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Anguilliform leptocephali of the genus Thalassenchelys Castle and Raju 1975 are remarkably large and peculiarly shaped eel larvae, whose adult form has been unknown since the discovery of the larvae in the 1950s. We found bigmouth conger Congriscusmegastomus (Günther 1877) collected off the Pacific coasts of Japan to have mitochondrial DNA sequences (16S rDNA and COI) nearly identical to...
In this study, we have proposed an improved anti-windup control using a Proportional-Integral (PI) controller. PI control has been widely used for the industrial applications. However, PI controller is usually designed in a linear region ignoring the saturation-type nonlinearity. An anti-windup control comprises a linear feedback controller that satisfies the desired non-saturation specification and...
In this paper, we proposed a robust discrete-time controller. This control system, which is derived from the idea of the normalized plant, does not include plant parameters. Thus, we obtain a control system independent of plant parameters and that has the same structure as a conventional optimal servo control system. Simulation and experimental results show that the proposed method is fairly robust...
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