Filter is one of the main components of embankment dams. By a simple but effective performance, filter protects the dam against erosion and soil scouring in impervious core caused by leakage (piping) and makes it safe. Interaction between filter and erodible base soil is a complex phenomenon which is dependent upon several factors, and has challenged researchers for better understanding the fil...

Single wall carbon nanotubes (SWCNTs) dispersed by negatively charged sodium deoxycholate (DOC) or positively cetrimonium bromide (CTAB) are shown to assemble into aligned films (3.8 cm2) on polycarbonate membranes slow flow dead-end filtration. Global alignment (S2D max ? 0.85) is obtained both pristine polyvinylpyrrolidone (PVP) coated and those with an intentional 150–600 nm groove pattern f...

The article describes the definition of filtration flow gradients in dam's body on example Kattakurgan reservoir, analysis reasons for their change cross-section. Evaluation aggressiveness plays an important role ensuring stability reservoir dam and its parts. To assess body, it is necessary to know action pattern water effect elements dam. In addition, chemical composition piezometers was anal...

The formation of a deposit layer on membrane surfaces is an important problem, particularly in milk filtration. Properties the and efficiency removal can be studied using various indirect methods based mainly average resistance formation–deposit cycles, but their conclusions reversibility depend conditions surrounding analysis. Here we present method for direct characterization compression via ...

A safe and simple technique for the ing preformed leukocyte antibodies, as collection of large numbers of granucompared to the median increment of locytes from normal donors, based on 850/cu mm reported following transthe reversible adhesion of granulocytes fusion of leukocytes obtained by difto nylon wool filters, is described. The ferential centrifugation. The safety and procedure is well tol...

Reverse Osmosis systems are wildly used for sea water desalination and water reclamation but they meet problems regarding bio-fouling. Bio-fouling increases their work pressure and operational costs and decreases their removal efficiencies. Phosphorus limitation is one strategy to control bio-fouling. This report focuses on phosphorus removal by ceramic tight ultra-filtration (CTUF) membranes (...

Flow of tubule fluid to the macula densa is part of a proposed feedback loop for autoregulation of glomerular filtration rate. In the present study, autoregulation of single nephron filtration rate was tested in the presence and the absence of flow to the macula densa in the rat. Filtration rates were measured at elevated arterial blood pressures caused by carotid occlusion and vagal section an...

We report on the development of a method to simulate from first principles the particle filtration efficiency of filters that are composed of structured porous media. We assume that the ratio of particle density to the fluid density is high. We concentrate on the motion of the particles in a laminar flow and quantify the role of inertial effects on the filtration of an ensemble of particles. We...