Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Mathematical modeling of magnetostrictive nanowires for sensor
  application   Magnetostrictive wires of diameter in the nanometer scale have been proposed
for application as acoustic sensors [Downey et al., 2008], [Yang et al., 2006].
The sensing mechanism is expected to operate in the bending regime. In this
work we derive a variational theory for the bending of magnetostrictive
nanowires starting from a full 3-dimensional continuum theory of
magnetostriction. We recover a theory which looks like a typical
Euler-Bernoulli bending model but includes an extra term contributed by the
magnetic part of the energy. The solution of this variational theory for an
important, newly developed magnetostricitve alloy called Galfenol (cf. [Clark
et al., 2000]) is compared with the result of experiments on actual nanowires
(cf. [Downey, 2008]) which shows agreement.

27
The categories of this paper are: comp-gas
12
The categories of this paper are: nucl-th
5
The categories of this paper are: gr-qc
23
The categories of this paper are: solv-int
0
The categories of this paper are: hep-ph
32
The categories of this paper are: atom-ph
17
The categories of this paper are: q-fin
22
The categories of this paper are: chao-dyn
11
The categories of this paper are: hep-lat
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The categories of this paper are: acc-phys
3
The categories of this paper are: physics
8
The categories of this paper are: hep-ex
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The categories of this paper are: eess
18
The categories of this paper are: econ
25
The categories of this paper are: patt-sol
31
The categories of this paper are: ao-sci