印谱古籍中的印油老化研究

存世印谱中比较常见的一类病害是印蜕中印油老化导致的渗化问题。研究表明,印油渗化不仅会在印蜕四周形成黄色或棕色的油渍,而且会导致纸张pH值降低,影响印谱的长久保存。通过对印泥中常用的蓖麻油、菜籽油、茶油、调和印油等六种油脂进行模拟老化实验,发现油脂老化后普遍存在变色、pH值下降和渗化问题。采用气相色谱-质谱联用技术分析老化前后的油脂样品,发现油脂在老化过程中,不饱和脂肪酸含量降低,饱和脂肪酸占比增加,并形成了壬二酸等脂肪族羧酸。油脂老化过程中的成分变化,导致了变色、酸化、渗化等一系列问题。在印谱实物样品中也发现了饱和脂肪酸。在印谱的保护工作中,应对油脂的老化进行有针对性的处理。     

POTENTIALS FOR MIGRATION AND MOBILITY AMONG OIL WORKERS IN THE RUSSIAN NORTH

High population mobility, mainly in the form of out-migration, is a characteristic feature of the post-Soviet Russian North. As subsidies from the centre were significantly cut, living standards and the number of inhabitants in many Russian peripheries declined considerably. Nevertheless, there are also prospering regions and industry sectors in these parts of Russia, which are often related to and dependent on the exploitation of natural resources. After introducing general Soviet and post-Soviet mobility and migration patterns in the north of Russia, this article examines the mobility behaviour of oil workers. The analyses are based on a case study of an oil company (SeverTEK) from the Komi Republic and incorporate different statistical approaches. The purpose of the study is to assess past, present and future mobility behaviour of those in northern regions who are benefitting from post-Soviet transition and will most likely contribute most to a positive development of the Russian North. The results show that the surveyed employees of SeverTEK have migrated in the past mainly from Siberia, the Far East, and the now independent countries of the former Soviet Union to northern and central parts of European Russia. The present mobility behaviour is strongly characteristic of shift work employment with long-distance commuting. An analysis of intended migration indentifies strong potentials for future migrations among the oil workers of the case study. It appears that many employees are ready to leave northern regions as soon as their job situation allows it. Therefore, unlike in other resource peripheries such as Western Australia, long-distance commuting is in Russia not used as a decentralization measure; instead it offers opportunities for reducing the problematically high population density of the post-Soviet North.     

The Tung Oil Boom in Australasia: a Network Perspective

Ideas about networks are explored in the context of the interest within the British Empire and the United States of America in planting Tung Oil trees (Aleurites fordii) during the 1920s and 1930s. Closer attention is paid to the Australian and New Zealand experience and short-lived enthusiasm for the search for seeds, the collation of information on growth rates, and the planting of Tung trees. The paper briefly distinguishes various types of network research in human geography and concludes by raising some questions about space and time in network approaches in the social sciences more generally.     

故宫古华轩黑漆描金落地罩装饰层的材料工艺研究

故宫乾隆花园内的古华轩外檐落地罩是北方地区建筑装修使用大漆工艺的罕见案例。为探明其装饰层材料工艺做法,综合利用光学显微分析、免疫荧光染色分析、X射线荧光光谱分析、扫描电子显微镜-X射线能谱分析、热裂解-气相色谱/质谱联用等多种技术,结合传统漆作文献记载和清宫档案,详细厘清了装饰层的材料组分、制作工艺及营缮历史。研究表明,古华轩落地罩保存了八个时期的装饰层,整体使用调入桐油的大漆髹饰,不同时期的黑漆分别采取添加炭黑、添加铁盐两种方法制得。金饰做法包括描金、贴金两种。初始营缮工艺为捎当灰—布漆—漆灰—黑漆—色漆—金饰；重缮时做法相对简化,并将原先的一色金改为两色金。     

海洋条件下的水下文物埋藏环境概述

出水文物原本埋藏于水下环境,多种破坏因素协同作用,导致病害严重。在对其进行保护修复处理前,需要全面了解文物埋藏历程及病害机理。文物的腐蚀破坏是其与周围环境相互作用的结果。本研究从海水、海洋生物和底质等三大方面探究海洋条件下的水下埋藏环境,并就中国水下考古常见的出水文物类型如陶瓷器、石质、金属质及木质文物的病害类型及原因作简要阐述。