AN ECOLOGICAL SAFETY SHELTER ESTABLISHED ON THE SNOWY HIGHLAND

<正>On the snowy highland,the splendid view of mountains and waters vie with each other;the birds and beasts stroll idly as in a courtyard,and the flourishing woods and grasses stretch as far as the eyes can see.Is"Shambhala"a fairyland?Over the years,the central government and Tibet have focused on protecting the highland ecology and have attained impressive achievements.Under the blue sky     

Institutionalization,path dependence and the persistence of the Anglo‐American special relationship

One of the remarkable phenomena in post‐Cold War world politics is the persistence of the Anglo‐American special relationship (AASR) in spite of recurrent announcement of its death by pessimists. Current scholarship on Anglo‐American relations largely draws on interests and sentiments to explain the persistence of the AASR, ignoring other important contributing factors such as institutionalization. This article is the first to give serious consideration to the role of institutionalization in influencing the persistence of the AASR. By using the concept of path dependence, this article argues that the high‐level institutionalization in Anglo‐American intelligence, nuclear and military relations plays a seminal role in contributing to the persistence of the AASR in the post‐Cold War era. The institutionalized intelligence relationship is exemplified by the relationship between the UK's Government Communications Headquarters (GCHQ) and the US's National Security Agency (NSA), which is underpinned by the UKUSA Agreement. The institutionalized nuclear relationship is exemplified by a variety of Joint Working Groups (JOWOGs), which is underpinned by the 1958 Mutual Defence Agreement. The institutionalized military relationship is exemplified by routinized military personnel exchange programmes, regular joint training exercises and an extremely close defence trade partnership. The high‐level institutionalization embeds habits of cooperation, solidifies interdependence and consolidates mutual trust between the UK and the US in their cooperation on intelligence, nuclear and military issues.     

DEM Algorithm for Progressive Collapse Simulation of Single-Layer Reticulated Domes under Multi-Support Excitation

In this paper, the Member Discrete Element Method (MDEM) is modified and perfected for three aspects: the algorithm itself, loading and computational efficiency, and to accurately and quantitatively simulate the progressive collapse for large-span spatial steel structures. In addition, the corresponding computational programs are compiled. First, from the perspective of the method, a meshing principle for discrete element models is determined, a treatment for material nonlinearity and strain rate effect is proposed, and a damping model is established. Next, the Displacement Method is introduced to determine the multi-support excitation for the MDEM, and then motion equations of particles under multi-support excitation are derived. On this basis, the specific process of gravitational field loading is presented. Furthermore, parallel implementation strategies for the MDEM based on OpenMP are constructed. Finally, the collapse simulation of a 1/3.5-scaled single-layer reticulated dome shaking table test model under multi-support excitation is carried out. The comparison demonstrates that the ultimate load and failure mode as well as the complete collapse time of the numerical results are consistent with the experimentally measured responses, and the configuration variations from member buckling and local depression until collapse failure are fully captured. Moreover, the displacement time-history curves obtained using MDEM are almost identical to the experimental measurements, and there is a nuance only in the amplitude. It is verified that MDEM is capable of precisely addressing the collapse failure for large-span spatial steel structures. Additionally, the failure mechanism for structures of this type is naturally revealed.     

党、革命动员和地域社会:论中共河北党组织(1928～1934)

大革命失败后,河北区域的中共党员数量急剧下降。由于国民党势力的打压,党的发展重心不得不转移至农村,党员的社会构成也由以学生为主变为更加多样化;党的大多数支部有名无实,组织涣散,纪律松弛,经费短缺,上下级组织间信息传递迟缓。因此在白色恐怖下其生存境遇相当艰难,屡遭重创。另外中共在河北区域的革命工作遇到极大困难,其欲动员的工农群体,自身资源短缺亦是一重要因素。在基层,革命斗争往往异化,阶级革命经常与地缘亲缘多种因素相互缠绕。     

神话对唐诗的影响

唐诗中存在着大量取材于古代神话的诗作,这反映了神话对唐诗的显著影响,但这一文学现象很少为学界所关注。本文侧重于从美学角度探析唐诗对七类古代神话的运用。唐诗人不是歌咏原生态的古代神话,而是运用它们的象征意义抒情言志。唐诗大量取材古代神话的现象主要与唐代崇尚道教的社会环境及诗人的不幸的人生遭遇等有关。     

辽代琥珀来源的探讨

本文主要以中、西文献记载为依据,结合考古出土以及以往的研究成果,论证辽代的琥珀原材料很可能来自遥远的欧洲波罗的海沿岸.波罗的海琥珀由基辅罗斯北部诺夫哥罗德城,沿伏尔加河南下,到达地中海.再东经黑海、里海,达河中地区.然后经皮毛之路、丝绸之路进入辽境.     

劳动力市场竞争与分割的再认识

马克思在《资本论》中所论述的劳动力买卖、平均利润与生产价格,都是以完全竞争或自由竞争为前提条件的。但是,马克思指出,这是一种"理论上的假定"。这就存在着如何把马克思抽象化的理论运用于活生生的现实的问题。在现实生活中,劳动力市场既有竞争的一面,又有分割的一面,而且二者往往是交错在一起的。     

蚌埠双墩遗址“■”形刻划符号释义

主要介绍蚌埠双墩遗址出土的"■"形刻划符号,并通过对含有"■"形组合符号的分析,认为"■"形符号除了具有网具功能外,还与远古时期的天文历法有关。     

古典阿拉伯——伊斯兰舆地文献所记欧亚陆路交通

根据阿拉伯——伊斯兰舆地文献,结合汉籍文献记载,考辨了9—10世纪自地中海到中国的陆路交通路线。中亚到中国的道路起于呼罗珊的木鹿,中亚地区的布哈拉、撒马尔罕、扎敏、怛逻斯和碎叶是重要的交通枢纽,而花剌子模是中亚与东南欧及北欧贸易的中心及货物集散地。     

从引文分析看大陆华侨华人研究——基于CSSCI（1998-2005）的研究

以中国社会科学引文索引(CSSCI)为操作平台,以核心作者群的被引论著为样本,对样本篇数、篇次、作者、机构、地域分布、主题分布、年代分布等因素进行了引文分析和量化的描述,并从文献的角度对大陆华侨华人研究现状进行评估。结果表明:大陆华侨华人研究1993—2002年是高峰期,形成了以福建、北京、广东为主的核心作者群,高等院校仍是华侨华人研究的主要机构,研究主题以经济、社会、历史为主,学术论文的利用率不高,高水平的研究成果不多。华侨华人研究在学术界的整体影响力不大,某些不够科学和规范的引证态度和方法亟需改进。