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Bipartite Consensus of Nonlinear Discrete-time Multi-agent Systems via Variable Impulsive Control
Ziqiang Xu,Yun Li,Xiang Hu,Chuandong Li,Yiyan Han 제어·로봇·시스템학회 2022 International Journal of Control, Automation, and Vol.20 No.2
This paper addresses the bipartite consensus of the nonlinear discrete-time multi-agent systems on network where cooperation and confrontation exist simultaneously. The communication graph has negative weights to represent antagonistic interaction among agents. Two kinds of distributed variable impulsive protocols are designed for case with leader and leaderless. Compared with existing fixed-time impulsive protocols, the action instant of variable impulsive protocol is in a time window and not fixed, which is more suitable for practical application. By employing Lyapunov function approach and comparison system theorem, the results reveal that the bipartite leaderless consensus and bipartite tracking consensus can be achieved. Meanwhile, the rate of bipartite consensus possess the characteristic of exponential, if some conditions are met. Finally, the effectiveness of the consensus analysis is verified by three simulation examples.
Label-free Microarray-based Binding Affinity Constant Measurement with Modified Fluidic Arrangement
junwei Hu,Ru Chen,Chenggang Zhu,Bilin Ge,Xiangdong Zhu,Lan Mi,Jiong Ma,Caiqin Han,Hao Chen,Yiyan Fei 한국바이오칩학회 2018 BioChip Journal Vol.12 No.1
The oblique-incidence reflectivity difference (OI-RD) scanning microscopy has the capability of simultaneously measuring binding curves of a protein probe with tens of thousands molecular targets in a microarray and yielding reaction rate constants. However, the quality of reaction rate constants is influenced by the fluidic system. To improve the quality of reaction rate constant measurement over the entire microarray, we demonstrate a fluidic chamber that allows the fluid to flow from the bottom to the top uniformly across the microarray and thus provides more uniform and accurate measurements of reaction rate constants with simplified fluidic design.