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. Author manuscript; available in PMC: 2014 Jan 23.
Published in final edited form as: Nonlinearity. 2013 Sep 23;26(10):2899–2922. doi: 10.1088/0951-7715/26/10/2899

Figure 4.

Figure 4

The electrostatic potential ψ (left) and the equilibrium ionic concentrations (right). Top. Case I: (N1, N2, N3,N4) = (60,30,20,50), σ < 0, and σ∞ > 0. Bottom. Case II: (N1, N2, N3,N4) = (50,50,50,50), σ < 0, and σ∞ < 0. The concentrations profiles are marked by the corresponding ionic valences.