Article
Automation & Control Systems
Vladimir Kucera
Summary: This article presents a new solution to the long-standing problem of system decoupling in control theory, using static state feedback to achieve decoupling while maintaining system stability. By avoiding restrictive assumptions on the system, this method can effectively address limitations found in traditional decoupling techniques.
IEEE TRANSACTIONS ON AUTOMATIC CONTROL
(2021)
Article
Automation & Control Systems
Ahmed Alsaedi, Jinde Cao, Bashir Ahmad, Ahmed Alshehri, Xuegang Tan
Summary: This article proposes a distributed adaptive control scheme for second-order leader-following multiagent systems with only position information as output. An auxiliary network is used to estimate unmeasurable velocity information and make the output-based distributed adaptive control protocol effective. The distributed synchronization criteria are established, and the convergence analysis is provided based on the stability theory. Several simulation examples are presented to validate the proposed criteria.
IEEE TRANSACTIONS ON SYSTEMS MAN CYBERNETICS-SYSTEMS
(2023)
Article
Automation & Control Systems
Shuyuan Zhang, Lei Wang, Bai Xue, Chanying Li, Qing-Guo Wang
Summary: This article focuses on the consensus verification of heterogeneous polynomial networked systems (HPNSs) using a distributed nonlinear control protocol. The necessary condition for achieving consensus for HPNSs is presented, and multiple consensus criteria are proposed using polynomial Lyapunov functions under undirected and directed graphs. Compared to existing criteria based on quadratic Lyapunov functions, the results are less conservative and more general. The consensus verification problem is then transformed into a sum-of-squares optimization problem for finding polynomial Lyapunov functions. The theoretical and algorithmic developments are demonstrated through numerical examples, showing the effectiveness of the proposed method for fully automatic consensus verification of HPNSs.
JOURNAL OF THE FRANKLIN INSTITUTE-ENGINEERING AND APPLIED MATHEMATICS
(2023)
Article
Automation & Control Systems
Yuxiang Hu, Xuewu Dai, Dongliang Cui, Tianyou Chai
Summary: This article investigates the detection and identification of physical faults in devices and false-data-injection attacks in communication networks for multi-agent systems. A new detection and identification scheme is proposed, which enables the decoupling of periodic disturbances from the residuals for detection and identification, reducing communication overhead and enhancing system security.
IEEE TRANSACTIONS ON INDUSTRIAL INFORMATICS
(2023)
Article
Automation & Control Systems
Qinghua Hou, Jiuxiang Dong
Summary: This article discusses the distributed fault-tolerant consensus control problem of linear multiagents with disturbances. For undirected graphs, adaptive control coefficients are introduced to achieve fully distributed multiagent reliable control, eliminating the assumption of prior knowledge of global information. In addition, the limitation of continuous communication among agents is removed by developing an open-loop estimation and event-triggering mechanism (ETM). The effectiveness of the suggested scheme is demonstrated through simulation examples.
IEEE TRANSACTIONS ON SYSTEMS MAN CYBERNETICS-SYSTEMS
(2023)
Article
Automation & Control Systems
Tessina H. Scholl, Lutz Groell
Summary: This article introduces a delay-dependent stability criterion and a necessary and sufficient delay-independent stability criterion for linear autonomous continuous-time systems with a discrete delay. The presented criteria are based on a simple perspective of the two-variable formulation of the characteristic equation. The article also discusses the graphical test for the delay-independent criterion and formulates a constrained minimization problem to determine the critical delay for delay-dependent stability.
IEEE TRANSACTIONS ON AUTOMATIC CONTROL
(2023)
Article
Computer Science, Artificial Intelligence
Dongdong Yue, Jinde Cao, Qi Li, Qingshan Liu
Summary: This article presents a new approach for distributed neuroadaptive consensus in uncertain multiagent systems. By constructing robust consensus controllers, the asymptotic convergence of consensus errors is theoretically proved. A key feature of this method is the fully distributed nature of information, without the need for underlying Laplacian eigenvalues or input upper bounds of leaders.
IEEE TRANSACTIONS ON NEURAL NETWORKS AND LEARNING SYSTEMS
(2021)
Article
Automation & Control Systems
Lucia Valentina Gambuzza, Mattia Frasca
Summary: The paper addresses the problem of steering a multiagent system to multiconsensus, utilizing distributed proportional controllers. It investigates the stability and conditions for gain of the controllers in achieving multiconsensus state. Furthermore, the approach is extended to controllers that alter the original structure while preserving weak connectedness in the resulting graph.
