A5100392311- Distributed Control Multi-Agent Systems
- Neural Networks Stability and Synchronization
- Metal Extraction and Bioleaching
- Minerals Flotation and Separation Techniques
- Extraction and Separation Processes
- Adaptive Control of Nonlinear Systems
- Iterative Learning Control Systems
- Stability and Control of Uncertain Systems
- Adaptive Dynamic Programming Control
- Control Systems and Identification
- Mathematical and Theoretical Epidemiology and Ecology Models
- Advanced Computational Techniques and Applications
- Advanced Control Systems Optimization
- Robotic Path Planning Algorithms
- Neural Networks and Applications
- Mechanical Circulatory Support Devices
- Radiative Heat Transfer Studies
- Recycling and utilization of industrial and municipal waste in materials production
- Nanofluid Flow and Heat Transfer
- Advanced machining processes and optimization
- Rough Sets and Fuzzy Logic
- Fuzzy Logic and Control Systems
- Control Systems in Engineering
- Chaos control and synchronization
- Fluid Dynamics and Turbulent Flows
Northeastern University
2011-2024
China University of Geosciences
2017-2023
Guangzhou College of Commerce
2021
Guangzhou Vocational College of Science and Technology
2021
Nanjing University of Science and Technology
2020
Harbin Engineering University
2020
Zhengzhou University
2017
Shandong Institute of Automation
2017
Wuhan University
2017
Heilongjiang University of Science and Technology
2017
In this article, we pay our attention on exploring observer-based actuator fault and sensor reconstruction associated with fault-tolerant control (FTC) for nonlinear systems, which are approximated by the Takagi–Sugeno (T-S) fuzzy method. By designing a brand-new unknown input observer (UIO), state, sensor, faults can be reconstructed simultaneously, where some constraints imposed such as first derivative of being equal to zero required in previous results not needed work. With support...
In the study, a MIMO model-free-adaptive-iterative-learning-control-based (MFAILC-based) consensus tracking scheme for multiagent systems (MASs) has been proposed. The dynamics of agents are heterogeneous and unknown. And compact form dynamic linearization (CFDL) technique is utilized to describe unknown nonlinear along iteration axis. Then, MFAILC-based algorithm proposed MASs under fixed topology. From proof, we can obtain that error converge zero axis asymptotically. Next, extended...
In this article, the neural network (NN)-based adaptive dynamic programming (ADP) event-triggered control method is presented to obtain near-optimal policy for model-free finite-horizon H∞ optimal tracking problem with constrained input. First, using available input-output data, a data-driven model established by recurrent NN (RNN) reconstruct unknown system. Then, an augmented system mechanism obtained error and command generator. We present novel event-triggering condition without Zeno...
The leaching kinetics of chalcopyrite is sluggish due to the refractory nature and formation passive layers. In this study, effect mechanical activation on behavior mechanism was studied by tests, electrochemical measurements, particle size distribution analysis, scanning electron microscope (SEM), X-ray diffraction (XRD), differential calorimetry-thermogravimetric analysis (DSC-TGA), photoelectron spectroscopy (XPS) microprobe. results show that can greatly promote kinetics, copper...
The use of citrate as an alternative reagent to ammonia in thiosulfate solutions offers environmentally friendly, nontoxic, and cost-effective leaching method for gold extraction from ore/concentrate. In this work, the behavior disc with copper-citrate-thiosulfate has been investigated identify mechanism complex system citrate-thiosulfate. experimental parameters include rotating speed disc, temperature, solution pH, composition lixiviant. addition copper can accelerate dissolution rate by...
In this article, a dynamic event-triggered stochastic adaptive programming (ADP)-based problem is investigated for nonlinear systems with communication network. First, novel condition of obtaining input-to-state stability (SISS) discrete version skillfully established. Then, the control strategy devised, and near-optimal policy designed using an identifier-actor-critic neural networks (NNs) event-sampled state vector. Above all, static event sampling by Lyapunov technique to ensure ultimate...
This article focuses on the event-triggered consensus control (ETCC) issue of time-varying delayed leader-following nonlinear multiagent systems (TVDLFNMASs). In order to minimize influence uncertain factors information transmission and data loss, switching topologies are constructed as generally Markovian jumping forms whose transition rates include completely unknown elements estimate values elements. addition, (ET) strategy is given based threshold parameter ET matrix relieve...
In this article, the time-varying output formation issue of heterogeneous multiagent systems is investigated by event-triggered control scheme. Only outputs all agents, including leader agent and follower are measurable. The contains an unknown input signal to generate flexible reference trajectory. Also, only a subset agents have direct access agent. First, for each follower, leader-state compensator designed estimate state leader. Two kinds dynamic (DET) mechanisms, i.e., node- edge-based...
The leaching behaviors of gold and silver from a complex sulfide concentrate in copper-tartrate-thiosulfate solutions were investigated this paper. Experimental parameters, including temperature, initial pulp pH, concentration copper, tartrate, thiosulfate, systematically studied. system exhibits promising performance dealing with the concentrate. Thiosulfate consumption could be greatly reduced due to in-situ generation thiosulfate derived sulfur or disulfide ions. Increasing temperature...
In this work, a mineralogical study and thermal decomposition analysis of jarosite residue sample from zinc plant were carried out. The showed that the is mainly composed four components, including jarosites, sulfates–hydroxides, sulfides spinel. distribution relevant metallic elements in these components was characterized using sequential extraction process. X-ray diffraction results AFe3(OH)6(SO4)2 ZnFe2O4 are main sample. mechanisms ammoniojarosite sodium studied by TG-DSC...
The dissolution routes of chalcopyrite in acidic sulfate aqueous solution have been discussed by thermodynamic calculation under different species concentrations, such as Cu2+, Fe2+ and H2S. results show that for both oxidative non-oxidative chalcopyrite, the process undergoes several intermediate steps before completely decomposing to elemental sulfur, which bornite covellite are most likely intermediates. secondary intermediates also is final intermediate. Based on these results, some...
Pyrite-rich cyanide tailings (CTs) are industrial hazardous solid wastes arising from the gold mining industry. Every year, hundreds of millions tons produced and discharged to dams. It is great significance dispose harmlessly resourcefully. The feasibility calcination calcium sulphoaluminate (CSA) cement clinker using pyrite-rich as Fe2O3 SO3 sources was investigated for this paper. behavior pyrite during under various conditions properties were examined. results show that it feasible...
Magnetohydrodynamic (MHD, also for magnetohydrodynamics) mixed convection of electrically conducting and radiative participating fluid is studied in a differentially heated vertical annulus. The outer cylinder stationary, the inner rotating at constant angular speed around its axis. temperature difference between two cylindrical walls creates buoyancy force, due to density variation. A axial magnetic field imposed resist motion. nonlinear integro-differential equation, which characterizes...