Results 251 to 260 of about 655,261 (308)
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International Journal of Microcirculation, 1995
During disease, the flow of blood cells through the capillary network is one of the most perilous events in the microcirculation. Capillary distensibility, cytoplasmic activity of endothelial cells, red cells and leukocytes play an important role in capillary perfusion.
G W, Schmid-Schönbein, J, Lee
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During disease, the flow of blood cells through the capillary network is one of the most perilous events in the microcirculation. Capillary distensibility, cytoplasmic activity of endothelial cells, red cells and leukocytes play an important role in capillary perfusion.
G W, Schmid-Schönbein, J, Lee
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Capillary Flow Impairment and Functional Capillary Density
International Journal of Microcirculation, 1995Functional capillary density is variable in both normal and diseased tissue. When this parameter is defined as the number of capillaries that possess red blood cell transit, changes in functional capillary density reflect mechanisms that modulate the entrance of red blood cells into the capillaries.
A G, Tsai +2 more
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International Journal of Multiphase Flow, 2012
Abstract We present here a model of the meniscus movement within uniform capillaries that explicitly accounts for the effect of the gas phase. The total momentum was assumed to change by the gravitational, viscous, surface, dissipative and boundary forces, and included dynamical effects due to variable contact angle and the reservoirs adjacent the ...
Federico Maggi +1 more
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Abstract We present here a model of the meniscus movement within uniform capillaries that explicitly accounts for the effect of the gas phase. The total momentum was assumed to change by the gravitational, viscous, surface, dissipative and boundary forces, and included dynamical effects due to variable contact angle and the reservoirs adjacent the ...
Federico Maggi +1 more
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Geometry-Induced Asymmetric Capillary Flow
Langmuir, 2014When capillary flow occurs in a uniform porous medium, the depth of penetration is known to increase as the square root of time. However, we demonstrate in this study that the depth of penetration in multi-section porous layers with variation in width and height against the flow time is modified from this diffusive-like response, and liquids can pass ...
Dahua, Shou +6 more
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Microfluidic flow counterbalanced capillary electrophoresis
The Analyst, 2013Flow counterbalanced capillary electrophoresis (FCCE) offers a powerful approach to realizing difficult charge based separations in compact microchip devices with application of relatively small electrical voltages. The need for dynamically controlling the pressure-gradient in the FCCE column however presents a significant challenge in implementing ...
Ling, Xia, Debashis, Dutta
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Treelike networks accelerating capillary flow
Physical Review E, 2014Transport in treelike networks has received wide attention in natural systems, oil recovery, microelectronic cooling systems, and textiles. Existing studies are focused on transport behaviors under a constant potential difference (including pressure, temperature, and voltage) in a steady state [B. Yu and B. Li, Phys. Rev. E 73, 066302 (2006); J.
Dahua, Shou, Lin, Ye, Jintu, Fan
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Capillary Flow in Triangular Grooves
Journal of Applied Mechanics, 1974Solutions to the two-dimensional equations of motion for steady laminar flow in grooves are obtained by the Galerkin boundary method. The two independent parameters which characterize the flow configuration are the half angle of the liquid-filled triangular groove and the contact angle of the shear-free meniscus.
Ayyaswamy, P. S. +2 more
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Flow Rate Limitation in Open Capillary Channel Flows
Annals of the New York Academy of Sciences, 2006Abstract: This paper reports the experimental and theoretical investigations of forced liquid flows through open capillary channels under reduced gravity conditions. An open capillary channel is a structure that establishes a liquid flow path at low Bond numbers, when the capillary pressure caused by the surface tension force dominates in comparison ...
Dennis, Haake +3 more
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Flow Counterbalanced Capillary Electrophoresis
Analytical Chemistry, 1994A new approach for increasing the efficiency and resolving power of capillary electrophoresis is presented. This approach utilizes a pressure-induced counterflow to actively retard, halt, or reverse an analyte's electrokinetic migration through a capillary.
Christopher T. Culbertson +1 more
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Capillary electrochromatography with segmented capillaries for controlling electroosmotic flow
Electrophoresis, 1999Capillaries consisting of two segments each packed with a different stationary phase were introduced for the control and manipulation of the electroosmotic flow (EOF) in capillary electrochromatography (CEC). This kind of column configuration was called segmented capillary where one segment was packed with octadecyl silica (ODS) and served as the ...
C, Yang, Z, El Rassi
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