IEEE TRANSACTIONS ON AUTOMATIC CONTROL
(2021)
Article
Computer Science, Artificial Intelligence
Weizhao Song, Jian Feng, Huaguang Zhang, Wei Wang
Summary: This article investigates the time-varying output formation issue in heterogeneous multiagent systems using the event-triggered control scheme. It presents a fully distributed control protocol that allows each follower agent to track the desired formation independently of the global information of the communication topology. Numerical and comparison experiments are conducted to verify the effectiveness of the control protocol.
IEEE TRANSACTIONS ON NEURAL NETWORKS AND LEARNING SYSTEMS
(2023)
Article
Automation & Control Systems
Weile Chen, Haibo Du, Chih-Chiang Chen
Summary: This paper considers the consensus problem for second-order multiagent systems based on nonsmooth sampled-data control. A continuous-time nonsmooth consensus protocol and a discrete-time nonsmooth protocol are proposed. Theoretical analysis and simulation examples demonstrate that the nonsmooth control algorithm has a stronger ability to resist external disturbance compared to the smooth control algorithm.
IEEE TRANSACTIONS ON SYSTEMS MAN CYBERNETICS-SYSTEMS
(2023)
Article
Automation & Control Systems
Jilie Zhang, Tao Feng, Huaguang Zhang, Xiaomin Wang
Summary: This article studies a decoupling cooperative control method with state feedback for solving the output consensus problem on heterogeneous multiagent systems. By using the communication topology and a mapping L-d of Laplacian matrix L, the method forces each agent to reach a consensus on the given trajectory and solves the equivalent stabilization problem. It also solves the assignment problem of the dominant poles for each agent.
IEEE TRANSACTIONS ON SYSTEMS MAN CYBERNETICS-SYSTEMS
(2022)
Article
Engineering, Electrical & Electronic
Shidong Zhai, Wei Xing Zheng
Summary: This paper investigates the stability issue of cluster synchronization manifold in networks of diffusively-coupled nonlinear system with directed topology. Theoretical findings are validated by numerical examples about coupled Lorenz-like system and coupled Hopfield neural network, respectively.
IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS I-REGULAR PAPERS
(2023)
Article
Automation & Control Systems
Jie Zhang, Da-Wei Ding, Yanrong Lu, Chao Deng, Yingying Ren
Summary: This article studies the problem of output synchronization for multiagent systems with process faults and proposes a distributed fault-tolerant bipartite output synchronization control method.
IEEE TRANSACTIONS ON CYBERNETICS
(2023)
Article
Computer Science, Artificial Intelligence
Shengli Du, Wenying Xu, Junfei Qiao, Daniel W. C. Ho
Summary: This article investigates the resilient output synchronization problem of a linear heterogeneous multiagent system subjected to denial-of-service attacks. Two control mechanisms, event-triggered and self-triggered, are presented to reduce unnecessary information transmission. The quantitative relationship between the attributes of the DoS attacks and synchronization is revealed. The validity of the provided mechanisms is verified through a simulation example.
IEEE TRANSACTIONS ON NEURAL NETWORKS AND LEARNING SYSTEMS
(2023)
Article
Computer Science, Artificial Intelligence
Shiping Wen, Xiaoze Ni, Huamin Wang, Song Zhu, Kaibo Shi, Tingwen Huang
Summary: This article focuses on the observer-based adaptive synchronization of multiagent systems (MASs) with unknown parameters under attacks. It introduces an observer for state estimation and an adaptive controller to eliminate the effects of unknown parameters caused by disturbances. By analyzing the impact of attacks and providing a security control law, the synchronization of MASs under attacks is ensured.
IEEE TRANSACTIONS ON NEURAL NETWORKS AND LEARNING SYSTEMS
(2022)
Article
Automation & Control Systems
Yamin Yan, Zhiyong Chen, Vijay Varadharajan
Summary: This paper aims to create a secure environment for state estimation and control design of a networked system in the presence of disclosure attacks. The proposed methodology integrates a double-layer cryptographic technique with an observer-based control algorithm to protect the input and output data of benign entities from malicious attacks and ensure secure transmission over the network.
