传统方法加固馆藏浮放文物抗震性能试验

为探索馆藏浮放文物的有效抗震加固方法,采用振动台试验手段,研究了传统方法加固浮放文物的抗震性能。基于故宫博物院某展柜原型尺寸,制作了1:1比例陈列柜模型。在陈列柜内浮放一轻质陶瓷文物,分别考虑采用砂子、塑料卡、鱼线、橡皮泥及磁铁加固文物,进行了振动台试验。通过白噪声激励,获得了陈列柜基频分布;通过输入不同强度、不同类型的地震波,获得了不同方法加固条件下陈列柜和文物的位移响应、加速度响应和和动力放大系数,评价了不同方法的加固效果。结果表明:陈列柜的基频与输入地震波相差较大,这是陈列柜震害不明显的主要原因之一;传统方法加固文物后,输入地震波的加速度仍有一定放大,但是与加固前文物相比,文物的位移和加速度响应均有所减小,且文物因摇晃幅度而产生倾覆的可能性减小。此外,从减小文物加速度响应峰值角度考虑,橡皮泥和鱼线加固文物效果优于其它方法。试验结果可为文物防震保护研究提供较全面的参考。     

故宫太和殿动力特性与常遇地震响应

为更好地保护故宫太和殿,采用有限元分析方法,研究了太和殿的动力特性及常遇地震作用下的响应。采用弹簧单元模拟榫卯节点及斗拱构造,并考虑柱础为铰接,建立了太和殿有限元模型。通过模态分析,获得了太和殿基频及主振型;通过对模型进行时程分析,获得了典型节点的位移、加速度响应曲线,以及典型单元的内力响应曲线,评价了太和殿的抗震性能。结果表明:太和殿基频为0.9Hz,主振型以平动为主;常遇地震作用下,太和殿能保持稳定振动状态,结构的内力和变形均在容许范围内,且斗拱及榫卯节点均能发挥一定的减震作用。     

民宿与在地社区的互动与共生——基于扎根理论的多案例研究

民宿逐渐成为旅游吸引物本身,从单一住宿功能向集住宿、审美、度假、在地体验等多功能转化,其与在地社区的社会利益结构发生巨大变化。本研究基于四个典型民宿,对二者的互动及共生关系展开多案例研究。发现二者的四种互动模式：被动的社交式浅层互动、被动的参与式浅层互动、主动分享价值型深层互动、价值共创型深层互动。旅游小企业的投资动机在民宿行业表现为四种：生活方式保守型、生活方式进取型、私人商业型、联合商业型。在互动模式和民宿主投资动机的影响下,形成寄生、偏利共生、非对称性互惠共生、对称性互惠共生等四种由低到高的共生关系。提出二者构建共生关系的建议。     

主角与配角的悖谬——现代文学中俄侨主、配角形象管窥

俄侨是中国历史进程中存在的一个特殊群体，中国现代文学中存在着大量的俄侨形象。其中，现代作家们着意塑造和刻画的作为主角的俄侨形象，都无论如何不能逃脱痛苦悲惨的命运；而作为配角和背景出现的俄侨形象，则不但拥有幸福美好生活，甚至令中国人无比羡慕。探寻痛苦的主角与幸福的配角产生的原因，会发现在俄侨题材创作的背后隐藏着作家们对社会功利目的和自身心理平衡的寻求。     

张学良与东北易帜新释

历年来史学界对“东北易帜”评价不一。有人认为张学良东北易帜是形式上的,实质是东北地方保护主义;有人认为张学良进行东北易帜只是顺应了历史潮流,他是不得已而为之;还有人认为东北易帜对结束军阀混战,挫败日本企图策划分裂东北的阴谋,对维护祖国领土完整有着进步意义,应予以肯定;但也有人认为张学良东北易帜是打着反共口号,统一在国民党新军阀蒋介石手下的,不符合共产党的利益,不值得称颂。     

望京楼遗址出土青铜器研究

望京楼遗址是夏商时期重要邑聚,为了解该遗址铜器制作工艺水平,通过金相显微镜和扫描电镜对2010~2012年新郑望京楼遗址出土的青铜器样品进行组织与成分分析和探讨。该批铜器未见青铜容器,仅有小件工具和兵器。但仍可初步反映出望京楼遗址出土的青铜器材质多样化和加工方式非单一性;对望京楼铜器分析反映出该区域使用锻打应该有了一定积累并在此基础上能依据材质和器物薄厚、尺寸选择工艺,对锻打技术认知度较高。望京楼铜器具有的原始性,应属于铜合金使用的早期阶段。研究表明,商代对于器物成分与性能关系的认识程度比之前得到提高。器物是本地制作还是外来还需要更多材料证明。     

Charting the development of social and cultural geography in Mainland China: voices from the inside*

This article provides an overview of the recent development of social and cultural geography in China. It discusses six major bodies of work: cultural areas, cultural diffusion and cultural integration; geographies of ethnic cultures; cultural landscape and cultural economy; place and place-based cultural politics; marginal social groups; and geographies of social injustice. Although social and cultural geography is still located on the periphery of the disciplinary landscape of Chinese human geography, it is nonetheless developing into a noteworthy field of research. We start this review by calling attention to some problems in epistemologies and analytical approaches. Social and cultural geography in China often suffers from an analytical separation between environment and culture as ontologically enclosed entities. Also, it pays insufficient attention to the mutually constitutive relations between the social and the spatial. However, more recent studies have begun to engage with constructionist/poststructuralist approaches, and develop less positivist interpretations of space, social relations and cultural meanings. This review suggests that social and cultural geography in China needs to develop broader research scopes and strengthen theoretical frameworks. It concludes by calling for constructive dialogues between Chinese and Western human geographical scholarships.     

张瑞图与其陶诗书册

在中国书法史的发展长河中,张瑞图是一个十分重要的人物。他是一个难得一见的书法奇才,他作品中流露出来的那种纵横飞荡的激情和气势,那种率意挥毫的自如和洒脱,那种前无古人的崭新面貌,那种对观者视觉和心灵的强烈冲击和震撼,都无可争议地表明他在书法史上的特殊意义,使其成为晚明书坛上挑战传统、标新立异的开创者之一,与书坛巨擘董其昌并称＂南张北董＂,又与董其昌、邢侗、     

杜詩人物考補

杜甫交遊及杜詩所涉及之當代人物有數百人之多,舊時注家如黃鶴、錢謙益、朱鶴齡等搜求考校甚廣,近年陶敏、陳冠明等學者亦續有考證。本文就檢校所及,補充若干,條列如下。     

Understanding the Field of Public Affairs through the Lens of Ranked Ph.D. Programs in the United States

The goal of this article is to understand the multidisciplinary field of public affairs. Based on data and text mining on the profiles and publications of all faculty members from a list of research‐oriented U.S. public affairs programs, we describe the landscape of public affairs schools and scholars, identify 15 topics in public affairs research and discuss their trends of change between 1986 and 2015, and show the clustering and hiring networks of public affairs schools. Our results suggest a broader approach to understanding the field of public affairs than the public administration focus in the literature. Although public administration is highly visible in the field, which is evidenced by the journals most favored by public affair scholars, various specific policy areas (such as health, social, urban, environmental, global, and education policies) show strong representations based on our topical analysis of public affairs research.