Solve the Literal Equation z = (x - mu)/sigma for x,Visible-light activation of peroxydisulfate by magnetic BiOBr/MnFe2O4 nanocomposite toward degradation of tetracycline | Journal of Materials Science: Materials in Electronics,Normal distribution Z = (X - mu) / sigma,An Overview of the Fuzzy Data Envelopment Analysis Research and Its Successful Applications | International Journal of Fuzzy Systems,Applied Energy | Vol 308, 15 February 2022 | ScienceDirect.com by Elsevier,