青铜文物缓蚀剂效率及封护剂抗腐蚀能力的比较研究

为评价青铜文物缓蚀剂效率及封护剂抗腐蚀能力进行了两项电化学实验。一是利用直流腐蚀的极化电阻法对缓蚀效率评价,二是应用恒电位交流阻抗法对涂层的抗腐蚀效率评价。实验表明,复合缓蚀剂的缓蚀效率优于单一缓蚀剂如AMT、BTA,在模拟中性土壤介质的水溶液中各自缓蚀效率分别为88.7%、94.6%,两者组成复合缓蚀剂后其缓蚀效率高达98.8%,这是发挥其缓蚀剂各组分的协同效应的结果。应用恒电位交流阻抗实验,可以更好地理解附着有封护层时复杂的腐蚀过程。结果表明,石蜡涂层样品的Nyquist谱图出现扩散过程引起的阻抗特征;聚乙烯醇缩丁醛涂层、Paraloid B72涂层、空白样(缓蚀层BTA)三种样品Nyquist谱图均是由于涂层微孔引起的阻抗特征,在同一浓度下其抗腐蚀性能排序呈依次递减趋势。     

地理资源造成史前南北陶器装饰风格的差异

新石器时代,南北陶器装饰已出现不同面貌,大体说来,黄河中上游为一种,表现为彩绘的样式：长江中游为一种,表现出素面刻划的特征。造成差异的原因,地理资源即无机质矿物颜料的多寡是第一位的,这一推论大体符合彩陶分布状况,和历史献记载以及现代探矿资料。     

卢文弨校勘学思想与方法

卢文弨,清乾嘉时代著名校勘学家。本文就其校勘学思想与所用的方法略作论述。     

Unfinished and Paired Logboats from Bavaria, Germany

Though Bavaria is far inland, at least 20 logboats are known, but only recently have some been properly recorded. This paper deals with two vessels discovered in the early 1990s. The remains at Laufen-Pfaffing represent a semi-manufactured logboat, which was purposely sunk as was the custom in Austria until the mid-20th century. The vessel from Wessobrunn-Blaik is also unfinished and shows several tool-marks. It is too narrow to float on its own: therefore it is part of a paired logboat. There is plenty of archaeological evidence for this kind of craft, but no ethnographic evidence. Apart from use as ferries, other uses are discussed.
© 2005 The Nautical Archaeology Society     

破损丝绸服饰文物的保护与修复研究

为探索出土破损丝绸服饰文物的保护与修复方法 ,以一批出土的明代破损丝绸服饰为研究对象 ,根据文物的破损状况 ,采用传统的手工衬补缝合法 ,运用不同的针法技能 ,完成了破损百褶裙 ,素缎广袖长袍等的修复工作。修复后的服饰仍能保持真丝柔软特性。研究表明 ,本方法是目前最为适宜的方法。     

中国农民工问题研究述论

进入21世纪以来,"农民工"问题渐成为学术关注的焦点之一。从现状与对策角度进行的研究较多,从历史角度进行的研究有待加强。目前学界围绕农民工的定义、"农民工"现象的起源、农民工问题的历史发展及其处理对策变迁、解决农民工问题的深层次困难、解决农民工问题的前景与基本思路,展开了有关讨论。由于"农民工"在我国城镇化、工业化与现代化进程中将长期存在,因此,"农民工"问题将持续成为学术关注的热点问题。     

Regional survey and the economic geographies of Britain 1930–1939

This paper re-considers the history of economic geography in the interwar period in Britain. The activities of the discipline are considered in the context of the commercial geographies of this time, and the intensive round of industrial and social surveys undertaken at a regional level in Britain in the period. Taken together, these economic geographies constructed a range of representational and material spaces and helped construct industrial regions characterized by particular types of places, peoples and performances. These surveys, and the production of the economic geographies that they facilitated, became a key intellectual arena where conflicting ideas about the political and economic management of the industrial region and the national economic were acted out. Following the intention of recent work into the histories of geographical knowledge, the essay will seek out the lateral associations of economic geography, paying particular attention to politically situated nature of the economic geographies produced by academics, regional organizations and the Labour Party.     

湖北丹江口市玉皇庙遗址调查简报

玉皇庙遗址位于湖北省丹江口市境内,现为丹江口水库中一小岛。1995年,文物工作者对南水北调工程文物调查时发现该遗址。在遗址采集新石器时代和周代遗物。新石器时代遗物与青龙泉和大寺遗址、朱家台遗址和乱石滩遗址等出土的同期遗物相近。周代遗物与官山河两岸早年发现的同期遗物相似。     

日本的产业技术扶持政策与实施手段 以太阳能产业为例

日本经济的核心是日本企业以持续技术革新为基础的国际竞争力。日本企业之所以能持续进行技术革新是与日本政府的政策引导和支持分不开的。本文指出日本政府在国家总体目标之下,利用自身的信息优势和资源优势,根据时代的变迁,制定不同的产业技术政策,通过政策引导,使企业能够明确技术革新的方向,并通过对市场的增进为新技术提供需求,从而促进新兴产业的发展。     

长兴县老门调查研究

门是江南水乡圩田系统的重要组成部分,经调查,浙江省长兴县现存有清代至民国时期的老门20余处,相关文物4处。门包括一套完整的水闸系统,形制可分一般式、涵洞式两种,部分门上还有多处题刻。这些老门对研究长江中下游地区特别是太湖流域的农业、水利发展史等,具有重要的实物价值。