There are more than 3000 Westem Han Dynasty terra-cotta warriors collected in Xianyang Museum.The color layer of these terra-cotta warriors has flaked,which
Optical imaging techniques,because of the non-invasive,non-destructive and fast,large-scale murals reveal a variety of materials and implicit information,ha
In order to develop polymer materials as protective coatings,much attention has been focused on the fluorinated polymer,which is able to create a surface pe
Paper was the important materials for recording cultural achievement.The evaluation of age,kinds and status of degradation of paper are the basis of long-te