A5060321857- Rocket and propulsion systems research
- Corrosion Behavior and Inhibition
- Energetic Materials and Combustion
- Rheology and Fluid Dynamics Studies
- High voltage insulation and dielectric phenomena
- melanin and skin pigmentation
- Advanced Database Systems and Queries
- Concrete Corrosion and Durability
- Fire effects on concrete materials
- Neural Networks and Applications
- Color Science and Applications
- Innovative concrete reinforcement materials
- Graphene research and applications
- Asphalt Pavement Performance Evaluation
- Concrete Properties and Behavior
- Infrastructure Maintenance and Monitoring
- Product Development and Customization
- Injection Molding Process and Properties
- Electromagnetic Launch and Propulsion Technology
- Structural Behavior of Reinforced Concrete
- Additive Manufacturing and 3D Printing Technologies
- Polymer Foaming and Composites
- Guidance and Control Systems
- Transport Systems and Technology
- Machine Learning and ELM
Nanjing University of Science and Technology
2012-2023
Shandong Jiaotong University
2020
China Agricultural University
2019
Ningbo Institute of Industrial Technology
2019
Chinese Academy of Sciences
2019
Color is an important appearance attribute of fruits and vegetables during drying processing, as it influences consumer's preference acceptability. Establishing color change kinetics model effective way for better understanding the quality changes optimization process. However, difficult to quickly accurately predict highly nonlinear, complex, dynamic, multivariable. To alleviate this problem, a new based on extreme learning machine integrated Bayesian methods (BELM) has been developed...
We present foundation language models developed to power Apple Intelligence features, including a ~3 billion parameter model designed run efficiently on devices and large server-based for Private Cloud Compute. These are perform wide range of tasks efficiently, accurately, responsibly. This report describes the architecture, data used train model, training process, how optimized inference, evaluation results. highlight our focus Responsible AI principles applied throughout development.
Graphene is extensively considered to be highly promising in the optimizing of anticorrosive properties organic coatings. However, poor hydrophilicity graphene impedes its application waterborne In this work, attapulgite-graphene (ATP-G) nanocomposites were synthesized through a simple method. was well bonded with ATP via hydrogen bond interaction, thus improving compatibility water obviously. Susequently ATP-G incorporated into epoxy coating. It indicated from electrochemical measurement...
Dispersion of graphene nanosheets in a water and polymer matrix has been rarely achieved due to graphene's hydrophobicity, which thus impedes its potential anticorrosive application. In this study, stable aqueous dispersion was obtained by using imidazole-based polymeric ionic liquid (PIL) as the dispersant with ultrasonic vibration. Stacked sheets were exfoliated few layers via cation-π interaction between PIL nanosheets. Electrochemical impedance measurements taken investigate...
According to the requirement of collaborative product development, a networked design and manufacturing system is put forward. A neuter digital assembly model which independent from all kinds commercial CAD software set up. The quick planning sequences automatic search dimension chain can be realized by simulation.
Abstract In order to improve the forming quality of 3D printed gun propellants, rosette-shaped 19-perf double-base propellants with different geometric dimensions (inner diameter and web thickness) were by extrusion printing technology based on conventional propellant formulations. The characterized in terms surface structure, inner thickness dimensional uniformity, density. effects geometrical process parameters (line width flow compensation) studied. results showed that have a good...
The rheological properties of propellant are several key factors in the process design, which affect quality processing that determines weapon's performance. main technological parameters influencing nitroguanidine-based nitroguanidine (NGu) content, solvent ratio and temperature. Rheological test dough was carried out by using capillary rheometer. effects these on shear stress viscosity during were discussed. Power law model, modified Bingham model Cross used to fit data. results show is...
In order to improve the simulation accuracy of single hole nitroguanidine propellant extrusion molding process, influence wall slip on process was studied. The finite element method used simulate forming pore nitroguanidine. power law constitutive equation considering effect constructed calculate factor and non-Newtonian index , coefficient pressure field, velocity field shear in flow channel were analyzed. compared with actual results, error middle aperture is 1.37%, arc thickness 0.96%...
In order to make a precise interpret and research of interior ballistics performance for new-type light caliber cannon, an mathematical physical model was established, on the basis two-phase flow theory description ballistic cycle. MATLAB software used conduct numerical simulation. Conclusion indicates that simulation results manifest favorable consistency with experiment results. Simulation can comprehensively process in guns by pressure distribution, projectile velocity gas temperature...
In order to obtain better quality and mechanical performances, the coating process of super-porous propellants was optimized. The performances were tested, under some conditions with different temperatures, numbers cladding layers, thicknesses layer ratios inner outer through many analytical methods including impact test, interrupted-burning test three-dimensional video observation test. results show that are positively correlated temperature, thickness ratio layer. double-layer also can...
Abstract In order to enhance the corrosion resistance and quality of phosphating film, nano-SiO2 was used in solution.The structure properties film were evaluated by SEM, electrochemistry, cupric sulfate drop test thickness measurement.The results show that increases with increase content. The modified vinyl triethoxy silane possessed good dispersibility solution, solution addition could greatly improve film.
At present, with the rapid development of society, concrete has been widely used in various construction. For example, building construction, bridge construction and so on, almost all can not be separated from concrete. Therefore, use is also profoundly related to quality safety building. In process using concrete, temperature field a great influence on cracks are likely appear due excessive difference between inside outside, which serious impact safety. it particularly important study...
In view of the defects traditional BP algorithm in neural network-based function fitting, such as low accuracy and slow convergence speed, this paper proposes an improved optimized network (igsaa-bp) application UHPC axial tension performance crack width control ability prediction. The high concrete (UHPC) tensile properties fracture prediction is adopted variable method, four kinds different fiber content shaft characteristic parameters for comparison analysis, based on measured curve, puts...