Results 71 to 80 of about 19,016 (312)

Robust composite neural dynamic surface control for the path following of unmanned marine surface vessels with unknown disturbances

International Journal of Advanced Robotic Systems, 2018
This article presents a robust composite neural-based dynamic surface control design for the path following of unmanned marine surface vessels in the presence of nonlinearly parameterized uncertainties and unknown time-varying disturbances. Compared with
Jiangfeng Zeng, Lei Wan, Yueming Li, Ziyang Zhang, Yufei Xu, Gongrong Li   +5 more
doaj   +1 more source

Underwater Single Image Dehazing Using the Color Space Dimensionality Reduction Prior

IEEE Access, 2020
Underwater images suffer from low visibility and contrast caused by absorption and scattering, which leads to haze and some further limitations. The existing underwater single image dehazing methods cannot achieve a balance between the performance and ...
Yongbin Liu, Shenghui Rong, Xueting Cao, Tengyue Li, Bo He   +4 more
doaj   +1 more source

Optimized Ex Vivo Human Liver Slice Culture Maintains Extended Viability and Function for Hepatotoxicity Testing

Advanced Science, EarlyView.
An optimized ex vivo human liver slice culture system preserves tissue architecture, hepatocyte function, and immune‐stromal complexity for at least five days. By refining slice thickness, oxygenation, air‐liquid interface, and extracellular matrix support, the platform enables human‐relevant hepatotoxicity testing and mechanistic studies, offering a ...
Huiche Feng, Cinzia Esposito, Andrej Benjak, Matthias S. Matter, Miriam Cieri, Camilla De Carlo, Philipp Sedlaczek, Fabian Haak, Mattia Marinucci, Gabriel Fridolin Hess, Otto Kollmar, Mairene Coto‐Llerena, Luca Di Tommaso, Visar Vela, Lukas Bubendorf, Luigi M. Terracciano, Charlotte K. Y. Ng, Salvatore Piscuoglio   +17 more
wiley   +1 more source

Imperfection sensitivity analysis for a composite bowed-out shell under axial compression

Advances in Mechanical Engineering, 2019
In this article, we present a systematic work to investigate the imperfection sensitivity of composite bowed-out shells with different layup patterns under axial compression. Two types of geometric imperfections, including eigenmode-shaped imperfections (
Zhun Li, Guang Pan, Kechun Shen
doaj   +1 more source

Modelling tunnel thrusters for autonomous underwater vehicles [PDF]

, 2008
With 900 Autonomous Underwater Vehicles (AUVs) required over the next decade (Newman et al., 2007) existing survey-style AUVs need improved utilization factors.
Stevenson, P., Hearn, G.E., Alistair Palmer, Peter Stevenson, Grant E. Hearn, Palmer, A.   +5 more
core   +1 more source

Prmt6 Deficiency or Inhibition Restores Microglial Homeostasis and Promotes Scar‐Limited Repair in Adult Spinal Cord Injury

Advanced Science, EarlyView.
After spinal cord injury, adult microglia remain persistently activated with chronic PRMT6 (protein arginine methyltransferase 6) upregulation. Prmt6 deficiency or inhibition reestablishes microglial homeostasis and promotes a scar‐limited repairment, enhancing axonal regrowth.
Weilin Peng, Zhengqiang Wu, Yu Xiong, Zhongya Gao, Yishan Liu, Ziyi Wang, Haibin Wang, Chaofeng Han, Wenxiang Chu, Xuhua Lu   +9 more
wiley   +1 more source

Autonomous Underwater Vehicle Control Coordination Using a Tri-Level Hybrid Software Architecture [PDF]

, 1996
Proceedings of the IEEE Robotics and Automation Conference, Minneapolis, April 1996, pp. 2149 - 2159.The article of record as published may be found at 10.1109/ROBOT.1996.506188Proposes the use of Prolog as a rule-based specification language for ...
Marco, D.B., Healey, A.J., McGhee, R.B.
core  

An Embodied Paper‐Based Microfluidic Al‐Air Battery for Enduring Untethered Insect‐Scale Robots

Advanced Science, EarlyView.
This work presents a centimeter‐scale microfluidic aluminum–air battery (MFAAB) with dual‐surface anode and F−‐mediated byproduct decomposition. The design enables a high capacity of 2697.05 mAh/g Al and delivers tens of milliwatts to power LEDs, motors, and a toy car.
Yun Yang, Tao Jiang, Zhongyue Lu, Dapeng Fan, Zucheng Yi, Zirong Luo   +5 more
wiley   +1 more source

Variable output model-free adaptive heading control method for unmanned surface vehicle

Zhongguo Jianchuan Yanjiu
ObjectiveAiming at the uncertainty of model perturbation and external interference in unmanned surface vehicles (USVs), an improved model-free adaptive control (MFAC) method suitable for the heading control of USVs is proposed.
Yulei LIAO, Congcong CHEN, Tingpeng DU, Bo WANG, Ye LI   +4 more
doaj   +1 more source

Research on Dynamic Simulation of Underwater Vehicle Manipulator Systems

, 2008
Li Q, Zhang Q, Wang X. Research on Dynamic Simulation of Underwater Vehicle Manipulator Systems.
Qifeng Zhang, Zhang, Qifeng, Qiang Li, Li, Qiang ; https://orcid.org/, Wang, Xiaohui, Xiaohui Wang   +5 more
core   +1 more source