A5100333258- Energetic Materials and Combustion
- Metal and Thin Film Mechanics
- Laser-Matter Interactions and Applications
- Laser-Plasma Interactions and Diagnostics
- Laser-induced spectroscopy and plasma
- Diamond and Carbon-based Materials Research
- Particle physics theoretical and experimental studies
- High-Velocity Impact and Material Behavior
- High-Energy Particle Collisions Research
- Quantum Chromodynamics and Particle Interactions
- Laser Material Processing Techniques
- Thermal and Kinetic Analysis
- Ocular and Laser Science Research
- Ion-surface interactions and analysis
- High-pressure geophysics and materials
- Nuclear physics research studies
- Boron and Carbon Nanomaterials Research
- Crystallography and molecular interactions
- Rocket and propulsion systems research
- Advanced Surface Polishing Techniques
- Metallurgy and Material Forming
- Nonlinear Optical Materials Research
- Metal Forming Simulation Techniques
- Lightning and Electromagnetic Phenomena
- Semiconductor materials and devices
Yunnan Population and Family Planning Research Institute
2025
Chinese Academy of Sciences
2005-2024
Yantai Institute of Coastal Zone Research
2024
Henan Provincial Institute of Communications Planning Survey & Design (China)
2022
Harbin Institute of Technology
2004-2021
Qufu Normal University
2019-2021
Dalian University of Technology
2021
Microbiology Institute of Shaanxi
2019-2020
Shanghai Institute of Optics and Fine Mechanics
2006-2020
China XD Group (China)
2020
Size effect in concrete under tension is studied by Monte Carlo simulations of mesoscale finite element models containing random inclusions (aggregates and pores) with prescribed volume fractions, shapes size distributions (called meso-structure controls). For a given set controls, number realisations different spatial distribution are simulated to produce statistical data for macroscopic load/stress–strain curves. The complex meso-crack initiation propagation captured pre-inserted cohesive...
This Letter presents for the first time a scheme to generate intense high-order optical vortices that carry orbital angular momentum in extreme ultraviolet region based on relativistic harmonics from surface of solid target. In three-dimensional particle-in-cell simulation, vortex mode is generated both reflected and transmitted light beams when linearly polarized Laguerre-Gaussian laser pulse impinges foil. The azimuthal scales with its order. intensity close region, duration down...
Three-dimensional particle-in-cell simulation is used to investigate the witness proton acceleration in underdense plasma with a short intense Laguerre-Gaussian (LG) laser pulse. Driven by LG10 pulse, special bubble an electron pillar on axis formed, which protons can be well-confined generated transversal focusing field and accelerated longitudinal wakefield. The risk of scattering prior Gaussian pulse avoided, are stably much higher energy. In simulation, beam has been 7 GeV from 1 tritium...
The Qushi rhyolites, situated in the eastern sector of Tengchong terrane, are critical to understanding Early Cretaceous tectono-magmatic evolution Eastern Tethyan Tectonic Domain. Zircon LA-ICP-MS U-Pb geochronology indicates crystallization ages 118.3–120.5 Ma, with Ti-in-zircon temperatures 641–816 °C (mean = 716 °C), representing magmatic activity terrane. Inherited zircons within rhyolites yield a zircon age ca. 198.5 corresponding 615–699 657 implying potential presence an Jurassic...
A laser wakefield driven by an asymmetric pulse with/without chirp is investigated analytically and through two-dimensional particle-in-cell simulations. For a with appropriate length compared the plasma wavelength, amplitude can be enhanced using un-chirped fast rise time; however, growth small. On other hand, greatly for both positively chirped having time negatively slow time. Simulations show that at early laser-plasma interaction stage, due to influence of more intense than pulse, which...
The fourth-generation plasma immersion ion implantation and deposition (PIIID) facility for hybrid batch treatment was built in our laboratory recently. Comparing with previous PIIID facilities, several novel designs are utilized. Two multicathode pulsed cathodic arc sources fixed on the chamber wall symmetrically, which can increase steady working time from 6 h (the single cathode source facilities) to about 18 h. Meanwhile, inner diameter of is increased 80 209 mm, thus, large area metal...
