Domestic Ivory Trade Control System for Japan;
日本的象牙国内贸易监控体制
Study on the environment of preserving the ancient ivory unearthed from Chengdu Jinsha site,China;
成都金沙出土古象牙赋存环境研究
Based on the works of literature, we put forward several new protecting materials, that is, PMMA/SiO_2 hybrid, HEC/ SiO_2 hybrid, PVA/ SiO_2 hybrid, and PDMS/ SiO_2 hybrid made with sol-gel method for protecting the ancient ivory unearthed from Jinsha .
为研制新型文物保护材料,用于成都市金沙古象牙文物的保存与加固,研究了溶胶-凝胶法制备的有机无机杂化材料用于古象牙保护的可能性,分别制备出了PMMA/SiO_2杂化材料、HEC/SiO_2杂化材料、PVA/SiO_2杂化材料和PDMS/SiO_2杂化材料,通过调节反应温度、有机物与无机物之间的比例及其它反应助剂的用量等,详细研究了各种工艺参数对杂化材料凝胶时间及宏微观结构的影响;用红外光谱仪、扫描电镜、高温综合热分析仪、能谱仪等对杂化材料结构与性能进行表征,确定了以上四种杂化材料制备的优化工艺参数。
The probability feasibility for protecting Jin Sha ancient ivory using modified sodium silicate was studied in the present paper.
为了更好地保护金沙古象牙,在对钠水玻璃进行改性研究的同时,研究了改性钠水玻璃应用于金沙古象牙保护的可行性。
The experiment was carried out to compare the nutritions of Typha latifolia and some kinds of cultivated vegetables.
对珍稀水生蔬菜象牙菜与常见栽培蔬菜小白菜、菜心、节瓜、辣椒、茄子、马铃薯、胡萝卜、莲藕等进行营养成分比较分析,结果表明,象牙菜的Vc含量丰富,可溶性糖和可溶性蛋白质含量较高,而硝酸盐含量极低,是一种营养丰富的水生蔬菜,具有广阔的开发前景。
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