Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Measurement of the Capillary Length for the Dendritic Growth of Ammonium
  Chloride   We report the results of a new method of measuring the capillary length for
the dendritic crystal growth of non-faceted materials. This method uses a
nearly spherical crystal held near unstable equilibrium in an oscillating
temperature field. For the growth of ammonium chloride crystals from aqueous
solution, previous published estimates of the capillary length varied by over a
factor of 20. With this new method, we find the product of the diffusion
constant and capillary length $D d_0$ to be $0.78 \pm 0.07 \,\mathrm{\mu
m^3/s}$, similar to that obtained for ammonium bromide crystals.

30
The categories of this paper are: q-alg
7
The categories of this paper are: hep-th
33
The categories of this paper are: plasm-ph
10
The categories of this paper are: q-bio
18
The categories of this paper are: econ
5
The categories of this paper are: gr-qc
2
The categories of this paper are: math
29
The categories of this paper are: funct-an
16
The categories of this paper are: stat
3
The categories of this paper are: physics
28
The categories of this paper are: alg-geom
32
The categories of this paper are: atom-ph
11
The categories of this paper are: hep-lat
14
The categories of this paper are: math-ph
1
The categories of this paper are: cs
25
The categories of this paper are: patt-sol