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Dandan Li,Jing Ma,Hengmin Zhu,Mei Sun 제어·로봇·시스템학회 2016 International Journal of Control, Automation, and Vol.14 No.4
In many real-world multi-agent systems, the intrinsic dynamics of the agents are usually dynamic ratherthan static as the environmental uncertainty and the additive exogenous disturbance input. This paper aims atinvestigating the consensus problem of multi-agent systems with uncertainties and randomly occurring nonlinearities(RONs). Consider the robust and lost-cost, an effective impulsive control protocol is designed. Based onthe Lyapunov stability theory and hybrid control theory, sufficient conditions are obtained to ensure consensus ofmulti-agent systems. Furthermore, both mathematical investigations and numerical simulations are presented todemonstrate the effectiveness of the proposed approaches.
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Apoptosis induced in vivo by new type gosling viral enteritis virus
Shun Chen,Anchun Cheng,Mingshu Wang,Dekang Zhu,Renyong Jia,Qihui Luo,Hengmin Cui,Yi Zhou,Yin Wang,Zhiwen Xu,Zhengli Chen,Xiaoyue Chen,Xiaoyu Wang 대한수의학회 2011 JOURNAL OF VETERINARY SCIENCE Vol.12 No.4
In this study, apoptosis was induced by new type gosling viral enteritis virus (NGVEV) in experimentally infected goslings is reported in detail for the first time. After 3-day-old goslings were orally inoculated with a NGVEV-CN strain suspension, the time course of NGVEV effects on apoptotic morphological changes of the internal tissues was evaluated. These changes were observed by histological analysis with light microscopy and ultrastructural analysis with transmission electron microscopy. DNA fragmentation was assessed with a terminal deoxynucleotidyl transferase-mediated dUTP nick end-labeling (TUNEL) assay and DNA ladder analysis. A series of characteristic apoptotic morphological changes including chromatin condensation and margination, cytoplasmic shrinkage, plasma membrane blebbing, and formation of apoptotic bodies were noted. Apoptosis was readily observed in the lymphoid and gastrointestinal organs, and sporadically occurred in other organs after 3 days post-infection (PI). The presence and quantity of TUNEL-positive cells increased with infection time until 9 days PI. DNA extracted from the NGVEV-infected gosling cells displayed characteristic 180~200 bp ladders. Apoptotic cells were ubiquitously distributed, especially among lymphocytes, macrophages, monocytes, and epithelial and intestinal cells. Necrosis was subsequently detected during the late NGVEV-infection phase, which was characterized by cell swelling, plasma membrane collapse, and rapidly lysis. Our results suggested that apoptosis may play an important role in the pathogenesis of NGVE disease.
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