Concept

Osmosis

Related publications (61)

A novel approach for the extraction of herbicides and pesticides from water using liquid-core microcapsules

A perstraction system using liq.-core microcapsules for pesticide and herbicide removal from aq. environments is proposed. The microcapsules contain an oil, di-Bu sebacate, surrounded by a hydrogel membrane. The extn. efficiency of the capsules was demonst ...

2004

QM/MM Car-Parrinello molecular dynamics study of selectivity in a potassium channel

Ursula Röthlisberger, Denis Bucher, Paolo Carloni, Leonardo Guidoni

All biol. ion channels are selectively permeable to specific ions. This mechanism needs to be understood in terms of the interaction of the permeating ions with the surrounding water and protein mols. During the past several years, there have been enormous ...

2004

Flow cytometry and sorting of amphibian bladder endocytic vesicles containing ADH-sensitive water channels

Françoise Gisou van der Goot Grunberg

The water permeability of ADH target epithelial cells is believed to be regulated by a cycle of exo-endocytosis of vesicles containing functional water channels. These vesicles were selectively labeled in intact frog urinary bladders with an impermeant flu ...

1992

Axial heterogeneity of apical water permeability along rabbit kidney proximal tubule

Françoise Gisou van der Goot Grunberg

In the rabbit nephron, the luminal membrane surface area of the proximal convoluted tubule (PCT) is more than twice that of the proximal straight tubule (PST). What seemed to be an increase in histological specialization in solute and water transport is cu ...

American Physiological Society1991

Equilibrium Gradient Effects in the Theory of Alfven-Wave Heating

Kurt Appert

An explicit expression for the local power absorption density in a uniformly-magnetized slab plasma is derived from the Vlasov-Maxwell equations, taking into account density and temperature gradients. Using a transformation to Lagrangian coordinates, the k ...

1991

Water permeabilities and salt reflection coefficients of luminal, basolateral and intracellular membrane vesicles isolated from rabbit kidney proximal tubule

Françoise Gisou van der Goot Grunberg

The mechanisms of water transport across the rabbit renal proximal convoluted tubule were approached by measuring osmotic permeabilities and solute reflection coefficients of the brush-border and the basolateral membranes. Plasma and intracellular membrane ...

1989

On the Dagan model of solute transport in groundwater: Foundational aspects

David Andrew Barry

The convection-dispersion equation (CDE) developed by Dagan [1984] to predict the ensemble-average concentration of a conservative solute in groundwater has been used successfully to interpret recent tracer experiments in a sand aquifer at the Borden site ...

American Geophysical Union1987

Reverse osmosis and ultrafiltration of sweet whey

Urs von Stockar

Methodol. equipment design, and cost ests. are given for the ultrafiltration and reverse osmosis of sweet whey. Calcns. showed that optimum results are obtained when the whey is concd. to 18% solids at the site of whey prodn., and then shipping the conc. t ...

1987

Metabolic, physiological and kinetic aspects of the alcoholic fermentation of whey permeate by Kluyveromyces fragilis NRRL 665 and Kluyveromyces lactis NCYC 571

Urs von Stockar

Optimum growth conditions for the fermn. of nonconcd. whey permeate by K. fragilis NRRL 665 were defined. Use of 3.75 g yeast ext./L, a growth temp. of 38 Deg and a pH of 4.0 allowed a max. productivity of 5.23 g EtOH [64-17-5]/L-h in continuous culture wi ...

1985

Some approximate solutions of the transport equation with irreversible kinetics

David Andrew Barry

We discuss the influence of disperaion on solute movement for zero-order, first-order, and Michaelis-Menten kinetics. In general, dispersion enters both the transport equation and the boundary condition at the soil surface. The method of characteristics yi ...

1984

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