Results 221 to 230 of about 2,090,212 (264)

The change of the diffusivity with the change of the concentration of the solvent in a solution

Acta Mechanica, 1989
We consider the convective mass transfer of drops and solid particles with a viscous liquid flow when the diffusion coefficient is arbitrarily dependent on the concentration. We discuss the exact solutions of this problem and we present such a solution for the special case of hyperbolic dependence of the diffusion coefficient on the concentration.
N. T. Kovatcheva, A. D. Polyanin, Z. D. Zapryanov   +2 more
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Change in concentration with time

Journal of Chemical Education, 1985
Shows how the rate of a reaction is fast at first and then gradually decreases to zero when one reactant has been used up.
openaire   +1 more source

Relationship of serum glucose concentration to changes in refraction

Diabetes, 1976
The effect of chronic changes in serum glucose concentration on refraction was studied by increasing the dose of insulin or chlorpropamide in 10 diabetic patients who initially had relatively high glucose concentrations. In every case when serum glucose concentration was reduced the vision became less myopic or more hyperopic.
G, Gwinup, A, Villarreal
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Changing Concentrations of Older Americans

Geographical Review, 1978
The spatial distribution of persons aged 65 and older in the United States is examined for 1950 and 1970. A descriptive analysis is undertaken of maps depicting the county concentration of elderly people relative to total country population. The national pattern of local concentration is found to vary considerably between the two time periods.
Thomas O. Graff, Robert F. Wiseman
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Recent Changes in the Concentration of Manufacturing

Annals of the Association of American Geographers, 1945
The expansion of manufacturing facilities in the United States between 1939 and 1945 focused attention upon an activty which has had generally minor attention in geographic literature. In view of the absolute and relative importance of manufacturing as a livelihood, the number and distribution of wage jobs in industry become of particular interest to ...
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Limiting concentration during batch electrodialysis process for concentrating high salinity solutions: A theoretical and experimental study

Desalination, 2021
Shifang Huang, Muxing Zhang
exaly  

A Low‐Concentration Electrolyte for High‐Voltage Lithium‐Metal Batteries: Fluorinated Solvation Shell and Low Salt Concentration Effect

Angewandte Chemie - International Edition, 2022
Feixiang Wu
exaly  

Changes in concentrations of methylglyoxal,

Research in Experimental Medicine, 1996
M. Kawase, M. Tada, S. Akagi, S. Ohmori
openaire   +1 more source

Non-Diffusional Concentration Changes

1981
In this chapter we lump together the really quite uncomplicated complications of homogeneous chemical reaction kinetics and convective transport. There is nothing conceptually difficult with kinetics; the only problems encountered are due to reactions proceeding too fast or, in multi-step reactions, having to account for a number of reaction species ...
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Product Differentiation, Concentration, and Changes in Concentration

The Review of Economics and Statistics, 1978
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