A5022296819- Landslides and related hazards
- Flood Risk Assessment and Management
- Disaster Management and Resilience
- Climate variability and models
- Luminescence Properties of Advanced Materials
- Geology and Paleoclimatology Research
- Oceanographic and Atmospheric Processes
- Dam Engineering and Safety
- Safety and Risk Management
- Evacuation and Crowd Dynamics
- Combustion and flame dynamics
- Arctic and Antarctic ice dynamics
- Glass properties and applications
- China's Ethnic Minorities and Relations
- Solid State Laser Technologies
- Cryospheric studies and observations
- Fire effects on ecosystems
- Infrastructure Resilience and Vulnerability Analysis
- Geotechnical Engineering and Analysis
- Wind and Air Flow Studies
- Tropical and Extratropical Cyclones Research
- Hydrology and Watershed Management Studies
- Outsourcing and Supply Chain Management
- Rock Mechanics and Modeling
- Evaluation Methods in Various Fields
Institute of Mountain Hazards and Environment
2015-2024
Chinese Academy of Sciences
2012-2024
Northeast Agricultural University
2024
Ministry of Agriculture and Rural Affairs
2024
University of Chinese Academy of Sciences
2008-2024
International Center for Chemical and Biological Sciences
2022-2024
Sichuan Normal University
2023
Henan University
2023
GFZ Helmholtz Centre for Geosciences
2023
Shaanxi Normal University
2010-2022
Abstract A miniaturized flume experiment was carried out to measure impact forces of viscous debris flow. The flow depth (7.2–11.2 cm), velocity (2.4–5.2 m/s) and force were recorded during the experiment. process can be divided into three phases by analyzing variation signals regime. are sudden strong head, continuous dynamic pressure body slight static tail. is consistent with change in head has strong–rapid pressure, which shown as a turbulent‐type flow; approximates steady laminar...
Urbanization has been linked to destructive geo-hazards that can cause loss of life, destruction property, and environmental damage. On August 14, 2017, a devastating geo-hazard chain—a debris slide, flow, sediment-laden flood—in Freetown, Sierra Leone resulted in at least 500 deaths over 600 missing persons the hundreds houses. This study uses 10 years high-resolution satellite images conduct remote sensing analysis disaster. Although rainfall was trigger, rapid haphazard urbanization acted...
As a discipline, the science of natural hazards and disaster risk aims to explain spatial-temporal pattern, process mechanism, emergency response mitigation hazards, which requires multidisciplinary interdisciplinary approach. With support Natural Science Finance China (NSFC) Chinese Academy Sciences (CAS), in-depth research systematic analysis on were conducted. In this paper, state art in is summarized from seven aspects: formation process, mechanism dynamic assessment, forecast,...
Observations show that the summer precipitation over East China often goes through decadal variations of opposite sign North and Yangtze River valley (YRV), such as "southern flood northern drought" pattern occurred during late 1970s–1990s. In this study it is shown a modulation Pacific Decadal Oscillation (PDO) on last century partly responsible for characteristic pattern. During positive PDO phases, warm winter sea surface temperatures (SSTs) in eastern subtropical along western coast...
Landslides, one of the most common mountain hazards, can result in enormous casualties and huge economic losses mountainous regions. In order to address landslide hazards effectively, geological society is required not only develop in-depth understanding mechanism but also quantify its associated risk. this article, risk assessment categorised into two types, hard soft assessments, reviewed separately. The approach focuses on mechanics numerical simulations individual landslides, subsequent...
Disaster risk management (DRM) is the application of disaster reduction policies and strategies to reduce existing manage residual risk. However, due dynamic human factors, it challenging depict assess effectiveness DRM measures, their implementation usually lacks a sufficient evidence-based evaluation process. Therefore, this study developed an agent-based model integrate behaviors into measures evaluated in casualty reduction. The was calibrated simulate debris flow event at Longchi town,...
The failure mode and breaching time of a natural dam are affected by many factors. To comprehensively analyse the effects these factors on modes, 159 runs laboratory experiments were performed with 11 channel bed slopes, 4 geometric shapes, 3 construction materials, 8 inflow rates. Through experiments, two types modes identified. results show that for lower permeability coefficients material, overtopping will more likely occur. When coefficient angle between downstream slope horizontal plane...
Optical transitions of Eu(3+)-doped LaOF nanocrystals with tetragonal and rhombohedral structures were studied experimentally using laser spectroscopic method. Fluorescence emissions from 5D1 5D0 Eu3+ in detected by exciting the sample a 532 nm pulsed laser, influence local symmetry on fluorescence emission doped ions was observed. The specific crystalline phase as well investigated both frequency domain time domain. It found that crystal structure present more efficient emission, which...
Konjac glucomannan (KGM) oligosaccharides from KGM is a potentially and valuable prebiotics. A degrading strain was screened identified as Bacillus amyloliquefaciens WX-1. B. WX-1 shown to efficiently depolymerize produce broad range of small molecule oligosaccharides. The processed with 752.9 mg g−1 yields (KGOS) at optimal conditions. KGOS were characterized using TLC, MALDI-TOF-MS NMR spectroscopy. result composition revealed that it contained series degree polymerization 2–14 the...