Junghoon Lee

A Study on Technology Trend Analysis Using Dynamic Topic Model : Focusing on domestic / foreign hydrogen fuel cell technology

2024 · The Journal of Internet Electronic Commerce Resarch

As economic and social policies for carbon neutrality are strengthened around the world, hydrogen energy is in the spotlight as an alternative energy source to overcome the limitations of the fossil fuel system and achieve …

Time-Synchronized Mutual Authentication via Orbital State Functions

2026 · Zenodo (CERN European Organization for Nuclear Research)

Orbital State Function (OSF) based Time-Synchronized Mutual Authentication Protocol We introduce the Orbital State Function (OSF), a continuous-time keyed primitive whose evaluation traces a deterministic orbit on a 3-dimensional sphere as a function of wall-clock …