Measurement and verification of concentration-dependent diffusion coefficient: Ray tracing imagery of diffusion process
Wei Li1, Meng Wei-Dong1, 2, Sun Li-Cun3, Cao Xin-Fei1, Pu Xiao-Yun1, 2, †
       

Typical experimental diffusion images for [(a) and (b)] 0%–60% diffusion group at t = 320 min (a) and 380 min (b), and [(c) and (d)] 40%–10% diffusion group at t = 450 min (c) and 540 min (d).