A5059576011- Hydrology and Sediment Transport Processes
- Soil erosion and sediment transport
- Hydraulic flow and structures
- Landslides and related hazards
- Flood Risk Assessment and Management
- Hydrology and Watershed Management Studies
- Land Use and Ecosystem Services
- Fire effects on ecosystems
- Aeolian processes and effects
- Disaster Management and Resilience
- Water Quality Monitoring Technologies
- Geological formations and processes
- Environmental Changes in China
- Particle Dynamics in Fluid Flows
- Coastal and Marine Dynamics
- Geological Modeling and Analysis
- Geoscience and Mining Technology
- Engineering Diagnostics and Reliability
- Yersinia bacterium, plague, ectoparasites research
- Machine Fault Diagnosis Techniques
- Chromatography in Natural Products
- Digital Rights Management and Security
- Underwater Vehicles and Communication Systems
- Natural product bioactivities and synthesis
- Phytochemical Studies and Bioactivities
Sichuan University
2012-2025
Jiangxi University of Traditional Chinese Medicine
2024
State Key Laboratory of Hydraulics and Mountain River Engineering
2012-2024
Changchun University of Technology
2023
Health and Family Planning Commission of Sichuan Province
2004
After the “5·12” Wenchuan earthquake in 2008, collapses and landslides have occurred continuously, resulting accumulation of a large quantity loose sediment on slopes or gullies, providing rich material source reserves for occurrence debris flow flash flood disasters. Therefore, it is great significance to build collapse landslide susceptibility evaluation model County local disaster prevention mitigation. Taking as research object according data 1081 historical points, well natural...
The depth-averaged equation of flow in a rectangular compound channel with secondary flows is established by analyzing the forces acting on elemental water body and using Newton's second law. analytical solution to transverse variation velocity presented that includes effects lateral momentum transfer addition bed friction. Different forms boundary conditions at internal wall between main adjoining floodplain are presented. A comparison published experimental data demonstrates present model...
Abstract Cofferdam is widely employed in the construction of underwater bridge foundations. Its crucial attribute lies providing a dedicated platform for activities and enhancing water resistance dimensions structural design, consequently amplifying local scour. However, previous research on scour has seldom investigated effect facilities life cycle development This gap led to misunderstanding protective strategies against throughout period. In this paper, experiment was implemented with...
Landslide prediction is one of the complicated topics recognized by global scientific community. The research on landslide susceptibility vitally important to mitigate and prevent disasters. instability complexity system can cause uncertainty in process results. Although there are many types models for prediction, they still do not have a unified theoretical basis or accuracy test standard. In past, were mainly subjectively selected determined researchers, but selection based subjective...
In recent years, RS and GIS technologies have played an increasingly important role in various aspects of rainfall induced landslide research. order to systematically understand their application situation, this paper extensively used visualization analysis for in-depth 1,161 documents collected by the WOS data platform past 27 years combining quantitative qualitative methods. Then, article focuses on sub domain from four aspects: detection monitoring, prediction models, sensitivity mapping,...
Abstract River training structures are conventionally used to improve river stability and ecological conditions protect the upstream instream infrastructures from scour erosion. A submerged weir is a typical structure usually built downstream of bridges for grade control. Flow over can cause local scour, destabilizing both trained reach. It therefore important safe design estimate accurately understand effects an bridge pier on at weirs. This study describes experiments process with pier,...
Abstract Changes in river channel erosion or deposition affect the geomorphic evolution, aquatic ecosystems, and regulation strategies. Fluvial processes are determined by flow, sediment boundary conditions, it has long been expected that increasing supply will induce aggradation. Here, based on thorough field surveys, we show unexpected undercutting of piedmont rivers influenced 2008 Wenchuan (Ms 8.0) Earthquake. The flow from Longmen Mountain with significant topographic relief to flat...
The bed degradation of a compound channel induced by base level fall can significantly impact the flood conveyance capability and stability riverine structures. This study found that severe is due to coupled effects discharge fall. Laboratory experiments examined on grain size distribution at surface, flow in main floodplains, longitudinal profile elevation. Two riverbed patterns after were clarified. Relative original slope, pattern (I) had higher but (II) lower one. A calculation method...
Flash flood is one of the extremely destructive natural disasters in world. In recent years, extreme rainfall events caused by global climate change have increased, and flash are becoming main types Due to characteristics strong suddenness, complex disaster-causing factors, great difficulty prediction forecast, lack historical data, it difficult effectively prevent control disaster. The early identification technology floods not only basis disaster warning, but also an effective means...
Abstract Since the 2008 Wenchuan (Ms. 8.0) Earthquake, foreland rivers of Longmen Mountains have suffered from significant bed degradation, among which Shi‐ting River has experienced largest local degradation more than 20 m in 7 years. Potential reasons dramatic include: (a) sediment disconnectivity due to in‐channel weirs; (b) mobilization effect on gravel an increased sand supply as a result earthquake‐induced landslides; and (c) extraction intensive mining. In this paper, we study complex...
In this paper, a dynamic preventive maintenance strategy is proposed for the problem of high cost rate due to excessive caused by unreasonable threshold setting when complex electromechanical equipment formulated. Increasing failure factor and decreasing service age are introduced describe evolution rules during coating machine, BP-LSTM (BP-Long Short Term Memory Network, BP-LSTM) model combined predict machine. A Dynamic Model (DM) that relies on thresholds classify three modes minor,...
The rhizome of Polygonatum cyrtonema Hua has been used as a traditional Chinese medicine for over 2000 years. fresh herb possesses micro toxicity and is thus traditionally alternately steamed basked nine times to alleviate the enhance pharmaceutical efficacy. Different processing cycles usually result in variable therapeutic effects processed (P-PCH). However, it can be hard tell these various P-PCHs apart at present. To identify that had undergone repeated steaming one times, chemical...
This paper conducted an undistorted scaled model test (geometric scale λL = 1:80; the others are derived scales based on Froude similitude) of a 1.3 km-long river reach in Shiting River, China, investigating impacts grade control datum (GCD, defined as crest elevation structure) drop upstream bed morphology. Three GCDs and six flood events (occurrence probability 1–50%, discharge 600–4039 m3/s) were tested model. Experimental results indicate that, for constant GCD, increase deepens widens...
Sediment transport is essential to the source-sink systems; however, interaction between two complex multiscale nonlinear systems, turbulence of river flow and wide size sediment, has heretofore restricted our understanding sediment motion. We have conducted flume experiments deploying a video-based technique that records rate each particle at 1 s resolution. The observations reveal detailed interactions particles sizes ranging from 0.5 32 mm, such small suspended (< ~ 5 mm) keep swirling in...
The Yellow River Basin in China has the world's most serious soil erosion problem. Sichuan Province (YRS), as upper reaches of River, and its water conservation (WC) capacity greatly affects ecological environment downstream basin. In recent years, YRS received more attention, numerous policies have been developed to improve local WC. However, there is a vacancy long-term research WC due lack in-situ data. This study quantitatively evaluated from 2001 2020 through Google Earth Engine (GEE)...
Channel degradation can expose river-crossing cylindrical structures (e.g., pipelines, canals, and tunnels) that are completely buried in the riverbed, altering their surrounding flow patterns to cause scour threatens structural safety. This paper reports a case study of at canal degrading river. Based on historical topography hydrological data, cause, development process, performance countermeasures for were analyzed, recommendations protection proposed. The findings from 53 experiments...