A5100660892- Hydraulic Fracturing and Reservoir Analysis
- Land Use and Ecosystem Services
- Hydrocarbon exploration and reservoir analysis
- Rock Mechanics and Modeling
- Drilling and Well Engineering
- Karst Systems and Hydrogeology
- Methane Hydrates and Related Phenomena
- Geological and Geochemical Analysis
- Seismic Imaging and Inversion Techniques
- Structural Load-Bearing Analysis
- Landslides and related hazards
- Urban Green Space and Health
- Remote Sensing in Agriculture
- Geochemistry and Geologic Mapping
- Composite Structure Analysis and Optimization
- High-pressure geophysics and materials
- Autonomous Vehicle Technology and Safety
- Environmental and Agricultural Sciences
- Groundwater and Isotope Geochemistry
- Geotechnical and Geomechanical Engineering
- Urban Heat Island Mitigation
- Hydrology and Drought Analysis
- Topology Optimization in Engineering
- Guidance and Control Systems
- Plant Ecology and Soil Science
China University of Geosciences (Beijing)
2023-2025
Sun Yat-sen University
2019-2024
China University of Petroleum, Beijing
2020-2024
Anhui University of Science and Technology
2023
ZheJiang Institute For Food and Drug Control
2023
Nanjing University of Posts and Telecommunications
2020-2022
Shandong University of Science and Technology
2022
Beijing Academy of Artificial Intelligence
2022
Qinghai University
2022
Beijing University of Technology
2022
Accurate and reliable land cover information is vital for ecosystem management regional sustainable development, especially ecologically vulnerable areas. The South China Karst, one of the largest most concentrated karst distribution areas globally, has been undergoing large-scale afforestation projects to combat accelerating degradation since turn new millennium. Here, we assess five recent widely used global datasets (i.e., CCI-LC, MCD12Q1, GlobeLand30, GlobCover, CGLS-LC) their...
Molybdenite Re–Os and zircon U–Pb isotopic data are first obtained from the stockwork disseminated-style gold-bearing ores fine-grained granite hosting these in Xiawolong gold mine, respectively, which is located within Muping–Rushan metallogenic belt, eastern Jiaodong Peninsula, so as to illustrate genesis of mineralization its implication for exploration. Four molybdenite samples yield a well-defined isochron age 118.4 ± 2.5 Ma (2σ), identical weighted average model 118 1.7 (2σ)....
The conglomerate reservoir is rich in oil and gas reserves; however, the gravel's mechanical properties laws are difficult to gain through laboratory experiments, which furthermore constrain hydraulic fracturing design. To analyse failure law of conglomerate, we simulated uniaxial compression test based on discrete element software PFC2D analysed effect different cementation strength, gravel content geometry rock deformation characteristics. Results show that (i) as strength decreases,...
Spring stream flows of six rivers that flow in the northern Québec Labrador region are modeled a multivariate Gaussian framework and have been analyzed for possible change points their average flows. The formulation takes into account correlations among same region. Significant was detected mean vector, unknown point is estimated by method maximum likelihood estimation. We then establish asymptotic distribution estimate, wherein we show case can be transformed an equivalent univariate...
Yingxiongling shale is characterized by high-frequency cyclic deposition, and the rocks in area are classified into five rock types, which means that this has complex geological features. Different types of have nonhomogeneity unclear stress sensitivity characteristics, important for reservoir stimulation production. In paper, permeability characteristics different evaluated based on elastic parameter results, parameters situ state proposed. The engineering quality combining their...
To improve the power density of large current rectifier, this study designs optimally a star‐connected autotransformer which is used in rectifier. From viewpoint minimising kVA rating phase‐shift transformer and conduction loss rectification devices, it concluded that ideal rectifier combination dual three‐phase half‐wave rectifiers to be transformer. design autotransformer, winding configurations are analysed, corresponding expressions waveforms through windings at different also obtained....
Weather phenomenon recognition plays an important role in the field of meteorology. Nowadays, weather radars and weathers sensor have been widely used for recognition. However, given high cost deploying maintaining devices, it is difficult to apply them intensive Moreover, advanced machine learning models such as Convolutional Neural Networks (CNNs) shown a lot promise meteorology, but these also require computation large memory, which make use reality. In practice, lightweight are often...
Collision accidents have become a crucial and urgent problem. Advanced Driver Assistance Systems (ADAS) can enhance traffic safety improve efficiency. Toward this direction, we propose robust low-cost system based on monovision to estimate the accurate 3D pose information of target vehicles for further behavior prediction. Firstly, combine Haar features with AdaBoost classification vehicle detection, then use Hypothesis Verification remove false detection; Then, keeps tracking locates...
Gravel is one of the main factors affecting mechanical properties conglomerates, which plays a decisive role in crack propagation. In this paper, taking conglomerate Baikouquan Formation Mahu Sag Xinjiang as research object, three-dimensional model constructed by discrete element numerical simulation method, and triaxial compression experiment under different confining pressures simulated. The fracture morphology are analyzed with gravel content variable verified laboratory tests....
Activated sludge was used to treat the wastewater containing spiramycin I. Three new metabolites were isolated and identified, which produced by oxidation of C6-aldehyde, hydrolysis C5-mycaminose-mycarose macrolactone ring-open reaction I in anaerobic digestion. And their antimicrobial activities inactivated. Our results indicated that biodegradation could not induce bacterial resistance environment.
Chemical weathering of rock by river systems is an important process in the global carbon cycle. Sulfuric acid produced from anthropogenic sources Yangtze River basin China has potential to change processes and Monitoring analysis dissolved constituents main channel major tributaries indicate that sulfuric enhanced carbonate rate average 28% reduced CO 2 consumption 12%. Analysis for SO 4 2- indicates 36% can be attributed rainwater, 26% dissolution evaporitic rocks, 38% input coal....