JOURNAL OF THE FRANKLIN INSTITUTE-ENGINEERING AND APPLIED MATHEMATICS
(2023)
Article
Chemistry, Multidisciplinary
Caifu Dong, Hengjia Shao, Yanli Zhou, Wei Du, Lin Li, Jianchao Sun, Zhenhua Yan, Zhe Hu, Shulei Chou, Fuyi Jiang
Summary: Potato chip-like nitrogen-doped carbon-coated ZnS/Sb2S3 heterojunction (ZnS/Sb2S3@NC) is synthesized through a sulfurization reaction and metal cation exchange process. The ZnS/Sb2S3@NC electrode exhibits excellent cycling stability and rate performance, making it a promising electrode material for sodium-ion batteries.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Microbiology
Cherrelle Dacon, Linghang Peng, Ting-Hui Lin, Courtney Tucker, Chang-Chun D. Lee, Yu Cong, Lingshu Wang, Lauren Purser, Andrew J. R. Cooper, Jazmean K. Williams, Chul-Woo Pyo, Meng Yuan, Ivan Kosik, Zhe Hu, Ming Zhao, Divya Mohan, Mary Peterson, Jeff Skinner, Saurabh Dixit, Erin Kollins, Louis Huzella, Donna Perry, Russell Byrum, Sanae Lembirik, Michael Murphy, Yi Zhang, Eun Sung Yang, Man Chen, Kwanyee Leung, Rona S. Weinberg, Amarendra Pegu, Daniel E. Geraghty, Edgar Davidson, Benjamin J. Doranz, Iyadh Douagi, Susan Moir, Jonathan W. Yewdell, Connie Schmaljohn, Peter D. Crompton, John R. Mascola, Michael R. Holbrook, David Nemazee, Ian A. Wilson, Joshua Tan
Summary: In this study, 55 monoclonal antibodies were identified from COVID-19 convalescent donors that can bind diverse betacoronavirus spike proteins. Most antibodies targeted a non-neutralizing S2 epitope, but 11 antibodies targeting the stem helix showed neutralizing activity against different betacoronavirus lineages. These findings revealed a class of IGHV1-46/IGKV3-20 antibodies that can broadly neutralize betacoronaviruses by targeting the stem helix.
CELL HOST & MICROBE
(2023)
Article
Green & Sustainable Science & Technology
Fucheng Guo, Jianzhong Pei, Guojing Huang, Zhe Hu, Zhenxing Niu, Augusto Cannone Falchetto
Summary: This study investigates the influence of regular macro-texture characteristics and environmental factors on friction using 3D printing technology. The results show that different texture shapes, heights, and gaps can contribute to large friction under dry conditions, but the friction sharply decreases under wet conditions, especially for the semi-circular texture specimens. This study provides a friction-oriented pavement texture design method and manufacturing technology.
JOURNAL OF CLEANER PRODUCTION
(2023)
Article
Chemistry, Multidisciplinary
Lingfei Zhao, Ying Tao, Wei-Hong Lai, Zhe Hu, Jian Peng, Yaojie Lei, Yuliang Cao, Shu-Lei Chou, Yun-Xiao Wang, Hua Kun Liu, Shi Xue Dou
Summary: Sodium (Na) metal anodes are potential candidates for high-energy density and high-power density batteries, but the dendrite growth of Na metal limits their practical applications. Oxygen-rich functional groups can be introduced into carbon fiber cloth to achieve superwettability, providing a wettable matrix to retain liquid Na-K alloy and achieve stable cycling. This concept of enthalpy-driven wettability regulation can be applied to the design of host materials for other liquid metals and alloys.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Chemistry, Physical
Dongyuan Lei, Jinkui Li, Mingwu Xiang, Zirui Zhao, Shixun Yang, Zhe Hu, Mingwei Yuan, Junming Guo, Yi Xia, Wei Bai
Summary: In this study, a material composed of nitrogen-doped porous carbon derived from waste passiflora edulis peel (PINPC) and three-dimensional hollow carbon cloth interlayer (3DHCI) was designed. The PINPC effectively adsorbs polysulfides, while the high conductivity of 3DHCI accelerates the conversion reaction of polysulfides. The resulting sulfur cathode composites exhibit excellent electrochemical performances and can be easily regulated to have a high sulfur content.
APPLIED SURFACE SCIENCE
(2023)
Article
Chemistry, Multidisciplinary
Hanqing Dai, Wenqing Dai, Yuanyuan Chen, Yukun Yan, Guangzheng Zuo, Zhe Hu, Jinxin Wei, Wenjie Zhou, Wanlu Zhang, Wei Wei, Guoqi Zhang, Ruiqian Guo
Summary: This research presents a novel approach to synthesizing the low-cost and pollution-free NaFe3S5 center dot 2H(2)O (NFS) using the high-pressure hydrothermal method based solely on its chemical formula. An innovative strategy inspired by the cicada's molting process is also proposed. The mechanical, thermal, optical, electrochemical, and magnetic properties of NFS are thoroughly investigated. This study bridges the gap in the sulfide mineral family, overcomes limitations of the high-pressure hydrothermal method, and paves the way for future synthesis of natural minerals, lunar minerals, and Martian minerals.
