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  1. No Access

    Article

    Analytical libration control law for electrodynamic tether system with current constraint

    This study focuses on stabilizing the libration dynamics of an electrodynamic tether system (EDTS) using generalized torques induced by the Lorentz force. In contrast to existing numerical optimization methods...

    Shidong Xu, Ti Chen, Hao Wen, Dong** ** in Astrodynamics (2024)

  2. Article

    Open Access

    Akkermansia muciniphila Improves Depressive-Like Symptoms by Modulating the Level of 5-HT Neurotransmitters in the Gut and Brain of Mice

    Accumulating evidence has suggested that the gut microbiome plays an important role in depression. Akkermansia muciniphila (AKK), a next-generation probiotic, shows a beneficial effect on immune and metabolic hom...

    Huijuan Guo, **nxu Liu, Ti Chen, ** Wang, **aojie Zhang in Molecular Neurobiology (2024)

  3. No Access

    Chapter and Conference Paper

    Cooperative Control for Rod-Shaped Payload Transportation with Two Quadrotors

    This paper considers the cooperative transport problem of two quadrotors, which is an ideal method for rod-shaped payload transportation in complex and hazardous environments. A Lagrangian system with nine deg...

    Yankai Wang, Ti Chen in Proceedings of the 2nd International Confe… (2024)

  4. No Access

    Chapter and Conference Paper

    Cooperative Transportation of a Flexible Beam Utilizing Dual Space Robot Manipulators

    This study centers on the dynamics and control surrounding the transportation of a flexible beam utilizing two robot manipulators with fixed bases. The dynamics of the transportation system are determined by e...

    Mingyan **e, Chenlu Feng, Ti Chen in Proceedings of 3rd 2023 International Conf… (2024)

  5. No Access

    Chapter and Conference Paper

    On-Orbit Reconfiguration Dynamics and Control of Heterogeneous Intelligent Spacecraft

    An ultra-large space structure constructed by modular intelligent spacecraft can meet the mission requirements of variable environment and multiple working conditions through reconfiguration. This paper focuse...

    Dengliang Liao, **ngyi Pan, **lin Zhong in Advances in Applied Nonlinear Dynamics, Vi… (2024)

  6. No Access

    Article

    Autonomous assembly of multiple flexible spacecraft using RRT* algorithm and input sha** technique

    The on-orbit assembly is an appealing method to build large space structures. To improve the assembly efficiency, each module trends towards a flexible one. How to account for the nonlinear rigid-flexible dyna...

    Ti Chen, Yankai Wang, Hao Wen, Junjie Kang in Nonlinear Dynamics (2023)

  7. No Access

    Chapter

    Graph Theory and Attitude Representations

    The communication between the networked spacecraft can be described by algebraic graphs. This chapter presents some basic knowledge of graph theory. Furthermore, the configuration space of the rigid-body rotat...

    Ti Chen, **jun Shan, Hao Wen in Distributed Attitude Consensus of Multiple… (2023)

  8. No Access

    Chapter

    Distributed Passivity-Based Control with Attitude-Only Measurements

    This chapter focuses on the leader-follower attitude consensus of multiple under-actuated flexible spacecraft without system dam** based on attitude measurements only. By constructing two different kinds of ...

    Ti Chen, **jun Shan, Hao Wen in Distributed Attitude Consensus of Multiple… (2023)

  9. No Access

    Chapter

    Adaptive Fault-tolerant Attitude Tracking on SO(3) Under an Undirected Graph

    This chapter presents the distributed adaptive fault-tolerant control for the attitude tracking of multiple flexible spacecraft on SO(3) without modal variable measurement. Assume that the communication graph amo...

    Ti Chen, **jun Shan, Hao Wen in Distributed Attitude Consensus of Multiple… (2023)

  10. No Access

    Chapter

    Continuous Constrained Attitude Regulation on SO(3)

    In this chapter, both the centralized and distributed attitude regulation of multiple flexible spacecraft are studied on SO(3) with attitude constraints in the absence of the measurements of the angular velocitie...

    Ti Chen, **jun Shan, Hao Wen in Distributed Attitude Consensus of Multiple… (2023)

  11. No Access

    Chapter

    Koopman-Operator-Based Attitude Dynamics and Control on SO(3)

    This chapter presents an attitude control method based on Koopman operator theory. A set of observables is discovered to represent the nonlinear attitude dynamics on SO(3) using an infinite-dimensional linear sys...

    Ti Chen, **jun Shan, Hao Wen in Distributed Attitude Consensus of Multiple… (2023)

  12. No Access

    Chapter

    Literature Review

    In the past two decades, spacecraft attitude coordination has gained significant developments. This chapter aims to present a survey of recent research on the spacecraft attitude consensus problem, paying part...

    Ti Chen, **jun Shan, Hao Wen in Distributed Attitude Consensus of Multiple… (2023)

  13. No Access

    Chapter

    Rotation-Matrix-Based Attitude Tracking Under an Undirected Tree Graph

    This chapter studies the distributed leader-follower consensus for multiple flexible spacecraft with actuator faults under an undirected tree graph. The attitudes of the networked flexible spacecraft are repre...

    Ti Chen, **jun Shan, Hao Wen in Distributed Attitude Consensus of Multiple… (2023)

  14. No Access

    Chapter

    Distributed Attitude Tracking and Synchronization on SO(3) Under Directed Graphs

    Distributed adaptive controllers are developed for attitude tracking and synchronization on SO(3) of multiple flexible spacecraft under a directed graph. Since not all spacecraft can receive the virtual leader’s ...

    Ti Chen, **jun Shan, Hao Wen in Distributed Attitude Consensus of Multiple… (2023)

  15. No Access

    Chapter

    Continuous Leaderless Synchronization Control of Multiple Rigid Spacecraft on SO(3)

    This chapter presents a solution to the leaderless consensus of multiple spacecraft on SO(3) under a connected undirected graph. An algorithm is proposed to generate an undirected tree graph from a communication ...

    Ti Chen, **jun Shan, Hao Wen in Distributed Attitude Consensus of Multiple… (2023)

  16. No Access

    Book

  17. No Access

    Article

    Review of attitude consensus of multiple spacecraft

    A group of cooperative agents can finish complicated missions that are difficult for a large machine. In the past two decades, spacecraft attitude coordination has attracted significant research attention owin...

    Ti Chen, **jun Shan, Hao Wen, Shidong Xu in Astrodynamics (2022)

  18. No Access

    Chapter and Conference Paper

    Continuous Leaderless Synchronization Control of Multiple Spacecraft on SO(3)

    This paper presents a solution to the leaderless consensus of multiple spacecraft on SO(3) under a connected undirected graph. An algorithm is proposed to generate an undirected tree graph from the communication ...

    Ti Chen in Advances in Nonlinear Dynamics (2022)

  19. No Access

    Article

    Continuous leaderless synchronization control of multiple spacecraft on SO(3)

    This paper presents a solution to the leaderless consensus of multiple spacecraft on SO(3) under a connected undirected graph. An algorithm is proposed to generate an undirected tree graph from a connected undire...

    Ti Chen in Astrodynamics (2021)

  20. No Access

    Article

    Lactic Acid Produced by Glycolysis Contributed to Staphylococcus aureus Aggregation Induced by Glucose

    High concentration of glucose induces Staphylococcus aureus (S. aureus) aggregation, but the mechanism of this is still unclear. In this study, the aggregation of S. aureus strains was induced by high concentrati...

    Zhen Luo, Meilin Chen, Ti Chen, Pengfei She, Yong Wu in Current Microbiology (2019)

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