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. 2021 Apr 11;14(8):1912. doi: 10.3390/ma14081912

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© 2021 by the authors.

Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).

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Changes in time during RST mode of the drum brake: (a) velocity $V^{(k)}$ ; (b) specific friction power $q^{(k)}$ , $k = 1, 2, 3, 4$ .