A5007022204- Adaptive Control of Nonlinear Systems
- Advanced Algorithms and Applications
- Fault Detection and Control Systems
- Non-Destructive Testing Techniques
- Target Tracking and Data Fusion in Sensor Networks
- Advanced Control Systems Optimization
- Geophysical Methods and Applications
- Control and Stability of Dynamical Systems
- Underwater Vehicles and Communication Systems
- Advanced Computational Techniques and Applications
- Inertial Sensor and Navigation
- Advanced Technologies in Various Fields
- Aerospace Engineering and Energy Systems
- Remote Sensing and Land Use
- Dynamics and Control of Mechanical Systems
- Technology and Human Factors in Education and Health
- Concrete Corrosion and Durability
- Cancer Cells and Metastasis
- Maritime Navigation and Safety
- Advanced Control Systems Design
- Electromagnetic Simulation and Numerical Methods
- MicroRNA in disease regulation
- Hydraulic and Pneumatic Systems
- Stability and Control of Uncertain Systems
- Cardiovascular Health and Disease Prevention
Wuhan Ship Development & Design Institute
2010-2024
Wuxi Taihu Hospital
2024
Tianjin Research Institute of Electric Science (China)
2023
Huizhou Central People's Hospital
2020
Harbin Engineering University
2011
Cargo transfer vessels (CTVs) are designed to cargo from a floating production storage and offloading (FPSO) unit into conventional tankers. The dynamic positioning system allows the CTV maintain safe position relative FPSO using flexible transmission pipe, tows tanker during operating conditions. operation mode can be considered synchronization tracking control problem. In this paper, strategy is presented based on virtual leader–follower configuration an adaptive backstepping method....
Focusing on dynamic positioning (DP) systems for ships, which are subject to environmental disturbances and actuator constraints, this paper presents a finite-time controller that uses disturbance observer with the aid of backstepping technique. First, estimate time-varying unknown in finite time, two sliding-mode observers constructed. Specifically, an adaptive (ADO) effectively decreases undesired chattering without need prior information disturbances. Then, handle designed control forces...
The traditional magnetic flux leakage (MFL) method with a single excitation source has been widely used in engineering practice but fails long-range (long liftoff distance of the sensor from surface tested object) defect detection, especially when distances increase. Thus, we propose novel electromagnetic testing based on field interaction between primary induction and secondary MFL. principles new are first introduced, is compared common MFL methods; this comparison indicates that...
The aim of the present study was to investigate expression microRNA-222 (miR-222) and aldehyde dehydrogenase 1 (ALDH1) in tissues peripheral blood cervical cancer patients, elucidate their underlying mechanisms action. Tumor tumor-adjacent were obtained from 33 patients these 28 healthy subjects. miR-222 ALDH1 mRNA evaluated by reverse transcription-quantitative polymerase chain reaction (RT-qPCR). To examine levels protein blood, western blotting ELISA used. confirm a direct interaction...
With the gradual deepening of human exploration ocean, more and attention has been paid to intelligence ships. The research on tracking control intelligent ship is most important. In order solve problem target motion in real time, a hierarchical model predictive control(H-MPC) method based combination control(MPC) proposed. simulation results show that under premise external interference, error speed H-MPC are obviously better than those MPC. Thus it can be seen, designed make track very well.
The ongoing development of deep-sea resources has contributed toward the widespread use dynamic positioning (DP) systems that can operate in arbitrary sea areas without limitation operating water depth compared to mooring systems. second-order slowly varying forces be compensated by DP feedback control. Wave filtering techniques are crucial for designing controller, which improve performance and service multiple actuators. objective wave is separate motion induced first-order high-frequency...
A contraction-based backstepping control with disturbance observer is proposed for dynamic positioning ship under environmental disturbances induced by waves, wind and ocean current. high gain built to compensate the disturbances. Contraction theory adopted design controller study convergence of system trajectories respect another. At each step recursive design, subsystem made contracting, its error state global exponential convergent. Using coordinate transformation contraction analysis, it...
Dynamic Positioning System (DPS) can automatically control the position and motion path of a floating vessel subjected to environmental external forces using actuators, which is composed several algorithms, such as controller, filters optimal allocation. The allocation plays an important role for performance DPS. purpose system distribute among thrusters desired generalized computed by controller. output from thruster directions. problem posed constrained quadratic program. This paper...