从创新成果管窥文物科技保护发展趋势

中国文物科技保护工作起步于20世纪50年代,始终紧跟我国社会经济和科学技术的发展,以应对文物保护及其保存和开放展示环境面临着的诸多挑战为导向,聚焦基础研究、保护技术与装备研发、保护制度与规范标准研究、保护技术平台建设等展开多项科技攻关,取得了一系列成果。本文着重从文物保护科学和技术创新成果进行梳理,阐述了我国文物科技工作的发展趋势。结果表明,我国的文物保护科学研究从闭门研究、各自为战到资源开放、互相合作、凝练共性、共克难关;从随意性到标准化,建立共同话语体系;以问题为导向,支撑作用日益显著;由抢救性保护向抢救性保护与预防性保护并重转变,基本实现了“十三五”规划提出的在理论、技术、装备、标准建设等方面取得系统突破的目标。     

桂平博物馆馆藏东汉双耳铜甑铸造工艺及其保护修复研究

广西桂平博物馆藏东汉铜甑对于研究广西地区青铜器冶铸技术的发展具有重要的研究价值。但器物长期保存于潮湿环境中,矿化严重、保存状况较差,亟须保护修复。本研究应用X射线影像观察、金相显微镜、扫描电镜及能谱分析、模拟实验验证等方法研究了器物的铸造工艺、合金成分以及锈蚀产物成分。结果表明该器物为整体铸造成形,器物铸造时使用了轮制技术、刮板造型工艺以及铸后刻纹的工艺,箅部范块制作过程是用器身模翻制器身范后脱模,将器身模的圈足部分切下,然后在圈足泥模上刻出箅部型腔。在此基础上,遵循最低限度干预原则,力求将传统的文物修复手段与现代修复理念相结合,通过除锈、修补等保护修复措施后,不但提高了器物的整体稳定性,而且达到了可以展陈,发掘文物潜在价值的要求。     

现代显微技术在纸质文物鉴定与修复中应用

现代显微技术在纸质文物的研究和修复中,是不可或缺的研究手段,因此应用显微镜对几件纸质文物进行了显微观察和分析。结果获得了纤维表面形态、纸张工艺和纤维特性等信息,同时获取了表面图像、分散纤维图像,纤维长、宽、配比等数据。所获信息对文物鉴定与修复工作有明显的参考意义,说明现代显微技术可以对纸质文物进行分析、鉴别,并为选配修复用纸和断代等提供参考依据。     

Technological and Cultural Change Among the Last Hunter-Gatherers of the Maghreb: The Capsian (10,000–6000 B.P.)

This paper focuses on the controversy surrounding the chronological interpretation of two subdivisions of a North African Epipaleolithic culture: Typical Capsian and Upper Capsian. Although originally defined as two evolutionary phases on the basis of stratigraphy, since the development of absolute dating methods they have been considered as contemporaneous. A new approach to the lithic technology of collections from the classic sites of Bortal Fakher, El-Mekta, Relilaï, and Aïn Dokkara allows us to redefine the industry and the traditional chronology. A wide-reaching comparison including major Capsian sites, and based on cultural attribution, chronology, and lithic technology, supports our preliminary results. Around 8000 B.P., a technological change occurred, corresponding with an environmental shift, and calls into question the contemporaneity of Typical and Upper Capsian. The causes, mechanisms, and implications of this technological change are integrated into a broader discussion leading to more questions about the way of life of the makers of the Capsian, their cultural evolution, and their persistence as hunter-gatherers in a Neolithic world.     

The manufacture of Aurignacian split-based points: an experimental challenge

Hunting is one of the areas of human activity that sees the most significant changes in the period from 40 000–35 000 BP in Europe. In this respect, the Aurignacian technocomplex shows technical innovations, notably with the fabrication of split-based points (SBP) in antler and the mass production of bladelets, arguably to serve as weapon armatures. Yet, little experiment work has been dedicated to this question. To begin to fill this gap, we have designed an experimental program devoted to testing and assessing the design, manufacture and use of Aurignacian weaponry.     

Technological successions in the Middle Stone Age sequence of Diepkloof Rock Shelter,Western Cape,South Africa

The southern African MSA comprises a series of phases of unique technological innovations that fuel current models on the evolutionary processes of Anatomically Modern Humans. However, the nature and variability of these technological phases remain poorly documented. This study reports on the previously unpublished sequence of Diepkloof Rock Shelter (South Africa) and investigates the main technological changes therein, particularly emphasizing the emergence, succession and disappearance of the Still Bay (SB) and the Howiesons Poort (HP). We argue for technological change that occurred at different rates and under the influence of variable driving factors. Our model implies that the SB and the HP are not related to the influx of new populations but have regionally specific origins. Unlike the other techno-complexes, the HP at Diepkloof is subdivided into different phases (Early, Intermediate and Late) but only the upper phases resemble the so-called “classic” HP. Finally, the technological sequence of Diepkloof questions the homogeneous picture which has been so far assumed for the southern African MSA and places emphasis on the importance of exploring long regional sequences.     

The Kulbulak Bladelet Tradition in The Upper Paleolithic of Central Asia

The article describes lithic industries of the Upper Paleolithic levels of Kulbulak, Uzbekistan, a key site in southwestern Central Asia based on materials from excavations at several sites in the western and northwestern Pamir– Tien Shan region (Kulbulak, Kyzyl-Alma-2, Dodekatym-2, and Shugnou). A new cultural and technological tradition is introduced, for which the authors suggest the name Kulbulakian. Its distinctive features are the bladelet technique and a microlithic set including backed pieces and triangular microliths. Stages in the evolution of the Kulbulakian tradition are reconstructed: origins, development, peak, and disappearance of the carinated technology. Industries belonging to this tradition have shaped the general appearance of the Upper Paleolithic in the area in question.     

The Bohunician in Moravia and Adjoining Regions

The Middle to Upper Paleolithic transition in the Middle Danube area is characterized by the presence of two transitional technocomplexes, the Bohunician and the Szeletian, together with the early appearance of the Aurignacian. The Bohunician lacks a local predecessor and seems to be intrusive to the area. Both the Bohunician typology and technology combine Middle and the Upper Paleolithic components. Although the Bohunician sites are mostly concentrated within the Brno basin, collections with characteristic traces of Bohunician technology have been documented during the same interval in surrounding areas, as well as far to the south and east. A preliminary comparison of the sites indicates a high degree of similarity among assemblages and may represent the same expansion event hypothetically associated with anatomically modern humans.     

Introduction

Abstract

For all of its political drama, the health care debate appears consumed with bureaucratic minutiae quite distant from political philosophy. Yet in important respects that debate is intimately connected with the founding premises of the modern technological project of the mastery of nature for the relief of man's estate as envisioned by René Descartes and Francis Bacon. This essay uses a recent discussion of the health care debate by bioethicist Daniel Callahan to raise some fundamental questions about the role of technology in our medical culture. It argues that modern health care is the Cartesian project come of age, and it uses Descartes' Discourse on Method to reflect on the possibility of a sensible politics of technology in our time.     

良渚文化漆器初探

漆器是良渚文化的重要器类之一,本文从胎质、漆色、髹饰技法和纹饰等方面梳理了良渚文化漆器的工艺特征,并根据出土单位认为墓葬出土的漆器应为仪式用具,填嵌玉石的漆器可能是财富和身份的一种标志,非墓葬单位出土的漆器应为生活用具。良渚文化漆器制作技术继承了长江下游更早的史前文化漆工艺,并有较大的创新与进步。