A5101881236- Rock Mechanics and Modeling
- Air Quality and Health Impacts
- Atmospheric chemistry and aerosols
- Geoscience and Mining Technology
- Hydrology and Watershed Management Studies
- Coal Properties and Utilization
- Groundwater and Isotope Geochemistry
- Geomechanics and Mining Engineering
- Karst Systems and Hydrogeology
- Mine drainage and remediation techniques
- Chronic Obstructive Pulmonary Disease (COPD) Research
- Air Quality Monitoring and Forecasting
- Groundwater flow and contamination studies
- Coal and Its By-products
- Geological Modeling and Analysis
- Soil and Unsaturated Flow
- Vehicle emissions and performance
- Climate Change and Health Impacts
- Geothermal Energy Systems and Applications
- Climate change and permafrost
- Thallium and Germanium Studies
- Remote Sensing and Land Use
- Metal Extraction and Bioleaching
- Groundwater and Watershed Analysis
- Water Resources and Management
Taiyuan University of Technology
2016-2025
Ningbo University
2024-2025
Guangdong Provincial Academy of Environmental Science
2011-2024
Shanghai Ocean University
2024
Tsinghua University
2022
China Automotive Technology and Research Center
2022
Chinese Academy of Geological Sciences
2007-2017
Kinokuniya
2017
California Maritime Academy
2017
Lanzhou University
2016
where τ is the peak shear strength of rock joint, σ normal stress, JRC joint roughness coefficient, JCS wall, φb basic friction angle. Over last half century, researchers have kept working on techniques for estimating joints or from this model. So far, value a particular most often estimated by visibly comparing it to ten standard profiles with values ranging 0 20 [2]. This method was also adopted ISRM commission test methods since 1981 [3]. In engineering practice, however, visible...
Excessive exploitation and massive coal mine closures have brought about extensive goafs in Shanxi where 8780 mines been abandoned the last 20 years. Acid drainage (AMD) poses severe environmental impact has become a prominent problem areas, which aggravated shortage of water resources threatened safety local drinking supply. The purpose this review is to protect precious maintain sustainable use downstream. By retrieving analyzing 90 domestic international publications, critical AMD...
Accurate forecasting of annual runoff is necessary for water resources management. However, a series consists complex nonlinear and non-stationary characteristics, which makes difficult. To contribute towards improved prediction accuracy, novel hybrid model based on the empirical mode decomposition (EMD) proposed applied in this paper. Firstly, original decomposed into limited number intrinsic functions (IMFs) one trend term EMD, stationary. Secondly, it will be forecasted by least squares...
Serious particulate matter (PM) pollution problems in many polluted regions of China have been frequently reported recent years. Long-term exposure to ambient PM is significantly associated with adverse health effects. Characterizing the long-term trends and variation a basic requirement for evaluating guiding future policies reduce effects air on health. However, long-term, ground-based measurements are only available at few fixed stations. In this study, an algorithm developed validated...
Core Ideas The SHAW model was used to simulate the freeze–thaw process during periods. It revealed effects of soil texture and groundwater table depth on freezing thawing. frost accumulated negative surface temperature relationship determined. During periods, transformation between phreatic water will change hydrothermal properties affect thawing in shallow areas. purpose this study determine effect four different depths (GTDs) two textures successive periods using Simultaneous Heat Water...
Loess, as one of the main Quaternary deposits, covers approximately 6% land surface Earth. Although loess is loose and fragile, columns are popular they can stand stably for hundreds years, thereby forming a spectacular landform. The formation such special column-shaped soil structures puzzling, underlying fundamentals remain unclear. present study focuses on quantifying examining geometrical shape spatial alignment structural blocks Malan at different locations in Loess Plateau China. under...
Planar anisotropy Nd2Co17 flakes fractured along c crystal plane were fabricated by surfactant-assisted high-energy ball milling technique. The magnetic have a diameter range of 5–20 μm and typical thickness approximately 120 nm. frequency dependence complex permeability epoxy resin composite has been investigated in the 0.1–18 GHz. measurement results show that natural resonance reaches 12.5 GHz while initial survives up to 2.26. superior high properties come from large out-of-plane field...
Abstract Background The association between diurnal temperature range (DTR) and hospitalization for exacerbation of chronic respiratory diseases (CRD) was rarely reported. Objectives To examine the DTR daily hospital admissions CRD find out potential effect modifications on this association. Method Data obstructive pulmonary disease (COPD), asthma bronchiectasis meteorology measures from 2013 through 2017 were obtained 21 cities in South China. After controlling effects mean temperature,...
The serious environmental pollution caused by the spontaneous combustion of coal gangue has become a problem which cannot be ignored in world mining industry. It is urgently necessary to clarify law temperature distribution dumps and grasp its future dynamic evolution combustion. In this study, internal second platform Yinying mine dump was monitored on basis self-developed wireless monitoring system. Its analysed, areas low (<80 °C), medium (80~280 high (>280 °C) were delimited....
The natural clay resources that filled the impermeability requirement in Loess Plateau are scarce. Therefore, it is necessary to modify loess soil meet requirements of landfill barriers. In this study, an experimental study was performed determine effect different application rates (1%, 3%, and 7%) fly ash, nano silica sol, nanoclay amendments on hydraulic conductivity loess. Also, X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), scanning electron microscope (SEM),...
To assess possible effect of air quality improvements, we investigated the temporal change in hospital admissions for acute exacerbations chronic obstructive pulmonary disease (AECOPD) associated with pollutant concentrations. We collected daily concentrations particulate matter (i.e., PM2.5, PM10 and PMcoarse), sulfur dioxide (SO2), nitrogen (NO2), carbon monoxide (CO), ozone (O3), AECOPD 21 cities Guangdong from 2013 to 2017. examined association pollution using two-stage time-series...
The exchange between shallow groundwater and soil water is unusually strong during freeze-thaw periods. purpose of this study to determine the effect four different table depths (GTDs) two textures on moisture migration phreatic evaporation a period using lysimeters. results show that high-moisture zone (HMZ) formed at depth 25–35 cm for sandy loam with content 52%, while no obvious HMZ fine sand when GTD was 0.5 m. When 2.0 m, 50–70 highest 22%, 60–80 10%. cumulative increased by power...