Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Weakly nonlocal irreversible thermodynamics - the Guyer-Krumhansl and
  the Cahn-Hilliard equations   Examples of irreversible thermodynamic theory of nonlocal phenomena are
given, based on generalized entropy current. Thermodynamic currents and forces
are identified to derive the Guyer-Krumhansl and Cahn-Hilliard equations. In
the latter case Gurtin's rate dependent additional term is received through the
thermodynamic approach.

31
The categories of this paper are: ao-sci
17
The categories of this paper are: q-fin
13
The categories of this paper are: quant-ph
25
The categories of this paper are: patt-sol
8
The categories of this paper are: hep-ex
35
The categories of this paper are: mtrl-th
6
The categories of this paper are: astro-ph
16
The categories of this paper are: stat
24
The categories of this paper are: dg-ga
12
The categories of this paper are: nucl-th
14
The categories of this paper are: math-ph
3
The categories of this paper are: physics
18
The categories of this paper are: econ
21
The categories of this paper are: adap-org
20
The categories of this paper are: acc-phys
34
The categories of this paper are: chem-ph