Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Burst-and-coast swimmers optimize gait by adapting unique intrinsic
  cycle   This paper addresses the physical mechanism of intermittent swimming by
considering the burst-and-coast regime of fish swimming at different speeds.
The burst-and-coast regime consists of a cycle with two successive phases: a
phase of active undulation powered by the fish muscles followed by a passive
gliding phase. Observations of real fish whose swimming gait is forced in a
water flume from low to high speed regimes are performed, using a full
description of the fish kinematics and mechanics. We first show that fish
modulate a unique intrinsic cycle to sustain the demanded speed by modifying
the bursting to coasting ratio while maintaining the duration of the cycle
constant. Secondly, we show using numerical simulations that the chosen
kinematics correspond to optimized gaits over the range of swimming speeds
tested.

37
The categories of this paper are: supr-con
22
The categories of this paper are: chao-dyn
23
The categories of this paper are: solv-int
30
The categories of this paper are: q-alg
13
The categories of this paper are: quant-ph
5
The categories of this paper are: gr-qc
11
The categories of this paper are: hep-lat
19
The categories of this paper are: eess
33
The categories of this paper are: plasm-ph
2
The categories of this paper are: math
0
The categories of this paper are: hep-ph
9
The categories of this paper are: nlin
12
The categories of this paper are: nucl-th
27
The categories of this paper are: comp-gas
31
The categories of this paper are: ao-sci
20
The categories of this paper are: acc-phys