A5039474427- Advanced Numerical Methods in Computational Mathematics
- HVDC Systems and Fault Protection
- High-Voltage Power Transmission Systems
- Computational Fluid Dynamics and Aerodynamics
- Power Systems Fault Detection
- Numerical methods in engineering
- Microgrid Control and Optimization
- Islanding Detection in Power Systems
- Electromagnetic Simulation and Numerical Methods
- Adaptive Control of Nonlinear Systems
- Power Systems and Renewable Energy
- Advanced Mathematical Modeling in Engineering
- Model Reduction and Neural Networks
- Civil and Geotechnical Engineering Research
- Wind Turbine Control Systems
- Numerical methods for differential equations
- Lattice Boltzmann Simulation Studies
- Differential Equations and Numerical Methods
- Stability and Control of Uncertain Systems
- Probabilistic and Robust Engineering Design
- Power Systems and Technologies
- Gas Dynamics and Kinetic Theory
- Guidance and Control Systems
- Clay minerals and soil interactions
- Smart Grid Security and Resilience
Sanya University
2025
Hainan University
2025
Central South University
2024
NARI Group (China)
2019-2024
Qilu University of Technology
2022-2024
Shandong Academy of Sciences
2022-2023
University of Manchester
2020-2023
University of Science and Technology Beijing
2023
Jiangxi University of Science and Technology
2010-2022
Zhengzhou Railway Vocational & Technical College
2006-2022
Cereal crops are important staple foods, and their defense metabolites hold significant research importance. In this study, we employed LC-MS-based untargeted widely-targeted metabolomics to profile the leaf metabolome of nine cereal species, including rice, wheat, maize, barley, sorghum, common oat, foxtail millet, broomcorn adlay. A total 9869 features were detected, among them, 1131 annotated, encompassing 18 classes such as flavonoids, lipids, alkaloids. Results revealed that 531...
The distributed capacitance of the line becomes larger as scale wind farms, transmission voltage level, and distance increase. Hence, error traditional time-domain protection scheme based on R-L model, which ignores line, unacceptable. Therefore, fault location method especially maximum range, is theoretically analyzed in this paper. On basis, a novel Bergeron models proposed. Then, fast designed. In proposed scheme, fitting calculation used to construct weight matrix, an algorithm for...
A stochastic model updating framework is proposed in this work to address the problem of uncertain calibration. This includes an effective uncertainty quantification metric sub-interval similarity measure discrepancy between predictions and experimental observations. back propagation neural network employed as a surrogate for finite element method models, sparrow search algorithm introduced optimization operator. Two typical numerical examples 3-degree-of-freedom mass-spring system satellite...
Ion-adsorbed rare earth minerals have ions adsorbed on the surfaces of clay such as kaolinite and high contents medium heavy elements. They are important resources supporting development high-tech industries. In this study, CASTEP module in Materials Studio was used to study adsorption ion Y(III) interface (Al-OH)-H2O (Si-O)-H2O with density functional theory. The monitoring calculation chemical bond structure showed that has a O32, O34, water molecules interface. interface, interacts O3,...
Kinetic theory and acoustic measurements have proven that the bulk viscosity associated with expansion or compression effect cannot be ignored in compressible fluids except for monatomic gases. A new theoretical formula coefficient (BVC) $\unicode[STIX]{x1D701}$ is derived by continuum medium methodology, which provides a further understanding of viscosity, i.e. equal to product modulus $K$ relaxation time $\unicode[STIX]{x1D70F}$ ( $\unicode[STIX]{x1D701}=K\unicode[STIX]{x1D70F}$ ). The...
Once an asymmetrical fault occurs on the AC side of receiving-end a high-voltage direct current (HVDC) transmission system, reference will be affected by control regulation DC inverter and commutation voltage asymmetry. In this case, advance firing angle fluctuate periodically, causing security threats to system. If cannot cleared in time, effect may even more serious. However, traditional proportional-integral (PI) controller effectively suppress periodic components input error signal,...
The CO2 injection capacity is a crucial parameter for assessing geological storage. occurrence of scaling phenomenon and CO2–water–rock interaction subsequent to into the reservoir impact porosity permeability reservoir, consequently, reservoir. Existing research has shown limited focus on phenomenon, with significant lack studies investigating mechanism. A comprehensive exploration quantification their effects, alongside interaction, reservoirs, hold importance This paper aims investigate...
Abstract Double shell capsule can provide a potential low-convergence to fusion ignition at relatively low temperature (∼3 keV). One of the main sources degrading double implosion performance is low-mode asymmetries. Recently, experiments on evolution asymmetries introduced by x-ray P2 drive asymmetry during implosions were carried out SG facility, where outer and inner shapes measured through backlit radiography, fuel shape near stagnation was core self-emission imaging. The time-dependent...
The full discrete scheme of expanded mixed finite element approximation is introduced for nonlinear parabolic integro-differential equations modelling non-Fickian flow in porous media. To solve the problem efficiently, a two-grid algorithm considered and analysed. This approach allows us to perform all iterations on coarse grid space just execute linear system fine space. Based RTk space, error estimates convergence results are presented solutions method. Some numerical examples given verify...
Numerical method for a coupled continuum pipe‐flow/Darcy model describing flow in porous media with an embedded conduit pipe is considered. Wilson element on anisotropic mesh used to solve the Darcy equation matrix. The existence and uniqueness of approximation solution are obtained. Optimal error estimates L 2 H 1 norms established independent regularity condition mesh. examples show efficiency presented scheme. With same number nodal points, results using much better than those Q regular...
With the further frequent of human living activities, natural meteorological changes will lead to some harmful substances into atmosphere, concentration is too high harm people's health, air quality forecast can make people timely and effective response bad conditions In this paper, concentrations six common pollutants related are analyzed predicted by combining existing forecasting models known data. The time series model established secondary built on basis original primary forecast, which...
It is one of the main development directions wind power generation in future that farms are connected to grid using VSC-HVDC. VSC-HVDC system can supply passive networks. When farm withdraws from operation due a fault, grid-connected be regarded as network via flexible system. Based on different tasks undertaken by grid-side converter station and farm-side station, this paper analyzes designs control strategies stations both sides. Besides, strategy side improved because oscillation problem...
Montmorillonite is a major mineral present in ion-adsorption rare earth ores, and the microscopic adsorption states of ions on its surface are great significance for efficient exploitation ores. In this article, density functional theory calculations were used to investigate mechanisms bonding characteristics hydrated Pr, Mg NH4 (001) montmorillonite. Pr3+ exhibited directed tendency geometry with Pr(H2O)103+, which was adsorbed onto montmorillonite by hydrogen an energy −1182 kJ/mol, one...