Determination of diffusion coefficients and diffusion characteristics for chlorferon and diethylthiophosphate in Ca-Alginate gel beads

2008 ◽  
Vol 100 (4) ◽  
pp. 698-706 ◽  
Author(s):  
Jiyeon Ha ◽  
Cady R. Engler ◽  
Seung Jae Lee
1984 ◽  
Vol 26 (1) ◽  
pp. 53-58 ◽  
Author(s):  
Hideo Tanaka ◽  
Masatoshi Matsumura ◽  
I. A. Veliky

2020 ◽  
Vol 23 (2) ◽  
pp. 143-151
Author(s):  
Jamiyanaa Dashdorj ◽  
William C. Pfalzgraff ◽  
Aaron Trout ◽  
Delenn Fingerlow ◽  
Michelle Cordier ◽  
...  

2011 ◽  
Vol 8 (4) ◽  
pp. 1916-1924 ◽  
Author(s):  
Khalisanni Khalid ◽  
Rashid Atta Khan ◽  
Sharifuddin Mohd Zain

The reversed-flow gas chromatography (RF-GC) technique was used to study the evaporation rate and estimating the diffusion coefficient of samples. The RF-GC system comprises of six-port valve, sampling and diffusion column, detector and modified commercial gas chromatography machine. Selected long chain of hydrocarbons (99.99% purity) was used as samples. The solute (stationary phase) were carried out by carrier gas (mobile phase) to the detector. The data obtained from the RF-GC analysis were analysed by deriving the elution curve of the sample peaks using mathematical expression to find the diffusion coefficients values of respective liquids. The values obtained were compared with theoretical values to ensure the accuracy of readings. The interesting findings of the research showed the theoretical values of equilibrium at liquid-gas interphase lead to profound an agreement with the experimental evidence, which contributes for the references of future studies.


2010 ◽  
Vol 297-301 ◽  
pp. 1322-1327 ◽  
Author(s):  
N. Garimella ◽  
H.J. Choi ◽  
Yong Ho Sohn

Diffusion in L12-Ni3Al with ternary alloying additions of Ir, Ta and Re was investigated at 1200°C using solid-to-solid diffusion couples, and examined with respect to site preference in ordered intermetallic compound. In addition to determination of average ternary interdiffusion coefficients [1-3], average effective interdiffusion coefficients were determined directly from the experimental concentration profiles. Ni has the largest magnitude of average effective interdiffusion coefficient, followed by Al, Ir, Re and Ta. The average effective interdiffusion coefficients for Ir, Re and Ta are much smaller than those for Ni and Al. Tracer diffusion coefficients determined by extrapolation technique, and available literature also followed the same trend. The relative tendency of Ni, Al, Ir, Re and Ta to occupy the -Ni and -Al sites are correlated to these diffusion coefficients, with due consideration for diffusion mechanisms and coordination of atoms.


1993 ◽  
Vol 41 (8) ◽  
pp. 1475-1477 ◽  
Author(s):  
Hisao TOMIDA ◽  
Chikara MIZUO ◽  
Chie NAKAMURA ◽  
Setsuo KIRYU
Keyword(s):  

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