A5101578614- Landslides and related hazards
- Cryospheric studies and observations
- Dam Engineering and Safety
- Flood Risk Assessment and Management
- Climate change and permafrost
- Winter Sports Injuries and Performance
- HVDC Systems and Fault Protection
- Arctic and Antarctic ice dynamics
- High-Voltage Power Transmission Systems
- Railway Systems and Energy Efficiency
- Granular flow and fluidized beds
- Real-time simulation and control systems
- Islanding Detection in Power Systems
- Geotechnical Engineering and Analysis
- Fire effects on ecosystems
- Smart Grid and Power Systems
- Soil Carbon and Nitrogen Dynamics
- Soil erosion and sediment transport
- Wind Turbine Control Systems
- Power Systems and Renewable Energy
- Hydrology and Watershed Management Studies
- Soil and Unsaturated Flow
- Geology and Paleoclimatology Research
- Microgrid Control and Optimization
- Soil and Water Nutrient Dynamics
Chengdu University of Technology
2019-2025
Sichuan University of Science and Engineering
2022-2024
State Key Laboratory of Geohazard Prevention and Geoenvironment Protection
2023
Xinjiang University
2011
Abstract Rock‐ice avalanches occurring in cold high‐mountain regions often cause catastrophic damages due to their extremely high mobility. Rock and ice have different physical properties, such as particle size, density, friction, etc., leading the segregation of rock mixture impacting its However, how affects mobility rock‐ice is still poorly understood. A series numerical experiments were conducted by using discrete element method quantify effect size ratio content on mixtures. Results...
Abstract Rock‐ice avalanches in cold‐high mountainous regions exhibit remarkably high mobility, frequently resulting catastrophic consequences. However, the systematic influence of ice on mobility rock‐ice remains poorly understood. This paper addresses this gap by conducting a comprehensive flume experiment temperature‐controlled room at −10°C, simulating and considering variations particle size ratios contents. Overall segregation patterns are quantified analyzing deposition...
Aiming at the problems of uneven parameter differences and load torque distribution, which cause tracking accuracy synchronization performance multi-motor control system to be reduced, a strategy with sliding mode virtual spindle adjacent cross-coupling is proposed. First, feedback each motor regulated by establishing improve coordination system. Secondly, speed compensator designed couple synchronization. Meanwhile, used for single motor. The robustness are tuned up. simulation experiment...
Abstract The 2008 Wenchuan Earthquake triggered massive landslide erosion, especially in mountainous terrain, which had a great impact on carbon storage of the local terrestrial ecosystem. However, variation flux and restoration ecosystem function after remain open issues. In this study, we evaluated current restored vegetation productive capability coseismic scars through moderate resolution imaging spectroradiometer (MODIS) net primary productivity (NPP) imagery, explored their sensitivity...
Real-time monitoring of power grid operation is essential for the seamless integration wind storage and photovoltaic generation systems. It crucial to accurately extract phase frequency when there a sudden change in voltage. The phase-locked loop (PLL) technology key that can obtain information, including voltage grid. However, traditional PLL based on single synchronous rotating coordinate system cannot phase-frequency information with an unbalanced This article delves into operational...
The current highest glacial lake outburst floods (GLOFs) risk level is centered in the eastern Himalaya. GLOFs represent a serious threat to downstream inhabitants and ecological environment. In context of climate warming on Tibetan Plateau, such will continue or even intensify future. Remote sensing statistical methods are often used diagnose lakes with probability. These efficient large-scale assessment but do not take into consideration complexity specific dynamics triggering factor...
Abstract. Agricultural ecosystems are major sources of greenhouse gas (GHG) emissions, specifically nitrous oxide (N2O) and carbon dioxide (CO2). An important method researching GHG emissions in agricultural is model simulation. Field measurements quantifying N2O CO2 fluxes were taken a summer maize ecosystem Zhangye City, Gansu Province, northwestern China 2010. Observed used for validating flux predictions by DeNitrification-DeComposition (DNDC) model. Then the validated DNDC was...
Grid-connected inverters need to reduce current harmonics as much possible. After introducing the input signal’s fundamental and main harmonic quadrature components, a discrete state model is created, observer design method used propose extraction algorithm called sinewave extractor (QSE). The QSE stable recursive operator with advantages of no phase displacement ability eliminate mutual influence between components. Compared widely proportional multi-resonant controller, can improve system...
Modular multilevel converter (MMC)is a new type of power electronic transformer. This article studies the control and circulating current suppression techniques MMC. In order to improve dynamic response system, An imporved DSOGI-PLL technique is applied A PIR controller used suppress current, which eliminates need for coordinate transformation simplifies structure. Finally, effectiveness algorithm verified under given mutation conditions through Matlab/Simulink simulation.
Abstract. The hydraulic and glaciological conditions that control the timing mode of floods from proglacial-lakes impounded by glacial-ice fronts are not well known. Yet, flooding due to failure such lakes is increasing climate change, posing increased risk people infrastructure downstream. Many occur tunnels developing within ice, allowing water discharge glacier margin rapidly. However, manner in which ice develop through time understood poorly; current understanding being conditioned...