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I finally enjoy making diagrams thanks to this hand-drawn-style tool

Excalidraw changed that for me. It's a free, browser-based diagramming tool with a hand-drawn, whiteboard-style aesthetic. It ...
Oil

Critical path diagrams optimize FCC start-ups

Practical Enginuity, Mission Viejo, Calif. Critical path diagrams, which have evolved from logic diagrams, can help refiners optimize the timing of FCC start-ups. Those start-ups require that certain ...
EDN

Uninterruptible Power Supply (UPS): Basic Circuit Diagram

The circuit drawn pertains to a regular industrial UPS (Uninterruptible Power Supply), which shows how the batteries take control during an outage in electrical supply or variation beyond the normal ...
Oil

Critical path diagrams optimize FCC start-ups

Critical path diagrams, which have evolved from logic diagrams, can help refiners optimize the timing of FCC start-ups. May 2, 2003 Click on the pdf link below to view entire article. Critical path ...