The Yungang Grottoes, excavated during the 5th to 6th centuries AD, stand as a pinnacle of Buddhist sculpture, representing a precious world cultural heritage. Since their excavation, the grottoes have undergone multiple phases of painting, with a significant amount of pigment still present on the ...
electronics Article Nondestructive Testing of Hollowing Deterioration of the Yungang Grottoes Based on THz-TDS Ju Feng 1, Tianhua Meng 2,*, Yuhe Lu 2, Jianguang Ren 3, Guozhong Zhao 4, Hongmei Liu 2, Jin Yang 1 and Rong Huang 2 1 School of Geophysics and Information Technology, China ...