Stock Photo - 21 August 2018, Germany, Dresden: Joachim Seifert, Head of Building Energy Technology at the TU Dresden, is working on an air-conditioning room at the Institute of Energy Technology. Researchers at the Technical University of Dresden are working on 5G's data security in a new major project. (to dpa ""Tüfteln für die Energiewende - Dresdner erforschen neue Stromsysteme"" of 26.08.2018) Photo: Sebastian Kahnert/dpa-Zentralbild/dpa. - Dresden/Saxony/Germany

Stock Photo: 21 August 2018, Germany, Dresden: Joachim Seifert, Head of Building Energy Technology at the TU Dresden, is working on an air-conditioning room at the Institute.

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