Continuous charge distribution models of ions in polar media. Part 2.—Self and interaction energies for soft charged ring systems dissolved in a polar medium

1976 ◽  
Vol 72 (0) ◽  
pp. 171-182 ◽  
Author(s):  
Parbury P. Schmidt
Keyword(s):  
Charge Distribution ◽  
Interaction Energies ◽  
Distribution Models ◽  
Polar Medium ◽  
Ring Systems ◽  
Polar Media ◽  
Charged Ring

Effect of Modification by WTP-08 on Dispersity of Nanosized CalciumCarbonate and Its Mechanism

2011 ◽  
Vol 688 ◽  
pp. 51-56
Author(s):  
Hao Ding ◽  
Bai Kun Wang ◽  
Ning Liang ◽  
Kun Liu
Keyword(s):  
Free Energy ◽  
Calcium Carbonate ◽  
Surface Energy ◽  
Chemical Method ◽  
Interfacial Free Energy ◽  
Free Energies ◽  
Polar Medium ◽  
Polar Media ◽  
Thermodynamic Effect ◽  
Interfacial Free Energies

The dispersity of nanosized calcium carbonate modified by alkyl amine dimethyl phosphonic acid (WTP-08) through mechano-chemical method in different media was investigated. The modification mechanism was investigated by analyzing the surface energy and its thermodynamic effect on dispersity of nanosized calcium carbonate. The results show that the free energies of nanosized calcium carbonate modified by WTP-08 and its interfacial free energies in air and non-polar media decrease significantly, while the interfacial free energy in water increases remarkably. It can be concluded that modification by WTP-08 improves the dispersion tendency of nanosized calcium carbonate in air and non-polar medium, while it decreases in water. Therefore, modification by WTP-08 makes the dispersity of nanosized calcium carbonate increase in air and non-polar medium and decrease in water.

Fast Solvers for Charge Distribution Models on Shared Memory Platforms

2020 ◽  
Vol 42 (1) ◽  
pp. C1-C22 ◽  
Author(s):  
Kurt A. O'Hearn ◽  
Abdullah Alperen ◽  
Hasan Metin Aktulga
Keyword(s):  
Shared Memory ◽  
Charge Distribution ◽  
Distribution Models ◽  
Fast Solvers
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