青铜文物保护技术的传承与发展

本文回顾了二十世纪青铜文物保护技术及相关的问题,随着二十一世纪的到来,现代社会的高度发展,提出了青铜文物保护即保护技术与工艺研究二个部分,并应制定相应的法律保护传统工艺的设想。     

安徽南陵出土部分青铜器研究

安徽省南陵县是长江下游地区最早而且规模最大的冶炼中心之一,其古代矿冶遗址可上溯至西周晚期。本研究对南陵出土的不同年代和类别的青铜器样品进行了金相检测及合金成分定量分析。结果表明,只有容器存在铜铅二元合金和铜锡铅三元合金,但是热锻淬火的容器却不含铅,含锡量恰好位于适合该工艺操作并具有良好性能的区间。兵器、工具、车马饰均为铜锡二元合金,说明当时的工匠对于合金成分配比与性能的关系有明确的认识。越式鼎腹部样品具有热锻淬火马氏体组织,同样的金属结构还见于汉代铜锣等乐器、峡江地区战国中晚期青铜剑、江都大桥镇南朝青铜器窖藏出土的多件青铜容器,而镇江地区出土吴国青铜戈则具有铸造淬火组织,工艺稍有差别。这些器物中发现高锡青铜淬火组织不是偶然的,高锡青铜热锻淬火技术至少可以上溯至春秋战国时期,用以改善高锡青铜的机械性能。     

中国的早期铜器与青铜器的起源

中国公元前16世纪以前的早期铜器已在50多个地点发现500多件,主要分布在四个地区,其年代最早为公元前4500年。早期铜器的发展,经历了公元前4500～前2500年尝试冶炼各种原始铜合金的发生期,公元前2500～前2000年以红铜为主的发展期和公元前2000～前1600年以青铜为主的成熟期。中国古代青铜器分别起源于西北地区和中原地区,青铜时代开始于公元前2000年前后。     

三星堆一号青铜神树的三维数字建模与静力学分析

结构稳定性是评估文物安全的重要方面。三星堆二号坑出土1号青铜树体量庞大、结构复杂,且存在腐蚀、裂纹等危险因素,为了充分记录、评估其保存状况,本研究在原始几何形状和内部构造的基础上,利用三维数字建模技术,建立其几何模型和数值模型,并估算出青铜神树的质量分布和质心位置等无法实地测量的数据,并使用有限元方法,从应力和位移的角度分析青铜树的静置状态下的安全性。经过有限元模拟和材料力学简化计算,发现龙身和树干连接处、树枝根部应力较大,是易受损区域。     

辽东地区双房式陶壶研究

本文经类型学研究,将辽东地区两周时期流行的双房式陶壶分为三期,并对年代进行了讨论.在此基础上,通过对其内涵与外延的把握提出三点认识:1.双房式陶壶的祖型可追溯到庙后山文化,在以后的发展过程中逐渐形成以太子河、浑河为中心,分布范围遍及辽东地区具有显著时段特征的一种考古遗存.2.将双房式陶壶分为A、B两系,认为它们是同源陶壶谱系的两个发展序列.3.所谓"美松里"陶壶,是双房式陶壶自西周中晚期发生分野以后,向东流入西北朝鲜地区发展的一支.同时这种陶壶的北传,还对西团山文化产生了较大影响.     

西周初期墓葬铜礼器器用区位研究——以随州叶家山为中心

随葬礼器在墓中的区位特征对于判断随葬品的性质与用途,探求墓葬器用观念等都具有重要意义。随州叶家山、宝鸡石鼓山墓地可分别作为西周初期诸侯国与王畿地区随葬青铜礼器组合的特点的代表。结合过去发现的同时期墓葬资料可以发现早在西周初期周人已建立起一套较完备的以食器为中心的器用组合关系。就其在墓葬中的区位而言,存在着(1)按大类分置;(2)食、酒水器分置;(3)酒水器聚置,食器分置于酒、水器两端等三种情形,前两种体现出周人重食的文化特征,后一种强调酒器似与周初西迁的殷遗民有关。     

Prehistoric hunting pressure estimated by the age composition of excavated sika deer (Cervus Nippon) using the annual layer of tooth cement

Age of excavated sika deer was determined not only by the cement-annuli method but also by the observation method to avoid unnecessary destruction of archaeological materials. The observation method is based on tooth replacement, wear index and the appearance of cervical lines on the molar teeth. Stepwise discriminant analysis was used to establish a criterion for the age determination of excavated mandibles. Then the annulation method was carried out for well-preserved specimens older than 3–5 years. The age composition of excavated deer mandibles seems to have changed through the Jomon Period. Age composition at the Torihama sites (the Early Jomon Period) was characterized by an abundance of aged individuals, showing a close similarity with that of the recent deer population under protected conditions. Deer from the Kidosaku and Yahagi sites (the Late Jomon Period) and the SambuUbayama site (the Latest Jomon Period) were composed mainly of deer younger than 5 years, which seems to correspond to that of the recent hunted population living under natural conditions in Hokkaido. These data suggest that the hunting pressure increased during the Late and Latest Jomon Periods and compares with the pressures on recent hunted populations of sika deer.     

Age heaping patterns in Mosaic data

This paper analyzes the extent and nature of age-misreporting in the Mosaic data, currently one of the largest historical census microdata infrastructures for continental Europe. We use demographic measures known as the age heaping indexes to explore regional, periodic and sex-specific patterns of age misreporting across 115 Mosaic regional datafiles, from Catalonia to Moscow, during Europe's demographic ancien régime and thereafter. The paper's second significant contribution is the comparison of Mosaic-based results to those derived from two other big census data projects—IPUMS and NAPP. Beyond this exploratory data analysis, we also investigate possible sources of variation in age heaping across Mosaic data by examining how it relates to variability in socioeconomic, institutional, and environmental conditions. Overall, our systematic inquiry into quality of age reporting in Mosaic consolidates the project's potentially transformative role in comparative historical family demography and suggests some avenues for future research.     

Nationality and religion

Although both of the categories of nationality and religion are difficult to define, it is nonetheless necessary to do so. Having done so, one can proceed with clarifying what is distinctive of each of them, and, thus, be in a position to ascertain their points of convergence and difference. Evaluation of the contribution of Anthony Smith to our understanding of the relation between nationality and religion is the point of departure for a re‐examination of the relation.