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Hybrid Adaptive Event-Triggered Consensus Control with Intermittent Communication and Control Updating

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Journal of Systems Science & Complexity 2024年第6期37卷 2390-2405页

作者： yuan shuo YU Chengpu SUN Jian School of Automation Beijing Institute of TechnologyBeijing 100081China Beijing Institute of Technology Chongqing Innovation Center Chongqing 401120China

This paper studies the distributed consensus control for linear multi-agent systems under discontinuous communication and control updating.A fully distributed event-triggered adaptive control protocol with strictly positive minimum interevent time(MIET)guarantees is ***,an event-triggered distributed adaptive control law without using prior global information of network topologies is presented,which achieves asymptotic consensus via discrete control updating and intermittent ***,a hybrid adaptive event-triggering scheme with an internal timer is designed that is activated only when the timer decreases to zero from a specified positive *** the proposed triggering scheme,not only Zeno behavior is excluded but also a strictly positive MIET between any two consecutive events is guaranteed,which facilitates the physical *** contrast to the existing related results,the proposed fully distributed protocol only needs low-frequency communication and control updating,while ensuring the strictly positive MIET ***,a simulation example is given to illustrate the effectiveness of the theoretical results.

关键词： Adaptive event-triggered control consensus discrete control updating intermittent communication positive minimum interevent time

Uncoupled PID Control of Coupled Multi-Agent Nonlinear Uncertain Systems

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Journal of Systems Science & Complexity 2018年第1期31卷 4-21页

作者： yuan shuo ZHAO Cheng GUO Lei LSC Institute of Systems Science Academy of Mathematics and Systems Science Chinese Academy of Sciences Beijing 100190 China. School of Mathematical Sciences University of Chinese Academy of Sciences Beijing 100049 China LSC Institute of Systems Science Academy of Mathematics and Systems Science Chinese Academy of Sciences Beijing 100190 China

In this paper, PID（proportional-integral-derivative） controllers will be designed to solve the tracking problem for a class of coupled multi-agent systems, where each agent is described by a second-order high-dimensional nonlinear uncertain dynamical system, which only has access to its own tracking error information and does not need to communicate with others. This paper will show that a 3-dimensional manifold can be constructed based on the information about the Lipschitz constants of the system nonlinear dynamics, such that whenever the three parameters of each PID controller are chosen from the manifold, the whole multi-agent system can be stabilized globally and the tracking error of each agent approaches to zero asymptotically. For a class of coupled first-order multi-agent nonlinear uncertain systems, a PI controller will be designed to stabilize the whole system.

关键词： Coupled multi-agent system global stability Lipschitz condition nonlinear uncertain dynamics PID controller

Software defined intelligent satellite-terrestrial integrated networks:Insights and challenges

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Digital Communications and Networks 2023年第6期9卷 1331-1339页

作者： shuo yuan Mugen Peng Yaohua Sun Xiqing Liu The State Key Laboratory of Networking and Switching Technology Beijing University of Posts and TelecommunicationsBeijing100876China

Satellite-Terrestrial integrated Networks(STNs)have been advocated by both academia and industry as a promising network paradigm to achieve service continuity and ***,STNs suffer from problems including poor flexibility of network architecture,low adaptability to dynamic environments,the lack of network intelligence,and low resource *** handle these challenges,a Software defined Intelligent STN(SISTN)architecture is ***,the hierarchical architecture of the proposal is described and a distributed deployment scheme for SISTNs controllers is proposed to realize agile and effective network management and ***,three use cases in SISTNs are ***,key techniques and their corresponding solutions are presented,followed by the identification of several open issues in SISTNs including compatibility with existing networks,the tradeoff between network flexibility and performance,and so on.

关键词： Satellite-terrestrial network Software-defined network Artificial intelligence Reconfigurable networking

The Game Theoretical Approach for Multi-phase Complex Systems in Chemical Engineering

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Journal of Systems Science & Complexity 2017年第1期30卷 4-19页

作者： LI Yan MU Yifen yuan shuo GUO Lei Beijing National Day School Beijing 100039 China Key Lab of Systems and Control Institute of Systems Science Academy of Mathematics and Systems ScienceChinese Academy of Sciences Beijing 100190 China

This paper explores the application of noncooperative game theory together with the concept of Nash equilibrium to the investigation of some basic problems on multi-scale structure, especially the meso-scale structure in the multi-phase complex systems in chemical engineering. The basis of this work is the energy-minimization-multi-scale （EMMS） model proposed by Li and Kwauk （1994） and Li, et al. （2013） which identifies the multi-scale structure as a result of ＇compromise-in-competition between dominant mechanisms＇ and tries to solve a multi-objective optimization problem. However, the existing methods often integrate it into a problem of single objective optimization, which does not clearly reflect the ＇compromise-in-competition＇ mechanism and causes heavy computation burden as well as uncertainty in choosing suitable weighting factors. This paper will formulate the compromise in competition mechanism in EMMS model as a noncooperative game with constraints, and will describe the desired stable system state as a generalized Nash equilibrium. Then the authors will investigate the game theoretical approach for two typical systems in chemical engineering, the gas-solid fluidiza- tion （GSF） system and turbulent flow in pipe. Two different cases for generalized Nash equilibrinm in such systems will be well defined and distinguished. The generalize Nash equilibrium will be solved accurately for the GSF system and a feasible method will be given for turbulent flow in pipe. These results coincide with the existing computational results and show the feasibility of this approach, which overcomes the disadvantages of the existing methods and provides deep insight into the mechanisms of multi-scale structure in the multi-phase complex systems in chemical engineering.

关键词： Game theory gas-solid fluidization generalized Nash equilibrium multi-phase complexsystems turbulent flow.

