S&M Young Researcher Paper Award 2020
Recipients: Ding Jiao, Zao Ni, Jiachou Wang, and Xinxin Li [Winner's comments]
Paper: High Fill Factor Array of Piezoelectric Micromachined
Ultrasonic Transducers with Large Quality Factor

S&M Young Researcher Paper Award 2021
Award Criteria
Notice of retraction
Vol. 32, No. 8(2), S&M2292

Print: ISSN 0914-4935
Online: ISSN 2435-0869
Sensors and Materials
is an international peer-reviewed open access journal to provide a forum for researchers working in multidisciplinary fields of sensing technology.
Sensors and Materials
is covered by Science Citation Index Expanded (Clarivate Analytics), Scopus (Elsevier), and other databases.

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Liquid Mixing Evaluated Using Entropy in a Lab-on-a-disc Platform

Akinobu Yamaguchi, Atsushi Ishimoto, Shunya Saegusa, Munehisa Sugiyama, Sho Amano, and Yuichi Utsumi

(Received July 26, 2021; Accepted November 24, 2021)

Keywords: lab-on-a-disc, mixing, Euler force, standard deviation, entropy

We present an approach for measuring the mixing degree of two liquids in a microsystem with a mixing mechanism based on the Euler force. By considering Shannon entropy, our proposed method achieves a more reliable evaluation than the conventional technique. The evaluation is performed by analyzing images of the two liquids and calculating the entropy from detected gradation values. We present an accurate analysis of mixing in microfluidics with and without the Euler force. Finally, we confirm that the Shannon entropy used to study the mixing of powders and granules can also be applied to liquid mixing.

Corresponding author: Akinobu Yamaguchi




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