双房文化青铜器的型式学与年代学研究

<正>在辽东地区双房文化的器物群中,除了陶器以外,最为引人注目的便是所谓的"东北系青铜器"。这种具有鲜明地方特色和时代特征的青铜制品,除了见于辽东地区的双房文化以外,还广布于辽西、河北北部、朝鲜半岛和吉林、黑龙江两省的部分地区,长期以来一直为中外学术界所关注。     

试析铜鍑器耳突起装饰的象征意义

当中国北方草原地带的历史跨入公元前第一个千年后,由于种种的原因,发生于新石器中晚期的农业扩散对北方地带的深远影响渐渐终结。主要由于气候变化的原因,此前已渐变为畜     

论两汉时期皖南铜与皖南经济

皖南地区铜矿资源丰富,两汉时期的皖南属于丹阳郡,丹阳铜以质优量多而闻名全国.两汉时期皖南铜矿得到了较大规模的开采和冶炼,同时兴起了铸钱和铜镜制造业,从而扩大了皖南地方政府的财政来源,增强了皖南地区的经济实力,推动了皖南的农业和其它行业的发展,可以说皖南铜在皖南经济发展中发挥了极其重要的作用.     

LA-ICP-MS analysis of Late Bronze Age blue glass beads from Gurob,Egypt

Laser ablation-inductively coupled plasma-mass spectrometry (LA-ICP-MS) analysis was undertaken on 37 blue glass beads excavated from a tomb in the southern Faiyum region of northern Egypt. The tomb was undisturbed, contained the remains of seven females and two children, and dated between the reigns of Amenhotep I (1525–1504 bce ) and Tuthmosis III (1479–1425 bce ). The glass beads were coloured by copper and the trace element concentrations were compositionally consistent with glasses from Mesopotamia rather than from Egypt. Therefore, these glass beads represent a rare example of Mesopotamian glass to be discovered in Egypt, in addition to being some of the earliest glass found. Gurob is known to have been the site of a ‘harem palace' established in the reign of Tuthmosis III, the implication being that these beads represent luxury items transported to Egypt by high-ranking foreign women, possibly in connection with the harem palace.     

新干商代大墓青铜器腐蚀分析研究

为进一步了解新干商代大墓青铜器的腐蚀机理,用扫描电子显微镜、面探测器X衍射仪、离子色谱等仪器,对这批青铜器的腐蚀现象分三个方面进行了锈蚀结构、青铜基体、微观形貌观察的研究。研究结果表明,三种不同类型的腐蚀结构表面锈蚀成分主要是SnO2,样品表面锡含量均高于基体。漆古表面有龟裂纹,氧、锡元素分布从外至内层递减;铜元素从外至内递增。青铜器上残留土样中未检测出侵蚀性氯离子。实验结果可为保护这批青铜器提供科学依据。     

从殷墟出土铜铙看南方铜铙的年代

铜铙在我国南方地区发现较多,类型也很复杂。关于南方铜铙的年代,最早的一般断为商代,晚的为西周,也有一律断为春秋者。笔者认     

新见女性册命金文[女受]鼎及相关史实考论

新近刊布的[女受]鼎是一篇稀见的女性册命金文,其内容主要记载了西周时期两名女性贵族之间的一次改命,属于罕见的周代贵族女性职务性册命金文。与一般册命铭文书写不同的是,[女受]鼎中不见册命地点、史官、右者等册命礼仪的记载,更在篇首多出"退事于内宫"的特殊句式。[女受]鼎相关铭文特点不仅是早期册命金文的时代共性,也是女性贵族受命特殊性的反映。而"退事于内宫"句来源于铭辞中贵族女性"妫"对"[女受]"的褒奖之辞,妫称赞[女受]"唯汝聿型",即[女受]较好地效法了其先人的德行,[女受]因此在铭文篇首特意强调其在内宫之旧职。不唯如此,[女受]鼎的铭文书写还为周代贵族女性职务性册命提供了佐证,是一篇弥足珍贵的西周册命金文,具有重要的史料价值。     

The spatial scope of agglomeration economies in Brazil

This paper provides evidence about location and colocation patterns of manufacturing entrepreneurship and spatial scope of agglomeration economies in the context of a developing country. Using microgeographic data for all Brazilian manufacturing activities and distance-based measures, we find clear patterns of colocalization between entrants and existing establishments, and that these patterns occur mainly at short distances. For activities presenting colocalization between entrants and existing establishments, our results also indicate that a greater number of incumbent establishments in a given location positively affects the number of entrant establishments that decide to locate there, an effect that attenuates rapidly with distance (generally disappearing after 5 km). This pattern of attenuation is robust to both the inclusion of a comprehensive set of controls for observable and unobservable local characteristics and the use of instrumental variables to address remaining endogeneity concerns.     

铜片除锈强度考察与缓蚀效果分析

在青铜器除锈过程中,既要除去有害锈及其他杂质,又不损伤青铜器原貌,这就需要掌握一定的度。本研究用失重法定量地考察了不同除锈法和不同除锈剂对铜钱的除锈强度。结果表明,物理除锈法与化学除锈法均有明显的失重率。化学除锈中,5%左右的冰醋酸有较高的除锈强度。采用不同组合的BTA缓蚀剂对铜片进行保护,通过Tafel曲线分析其保护效果,以1.5%浓度的BTA与2%H_2O_2的组合液缓蚀效果明显。经盐雾腐蚀试验对此结论进行了验证。     

东周时期青铜剑首同心圆的制作技术研究

东周时期盛行佩剑之风,在剑上集中了多项杰出的装饰技术,其中位于青铜剑首端部的同心圆装饰以其精湛的制作技术引起了科技史界的关注。剑首同心圆由多圈高同心度、高凸起、薄壁状凸棱组成。对东周时期的多件剑首同心圆的考察表明剑首同心圆应用了类似轮制法成形工艺,预先单独铸造成形,后与剑茎铸接成一体。通过对车削法、石范铸造、失蜡铸造、陶范铸造等剑首同心圆可能的成形方法的分析,推测古人很可能不预制陶模,而是用轮制法直接车制出具有同心圆的剑首陶范,以陶范铸造法铸造剑首同心圆,此法是东周时期最可行的成形方法．其基础是新石器时代已采用的轮制法制陶技术及商周时期成熟的陶范处理技术。通过模板轮制法的模拟试验．成功地复制了青铜剑首同心圆。其过程为配制极细的泥料、制作带齿的模板、采用轮制法制作同心圆陶范并在相应的凸棱上刻下绳纹、焙烧陶范与浇注青铜液。