Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Nanoparticles modulate contact angle hysteresis in electrowetting   The pinning of the contact line adversely influences the electrowetting
performance of sessile liquid droplets. In this paper, we report the
electrowetting hysteresis characteristics of 100 mM aq. KCl sessile liquid
droplet placed on a hydrophobic PDMS surface. The effect of nanoparticles on
the contact angle hysteresis under the imposed electric potential is further
investigated. This study reveals that the contact angle hysteresis decreases
beyond a certain threshold value of nanoparticles concentration. Therefore,
nanoparticle suspension in the liquid droplet can be used to enhance or
suppress the electrowetting hysteresis and consequentially rate of heat
transfer during hot spot cooling.

1
The categories of this paper are: cs
9
The categories of this paper are: nlin
30
The categories of this paper are: q-alg
25
The categories of this paper are: patt-sol
5
The categories of this paper are: gr-qc
21
The categories of this paper are: adap-org
28
The categories of this paper are: alg-geom
31
The categories of this paper are: ao-sci
26
The categories of this paper are: bayes-an
33
The categories of this paper are: plasm-ph
18
The categories of this paper are: econ
15
The categories of this paper are: nucl-ex
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The categories of this paper are: q-fin
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The categories of this paper are: math-ph
22
The categories of this paper are: chao-dyn
32
The categories of this paper are: atom-ph