A5114752498- Geophysical Methods and Applications
- Geophysical and Geoelectrical Methods
- Seismic Waves and Analysis
- Geomechanics and Mining Engineering
- Grouting, Rheology, and Soil Mechanics
- Hydrocarbon exploration and reservoir analysis
- Non-Destructive Testing Techniques
- Civil and Geotechnical Engineering Research
- Earthquake Detection and Analysis
- Geological and Geochemical Analysis
- Seismic Imaging and Inversion Techniques
- Advanced battery technologies research
- Metallurgy and Material Forming
- Thermochemical Biomass Conversion Processes
- earthquake and tectonic studies
- Geotechnical Engineering and Underground Structures
- Structural Engineering and Vibration Analysis
- Geoscience and Mining Technology
- Extraction and Separation Processes
- Rock Mechanics and Modeling
- Electrocatalysts for Energy Conversion
- Seismology and Earthquake Studies
- Fuel Cells and Related Materials
- Geological and Geophysical Studies
- Methane Hydrates and Related Phenomena
Chinese Academy of Sciences
2021-2024
University of Science and Technology of China
1998-2024
Hefei Institutes of Physical Science
2024
Songshan Lake Materials Laboratory
2024
Harbin Institute of Technology
2024
Jilin Engineering Normal University
2024
University of Science and Technology Beijing
2024
South China Normal University
2024
Institute of Computing Technology
2023
University of Chinese Academy of Sciences
2023
Fe/N/C is a promising non-Pt electrocatalyst for the oxygen reduction reaction (ORR), but its catalytic activity considerably inferior to that of Pt in acidic medium, environment polymer electrolyte membrane fuel cells (PEMFCs). An improved catalyst (denoted as Fe/N/C-SCN) derived from Fe(SCN)3, poly-m-phenylenediamine, and carbon black presented. The advantage using Fe(SCN)3 iron source obtained has high level S doping surface area, thus exhibits excellent ORR (23 A g(-1) at 0.80 V) 0.1 M...
Abstract Fe/N/C is a promising non‐Pt electrocatalyst for the oxygen reduction reaction (ORR), but its catalytic activity considerably inferior to that of Pt in acidic medium, environment polymer electrolyte membrane fuel cells (PEMFCs). An improved catalyst (denoted as Fe/N/C‐SCN) derived from Fe(SCN) 3 , poly‐m‐phenylenediamine, and carbon black presented. The advantage using iron source obtained has high level S doping surface area, thus exhibits excellent ORR (23 A g −1 at 0.80 V) 0.1 M...
CB[6] not only forms complexes with SO 4 2− anions to enhance its solubility, but also adsorbs horizontally on the Zn surface form an H 2 O/SO shielding layer and induces epitaxial deposition of 2+ along (002) lattice plane.
Hydrocarbon exploration in the Neoproterozoic extensional basins Yangtze Craton of South China has made prominent progresses past decades. However, spatial distribution source rocks across craton still remains unclear. Here, we use outcrop observations, borehole data, and reflective seismic profiles to investigate prototype, sediment infilling these during periods rock deposition. The basin prototype is categorized based on its tectonic origin structural-sedimentary feature as follows. (1)...
Abstract Water inrush during tunnel excavation severally threatens the mining safety as blind water-bearing structures may develop in front of working face. The transient electromagnetic method (TEM) has been widely applied advanced detection structures. However, metal interference both supports and tools become a bottleneck that reduces forecast accuracy this method. In paper, we analyse effect on TEM data propose novel set an observation correction under based ratio anomalous background...
During tunnel excavation, water hazards in faults, especially steep rich pose a serious threat to safe construction some complex mountains, which leads low economic growth and development these areas. Direct current resistivity method, has high resolution sensitivity the body is widely used predict water-bearing structures front of face. The prediction models are based on isotropic medium, however, bearing fault often anisotropic due rock fracture. model neglecting anisotropy obviously...
Water inrush in tunneling poses serious harm to safe construction, causing economic losses and casualties. The prediction of water hazards before tunnel excavations becomes an urgent task for governments or enterprises ensure security. three-dimensional (3D) direct current (DC) resistivity method is widely used the forward-probing tunnels because its low cost highly sensitive response water-bearing structures. However, different sizes will distort distribution potential field, which causes...
The observation data of seven circumjacent terrestrial resistivity stations before two strong historical earthquakes in China were studied through performing the method normalized monthly variation rate. We analysed relationship between anisotropic variations apparent and corresponding maximum principal stress's direction focal mechanism solution. results may demonstrate that significant occurs nearly perpendicular to azimuth compressive stress, while only small fluctuations recorded...
ABSTRACT The direct current resistivity method has been widely used for the prediction of water‐bearing structures in subway tunnels and mine tunnels. traditional uses point electrode sources to excite electric field; potential electrodes are arranged on back tunnel face measure position anomaly using apparent sounding curve. Due dimension limitations cavity, maximum distance is often restricted. Thus, exploration depth cannot cover target appropriately. Additionally, owing inaccessibility...
Guided ultrasonic wave is a new non-destructive pipe inspection technology for its rapid, long distance inspection. It can be used to inspect urban pipes, example, residential drinking water pipe, natural gas heating sewage pipe. Most pipes are underground and difficult access using other conventional NDT methods. The distance, that is, the traveling range of guided dependent on propagation characteristics waves. In this paper, longitudinal L(0, 2), which was as excited 1), should suppressed...
We have proposed a goal-oriented iteration algorithm with adaptive error estimation for the 3-D modeling of time-domain marine controlled-source electromagnetic (CSEM) method. The is based on finite-element (FETD) formulations, and it updates both time step mesh size in staggered manner. With this scheme, computational well suppressed, efficiency FETD simulation guaranteed by time-stepping within each iteration. verification results an electric dipole radiation model synthetic 1-D CSEM shown...
The objective of this study was to examine the possible formation chlorinated organic compounds during combustion blends refuse derived fuels (RDF) and coal under conditions similar those an atmospheric fluidized bed (AFBC) system. A series experiments were conducted using a TG interfaced FTIR. Additional tube furnace preheated AFBC operating temperatures also conducted. products cryogenically trapped analyzed with GC/MS chlorination phenols condensation reactions chlorophenols investigated...
Based on the observation data of CHAMP satellite from 2006 to 2009, a 2D crustal magnetic anomaly model in China is established study distribution characteristics anomaly. In this paper, derived Legendre polynomial expansion harmonic term N=6−50. The result shows that many elaborate structures reflected map well correspond geologic and its adjacent area. at low height behaves complexly, which mainly caused by disturbance shallow rocks. contrast, field isolines high are relatively sparse only...
The early stage evolution of local atomic structures in a multicomponent metallic glass during its crystallization process has been investigated via molecular dynamics simulation. It is found that the initial thermal stability and earliest clusters show no strong correlation with their short-range orders, this leads to an observation novel symmetry convergence phenomenon, which can be understood as structure manifestation ergodicity. Furthermore, our system we have quantitatively proved...
The effect of slag composition on the cleanliness Al-Ti deoxidized interstitial-free steel produced via basic oxygen furnace (BOF)-ladle (LF)-Ruhrstahl-Heraeus (RH)-continuous casting (CC) process was investigated by systematic samplings and analyses for four heats in a plant China. Oxygen/nitrogen analyzer, automatic scanning electron microscope, field-emission energy spectroscopy analysis were used to analyze variations number, size, type, morphology inclusions molten from RH tundish,...