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| 1 | Leader-Following Consensus of Multi-Agent Systems via Adaptive Event-Based Control显示文摘In this paper, the adaptive event-based control approach is applied to study leader-following consensus of multi-agent systems with linear dynamic models. Adaptive event-based controller and triggering function for each agent are designed, where the adaptive function is only dependent on its own event time instants. A sufficient condition on consensus is proposed, which shows that the adaptive event-based method presented in this paper not only can reduce the communication among neighboring agents, but also can determine the event time instants for each agent without using the global information. Furthermore, the Zeno-behavior for the concerned closed-loop system is excluded. Finally, an example is presented to ilhistratc the effectiveness of the obtained theoretical results. | ZHU Wei WANG Dandan ZHOU Qianghui | 2019 | Journal of Systems Science & Complexity2019，32，3： | 6 |
| 2 | Fully distributed consensus of second-order multi-agent systems using adaptive event-based control显示文摘Dear editor, In recent years,the distributed consensus of multiagent systems (MASs)has attracted compelling attention because of its potential applications in many fields such as sensor networks,unmanned aerial vehicle (UAV)formation flying,and multiple signals tracking.The central task in the distributed consensus of MASs is to design distributed control protocols to achieve the consensus using only local information. | Wei ZHU Qianghui ZHOU DANDan WANG Gang FENG | 2018 | Science China(Information Sciences)2018，61，12： | 5 |
| 3 | Adaptive Event-Based Consensus of Multi-Agent Systems with General Linear Dynamics显示文摘在这份报纸,有一般线性动力学的多代理人系统的适应基于事件的一致被考虑。一个新奇适应基于事件的控制器和州依赖者的被触发功能为每个代理人被建议。没有假设,一致能被完成(一, B ) 是 stabilizable。而且,担心的靠近环的系统的 Zeno 行为也在某些条件下面被排除。最后,一个数字模拟例子被举显示出理论结果的有效性。 | WANG Dandan ZHOU Qianghui ZHU Wei | 2018 | Journal of Systems Science & Complexity2018，31，1： | 3 |
| 4 | Quick assembly of 1-alkylidenyl-tetrahydroisoquinolines via a Catellani reaction/NBS-mediated cyclization sequence and synthetic applications显示文摘We herein disclose a modular synthesis of 1-bromomethylene-THIQs involving a Catellani reaction of aryl iodides,aziridines,and terminal alkynes followed by an N-bromosuccinimide(NBS)-mediated cyclization.This approach features mild reaction conditions,wide substrate scope,good step-economy and good scalability.Based on this new method,we have accomplished the concise total synthesis of(±)-cularine,formal synthesis of 8-oxopseudopalmatine as well as the first total synthesis of dactyllactone A,demonstrating the wide synthetic potential of this method. | Shihu Jia Miao Bai Siwei Zhou Ruiqing Sheng Hong-Gang Cheng Qianghui Zhou | 2023 | Science China Chemistry2023，66，11： | 0 |
| 5 | A Lyapunov Approach to Consensus of Linear Multi-Agent Systems with Infinite Distributed Communication Delays显示文摘This paper considers the leaderless consensus problem of linear time-invariant multi-agent systems with infinite distributed communication delays.A novel distributed low gain controller is proposed based on the solution to a parametric algebraic Riccati equation.It is shown via the newly developed Lyapunov-like method that not only the consensus of linear time-invariant multi-agent systems can be achieved exponentially under some mild assumptions but also an estimate of the exponential convergence rate of consensus is given in this work.The Lyapunovlike method is also extended to handle a special case of linear time-varying multi-agent systems.In addition,the obtained results include the results on the leaderless consensus of linear multiagent systems with bounded distributed communication delays as special cases.To the best of our knowledge,this is thefirst work that develops the Lyapunov-like method for the leaderless consensus problems of both time-invariant and time-varying linear multi-agent systems with infinite distributed communication delays.Finally,a numerical example is presented to illustrate the effectiveness of the proposed controller. | Qianghui Zhou Gang Feng Xiang Xu | 2022 | Guidance, Navigation and Control2022，2，3： | 0 |
