妙趣横生的土族儿歌

自古以来,歌谣作为民间文学的体裁之一,记载着各民族丰富多彩的生活。在《诗经》中,就有“心之忧关,我歌且谣”的说法。生活在青藏高原的土族是甘青地区特有的少数民族,流传于土族群众中充满着浓郁民族风格和乡土气息的儿童歌谣就是土族文化宝库中的一颗明珠,散发着独特的魅力。本文以流传于青海大通,     

基于三维扫描模型的兵马俑足踝有限元分析

利用三维扫描技术获取兵马俑残片的三维点云数据,结合Geomagic Studio和Hypermesh建立高精度的兵马俑足踝残片三维实体网格模型。通过基于ABAQUS的重力作用下的有限元分析,研究足踝部分的Von Mises应力和变形特征,以确定足踝处的受力薄弱部位。为进一步探究模型各残片的最佳点云简化比例,采用点云简化模型进行相同工况的有限元分析,以验证点云简化的可靠性。结果表明:结构在重力作用下可保持安全稳定的状态,相对薄弱部位位于左腿足踝处;对于大部分残片,其最佳简化比例在60%～70%,简化后可有效缩短模型实体化处理时间;采用简化模型得到的有限元结果,其最大Mises应力相比于原始模型的误差小于15%,且应力云图和变形图形状接近,模型简化具有可靠性。     

一种油画颜料层裂纹的修复技术分析

油画颜料层裂纹是一种常见的病害类型,严重的裂纹会影响作品的视觉效果。裂纹修复所采取的措施应以缓解病害,延续寿命为目标,避免不当修复对其文物价值的改变。本研究通过红外光谱和便携式X荧光能谱分析,初步确定了裂纹产生的原因与材料技法和机械作用力有关,长期的温湿度波动则是最终形成老化裂纹的重要因素。对两类常见的裂纹加固方法比较后得出结论,色蜡改变了原画的光泽度和肌理层,动物胶调碳酸钙更适宜作为裂纹的填补材料。观察修复后的油画保存状况,发现经过修复的颜料层仍存在继续劣化的风险,必须维持保存环境的相对稳定,方可延长修复周期。     

从知识、技术到智识传统:“非遗”主题展览的话语分析

非物质文化遗产(非遗)作为博物馆展览的主题已成为常态。经过多年的发展,"非遗"主题展览已经形成了相对模式化的叙事类型和同质化的发展特征。这一现状反映了多重话语博弈下的行业惯习,同时也体现了非遗作为一种文化遗产行政话语所应有的限度。"非遗"主题展览应与强调多元、互动与阐释性的新博物馆学发展趋势相呼应,关注非遗变化与改造的实践性,摆脱"非遗"话语与行业惯习接驳的逻辑自洽,反思性的回归博物馆多线和声的智识传统,从而使非遗与展览的关联拥有更多的可能性。     

HOME-BASED MEDICAL SERVICES GET POPULAR IN LHASA

正Whenever anybody feels uncomfortable,a doctor,once called,will immediately come to provide his or her services.As part of the new wave of doctors providing their services to smaller communities,"homebased doctors"are gradually being introduced to common civilian homes.At present,Lhasa City has been positively promoted the home-     

RELATIVES COMING TOGETHER

正The sun shines upon the earth in spring.The Paltang Xuanzi is a well-known dance from Paltang County,Garze Tibetan Autonomous Prefecture.In the village committee of Yarigon's Daxu Village,there are over 100 villagers gathered together,discussing something of great importance."Today,I have a bit of good news!"said Sonam Drakpa,party secretary of the town of Yarigong,while surrounded by locals."Lu Guangrong,the party secretary of Chengdu's Xihanggang Street in     

破土器、庖厨刀或铡草刀——长江下游新石器时代及早期青铜时代石器分析之二

三角形石刀是长江下游地区良渚文化和青铜时代早期文化的一种特殊形状的石器,其功能众说不一,不少考古学家认为它是作为农业工具使用的"破土器"。通过对浙江湖州毘山遗址出土的两件商代三角形石刀进行微痕分析,并与采用复制石器进行实验考古后所得到的微痕进行比较,可知,毘山三角形石刀不是"破土器",而可能是用来切断植物茎叶的铡刀。     

Crowdsourcing Model Research for the Identification of Post-Earthquake Rescue Objects

The quick and accurate identification of post-earthquake rescue objects can minimize the casualties and property loss caused by earthquakes. With the rapid development of remote sensing technology, rescue objects can be identified through high-resolution remote sensing images. There are two main categories of approaches to identify rescue object through high-resolution images: automatic extraction by a computer and visual judgment by professionals. Although results can be obtained quickly by using automatic extraction, the accuracy of the results is unacceptably low. For visual judgment, the large demands for time and professionals restrict its wide practical application. In this study, we introduce crowdsourcing into the identification of post-earthquake rescue objects. First, we integrate the advantages of the computer and crowdsourcing, which means that the computer takes advantage of the speed of information processing, while crowdsourcing makes full use of human recognition capabilities. Second, we take visual judgment tasks out of the hands of professionals and entrust the tasks to workers in a crowdsourcing platform. Not only are the human resources infinite, but we can also improve the efficiency of identifying rescue objects. Third, we propose a crowdsourcing model that improves the quality of the results and saves human resources. Finally, experimental results demonstrate that our solution is feasible.     

中国对瑞典国最早的全面记述——述清末写本《瑞典国记略》之历史由来

本文从中国对瑞典认识和记述的历史这一角度,介绍并论述了作者收藏的孤本书籍《瑞典国记略》。文章指出,迄至清朝末年,中国对瑞典的认识经历了如下六个阶段:第一阶段,从明末到清代康熙中期。通过西洋传教士的介绍,对瑞典开始有初步的了解。第二阶段,从康熙晚期到道光初年。主要是清朝官方和个别出洋商人,通过出使他国偶然接触到的瑞典国民并向所在国探问相关情况;或是与瑞典来华商船的直接接触;或是海外经商听闻的间接传说,对瑞典有了中国人自己的记述。第三阶段,道光二十年鸦片战争爆发前短暂的若千年期间。西洋传教士开始重新向中国介绍包括瑞典国在内的世界地理知识。第四阶段,从鸦片战争之后到同治四年。在中国人自己撰述的全球地理总志中,对瑞典有了更为丰富和清晰的记述。第五阶段,从同治六年到光绪中期。留下了一批中国人考察游历瑞典的日记,对瑞典的认识变得非常具体明晰,但还很不系统。第六阶段,光绪中期至清王朝结束。《瑞典国记略》就是这一时期的标志性著述,它是中国对瑞典最早的全面系统的记述。这部书虽然没有在社会上正式刊布,但在中国认识瑞典的历史上,仍具有里程碑式意义。