https://jaehyeon.me/categories/stream-processing/Recent content in Stream Processing on Jaehyeon KimHugo -- gohugo.ioenCopyright © 2023-2026 Jaehyeon Kim. All Rights Reserved.Tue, 21 Apr 2026 00:00:00 +0000https://jaehyeon.me/blog/2026-04-21-digital-twin-online-machine-learning/Tue, 21 Apr 2026 00:00:00 +0000https://jaehyeon.me/blog/2026-04-21-digital-twin-online-machine-learning/Overview Imagine using a rolling pin to flatten out a thick piece of dough. A Hot Strip Mill does the exact same thing, but with glowing red-hot steel slabs (often heated over 1000°C) and massive mechanical rollers. The steel is passed through a series of these rollers, crushing it down from a thick block into a long, thin sheet. Calculating the exact Rolling Force required to crush the steel is critical.