Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Tunable viscosity modification with diluted particles: When particles
  decrease the viscosity of complex fluids   While spherical particles are the most studied viscosity modifiers, they are
well known only to increase viscosities, in particular at low concentrations.
Extended studies and theories on non-spherical particles find a more
complicated behavior, but still a steady increase. Involving platelets in
combination with complex fluids displays an even more complex scenario that we
analyze experimentally and theoretically as a function of platelet diameter, to
find the underlying concepts. Using a broad toolbox of different techniques we
were able to decrease the viscosity of crude oils although solid particles were
added. This apparent contradiction could lead to a wider range of applications.

21
The categories of this paper are: adap-org
14
The categories of this paper are: math-ph
17
The categories of this paper are: q-fin
5
The categories of this paper are: gr-qc
9
The categories of this paper are: nlin
16
The categories of this paper are: stat
1
The categories of this paper are: cs
0
The categories of this paper are: hep-ph
29
The categories of this paper are: funct-an
32
The categories of this paper are: atom-ph
37
The categories of this paper are: supr-con
26
The categories of this paper are: bayes-an
25
The categories of this paper are: patt-sol
13
The categories of this paper are: quant-ph
36
The categories of this paper are: cmp-lg
6
The categories of this paper are: astro-ph