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Inspec keywords: process control; uncertain systems; nonlinear control systems; observers; asymptotic stability; variable structure systems; feedback; fermentation; nonlinear differential equations; chemical variables measurement
Subjects: Nonlinear control systems; Industrial processes; Mathematical analysis; Control applications in chemical and oil refining industries; Control technology and theory (production); Mathematical analysis; Chemical variables control; Multivariable control systems; Stability in control theory; Chemical industry