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Yi-Bin Lan,Xiao-Feng Xiang,Wei-Xi Yang,Bao-Qing Zhu,Hong-Tie Pu,Chang-Qing Duan 한국식품과학회 2020 Food Science and Biotechnology Vol.29 No.12
Berries of six Vitis davidii Foex (spine grape)cultivars (‘Baiputao’, ‘Gaoshan 1’, ‘Gaoshan 2’, ‘Seputao’,‘Miputao’, and ‘Tianputao’) were harvested from a commercialvineyard in Hunan Province in China. Free andbound volatile compounds and fatty acids were analyzedby GC–MS, and amino acids were analyzed by HPLC. ‘Tianputao’ and ‘Miputao’ were characterized by relativelyhigher concentrations of aromatic amino acids and lowerconcentrations of branched-chain amino acids. The majorfree volatile compounds of spine grapes were hexanal, (E)-2-hexenal, 1-hexanol, (E)-2-hexenol, (E)-b-damascenone,and benzeneacetaldehyde. The major glycosidically boundvolatile compounds identified were 1-hexanol, menthol,nerol, 1-butanol, 3-methyl-3-butenol, benzenemethanol, bphenylethanol,eugenol, and guaiacol. (E)-b-damascenone,benzeneacetaldehyde, guaiacol, and eugenol had odoractivity values (OAVs)[1 in all cultivar grapes. Partialleast squares discriminant analysis (PLS-DA) revealed‘Tianputao’ to be distinct from the other cultivars due to itsrelatively higher concentrations of major terpenoids,norisoprenoids, higher alcohols, and aromatic amino acids.
Yong-Hong Lan,Bin Wu,Yi-Ping Luo 제어·로봇·시스템학회 2022 International Journal of Control, Automation, and Vol.20 No.2
This paper presents a PI-type iterative learning control (ILC) law with initial state learning for a class of α (0 < α ≤ 1) fractional order linear systems. First, by using backward difference method, the finite difference approximation of the fractional order derivative is obtained, which leads to globally 2−α order accuracy. Then, a PIILC law is constructed at the nodes and the convergence analysis of the iterative scheme is proved. A new sufficient condition is derived to guarantee that the tracking error is asymptotical convergent. The obtained convergence condition is fractional order dependent and is less conservative than the existing one. Most of the classical ILC conditions for fractional order linear systems fall into the special case of this paper. Finally, the simulation results show the effectiveness of the proposed control method.