| 6 | Weighted spectral correlation angle target detection method for land‑based hyperspectral imaging显示文摘In land-based spectral imaging,the spectra of ground objects are inevitably afected by the imaging conditions(weather conditions,atmospheric conditions,light conditions,zenith and azimuth angle conditions)and spatial distribution of targets,leading to uncertainties featured by“same object diferent spectrum”.That is,the spectrum of a ground object may change within a certain range under diferent imaging conditions.Traditional target detection(TD)methods are mainly based on similarity measurements and do not fully account for the spectral uncertainties.These detection methods are prone to false detections or missed detections.Therefore,reducing the impact of spectral uncertainties on TD is an important research topic in hyperspectral imaging.In this paper,we frst review traditional TD methods and compare their principles and characteristics.It is found that the spectral correlation angle(SCA)method has good adaptability in land-based imaging.The shortcoming of the SCA method that it cannot refect the local spectrum characteristics,is also analyzed.As the efect of spectral uncertainties cannot be completely overcome by the SCA method,a new similarity measurement method,the weighted spectral correlation angle(WSCA)method,is proposed.It can reduce the infuence of spectral uncertainties on TD by increasing the weight of particular bands.Finally,we use two sets of experiments to analyze the efect of the WSCA method on TD.Its performance in overcoming spectral uncertainties caused by variations in imaging conditions or uneven spatial distributions of targets is tested.The results show that the WSCA method can efectively reduce the infuence of spectral uncertainties and obtain a good detection result. | Qianghui Wang Bing Zhou Wenshen Hua Jiaju Ying Xun Liu Yue Cheng | 2023 | Frontiers of Optoelectronics2023，16，4： | 0 |
| 7 | Diversity-Oriented Synthesis of Flavones and Isoflavones via Palladium/Norbornene Cooperative Catalysis显示文摘Flavones and isoflavones are recognized as privileged heterocyclic scaffolds for the preparation of bioactive compounds.Efficient methods to access these heterocycles are in urgent need.Herein,we report diversity-oriented synthesis of flavones and isoflavones from 3-iodochromones via palladium/norbornene cooperative catalysis.The success of this research relies on the use of a unique bridge-head ester modified norbornene derivative as the mediator.Salient features of this include readily available starting materi-als regarding 3-iodochromones,ortho-C-H arylating and alkylating reagents and ipso-terminating reagents,broad substrate scope,good chemoselectivity,good step-economy and scalability.A large number of structurally diversified flavones,isoflavones and 2,3-diarylated chromones can be quickly prepared in a predictable manner.As showcased by the efficient formal synthesis of um-bralisib,this chemistry can be treated as another valuable addition to the toolbox of medicinal chemists. | Yuanyuan Ma Qianwen Gao Lan Zhou Shanshan Liu Hong-Gang Cheng Qianghui Zhou | 2022 | Chinese Journal of Chemistry2022，40，6： | 0 |
| 8 | Precise Functionalization of Remote C-H Bonds显示文摘Remote C-H bond functionalization of arenes with precise control is a recognized extraordinary challenge in organic synthesis.Recently.Yu and Houk el al.developed an elegant strategy to distinguish and functionalize remote Csp2-H bonds of(hetero)arenes within one-bond distance by the interplay of a remote directing template and a transient norbornene-type mediator.A wide range of medicinally important benzoazines are well compatible with this method The chemistry significantly expands the toolbox for site-selective functionalization of remote Co2-H bond of(hetero)arenes.This work has been published in Nature Chemistry in March,2020. | LIU Zeshui CHENG Honggang ZHOU Qianghui | 2020 | Chemical Research in Chinese Universities2020，36，4： | 0 |
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