scholarly journals Existence of positive solutions of an elliptic equation with local and nonlocal variable diffusion coefficient

2019 ◽  
Vol 24 (8) ◽  
pp. 3689-3711
Author(s):  
Giovany M. Figueiredo ◽  
◽  
Tarcyana S. Figueiredo-Sousa ◽  
Cristian Morales-Rodrigo ◽  
Antonio Suárez ◽  
...  
Keyword(s):  
Diffusion Coefficient ◽  
Elliptic Equation ◽  
Positive Solutions ◽  
Variable Diffusion Coefficient ◽  
Existence Of Positive Solutions ◽  
Variable Diffusion

Description of segregation in a horizontal drum mixer by use of the diffusion equation

1988 ◽  
Vol 53 (4) ◽  
pp. 771-787 ◽  
Author(s):  
Vladimír Kudrna ◽  
Andrzej Rochowiecki
Keyword(s):  
Diffusion Coefficient ◽  
Diffusion Equation ◽  
Two Dimensions ◽  
Solid Particles ◽  
Axial Segregation ◽  
Variable Diffusion Coefficient ◽  
Drum Mixer ◽  
Forward Diffusion ◽  
Variable Diffusion ◽  
Horizontal Drum

An attempt has been made to describe the axial segregation of solid particles of two dimensions in a horizontal drum mixer. For this purpose the Kolmogorov's forward diffusion equation with variable diffusion coefficient and zero drift velocity was used. For the case of "pure" segregation this approach has given good results.

scholarly journals MODELING OF BASIL ESSENTIAL OIL EXTRACTION WITH VARIABLE DIFFUSION COEFFICIENT

2017 ◽  
Vol 37 (4) ◽  
pp. 717-726 ◽  
Author(s):  
Jeniffer C. Silveira ◽  
Andréa O. S. da Costa ◽  
Esly F. da Costa Junior
Keyword(s):  
Diffusion Coefficient ◽  
Essential Oil ◽  
Oil Extraction ◽  
Variable Diffusion Coefficient ◽  
Variable Diffusion
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