Article
Fisheries
Xiaobing Lu, Zhe Hu, Hao Huang, Meisheng Yi, Kuntong Jia
Summary: MOV10 is highly expressed in the blood of sea perch and its expression can be activated by IFNc, IFNh, and IFN & gamma;. VHSV infection upregulates MOV10 expression and enhances IFNh expression, showing strong antiviral activity. This study provides a basis to investigate the immune escape of VHSV.
FISH & SHELLFISH IMMUNOLOGY
(2023)
Review
Chemistry, Applied
Xiang Lan, Xinyu Zhang, Lei Wang, Haiyan Wang, Zhe Hu, Xiaochen Ju, Yongkai Yuan
Summary: The application of zein in food preservation was discussed from the perspectives of coating and film. The study of coating focused on edibility, while the study of film involved the use of plasticizers for improved mechanical properties, nanoparticles for barrier and antibacterial performance, polyphenols for antibacterial and antioxidant properties, and other biopolymers for complementarity with zein. Future research should consider the interaction between edible coatings and food matrix, the mechanism of additives and zein in films, food safety, large-scale application, and the development of intelligent response in zein-based films.
Review
Chemistry, Applied
Xiang Lan, Yueyue Liu, Lei Wang, Haiyan Wang, Zhe Hu, Hao Dong, Zhiwen Yu, Yongkai Yuan
Summary: As a natural polyphenol, curcumin has been used as an alternative to synthetic preservatives in food preservation. This paper focuses on the perspective of the delivery system and photosensitization of curcumin for food preservation. The practical effects of the delivery system and photosensitization of curcumin on various foods were comprehensively summarized.
Article
Automation & Control Systems
Lijun Long, Fenglan Wang, Zhiyong Chen
Summary: This article focuses on the robust adaptive event-triggered control (ETC) problem for switched nonlinear systems. A novel robust adaptive controller is constructed based on a common virtual control Lyapunov function method and backstepping. The dynamic ETC (DETC) strategy is integrated into the switching controller to address the challenges caused by the interaction of switching and triggering instants. The proposed solution guarantees global asymptotic stability and exclusion of Zeno behavior for the closed-loop system, and is applicable to a larger class of switched nonlinear systems.
IEEE TRANSACTIONS ON AUTOMATIC CONTROL
(2023)
Article
Automation & Control Systems
Zhixin Zhang, Zhiyong Chen
Summary: This paper investigates the problem of fault estimation and tolerant control for large-scale systems composed of multiple subsystems with second-order nonlinear dynamics. A novel representation of faults based on structural information is utilized to design a distributed fault estimation observer and a fault tolerance controller. The practical application to high-speed trains demonstrates the effectiveness of the proposed scheme.
IEEE TRANSACTIONS ON CONTROL SYSTEMS TECHNOLOGY
(2023)
Article
Automation & Control Systems
Shimin Wang, Hongwei Zhang, Zhiyong Chen
Summary: This article examines the cooperative tracking problem of heterogeneous Euler-Lagrange systems with an uncertain leader. Unlike existing studies, the article assumes that the follower nodes do not have access to the system dynamic knowledge of the leader node. Distributed adaptive observers are designed for all follower nodes to estimate the state and parameters of the leader node simultaneously. The observer design does not rely on the frequency knowledge of the leader node, and the estimation errors converge to zero exponentially. The article also introduces two newly developed Lyapunov equations that allow the results to be applied to general directed graphs.
IEEE TRANSACTIONS ON AUTOMATIC CONTROL
(2023)
Article
Automation & Control Systems
Yi Huang, Wentuo Fang, Zhiyong Chen, Yonggang Li, Chunhua Yang
Summary: This article investigates the nonuniform and nonconvex input-constrained flocking control problem of continuous-time multiagent systems. A distributed flocking control algorithm is proposed for each agent using the local information from its neighbor agents subject to nonuniform and nonconvex control constraints. Based on a constraint scaling factor and a specific coordinate transformation, a Lyapunov function is constructed to address the nonlinearities caused by input constraints. It is proved that all agents from an explicitly specified region of initial states eventually converge to a common point with the same velocity, while each agent's inputs remain within its own constrained nonconvex set. A simulation example is given to demonstrate the effectiveness of the theoretical results.
IEEE TRANSACTIONS ON AUTOMATIC CONTROL
(2023)
Article
Automation & Control Systems
Bolin Li, Lijun Zhu, Zhiyong Chen
Summary: This article presents an improved fractional-order active disturbance rejection control scheme to approximate the open-loop transfer function of an uncertain system. The proposed controller improves the system's robustness and uses an improved fractional-order extended state observer for better estimation performance. Compared to conventional controllers, the proposed scheme has a simpler form, better transient performance, and more robustness against parameter variation.
IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS
(2023)