Decentralized PID Control of Multi-agent Systems with Nonlinear Uncertain Dynamics 36

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Decentralized PID Control of Multi-agent Systems with Nonlin...

Olfactory responses of Aphidius gifuensis to odors of host plants and aphid-plant complexes

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作者： shuo yuan Cheng Zhao Lei Guo Key Laboratory of Systems and Control Academy of Mathematics and Systems ScienceChinese Academy of Sciences

ISBN: (纸本)9781538629185

In this study,a decentralized PID controller is proposed to solve the tracking problem for a class of multi-agents systems,where each agent is described by a second order nonlinear uncertain dynamical system,which only has access to its own tracking error information and does not need to communicate with *** will show that a 3-dimensional manifold can be constructed based on the information about all the Lipschitz constants of the multi-agent systems,such that whenever the three parameters of each PID controller are chosen from this manifold,the whole system can be stabilized globally and the tracking error of each agent approaches to zero asymptotically.A simulation example is given to illustrate the theoretical results.

关键词： PID controller decentralized regulation nonlinear uncertain system Lipschitz condition global stability

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Insect Science 2009年第6期16卷 503-510页

作者： Song Yang Rui Xu shuo-yuan Yang Rong-Ping Kuang Key Laboratory of Forest Disaster Warning and Control in Yunnan Province Southwest Forestry University Kunming Life Sciences School Yunnan University Kunming Yuxi Tobacco Co. Ltd. Yuxi Yunnan Province China

The olfactory responses ofAphidius gifuensis to odors from two host plants （Nicotiana tabacum and Brassica napus ssp.） and their complexes with different infestation levels of two host aphids （Myzuspersicae and Lipaphis erysimi） were respectively examined in an olfactometer. The results showed that female A. gifuensis did not respond to odors of undamaged or mechanically damaged host plants, but significantly responded to odors of aphid/plant complexes. Moreover, A. gifuensis responded significantly to odors of both M. persicae and L. erysimi/plant complexes when host plants were infested by high levels of aphids, suggesting that quantity of aphid-induced volatiles could be important for attracting A. gifuensis. When tested between aphid/plant complexes, .4. gifuensis did not show its preference for either complex. The efficiency of.4. gifuensis against aphids in open fields potentially could be improved by using its olfactory response to aphid/plant complexes.

关键词： Aphidius gifuensis host location Lipaphis erysimi Myzus persicae olfaction plant odor

Dynamical Dark Energy in Light of Cosmic Distance Measurements.Ⅰ.A Demonstration Using Simulated Datasets

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Research in Astronomy and Astrophysics 2024年第6期24卷 7-14页

作者： Gan Gu Xiaoma Wang Xiaoyong Mu shuo yuan Gong-Bo Zhao National Astronomical Observatories Chinese Academy of SciencesBeijing 100101China University of Chinese Academy of Sciences Beijing 100049China Institute for Frontiers in Astronomy and Astrophysics Beijing Normal UniversityBeijing 102206China

We develop methods to extract key dark energy information from cosmic distance measurements including the BAO scales and supernova(SN) luminosity *** using simulated data sets of the complete DESI,LSST and Roman surveys designed for BAO and SN distance measurements,we show that using our method,the dynamical behavior of the energy,pressure,equation of state(with its time derivative) of dark energy and the cosmic deceleration function can all be accurately recovered from high-quality data,which allows for robust diagnostic tests for dark energy models.

关键词： (cosmology:)dark energy (cosmology:)large scale structure of universe (cosmology:)cosmic background radiation (cosmology:)cosmological parameters

Dynamical Dark Energy in Light of Cosmic Distance Measurements.Ⅱ.A Study Using Current Observations

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Research in Astronomy and Astrophysics 2024年第6期24卷 15-20页

作者： Xiaoma Wang Gan Gu Xiaoyong Mu shuo yuan Gong-Bo Zhao National Astronomical Observatories Chinese Academy of SciencesBeijing 100101China University of Chinese Academy of Sciences Beijing 100049China Institute for Frontiers in Astronomy and Astrophysics Beijing Normal UniversityBeijing 102206China

We extract key information on dark energy from current observations of BAO,OHD and H_(0),and find hints of dynamical behavior of dark *** particular,a dynamical dark energy model whose equation of state crosses-1 is f... 详细信息

关键词： Cosmology (cosmology:)dark energy cosmology:observations

Lipid metabolism, amino acid metabolism, and prostate cancer: a crucial metabolic journey

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Asian Journal of Andrology 2024年第2期26卷 123-134页

作者： Lin Chen Yu-Xin Xu yuan-shuo Wang Jian-Liang Zhou School of Pharmacy Hangzhou Normal UniversityHangzhou 311121China Key Laboratory of Elemene Class Anti-Cancer Chinese Medicines Collaborative Innovation Center of Traditional Chinese Medicines of Zhejiang Province Hangzhou Normal UniversityHangzhou 311121China School of Pharmacy Guangxi Medical UniversityNanning530021China

Prostate cancer(PCa)is one of the most common malignancies in males worldwide,and its development and progression involve the regulation of multiple metabolic *** in lipid metabolism affect the proliferation and metastatic capabilities of PCa *** cells increase lipid synthesis and regulate fatty acid oxidation to meet their growth and energy ***,changes occur in amino acid metabolism in *** cells exhibit an increased demand for specific amino acids,and they regulate amino acid transport and metabolic pathways to fulfill their proliferation and survival *** changes are closely associated with disease progression and treatment response in PCa ***,a comprehensive investigation of the metabolic characteristics of PCa is expected to offer novel insights and approaches for the early diagnosis and treatment of this disease.

关键词： amino acid metabolism lipid metabolism metabolic pathways prostate cancer treatment strategies