Results 41 to 50 of about 28,435 (103)

Precise path following of underactuated ship based on neurodynamic optimization and model predictive control

Zhongguo Jianchuan Yanjiu
ObjectiveThe traditional model predictive control method employs a repeated online optimization approach, resulting in a high computational burden for underactuated ship path-following predictive controller.
Junqiao SHI, Cheng LIU, Weili GUO, Ting SUN, Xuegang WANG, Feng XU   +5 more
doaj   +1 more source

Taxonomic and functional analyses of intact microbial communities thriving in extreme, astrobiology-relevant, anoxic sites. [PDF]

Microbiome, 2021
Bashir AK, Wink L, Duller S, Schwendner P, Cockell C, Rettberg P, Mahnert A, Beblo-Vranesevic K, Bohmeier M, Rabbow E, Gaboyer F, Westall F, Walter N, Cabezas P, Garcia-Descalzo L, Gomez F, Malki M, Amils R, Ehrenfreund P, Monaghan E, Vannier P, Marteinsson V, Erlacher A, Tanski G, Strauss J, Bashir M, Riedo A, Moissl-Eichinger C.   +27 more
europepmc   +1 more source

Data-driven ship trajectory tracking control method

Zhongguo Jianchuan Yanjiu
ObjectiveAiming at the problems of unknown ship model parameters and external disturbance and servo constraints, this paper proposes a method for the data-driven online identification of ship parameters and iterative analytical calculation of the optimal
Yong XIONG, Siwen ZHOU, XianFei WANG, Zhiyuan LYU   +3 more
doaj   +1 more source

Adaptive surge control of variable-mass unmanned surface vehicle based on super-twisting sliding mode observation

Zhongguo Jianchuan Yanjiu
ObjectiveThis paper presents a novel approach to the precise control of variable mass unmanned surface vehicles (USVs) during payload deployment tasks, addressing the control challenges caused by unpredictable variations in both mass and draught.
Zhaokun YAN, Guanyu YANG, Hongdong WANG
doaj   +1 more source

Fishing vessel track-keeping control based on closed-loop gain shaping algorithm under rough sea conditions

Zhongguo Jianchuan Yanjiu
ObjectiveIn order to solve the track-keeping problem of a fishing vessel under rough sea conditions, a separated track-keeping controller is proposed.MethodsThe nonlinear feedback method is used to improve the closed-loop gain shaping algorithm, and an ...
Jianghua SUI, Teer GUO, Chunyu SONG
doaj   +1 more source

A lipase-independent pathway of lipid release and immune modulation by adipocytes

Science, 2019
Exosomes that fatten immune cells Adipose tissue in mammals contains not only adipocytes (fat cells) but also a variety of immune cells—most notably, macrophages.
Stephen E. Flaherty, Ambar Grijalva, Xiaoyuan Xu, E. Ables, Alireza Nomani, A. Ferrante   +5 more
semanticscholar   +1 more source

Adaptive neural control for marine autonomous surface ships in cross-water scenarios

Zhongguo Jianchuan Yanjiu
ObjectiveAn adaptive neural control (ANC) scheme with specified performance is proposed for the tracking control of marine autonomous surface ships (MASS) subject to uncertain model parameters and unknown external environmental disturbances in cross ...
Xiang YE, Chao CHEN, Jian Xiong JIA, Hang CHEN   +3 more
doaj   +1 more source

Parameter identification of unmanned surface vehicle MMG model based on an improved extended Kalman filter

Zhongguo Jianchuan Yanjiu
ObjectivesTo construct an accurate MMG （mathematical model group） model for a water-jet propulsion unmanned surface vehicle, the traditional extended Kalman filter algorithm and improved extended Kalman filter algorithm are combined with the real-world ...
Pengbo SUN, Zaopeng DONG, Wei LIU, Jinliang SHENG, Zhihao LI   +4 more
doaj   +1 more source

Prediction of ship maneuvering motion in regular wave with gray-box modelling

Zhongguo Jianchuan Yanjiu
ObjectivesAiming at the requirements of the real-time and accurate prediction of ship maneuvering motion, this paper investigates the prediction of ship maneuvering motion in regular waves using gray-box modelling to improve the accuracy.
Yang HAN, Lizhu HAO, Chao SHI, Ziying PAN, Jiang LU, Min GU   +5 more
doaj   +1 more source

Adaptive online modeling of ship maneuvering motion based on error monitoring

Zhongguo Jianchuan Yanjiu
ObjectiveAiming to address the problem of model inaccuracy caused by ship dynamic changes during actual navigation, this study proposes an adaptive online modeling method for ship maneuvering motion based on an error monitoring mechanism.
Yaohui YU, Suyang LIU, Zihao WANG, Wenbo XIE, Yan PENG   +4 more
doaj   +1 more source