- Image Retrieval and Classification Techniques
- Text and Document Classification Technologies
- Polymer Foaming and Composites
- Web Data Mining and Analysis
- Face and Expression Recognition
- Rough Sets and Fuzzy Logic
- Synthesis and properties of polymers
- Organic Light-Emitting Diodes Research
Hunan Normal University
2024-2025
Changsha Normal University
2024
Industrial Technology Research Institute
1996
A closed extrusion process combined with a core-shell separation die design is developed in this study for preparing gradient index (GRIN) polymer fibers quadratic distribution of the refractive index. The material system used investigation methyl methacrylate (MMA, n = 1.49) and benzyl (BzMA, 1.568). differences between center periphery (Δn) prepared increase from 0.0115 to 0.020 when BzMA reactant mixtures increases 17 28%. This finding would suggest that increasing high monomer mixture...