نتایج جستجو برای: solute concentration

تعداد نتایج: 395090  

2017
M. A. S. D. Barros P. A. Arroyo E. A. Silva

Equilibrium condition is attained when the concentration of the solute remains constant, as a result of zero net transfer of solute sorbed and desorbed from sorbent surface. The equili‐ brium sorption isotherms describe these relationships between the equilibrium concentra‐ tion of the sorbate in the solid and liquid phase at constant temperature. Experimental data may provide different isother...

Journal: :journal of chemical and petroleum engineering 2011
parisa zaheri hosein abolghasemi mohammad ghannadi maragheh maryam zaheri

drop size distribution in a mixer-settler is an essential design parameter, as obtaining drop size distribution will result in optimum performance of equipment. in this paper for obtaining drop size, several experiments have been performed with a single stage horizontal mixer-settler. a video technique has been used in order to measure the drop size in the mixer-settler with the help of a digit...

Journal: :Journal of biomechanical engineering 2005
Bingmei M Fu Roger H Adamson Fitz-Roy E Curry

Interstitium contains a matrix of fibrous molecules that creates considerable resistance to water and solutes in series with the microvessel wall. On the basis of our preliminary studies, by using laser-scanning confocal microscopy and a theoretical model for interstitial transport, we determined both microvessel solute permeability (P) and solute tissue diffusion coefficient (D) of alpha-lacta...

Journal: :Physical review. E, Statistical, nonlinear, and soft matter physics 2015
Rei Tatsumi Osamu Koike Yukio Yamaguchi

We construct a mesoscale model of colloidal suspensions that contain solutes reversibly adsorbing onto the colloidal particle surfaces. The present model describes the coupled dynamics of the colloidal particles, the host fluid, and the solutes through the Newton-Euler equations of motion, the hydrodynamic equations, and the advection-diffusion equation, respectively. The solute adsorption is m...

Journal: :The journal of physical chemistry. A 2013
Jonathan P Bower Cort Anastasio

Liquid-like regions (LLRs) are found at the surfaces and grain boundaries of ice and as inclusions within ice. These regions contain most of the solutes in ice and can be (photo)chemically active hotspots in natural snow and ice systems. If we assume all solutes partition into LLRs as a solution freezes, freezing-point depression predicts that the concentration of a solute in LLRs is higher tha...

2018
Aleksey Etinger Kumar William Ackley Leland Soiefer Jonathan Chun Prabjhot Singh Eric Grossman Albert Matalon Robert S Holzman Bjorn Meijers Jerome Lowenstein

BACKGROUND There is growing evidence that the accumulation of protein- bound uremic retention solutes, such as indoxyl sulfate, p-cresyl sulfate and kynurenic acid, play a role in the accelerated cardiovascular disease seen in patients undergoing chronic hemodialysis. Protein-binding, presumably to albumin, renders these solutes poor-dialyzable. We previously observed that the free fraction of ...

2007
Rose Peters

The relationship between discharge and solute concentration was investigated at the Panola Mountain Research Watershed (PMRW), near Atlanta, Georgia, between the water years 1986-2002. Applying previous work by Evans and Davies (1998), the characteristics of the hysteresis loops were used to evaluate the temporal variation of the relative contribution to streamflow of source waters including gr...

Journal: :Multiscale Modeling & Simulation 2006
Jorge M. Ramírez Enrique A. Thomann Edward C. Waymire Roy Haggerty Brian Wood

This paper concerns the Taylor-Aris dispersion of a dilute solute concentration immersed in a highly heterogeneous fluid flow having possibly sharp interfaces (discontinuities) in the diffusion coefficient and flow velocity. The focus is two-fold: (i) Calculation of the longitudinal effective dispersion coefficient, and (ii) sample path analysis of the underlying stochastic process governing th...

2010
M. A. Yousuf K. M. Salim Reza Md. Moniruzzaman M. A. Aziz A. Salam

The densities, ρ and viscosities, η of NH4Cl, NiCl2 and FeCl3 in dimethylsulfoxide were studied as a function of concentration. The partial molal volume, ( 0 v φ ) of these electrolytes were evaluated. The viscosity and viscosity-coefficients (A and B) were also determined by Jones-Dole equation. B-coefficient for NiCl2 and FeCl3 are positive that show structure making behavior in all the solut...

Journal: :Biochemical Society transactions 1980
A A Eddy

There is now widespread support for the general concept that the accumulation of certain solutes in various prokaryotic and eukaryotic systems is energized by the circulation of protons or of Nat ions across the plasmalemma. The way in which energy coupling occurs, however, is poorly understood, progress being hindered both by the present lack of information about its molecular basis and by the...

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