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InfluxDB
Power Real-Time Data Analytics at Scale. Get real-time insights from all types of time series data with InfluxDB. Ingest, query, and analyze billions of data points in real-time with unbounded cardinality.
Not a massive fan of Visio. The lines are never truly perpendicular to one another and most chemical engineering unit operation drawings are chunky. If you have a little time and want to make your PFD super pretty, say for a thesis or an important report, I'd recommend you the LateX package PIDcircuitTikZ.
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