Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: On the Thermodynamics of Granular Media   A thermodynamic formulation for moving granular material is proposed. The
fluctuations due to the constant flux and dissipation of energy are controlled
in a `granular' ensemble by a pressure $\wp$ (`compression') which is conjugate
to a contact volume (`contactopy'). The corresponding response function
(`dissipativity') describes how dissipation increases with $\wp$ and should
serve to identify the fluidization transition and 1/f noise. In the granular
ensemble one can consider the granular medium as a gas of elastically colliding
particles and define a ``granular'' temperature and other standard
thermodynamic quantities. PACS: 05.70, 46.10

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The categories of this paper are: q-fin
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The categories of this paper are: eess
12
The categories of this paper are: nucl-th
8
The categories of this paper are: hep-ex
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The categories of this paper are: econ
21
The categories of this paper are: adap-org
36
The categories of this paper are: cmp-lg
3
The categories of this paper are: physics
1
The categories of this paper are: cs
5
The categories of this paper are: gr-qc
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The categories of this paper are: supr-con
30
The categories of this paper are: q-alg
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The categories of this paper are: nlin
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The categories of this paper are: stat
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The categories of this paper are: solv-int
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The categories of this paper are: mtrl-th