河西石窟阙形龛溯源刍议

阙形龛是汉地工匠对佛教艺术进行改造的一次尝试。由于西王母图像和佛教图像长期存在互动关系,是汉代工匠改造佛教艺术的出发点,因此如果追溯其源头,西王母图像成为此文讨论的切入点。通过对汉画中"西王母+双阙"模式和佛教艺术中"补处菩萨+阙形龛"模式的图像与意涵的比较、巴蜀与河西之间的交通以及河西地区天堂观念的考察,此文推断阙形龛的创意应该是来自四川地区汉画中的"西王母+双阙"模式。     

Characterizations of palace lantern tassels preserved in The Palace Museum,Beijing, by UPLC-ESI-Q-TOF

Palace lanterns were important and highly visible decorations in the imperial palace in Beijing, China, during the Qing dynasty (1636–1912). Most lanterns had colourful tassels made of fibres. The study performed a comprehensive investigation of the materials and dyes used for palace lantern tassels preserved in The Palace Museum, Beijing. Eight samples with different colours, including yellow, green and red, from five palace lanterns were analysed. By using ultra-performance liquid chromatography combined with time-of-flight mass spectrometry, the compositions of the dyes were identified quickly, and thus the dyes' origins were explored. A X-ray fluorescence spectrometer assisted in the detection of whether a mordant was used during the dyeing process. As a result, the tassels were all made of silk, discovered through the use of microscopic observation and micro-Fourier transform infrared spectrometry analysis. Different dyeing techniques were found in these tassels: yellow tassels were dyed by cork tree or turmeric by a direct dyeing method; greens were dyed by pagoda bud with an iron mordant, or by the combination of cork tree and indigo using multi-dyeing method; and red tassels were coloured with different acid red industrial dyes. These results provide valuable data for the conservation of ancient textile tassels and contribute to the investigation of other hanging tags.