A5005169984- Laser-Plasma Interactions and Diagnostics
- Laser-induced spectroscopy and plasma
- Laser-Matter Interactions and Applications
- Geotechnical Engineering and Analysis
- Geotechnical Engineering and Soil Stabilization
- Geotechnical Engineering and Underground Structures
- High-pressure geophysics and materials
- Magnetic and Electromagnetic Effects
- Geotechnical Engineering and Soil Mechanics
- Atomic and Molecular Physics
- Photocathodes and Microchannel Plates
- Biofield Effects and Biophysics
- High-Temperature Coating Behaviors
- Freezing and Crystallization Processes
- High Entropy Alloys Studies
- X-ray Spectroscopy and Fluorescence Analysis
- Radiation Detection and Scintillator Technologies
- Civil and Geotechnical Engineering Research
- Nuclear Physics and Applications
- Advanced X-ray Imaging Techniques
- Soil and Unsaturated Flow
- Particle Detector Development and Performance
- Dam Engineering and Safety
- Ocular and Laser Science Research
- Laser Design and Applications
Guangdong Special Equipment Inspection and Research Institute
2025
China Academy of Engineering Physics
2016-2025
University of South China
2021-2025
Shandong Special Equipment Inspection Institute
2025
South China University of Technology
2025
Xi’an University
2017-2024
Xi'an University of Technology
2016-2024
University of Electronic Science and Technology of China
2007-2024
China University of Geosciences
2024
Southeast University
2024
The properties of water and their changes under the action a magnetic field were gathered by spectrum techniques infrared, Raman, visible, ultraviolet X-ray lights, which may give an insight into molecular atomic structures water. It was found that some changed, lot new strange phenomena discovered after magnetization. Magnetized really has magnetism, been verified peak shift diffraction magnetized + Fe3O4 hybrid relative to pure hybrid, is saturation memory effect. infrared absorptions,...
Metal oxide semiconductor (MOS) hydrogen sensors offer advantages, such as high sensitivity and fast response, but their challenges remain in achieving low-cost fabrication stable operation at room temperature. This study investigates Nb-doped TiO2 (NTO) thin films prepared via a one-step micro-arc oxidation (MAO) with the addition of Nb2O5 nanoparticles into electrolyte for room-temperature sensing. The characterization results revealed that incorporation altered film's morphology phase...
The first experiments on laser-driven cylindrical gold foam hohlraums have been performed at the 100 kJ SG-III laser facility. Measurements of expanding plasma emission show that there is less fill in with a wall density 0.8 g/cm3 than solid hohlraums. radiation temperatures different angles confirm these results. Simulation results lower hohlraums, resulting and higher temperature. Thus, advantages reducing filling improving X-ray transmission, which has potential applications achieving...
To enhance the improvement effect of Enzyme-Induced Carbonate Precipitation (EICP) technology more effectively, an abundant renewable resource—lignin—was introduced as additive during EICP modification process silty clay. The mechanical properties improved soil specimens were analyzed from a macroscopic point view by using unconsolidated undrained (UU) triaxial tests and unconfined compressive strength (UCS) to determine optimal lignin content curing time. micro-mechanism was elucidated...
Abstract Rubber sealing components are essential for maintaining high‐pressure hydrogen systems. Nonetheless, they prone to hydrogen‐induced blister cracks under environments, which exacerbate the deterioration of rubber properties. In this study, a dynamic finite element model nitrile butadiene (NBR) seals with was developed environments. The effects various crack characteristics (size, number, and spacing), service condition parameters (hydrogen pressure precompression rate), kinematic...
The influences of magnetic field on thermodynamic, mechanical and electromagnetic properties water including the specific heat, surface tension force, soaking effect or angle contact, refraction index electric conductivity are studied. From these investigations we know that fields reduce heat water, increase degree hydrophobicity to materials, depress its force refractive relative those pure water. We can predict changes caused by microscopic structures distribution molecules under action a...
Although commonly ignored in conventional design, cost savings could be possible if a proper assessment of the effect matric suction retaining structures with unsaturated backfill were completed. In this study, an analytical method was developed based on limit equilibrium (LE) and assumptions plastic soil mass planar slip surfaces. The proposed can calculate distributions passive earth pressure, thrust, their points application under conditions, which consider apparent cohesion adhesion...
