Dr. Jae Hyun Kim is a mechanical engineer in the Heat Transfer and Alternative Energy Systems (HTAES) Group of the Engineering Laboratory (EL) at the National Institute of Standards and Technology (NIST). Dr. Kim’s current research interests include the measurement science for thermal conductivities of insulation materials using Guarded-Hot-Plate apparatus, and characterizations for thermal and physical properties of organic, inorganic, and composite insulation materials at multi scales. The ultimate objective of this research is to fundamentally understand thermal performances of insulation materials in energy efficient buildings by accurately determining the thermal properties of insulation materials. From 2013 to 2019, he was in the NIST Materials and Structural Systems Division, and Materials Science and Engineering Division where he investigated mechanical properties of polymeric component materials in photovoltaic modules, and measured dynamic stress responses of high strength polymer fibers used in soft body armors. From 2002 to 2012, he worked in the NIST Polymers Division as a guest researcher for investigating fracture behaviors of polymer materials and interfacial adhesion of composites. In addition, Dr. Kim worked at W.L. Gore & Associates as a scientist between 2019 to 2022, and Hitco carbon composites between 2008 to 2009 as an engineer.