Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Tribochemistry, mechanical alloying, mechanochemistry: what is in a
  name?   Over the decades, the application of mechanical force to influence chemical
reactions has been called by various names: mechanochemistry, tribochemistry,
mechanical alloying, to name but a few. The evolution of these terms has
largely mirrored the understanding of the field. But what is meant by these
terms, why have they evolved, and does it really matter how a process is
called? Which parameters should be defined to describe unambiguously the
experimental conditions such that others can reproduce the results, or to allow
a meaningful comparison between processes explored under different conditions?
Can the information on the process be encoded in a clear, concise, and
self-explanatory way? We address these questions in this Opinion contribution,
which we hop

29
The categories of this paper are: funct-an
33
The categories of this paper are: plasm-ph
23
The categories of this paper are: solv-int
27
The categories of this paper are: comp-gas
1
The categories of this paper are: cs
8
The categories of this paper are: hep-ex
14
The categories of this paper are: math-ph
31
The categories of this paper are: ao-sci
11
The categories of this paper are: hep-lat
20
The categories of this paper are: acc-phys
21
The categories of this paper are: adap-org
2
The categories of this paper are: math
17
The categories of this paper are: q-fin
10
The categories of this paper are: q-bio
15
The categories of this paper are: nucl-ex
6
The categories of this paper are: astro-ph