A5011701020- Seismic Imaging and Inversion Techniques
- Power Systems and Technologies
- Advanced Algorithms and Applications
- High-Voltage Power Transmission Systems
- Advanced Sensor and Control Systems
- Smart Grid and Power Systems
- Climate Change and Health Impacts
- Advanced Computational Techniques and Applications
- Adaptive Control of Nonlinear Systems
- Geological Modeling and Analysis
- Simulation and Modeling Applications
- HVDC Systems and Fault Protection
- Air Quality and Health Impacts
- Embedded Systems and FPGA Design
- Control and Dynamics of Mobile Robots
- Distributed Control Multi-Agent Systems
- Evaluation Methods in Various Fields
- Robotic Path Planning Algorithms
- Power Systems Fault Detection
- Transition Metal Oxide Nanomaterials
- Microgrid Control and Optimization
- Safety and Risk Management
- Industrial Automation and Control Systems
- Seismic Waves and Analysis
- Neuroscience and Neural Engineering
Beijing Institute of Technology
2021-2025
Southeast University
2020-2024
Boai Hospital of Zhongshan
2021-2023
Xi'an Jiaotong University
2015-2023
Sichuan University of Science and Engineering
2023
Research Institute of Petroleum Exploration and Development
2017-2022
Ministry of Education of the People's Republic of China
2021-2022
Inner Mongolia Electric Power (China)
2017-2021
China Rehabilitation Research Center
2021
Zhuhai Institute of Advanced Technology
2021
In this article, we studied an optimal formation control problem of general integrator chain multiagent systems with strongly convex local cost functions. The goal is to design appropriate controllers for the agents such that they reach a desired shape and global function minimized. To achieve goal, modular scheme two modules proposed. First, in Module I, signal generator designed, whose outputs asymptotically converge minimizer function. Second, II, by employing into feedback loop as...
The formation control problem for leader–follower wheeled mobile robots (WMRs) is investigated in this article. A strategy proposed based on the embedded technique. Different from conventional design philosophy of designing controller tracking errors directly, decomposes task into two subtasks. One virtual signal generator (i.e., follower) design, and other trajectory design. devised to act as a follower such that it "achieves" desired goal, whose output taken reference follower. To solve...
In this study, inorganic all-solid-state electrochromic devices (ECDs) with the structure of glass/ITO/WO3/Li/Ta2O5/NiO/ITO were prepared, and influence Ta2O5 solid electrolyte thicknesses on electro-optical performance ECDs was systematically studied. For purposes, amorphous films different deposited by reactive pulse DC magnetron sputtering. The optical properties morphology characterized UV-Vis-NIR spectrophotometer, SEM AFM, all have high transparency, uniform flat surface, surface...
Purpose This paper aims to develop a novel model-free controller for uncertain robot manipulators that achieves high-accuracy tracking performance with adaptive feedback gains. Design/methodology/approach study uses sparse online Gaussian processes (SOGP) model unknown dynamics and design the motion controller. SOGP facilitates updates using sensor data stream. The authors integrate into robust sliding mode trajectory gains proportional predicted variance from SOGP, balancing response speed...
Introduction In the modern rubber and plastics industry, temperature control becomes a key factor affecting product quality production efficiency. However, existing system generally has problem of lag high energy consumption. Aiming at poor effect current system, new circulating for plastic industry was proposed in this study. Methods Firstly, fuzzy neural network improved particle swarm optimization algorithm were introduced study, then hybrid combined with mechatronics technology to design...
Objectives Air pollution has been suggested as an important risk factor for chronic obstructive pulmonary disease (COPD); however, evidence of interactive effects on COPD between different factors was sparse, especially young adults. We aimed to assess the combined ambient ozone (O 3 ) and household air in individuals. Methods conducted a population-based study residents aged 15–50 years low-income middle-income regions western China. used multivariable logistic regression models examine...
BackgroundExposure to particulate matter (PM) has been a major public health threat, but the potentially differential effects on asthma of PM remain largely unknown in high altitude settings. We evaluated ambient settings.MethodsThe study recruited representative sample from settings using multistage stratified sampling procedure. Asthma was defined by self-reported history diagnosis physician or wheezing symptoms preceding 12 months. The annual mean PM2.5 and PM10 concentrations were...
