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. 2019 Apr 24;15:41. doi: 10.1186/s13007-019-0424-x

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© The Author(s) 2019

Open AccessThis article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated.

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Fig. 1 — Vent system layout. A HNT heat tent during daytime 1: venture manufacturing 12 V linear actuator used to open top vent. 2: Handle used to manually operate side roll up ventilation. 3: Side rolled up with polypropylene rope securing it against the tent