Reflective cracking is one of the major forms deterioration in semi-rigid base asphalt pavements. It is, therefore, very important to have a correct understanding internal crack propagation mechanism pavement propose most effective remedial solution(s), which corresponds that mode failure. In this study, two-dimensional layered models are first established by modifying peridynamics theory. Then, influence overlay thickness and load form on reflective explored. On basis, friction between tire...
Plasma immersion ion implantation is a burgeoning surface modification technique and not limited by the line-of-sight restriction plaguing conventional beam-line implantation. It therefore an excellent to treat interior surfaces as well components of complex shape. To enhance implant uniformity increase thickness modified layer, we are using high frequency, low-voltage process achieve temperature dose rate layer. The low voltage conditions also lead thinner sheath more favorable conformal In...
A new scheme for accelerating positively charged particles in a plasma-wakefield accelerator is proposed. If the proton drive beam propagates hollow plasma channel, and radius of order channel width, space charge force driver causes separation at wall, which helps to focus witness bunch propagating along axis. In acceleration buckets are much larger than blowout regime uniform plasma, stable over long distances possible. addition, phasing with respect wave can be tuned by changing ensure...
Herein, in order to design the formulation of fluoropolymer bonded explosives, common fluoropolymers were selected and added high energy density compound hexanitrohexaazaisowurtzitane (ε-CL-20). Molecular dynamics simulations carried out on (F2603, F2311, F2314, F2426, PTFE) ε-CL-20. Glass transition temperature (Tg) calculated. Besides, mechanical properties physical compatibilities ε-CL-20 based polymer explosives predicted. The calculated results show that Tg is: PTFE > F2314 F2311 F2462...
Instabilities in the interaction of a normal intensity circularly polarized pulse and an overdense foil are investigated with two three dimensional particle-in-cell simulations. Two typical instabilities were shown during interaction. One is Weibel-like instability induced by current far above Alfven limit, other boundary ring structures spreading to center from which transverse boundaries target or laser pulse. These important proton acceleration using moderate pulses at intensities...
The external electric field (E-field), which is an important stimulus, can change the decomposition mechanism and sensitivity of energetic materials. As a result, understanding response materials to E-fields critical for their safe use. Motivated by recent experiments theories, two-dimensional infrared (2D IR) spectra 3,4-bis (3-nitrofurazan-4-yl) furoxan (DNTF), has high energy, low melting point, comprehensive properties, were theoretically investigated. Cross-peaks observed in 2D IR under...
Inspired by the recent cocrystallization and theory of energetic materials, we theoretically investigated intermolecular vibrational energy transfer process non-covalent interactions between explosive compounds. The 2,4,6-trinitrotoluene (TNT) 2,4,6,8,10,12-hexanitro-2,4,6,8,10,12-hexaazaisowurtzitane (CL-20) 1,3,5,7-tetranitro-1,3,5,7-tetrazocane (HMX) CL-20 were studied using calculated two-dimensional infrared (2D IR) spectra independent gradient model based on Hirshfeld partition (IGMH)...
Polysulfonamide polymers are defined by their heat-resistant ability subjected to a high temperature. The thermal behaviour of polysulfonamide can be tailored using the polymer as matrix multiphase composites. Multi-wall carbon nanotubes were blended with and corresponding fibers prepared wet spinning. In present paper, we have presented functionalized multi-wall nanotube-reinforced gravimetric analysis heat conducting model explain its conductive behaviour. experimental results showed that...
It is important to understand the characteristics of explosive sympathetic detonation for safety. Sympathetic reaction test GHL (RDX/Al/Binder) charges with shell are conducted. A model established. The elements-apart method and nodes random-failure used in describe expansion progress expanding randomly forming process fragments. Random phenomena acceptor charge simulated.