This paper presents the mathematical model of membrane current neuron resulting from electromagnetic radiation based on foundation neuronal energy theory; and effect dynamic behaviors single firing activities two neurons coupled with gap connection are investigated. Results show that rate is lowered as intensity increases, finally reaches a stable value. As periodical spiking transformed into bursting firing, which well explained bifurcation theory. It turns out induced by could spread in...
This paper presents a power compensation strategy to suppress the double frequency ripples of Voltage source converter high-voltage direct current (VSC-HVDC) systems under unbalanced grid voltage conditions. The mathematical control equations ripple VSC operating conditions are firstly derived and established, where dynamic behaviors in active reactive regarded as being driven by current-relevant components voltage-relevant components, respectively. Based on equations, VSC-HVDC is proposed...
The construction and operation of the ultrahigh voltage power grid has solved problem optimal allocation energy resources played a key role in promoting social development. However, concerns about its safety have kept growing recent years. In order to analyze reliability AC/DC system combined with quasi-Monte Carlo method PSD-BPA simulation, model various components is established, simulation speed improved accuracy ensured. ensure compatibility efficiency software, we design BPA-Matpower...
Liquid air energy storage (LAES) technology is helpful for large-scale electrical (EES), but faces the challenge of insufficient peak power output. To address this issue, study proposed an efficient and green system integrating LAES, a natural gas plant (NGPP), carbon capture. The research explores whether integration design theoretically feasible future adoption in operating LAES NGPP. effect charging pressure, number expansion stages, electricity prices on overall thermodynamic economic...
In this paper, the trajectory tracking control problem is studied for wheeled mobile robots (WMRs) in cases without and with kinematic disturbances. case disturbances, a controller based on cascaded system theory designed, which guarantees asymptotic WMR to reference trajectory. two kinds of controllers are designed. At first, PID proposed. Secondly, after designing some generalized proportional-integral observers (GPIOs) estimate GPIO-based composite derived by combining disturbance...
Background: Chronic obstructive pulmonary disease (COPD) is a public health challenge globally. The burden of COPD high in never-smokers but little known about its causes. We aimed to find the prevalence and correlates never-smokers, with special focus on solid fuel exposure. Methods: conducted cross-sectional study Western China. was defined by FEV1/FVC < lower limits normal (LLN). Descriptive statistics multivariable logistic regression were used for analyses. Results: Six thousand two...
Driven by the rising awareness of environment protection and energy policies, distributed resource (DER) has become one important technologies for future power system applications. When a large photovoltaic (PV) is integrated into system, problem voltage fluctuation that affects safety stability on operations may be met. It thus necessary to seek useful manners mitigation improvement this problem. In paper, AC microgrid operates in 11.4 kV distribution feeder studied. A coordination control...
In this paper, the attitude tracking control problem is investigated for flexible spacecraft. A novel feedforward-feedback composite scheme proposed based on combination of a generalized proportional integral observer (GPIO) and full-order sliding-mode technique. To estimate lumped disturbances composed appendages’ vibration, external environmental disturbance model uncertainty, firstly constructed. Then, two-layer recursive surface developed, where inner layer designed as linear outer...
Based on the research and development of electrochromism, its commercial applications have been realized in areas building windows, car rear-view mirrors aircraft windows. In this paper, constructions, material category, working principles characteristic requirements electrochromic device were to described details. Preparing methods films technologies for practicality listed. The status commercialization latest also summarized analyzed. Electrochromism has great potential important social...
Switching noise on power grid has been regarded as a serious problem in VLSI circuits. This paper thus focused switching analysis grids. The was modeled linear time invariant distributed RLC network and time-varying current source. Instead of using direct methods to solve the equations, an efficient approach based random walk techniques developed simulate voltage fluctuation caused by simultaneous activities. Two strategies were introduced speed up simulation process well. experimental...
The rapid development of new energy brings great challenges to the frequency control power grid, and early adjustment grid mainly depends on PFC(primary control) function thermal units. In view limitations traditional PFC performance evaluation, combined with grid's technology standards, through history unit operation data, by selecting appropriate data section, mathematical model based rotational speed, main steam pressure actual was established. index can be calculated from step response....