Results 41 to 50 of about 180,687 (326)
Osmotic pressure between arbitrarily charged surfaces: a revisited approach [PDF]
Eur. Phys. J. E 41, 11 (2018), 2017 The properties of ionic solutions between charged surfaces are often studied within the Poisson-Boltzmann framework, by finding the electrostatic potential profile. For example, the osmotic pressure between two charged planar surfaces can be evaluated by solving coupled equations for the electrostatic potential and osmotic pressure.
arxiv +1 more source
Drying of red beetroot after osmotic pretreatment: Kinetics and quality considerations
Chemical and Process Engineering, 2015 This article presents experimental studies on drying kinetics and quality effects of red beetroot (Beta vulgaris L.) after convective drying with a preliminary osmotic pretreatment.
Kowalski Stefan J. +1 more
doaj +1 more source
Response To Salinity In Rice: Comparative Effects Of Osmotic And Ionic Stresses
Plant Production Science, 2007 The Effects Of The Osmotic Component Of Salt Stress On Rice Cultivar Ir64 Were Examined. Treatments Were Four Combinations Of Two Levels Of Osmotic Stress At Two Developmental Stages: Medium- And High-Level Stress Applied At The Vegetative And ...
Ernesto Castillo +3 more
doaj +1 more source
Donnan Equilibrium Revisited: Coupling between Ion Concentrations, Osmotic Pressure, and Donnan Potential [PDF]
arXiv, 2021 This paper discusses the little-known fact that Donnan's equilibrium criteria established over 100 years ago neglected the coupling between ion concentrations and the osmotic pressure. Such coupling can be treated based on general thermodynamic considerations including the solvent equilibrium, leading to a membrane potential that consists of not only ...
arxiv
Osmotic and diffusio-osmotic flow generation at high solute concentration. II. Molecular dynamics simulations [PDF]
The Journal of Chemical Physics 146, 194702 (2017), 2017 In this paper, we explore osmotic transport by means of molecular dynamics (MD) simulations. We first consider osmosis through a membrane, and investigate the reflection coefficient of an imperfectly semi-permeable membrane, in the dilute and high concentration regimes.
arxiv +1 more source
ON THE OSMOTIC CONCENTRATION OF THE TISSUE FLUIDS OF PHANEROGAMIC EPIPHYTES
American Journal of Botany, 1918 The purpose of this paper, which is one of a series dealing with the problem of the physico-chemical properties of vegetable saps in relation to environmental factors and to geographical distribution, is to present the results of three series of determinations of the osmotic concentration of the tissue fluids of phanerogamic epiphytes, and to compare ...
J. Arthur Harris
openalex +5 more sources
A stepwise emergence of evolution in the RNA world
FEBS Letters, EarlyView.How did biological evolution emerge from chemical reactions? This perspective proposes a gradual scenario of self‐organization among RNA molecules, where catalytic feedback on random mixtures plays the central role. Short oligomers cross‐ligate, and self‐assembly enables heritable variations. An event of template‐externalization marks the transition to
Philippe Nghe
wiley +1 more source
Theoretical Framework for Microscopic Osmotic Phenomena [PDF]
APS Phys. Rev. E, 75, 1, (2007), 2009 The basic ingredients of osmotic pressure are a solvent fluid with a soluble molecular species which is restricted to a chamber by a boundary which is permeable to the solvent fluid but impermeable to the solute molecules. For macroscopic systems at equilibrium, the osmotic pressure is given by the classical van't Hoff Law, which states that the ...
arxiv +1 more source
Boundaries of photosynthesis: adaptations of carbon fixation in extreme environments
FEBS Open Bio, EarlyView.Photosynthesis faces challenges from environmental extremes of temperature, pH, and salinity, limiting gas diffusion, modifying membrane fluidity, and destabilizing photochemical and biochemical reactions. Photosynthetic organisms have evolved unique adaptations overcoming these stresses and maintaining their photosynthetic activity.
Pere Aguiló‐Nicolau +3 more
wiley +1 more source
Generic transport coefficients of a confined electrolyte solution [PDF]
Phys. Rev. E 90, 052113 (2014), 2014 Physical parameters characterising electrokinetic transport in a confined electrolyte solution are reconstructed from the generic transport coefficients obtained within the classical non-equilibrium statistical thermodynamic framework. The electro-osmotic flow, the diffusio-osmotic flow, the osmotic current, as well as the pressure-driven Poiseuille ...
arxiv +1 more source