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  1. Article

    Open Access

    Association of weight-adjusted-waist index with non-alcoholic fatty liver disease and liver fibrosis: a cross-sectional study based on NHANES

    The purpose of this study was to explore the association of weight-adjusted-waist index (WWI) with non-alcoholic fatty liver disease (NAFLD) and liver fibrosis.

    Qinggang Hu, Kexing Han, Jiapei Shen, Weijie Sun in European Journal of Medical Research (2023)

  2. No Access

    Article

    Microbially induced carbonate precipitation for improving the internal stability of silty sand slopes under seepage conditions

    Biocementation based on the microbially induced carbonate precipitation (MICP) process can be used as a soil improvement method to improve the mechanical strength of granular soils. In this study, triaxial con...

    Lei Hang, Yufeng Gao, Leon A. van Paassen, Jia He, Liya Wang, Chi Li in Acta Geotechnica (2023)

  3. Article

    Open Access

    The association between blood manganese and liver stiffness in participants with chronic obstructive pulmonary disease: a cross-sectional study from NHANES 2017–2018

    To explore the relationship between blood manganese and liver stiffness in the United States among participants with chronic obstructive pulmonary disease (COPD).

    Kexing Han, Jiapei Shen, Kexuan Tan, Jiaying Liu in European Journal of Medical Research (2023)

  4. No Access

    Chapter

    Conclusion

    The research in this book provides a series of high-precision constrained control methods based on performance guaranteed and explicit settling time for the more complex control problems of spacecraft on-orbit...

    Yufeng Gao, Dongyu Li in Spacecraft Maneuver with Performance Guaranteed (2023)

  5. No Access

    Chapter

    Introduction

    The concept of spacecraft On-Orbit Service (OOS) was first proposed in the 1960s and has been widely practiced in subsequent practical missions [1, 2]. The spacecraft on-orbit servicing tasks typically include...

    Yufeng Gao, Dongyu Li in Spacecraft Maneuver with Performance Guaranteed (2023)

  6. No Access

    Chapter

    Spacecraft Performance Guaranteed Asymptotic Control with Settling Time Constraints

    In spacecraft on-orbit service missions, strict state constraints and more precise control are essential guarantees for mission success. Effective constraints on the time-domain response parameters of the clos...

    Yufeng Gao, Dongyu Li in Spacecraft Maneuver with Performance Guaranteed (2023)

  7. No Access

    Chapter

    Spacecraft Performance Guaranteed Control with Improved Transient Performance

    The attitude tracking control algorithm design for the on-orbit service spacecraft needs to consider strict performance constraints and control accuracy for mission precision control and safety requirements. S...

    Yufeng Gao, Dongyu Li in Spacecraft Maneuver with Performance Guaranteed (2023)

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    Chapter

    Spacecraft Finite-Time Performance Guaranteed Control with Command Filter

    The attitude control system of the on-orbit service spacecraft has control design requirements such as precise motion and safety assurance. Moreover, the actuators in the existing system have practical constra...

    Yufeng Gao, Dongyu Li in Spacecraft Maneuver with Performance Guaranteed (2023)

  9. No Access

    Chapter

    Performance Guaranteed Non-Zero-Sum Games for Multiple Spacecraft

    In the on-orbit service spacecraft rendezvous and docking mission or the multi-spacecraft attitude coordination mission, the service spacecraft and the target spacecraft often need to reach an attitude consist...

    Yufeng Gao, Dongyu Li in Spacecraft Maneuver with Performance Guaranteed (2023)

  10. No Access

    Chapter

    Distributed Coordinated Control for Network Systems with Full-State Constraints

    This chapter addresses the distributed coordinated tracking problem for network systems modeled by Euler-Lagrange systems (ELSs), where full-state constraints (FSCs) and model uncertainties are considered. We ...

    Yufeng Gao, Dongyu Li in Spacecraft Maneuver with Performance Guaranteed (2023)

  11. No Access

    Book

    Spacecraft Maneuver with Performance Guaranteed

    Control, Games, and Cooperation

    Yufeng Gao, Dongyu Li (2023)

  12. No Access

    Chapter

    Formation-Containment Control for Networked Spacecraft with Output Feedback

    This chapter addresses the distributed formation-containment (DFC) problem for multiple spacecraft systems with model uncertainties via output feedback in both constant and time-varying formation cases. First,...

    Yufeng Gao, Dongyu Li in Spacecraft Maneuver with Performance Guaranteed (2023)

  13. No Access

    Chapter

    Formation-Containment Control for Networked Spacecraft in Constrained Space

    This chapter addresses the layered formation-containment (LFC) problem for multi-spacecraft in the constrained space with a directed communication topology. The formation-containment problem is first defined u...

    Yufeng Gao, Dongyu Li in Spacecraft Maneuver with Performance Guaranteed (2023)

  14. No Access

    Chapter

    Spacecraft Model and Preliminaries

    The performance guaranteed control problem for spacecraft is solved by the designed control algorithms in this book. For the single spacecraft system and the proposed control algorithms, its related attitude mode...

    Yufeng Gao, Dongyu Li in Spacecraft Maneuver with Performance Guaranteed (2023)

  15. No Access

    Chapter

    Spacecraft Finite-Time Performance Guaranteed Control

    For the attitude control system of the on-orbit service spacecraft with strong motion constraints and high control precision requirements, this chapter proposes the finite-time performance guaranteed control a...

    Yufeng Gao, Dongyu Li in Spacecraft Maneuver with Performance Guaranteed (2023)

  16. No Access

    Chapter

    Spacecraft Performance Guaranteed Control with Command Filter

    In order to ensure the stability and safety of the on-orbit service spacecraft attitude motion, the attitude tracking system often enhances the strict state performance guaranteed design requirements. The perf...

    Yufeng Gao, Dongyu Li in Spacecraft Maneuver with Performance Guaranteed (2023)

  17. No Access

    Chapter

    Spacecraft Performance Guaranteed Optimal Control with Adaptive Dynamic Programming

    Optimal control is crucial for spacecraft missions, with limited spacecraft fuel or energy storage and few opportunities for refueling after launch. The performance guaranteed control can provide transient or ...

    Yufeng Gao, Dongyu Li in Spacecraft Maneuver with Performance Guaranteed (2023)

  18. No Access

    Chapter

    Performance Guaranteed Non-Zero-Sum Games for Combined Spacecraft

    Regarding the joint control of the sub-spacecraft in the large-scale combined spacecraft to achieve the mission objective of the combined spacecraft maneuver, this chapter proposes the performance guaranteed n...

    Yufeng Gao, Dongyu Li in Spacecraft Maneuver with Performance Guaranteed (2023)

  19. No Access

    Chapter

    Distributed Coordinated Control for Networked Spacecraft with Output Constraints

    This chapter addresses the distributed attitude coordinated tracking problem for multiple constrained spacecraft by state and output feedback. Since only parts of the followers can acquire the states of the dy...

    Yufeng Gao, Dongyu Li in Spacecraft Maneuver with Performance Guaranteed (2023)

  20. No Access

    Chapter

    Formation-Containment Control for Networked Spacecraft with Collision Avoidance

    The distributed formation-containment (DFC) problem under a directed graph is addressed for networked spacecraft systems. First, using a leader-follower framework, the DFC problem is properly defined. For the ...

    Yufeng Gao, Dongyu Li in Spacecraft Maneuver with Performance Guaranteed (2023)

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