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. 2022 Aug 18;61(11):9235–9242. doi: 10.1016/j.aej.2022.08.022

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© 2022 THE AUTHORS. Published by Elsevier BV on behalf of Faculty of Engineering, Alexandria University.

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Fig. 5 — When $N = 100000000, β = 0.04, σ = 0.45, k_{1} = 500, k_{2} = 100, μ_{1} = 0.02, γ = 0.0001, μ_{2} = 0.209, α = 0.1$ .