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Copyright of Tropical Geography is the property of Tropical Geography Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Chinese Journal of Rehabilitation Medicine is the property of China Association of Rehabilitation Medicine, China-Japan Friendship Hospital and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Chinese Journal of Tissue Engineering Research / Zhongguo Zuzhi Gongcheng Yanjiu is the property of Chinese Journal of Tissue Engineering Research and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Geography & Geographic Information Science is the property of Geography & Geo-Information Science Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

For the safe reentry flight of hypersonic vehicle under faults, considering the existence of various uncertain parameters and torque faults in the control system, we propose the integrated design of the hypersonic vehicle reentry adaptive fault-tolerance guidance and control. First, owing to the design of separate channel integrated guidance and control(SCIGC) cannot coordinate the fault-tolerance of the guidance and control system simultaneously, the coupling relationship between the guidance and the attitude is considered, and an integrated and coupling model of guidance and control is established. Then, for the integrated coupling model, an adaptive fault-tolerance integrated guidance and control (IGC) is designed. An adaptive dual-loop sliding mode fault-tolerance controller is designed, and a Takagi-Sugeno(TS) fuzzy model is used to approach the complex disturbances caused by unknown parameters and additive faults. Finally, the adaptive parameters in the controller are designed based on the Lyapunov stability theorem. At the same time, the projection operator is introduced to ensure the bound of the parameters, and the design parameter adaptation law is used to update the fault-tolerance controller online, so as to complete the design of the integrated program of adaptive fault-tolerance guidance and control. Under the fault conditions, the effectiveness of the adaptive fault-tolerant IGC is verified through the simulation comparison between IGC and SCIGC. [ABSTRACT FROM AUTHOR]

Copyright of China Tropical Medicine is the property of China Tropical Medicine Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Most of the research is based on the two-dimensional model instead of considering the actual situation of orbiting space vehicle. In this paper， the kinetic equations and the sliding mode control are studied to establish the mathematical model of the three-axis liquid-filled spacecraft in the three-dimensional surface and guarantee the attitude stability， which makes the modeling and the attitude control strategy more practical. First of all， the coordinate systems of actual flight environment are established， and the single pendulum model is equivalent to the sloshing of liquid fuel. Using angular momentum theorem， the inertia moment of spacecraft system with respect to the center of mass can be calculated. Based on the theorem and the Lagrange equations， the whole dynamic equations are derived and the model is established. Thereafter， it is concluded that the under-actuated system has unstable zero dynamics. Finally， considering the parameter errors of rotational inertia and the disturbance moment， a sliding mode attitude control method is designed， which can ensure the on-orbit stability of the three-axis liquid-filled spacecraft. [ABSTRACT FROM AUTHOR]

Copyright of Progress in Modern Biomedicine is the property of Publishing House of Progress in Modern Biomedicine and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Progress in Modern Biomedicine is the property of Publishing House of Progress in Modern Biomedicine and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Progress in Modern Biomedicine is the property of Publishing House of Progress in Modern Biomedicine and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)