Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Explicit calculation of nuclear magnetic resonance relaxation rates in
  small pores to elucidate molecular scale fluid dynamics   A model linking the molecular-scale dynamics of fluids confined to nano-pores
to nuclear magnetic resonance (NMR) relaxation rates is proposed. The model is
fit to experimental NMR dispersions for water and oil in an oil shale assuming
that each fluid is characterised by three time constants and L\'{e}vy
statistics. Results yield meaningful and consistent intra-pore dynamical time
constants, insight into diffusion mechanisms and pore morphology. The model is
applicable to a wide range of porous systems and advances NMR dispersion as a
powerful tool for measuring nano-porous fluid properties.

8
The categories of this paper are: hep-ex
23
The categories of this paper are: solv-int
25
The categories of this paper are: patt-sol
21
The categories of this paper are: adap-org
1
The categories of this paper are: cs
15
The categories of this paper are: nucl-ex
32
The categories of this paper are: atom-ph
13
The categories of this paper are: quant-ph
28
The categories of this paper are: alg-geom
6
The categories of this paper are: astro-ph
0
The categories of this paper are: hep-ph
37
The categories of this paper are: supr-con
16
The categories of this paper are: stat
2
The categories of this paper are: math
10
The categories of this paper are: q-bio
5
The categories of this paper are: gr-qc