Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Subdiffusive model of substance releasing from a thick membrane   We study both theoretically and experimentally the process of subdiffusive
substance releasing from a thick membrane. The theoretical model uses the
subdiffusion equation with fractional time derivative and specific boundary
conditions at the membrane surfaces. Using a special \textit{ansatz} we find
analytical formulas describing the time evolution of concentration profiles and
an amount of the substance remains in the membrane. Fitting the theoretical
functions to the experimental results, we estimate the subdiffusion coefficient
of polyethylene glycol 2000 in agarose hydrogel.

24
The categories of this paper are: dg-ga
10
The categories of this paper are: q-bio
6
The categories of this paper are: astro-ph
5
The categories of this paper are: gr-qc
30
The categories of this paper are: q-alg
12
The categories of this paper are: nucl-th
13
The categories of this paper are: quant-ph
14
The categories of this paper are: math-ph
33
The categories of this paper are: plasm-ph
28
The categories of this paper are: alg-geom
23
The categories of this paper are: solv-int
19
The categories of this paper are: eess
35
The categories of this paper are: mtrl-th
27
The categories of this paper are: comp-gas
0
The categories of this paper are: hep-ph
7
The categories of this paper are: hep-th