We investigate experimentally the behavior of self-propelled water-in-oil droplets, confined in capillaries different square and circular cross-sections. The droplet's activity comes from formation swollen micelles at its interface. In straight velocity droplet decreases with increasing confinement. However very high confinement, converges toward a non-zero value, so that even long droplets swi...

The aim of the present work is to investigate flow rate/pressure gradient relationship for yield stress fluids through rectilinear capillaries non-circular cross-sections. These very often serve as basic elements in modeling porous media bundles or pore-network models. Based on notions shape coefficient and critical Bingham number, empirical relationships have been proposed both Herschel–Bulkle...

due to high resolution power of sulfated cyclodextrins (hs-cds), utilization of these selectors for chiral resolution of 7 basic and 2 zwitterionic drugs have been examined. experiments were performed on a hp3dce instrument equipped with an on-column diode array uv absorbance detector. fused silica capillaries with an inner diameter of 50 ?m, an outer diameter of 365 ?m, and a total length of 4...

AIMS To assess quantitatively variations in the extent of capillary basement membrane (BM) thickening between different retinal layers and within arterial and venous environments during diabetes. METHODS One year after induction of experimental (streptozotocin) diabetes in rats, six diabetic animals together with six age-matched control animals were sacrificed and the retinas fixed for transm...

We use a local density functional theory in the square gradient approximation to explore the properties of critical nuclei for the liquid-vapor transition of van der Waals fluids in cylindrical capillaries. The proposed model allows us to investigate the effect of pore size, surface field, and supersaturation on the behavior of the system. Our calculations predict the existence of at least thre...

During physical exertion the consumption rate increases and some cells suffer from the lack of oxygen. The time-wise evolution of hypoxia is analyzed mathematically under the condition the perfusion of each capillary is constant. The domain used contains multiple non-homogeneous capillaries of different solute out. Cells surrounding capillaries may consume or preserve more oxygen than are neces...