Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Grain extraction and microstructural analysis method for two-dimensional
  poly and quasicrystalline solids   While the microscopic structure of defected solid crystalline materials has
significant impact on their physical properties, efficient and accurate
determination of a given polycrystalline microstructure remains a challenge. In
this paper we present a highly generalizable and reliable variational method to
achieve this goal for two-dimensional crystalline and quasicrystalline
materials. The method is benchmarked and optimized successfully using a variety
of large-scale systems of defected solids, including periodic structures and
quasicrystalline symmetries to quantify their microstructural characteristics,
e.g., grain size and lattice misorientation distributions. We find that many
microstructural properties show universal features independent of the
underlying symmetries.

13
The categories of this paper are: quant-ph
30
The categories of this paper are: q-alg
17
The categories of this paper are: q-fin
6
The categories of this paper are: astro-ph
26
The categories of this paper are: bayes-an
33
The categories of this paper are: plasm-ph
7
The categories of this paper are: hep-th
27
The categories of this paper are: comp-gas
25
The categories of this paper are: patt-sol
0
The categories of this paper are: hep-ph
32
The categories of this paper are: atom-ph
12
The categories of this paper are: nucl-th
19
The categories of this paper are: eess
34
The categories of this paper are: chem-ph
11
The categories of this paper are: hep-lat
8
The categories of this paper are: hep-ex