Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Effects of spatial structure and diffusion on the performances of the
  chemostat   Given hydric capacity and nutrient flow of a chemostat-like system, we
analyse the influence of a spatial structure on the output concentrations at
steady-state. Three configurations are compared: perfectly-mixed, serial and
parallel with diffusion rate. We show the existence of a threshold on the input
concentration of nutrient for which the benefits of the serial and parallel
configurations over the perfectly-mixed one are reversed. In addition, we show
that the dependency of the output concentrations on the diffusion rate can be
non-monotonic, and give precise conditions for the diffusion effect to be
advantageous. The study encompasses dead-zone models

6
The categories of this paper are: astro-ph
4
The categories of this paper are: cond-mat
17
The categories of this paper are: q-fin
3
The categories of this paper are: physics
29
The categories of this paper are: funct-an
20
The categories of this paper are: acc-phys
25
The categories of this paper are: patt-sol
11
The categories of this paper are: hep-lat
16
The categories of this paper are: stat
33
The categories of this paper are: plasm-ph
31
The categories of this paper are: ao-sci
18
The categories of this paper are: econ
7
The categories of this paper are: hep-th
12
The categories of this paper are: nucl-th
0
The categories of this paper are: hep-ph
36
The categories of this paper are: cmp-lg