A recently proposed octahedral spherical hohlraum with six laser entrance holes (LEHs) is an attractive concept for upgraded facility aiming at a predictable and reproducible fusion gain simple target design. However, the energies available present, LEH size can be critical issue. Owing to uncertainties in simulation results, should determined on basis of experimental evidence. determination ignition small-scale poses difficulties. In this paper, we propose use prepulse pulse determine...
In inertial confinement approaches to fusion, the asymmetry of target implosion is a major obstacle achieving high gain in laboratory. A recently proposed octahedral spherical hohlraum makes it possible naturally create irradiation without supplementary symmetry control. Before any decision made pursue an ignition-scale laser system based on hohlraum, one needs test concept with existing facilities. Here, we report proof-of-concept experiment for novel geometry cylindrically configured SGIII...
The existing tunnel construction causes stratum deformation, which in turn leads to additional deformation and internal force of the overlying pipeline, thus increasing risk pipeline accidents. Then, how correctly calculate is key safety evaluation. To this end, study firstly used Pasternak foundation beam model simulate interaction soil, divided into void area (i.e., pipeline-soil detachment) coordination always deformed together) between soil. differential equation deflection for were...
Abstract An ultra-low carbon austenitic stainless steel was successfully pressed from one to eight passes by equal channel angular pressing (ECAP) at room temperature. By using X-ray diffraction, optical microscopy and transmission electron microscopy, the microstructural evolution during ECAP investigated reveal formation mechanism of strain-induced nanostructures. The refinement involved shear bands deformation twins, followed fragmentation twin lamellae, as well successive martensite...
As a new type of retaining structure, lattice beams with tie-back anchor cables have been increasingly used in slope reinforcement and achieved improved prevention effects. However, the simplified load distribution method (SLDM) at node, which is theoretical basis internal force analysis for beams, not perfect present. An alternative (NLDM) node based on beam was therefore introduced this paper. Taking into account loads acting other nodes both directions according to static equilibrium...
The first observation of the $K$-shell photoabsorption edge strongly coupled matter with an ion-ion coupling parameter about 65 generated by intense x-ray radiation-driven shocks is reported. soft radiation laser interaction a ``dog bone'' high-$Z$ hohlraum used to ablate two thick CH layers, which cover KCl sample, create symmetrical inward shocks. While impact at central highly compressed obtained density 3--5 times solid and temperature 2--4 eV. spectra chlorine near are measured crystal...
Spaces for backfills are often constrained and narrowed when retaining walls must be built close to existing stable in urban areas or near rock faces mountainous areas. The discrete element method (DEM), using Particle Flow Code ( PFC ‐ 2D ) software, was employed simulate the behavior of cohesionless soil with narrow width behind a rigid wall translation moved away from soils. simulations focused on failure model movement reaches value where active earth pressure occurs, shape sliding...
The first octahedral spherical hohlraum energetics experiment is accomplished at the SGIII laser facility. For time, 32 beams are injected into through six entrance holes. Two techniques used to diagnose radiation field of in order obtain comprehensive experimental data. flux streaming out holes measured by flat-response x-ray detectors (FXRDs) and four M-band detectors, which placed different locations target chamber. temperature derived from FXRD using blackbody assumption. peak inside...
The experimental study on the expanding plasma movement of low-density gold foam (∼1% solid density) irradiated by a high power laser is reported in this paper. Experiments were conducted using SG-III prototype laser. Compared to with 19.3 g/cc density, velocities X-ray emission fronts moving off wall are much smaller for 0.3 density. Theoretical analysis and MULTI 1D simulation results also show less blow-off, that density contour than those gold, agreeing results. These indicate walls have...
The enhancement of laser to x-ray conversion efficiencies using low density gold targets [W. L. Shang, J. M. Yang, and Y. S. Dong, Appl. Phys. Lett. 102, 094105 (2013)] is demonstrated. Laser with 6.3% 12% increases are achieved target densities 1 0.25 g/cm3, when compared that a solid (19.3 g/cm3). Experimental data numerical simulations in good agreement. caused by larger emission zone lengths formed targets, which agreement the simulation results.