孔头沟遗址铭文芯与西周铭文制作方法

陕西岐山孔头沟遗址铸铜作坊内出土的一件西周晚期刻字陶范,其上残存3字,皆阴刻、反书。从形制、颜色、字形、浇铸面金属元素成分等方面,判断该范为芯而非模,阴刻字乃底稿线。从铭文字体与格线、制范技术基础、出土铜器铭文等多方面论证,该铭文芯所见西周铭文制作方法,可称为"堆塑泥条芯作铭法"。     

山东新泰出土东周青铜复合剑制作技术研究

为探讨东周青铜复合剑的制作技术,采用X光探伤、CT、XRF、金相分析等方法,对出土于山东新泰周家庄战国早期齐国墓的2把青铜复合剑进行了内部结构、制作工艺、合金技术、金相组织等方面的研究.结果表明:2把青铜复合剑均采用低锡合金和高锡合金两种材料复合而成.在检测分析的基础上,讨论了新泰出土的2把青铜复合剑与吴越特色青铜复合剑制作技术上的差异:在结构上,低锡区设置在剑脊的两侧,其截面结构呈现多种形式,与高锡区铸接,浑然一体;在成分上,低锡区含锡量仅为4％,具有锡青铜最佳的延伸率.结合青铜复合剑剑柄的特色,认为虽然新泰出土复合剑的内部结构与已研究的吴越特色青铜复合剑有明显差异,但制作理念应是一脉相承的.     

Wall-Base Ventilation System to Control Rising Damp: A Case Study of Vilar de Frades Historical Church in Portugal

Moisture transfer in the walls in direct contact with the ground leads to the migration of soluble salts, which are responsible for many building pathologies. The treatment of rising damp in historical heritage walls is a very complex procedure. The traditional techniques currently used to minimize rising damp are, in most cases, slight effective or too expensive, especially when dealing with walls of considerable thickness and/or heterogeneous materials such as the historical monuments. The main purpose of this work is to present the experimental results of the rising damp treatment conducted, over 3 years, in the Vilar de Frades Church, in northern Portugal, using the wall-base ventilation technology. The results showed that, for this particular climate conditions, the best solution is to operate seasonally, with outside air admitted to the system during summer months and inside air admitted to the system during winter months.     

“小白礁Ⅰ号”沉船部分木质文物微生物病害观察与损伤评估

为掌握宁波"小白礁Ⅰ号"古沉船船体结构的状况,以及为该沉船的后续保护提供科学依据,本研究利用光学显微镜和电子显微镜技术,在显微和亚显微水平上观察了该沉船部分木质文物的组织和细胞结构。观察分析发现,对该沉船木质文物有较大影响的微生物主要是侵蚀细菌(Erosion bacteria,EB)和钻管细菌(Tunneling bacteria,TB);借助文献提供的标准,评估了该沉船不同部位木质文物的结构现状及不同备检样品中的细菌的侵蚀程度。评价结果表明沉船木质文物的侵蚀情况从轻度到完全损坏程度不同。本研究也分析了导致木质文物损伤程度差异的原因,并根据分析结果就该沉船木质文物保护涉及的生物学问题提出了建议。     

广西上林县馆藏东汉至南朝铜鼓科技分析研究

为配合保护修复的需要,利用金相显微镜、扫描电镜能谱仪对广西上林县馆藏6面东汉至南朝时期的冷水冲型铜鼓进行了科技分析。结果表明,这6面铜鼓均为铜锡铅三元合金组成,且为铸造成型,其工艺利用泥范法和失蜡法相结合的方法。由于冷水冲型铜鼓的合金成分和铸造工艺研究尚未见报道,因此,本研究分析数据为更深入研究冷水冲型铜鼓的科技内涵提供了重要参考。     

The Evolution of Theory, Method and Technique in Southern African Rock Art Research

Southern African rock art research has progressed from an essentially denigrating social and political milieu, through an empiricist period, to contemporary social and historical approaches. Empiricism, once thought to be the salvation of southern African rock art research, was a theoretically and methodologically flawed enterprise. Attempts to see the art through an emic perspective facilitated by copious nineteenth- and twentieth-century San ethnography is a more useful approach. It began briefly, but was then abandoned, in the nineteenth century. Today, diverse theoretical and methodological approaches are being constructed on an ethnographic foundation. The centrality of the San in South African national identity has been recognized.

Biofilm growth in human skeletal material from ancient Mesopotamia

Investigators have long recognised the effects of microbial activity on archaeological bone. These investigators, however, have focused on single or groups of microbes rather than on complex microbial aggregates such as biofilms, a focus that has affected our understanding of archaeological bone biodeterioration. In this paper, we report on the investigation of a biofilm in archaeological human bone from the site of Tell Leilan, Syria (2900–1900 BCE). Scanning electron microscopy indicated that the biofilm is characterised by single cells and microcolonies of bacteria and fungi, as well as calcite crystals that were all embedded within extracellular polymeric substances. Using culture techniques and DNA sequencing, we isolated and identified several microbes from the biofilm including Amycolatopsis sp., Penicillium chrysogenum, Aspergillus sp., Chaetomium sp., and Cladosporium sp. Having characterised the Leilan biofilm, we are now closer to understanding the complex process of bone biodeterioration in archaeological bone collections.     

瓷器热释光测定年代研究

本工作从标准的(即线性的)前剂量技术着手,研究了瓷器热释光测定年代的方法。在这个研究中,发现了瓷器的灵敏度对剂量的非线性响应和灵敏度随剂量变化的指数模式。因此,一个用饱和指数拟合的方法被提了出来。实验表明,这是一个测定瓷器年代的成功方法。另外,还对一些与测定年代有关的复杂因素进行了讨论。例如,当少数瓷器的灵敏度与剂量不呈指数关系时,就要改变拟合模式或采用B的平均值方法等。     

原始瓷的三种年代测定方法结果比较

采用常规的热释光细粒混合矿物法、热释光前剂量饱和指数法以及单片再生剂量光释光法三种测年方法,对中国上海、浙江萧山地区出土的7件西周、春秋、战国以及汉代的原始瓷样品进行了年代测定,并对测得的每个样品的3个年代结果与已知年代进行比对。用热释光细粒混合矿物法测定得到了较为理想的年代结果,与样品的已知年代结果相比吻合得较好。用热释光前剂量饱和指数法测定得到了该方法的上限饱和年代,即距今1800年左右。用再生剂量光释光法测定得到了这些样品的年代,只是实际年代的50％-80％左右,结果不太理想。因此,采用热释光细粒混合矿物法测定这类样品的年代,只要解决了制样问题,还是目前较好的测年方法。     

Large scale smelting of speiss and arsenical copper at Early Bronze Age Arisman,Iran

We report analyses of different slag types found at the Early Bronze Age site of Arisman in North-West Iran. Here, an estimated 20 tons of slag provide evidence of sustained and large-scale production of metal, using both furnaces and crucibles. The results show that both speiss, an iron-arsenic alloy, and arsenical copper were produced, apparently side-by-side at the same site but using different ores and processes. We offer a tentative outline of the metallurgical processes involved in the production of these arsenic alloys and an explanation why speiss needed to be produced from arsenopyrite in a separate step, instead of using the mineral in its native form as a source for arsenic. We suggest that the speiss was then added either to secondary copper ore or to separately smelted copper metal, in order finally to produce arsenical copper in a regular and well-controlled process.