two dimensions and three dimensions, respectively. For 2A , it decays as log(x)/x in ...
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The coagulation pathway of blood is an ancient mechanism to stop leaks of fluid from an organism. At sites of damaged vascular endothelium, platelets and neutrophils are captured from the flow stream while tissue factor on the wall can bind factor VIIa to initiate a cascade of coagulation reactions on cellular surfaces, resulting in the conversion of prothrombin to thrombin. The thrombin cleave...
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Hematocrit and red cell size are important factors for the transport of blood platelets toward subendothelium in flowing blood. We report that red cell deformability also influences platelet transport. Red cell deformability was estimated with Couette-flow viscosimetry at a shear rate of 130 s-1 and expressed as a 'T' factor--a dimensionless parameter relating the relative viscosity and the hem...
متن کاملCavitation in a flowing liquid.
In this letter, I am going to propose that the cavitation threshold in a flowing liquid could be associated with the maximum tension that the fluid can sustain before undergoing cohesive fracture at a point. My criterion is not isotropic; I am thinking that a liquid will break if the tension in one direction exceeds a threshold, independent of the value of the other principal stresses. The othe...
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We use Stokesian Dynamics simulations to study the microscopic motion of particles suspended in fluids passing through porous media. We construct model porous media with fixed spherical particles, and allow mobile ones to move through this fixed bed under the action of an ambient velocity field. We first consider the pore scale motion of individual suspended particles at pore junctions. The rel...
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ژورنال
عنوان ژورنال: Hydrobiologia
سال: 1970
ISSN: 0018-8158,1573-5117
DOI: 10.1007/bf00143299