Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Conserved Dynamics and Interface Roughening in Spontaneous Imbibition :
  A Critical Overview   Imbibition phenomena have been widely used experimentally and theoretically
to study the kinetic roughening of interfaces. We critically discuss the
existing experiments and some associated theoretical approaches on the scaling
properties of the imbibition front, with particular attention to the
conservation law associated to the fluid, to problems arising from the actual
structure of the embedding medium, and to external influences such as
evaporation and gravity. Our main conclusion is that the scaling of moving
interfaces includes many crossover phenomena, with competition between the
average capillary pressure gradient and its fluctuations setting the maximal
lengthscale for roughening. We discuss the physics of both pinned and moving
interfaces and the ability of the existing models to account for their
properties.

22
The categories of this paper are: chao-dyn
13
The categories of this paper are: quant-ph
23
The categories of this paper are: solv-int
1
The categories of this paper are: cs
33
The categories of this paper are: plasm-ph
21
The categories of this paper are: adap-org
17
The categories of this paper are: q-fin
10
The categories of this paper are: q-bio
37
The categories of this paper are: supr-con
18
The categories of this paper are: econ
6
The categories of this paper are: astro-ph
25
The categories of this paper are: patt-sol
30
The categories of this paper are: q-alg
9
The categories of this paper are: nlin
28
The categories of this paper are: alg-geom
19
The categories of this paper are: eess