Instruct: Identify the main and secondary category of Arxiv papers based on the titles
Query: Strain, nano-phase separation, multi-scale structures and function of
  advanced materials
15
The categories of this paper are: nucl-ex
26
The categories of this paper are: bayes-an
35
The categories of this paper are: mtrl-th
20
The categories of this paper are: acc-phys
12
The categories of this paper are: nucl-th
22
The categories of this paper are: chao-dyn
17
The categories of this paper are: q-fin
16
The categories of this paper are: stat
3
The categories of this paper are: physics
9
The categories of this paper are: nlin
6
The categories of this paper are: astro-ph
29
The categories of this paper are: funct-an
2
The categories of this paper are: math
19
The categories of this paper are: eess
21
The categories of this paper are: adap-org
1
The categories of this paper are: cs