Image processing of fabric evolution in granular salt subject to diffusive mass transfer

2015 ◽  
pp. 51-60 ◽  
Keyword(s):  
Image Processing ◽  
Mass Transfer ◽  
Diffusive Mass Transfer ◽  
Fabric Evolution

Diffusive mass transfer in island films

1978 ◽  
Vol 125 (7) ◽  
pp. 489-525 ◽  
Author(s):  
Ya.E. Geguzin ◽  
Yu.S. Kaganovskii
Keyword(s):  
Mass Transfer ◽  
Diffusive Mass Transfer ◽  
Island Films

Microfluidics to determine the diffusive mass transfer of a low viscosity solvent into a high viscosity hydrocarbon

Fuel ◽  
2019 ◽  
Vol 235 ◽  
pp. 1327-1336 ◽  
Author(s):  
Kiarash Keshmiri ◽  
Mohammad Pourmohammadbagher ◽  
Haibo Huang ◽  
Neda Nazemifard
Keyword(s):  
Mass Transfer ◽  
High Viscosity ◽  
Low Viscosity ◽  
Diffusive Mass Transfer

Forced and Diffusive Mass Transfer between Pentane and Athabasca Bitumen Fractions

2011 ◽  
Vol 25 (2) ◽  
pp. 782-790 ◽  
Author(s):  
Ardalan Sadighian ◽  
Mildred Becerra ◽  
Ala Bazyleva ◽  
John M. Shaw
Keyword(s):  
Mass Transfer ◽  
Athabasca Bitumen ◽  
Diffusive Mass Transfer

Diffusive mass transfer in island films

1978 ◽  
Vol 21 (7) ◽  
pp. 611-629 ◽  
Author(s):  
Ya E Geguzin ◽  
Yu S Kaganovskiĭ
Keyword(s):  
Mass Transfer ◽  
Diffusive Mass Transfer ◽  
Island Films

An Experimental Study of Transport Properties of Ceramic Membranes for Use in Hemodialysis

2008 ◽  
Author(s):  
Zhonping Huang ◽  
Anil C. Attaluri ◽  
Amit Belwalkar ◽  
William Van Geertruyden ◽  
Dayong Gao ◽  
...  
Keyword(s):  
Mass Transfer ◽  
Molecular Weight ◽  
Pore Size ◽  
Pore Distribution ◽  
Hydraulic Permeability ◽  
High Flux ◽  
Convective Mass Transfer ◽  
Diffusive Mass Transfer ◽  
Solute Clearance ◽  
Uniform Pore Size

Hemodialysis (HD) remains the primary treatment modality for the management of renal failure patients. Hemodialysis membranes play an important role in renal replacement therapy (RRT). HD is an extracorporeal blood clean process where the major mass transfer mechanism is diffusion. This therapy is mainly effectual for low molecular weight (LMW) solutes (such as urea and creatinine) removal or clearance for which diffusive mass transfer is a swift process. There is an increase in the removal of middle molecular weight (MMW) solutes (such as β2-microglobulin) when high flux membranes are available. Hemodiafiltration (HDF) is a treatment where the convective mass transfer accolades with diffusive mass transfer to increase the solute clearance efficacy, specifically for MMW solutes. The convective mass transfer is reliant on the amount of fluid exchanged. Toxin removal efficiency of HDF significantly depends on the porosity, pore size, pore distribution and surface area of the membrane [1, 2]. Although newly developed high flux polysulfone membranes have high MMW solute clearance, the non-uniform pore size and pore distribution is the main contributors to the albumin loss. Previous studies by Huang et al.[3], showed that nanoporous alumina sheet membranes have uniform pore size (∼ 10nm), high hydraulic permeability, uniform pore distribution and excellent pore structure with uniform channels. It was predicted that these membranes would have high molecular removal capacity. Therefore, in this study, experiments were performed to generate the data of intrinsic membrane properties such as hydraulic permeability, sieving coefficient and solute diffusive permeability for the alumina tubular membranes. Results were also compared to current polyethersulfone (PES) dialysis membranes.

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