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. 2014 Mar 25;9(3):e92108. doi: 10.1371/journal.pone.0092108

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© 2014 Libourel, Burdge

This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are properly credited.

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Bioreactor parameters access is synchronized by providing the bioreactor, time protocol and python protocol VIs with a data value reference (DVR) to the parameters. The DVR is used to access the bioreactor parameters through an in place element structure. The in place element structure performs operations on the bioreactor parameters without creating a copy in memory. This data structure enables the data exchanged with the bioreactor PCU to be shared with the protocol VIs without causing race conditions.