明清丝绸之路哈密—吐鲁番段“沙尔湖路”研究

明清丝绸之路哈密—吐鲁番段存在一条自哈密西南沙尔湖转西北至鄯善进而抵达吐鲁番的“沙尔湖路”,它与“黑风川道”“小南路”等传统路线均不同。利用《蒙古山水地图》等文献,可对沙尔湖路具体行经进行考证复原。该路沿线地形平坦,有泉水与植被,在明廷与吐鲁番、清廷与准噶尔在哈密的政治和军事对峙阶段曾广泛使用,后因泉湖干涸、气候炎热而中断。     

"南海Ⅰ号"南宋沉船出水瓷器阿拉伯文墨书题记考释

南宋沉船"南海Ⅰ号"出水了大量带有墨书的瓷器,其中有7件为阿拉伯语题写,内容主要为所有者姓名及真主赞词.同时,根据其他船载文物以及动物遗存所反映出来的阿拉伯、伊斯兰特性,综合表明船上活跃着一个阿拉伯人群体.此外,通过对墨书上的阿拉伯文姓名传统以及赞词的书体及语法规范进行分析,初步可以认为船上阿拉伯人可能与埃及阿尤布王朝存在着较为紧密的联系.研究还发现,该阿拉伯人群体应为泛海客商而非船员,同时又可再细分为居于船艏、艉楼的两小群体,其中前者的生活环境优于后者,显示出船上人群的财富等级差异.以上发现,对研究"南海Ⅰ号"的终点港、宋代的远洋贸易路线以及中埃之间的交往关系,具有重要参考价值.     

A High-Performance Quadrilateral Flat Shell Element for Seismic Collapse Simulation of Tall Buildings and Its Implementation in OpenSees

Shear walls are important lateral force-resistant components of tall buildings. Hence, a reliable numerical model that can accurately represent the mechanical characteristics and large deformations of shear walls is critical for realistic collapse simulation of tall buildings. Based on the theory of generalized conforming element, a high-performance quadrilateral flat shell element, NLDKGQ, accounting for the large deformation using the updated Lagrangian formulation, is proposed herein and implemented in OpenSees. The reliability of NLDKGQ is validated using classical benchmark problems and reinforced concrete specimens. In addition, its capability in simulating the collapse of a tall building is also demonstrated.     

A slender new archaic beetle in Burmese amber (Coleoptera: Archostemata)

Jarzembowski, Edmund A., Wang, B. &; Zheng, D., October 2017. A slender new archaic beetle in Burmese amber (Coleoptera: Archostemata). Alcheringa 42, 110–114. ISSN 0311-5518.

A new archostematan beetle, Clessidromma palmeri gen. et sp. nov. (Insecta: Coleoptera) is described from mid-Cretaceous Burmese amber from northern Myanmar. It has a uniquely specialized body form for which a new stem tribe, Clessidromatini trib. nov., is proposed in the subfamily Ommatinae of the family Cupedidae sensu lato.

Edmund Jarzembowski* [jarzembowski2@live.co.uk] Bo Wang? [bowang@nigpas.ac.cn] and Daran Zheng? [darzheng@connect.hku.hk] State Key Laboratory of Palaeobiology and Stratigraphy, Nanjing Institute of Geology and Palaeontology, Chinese Academy of Sciences, 39 East Beijing Rd, Nanjing 210008, PR China. *Also affiliated with: Department of Earth Sciences, The Natural History Museum, London SW7 5BD, UK. ?Also affiliated with: Key Laboratory of Zoological Systematics and Evolution, Institute of Zoology, Chinese Academy of Science, Beijing 100101, PR China. ?Also affiliated with: Daran Zheng, Department of Earth Sciences, The University of Hong Kong, Hong Kong Special Administrative Region, PR China.     

世界城市网络研究的热点变迁及主题判别——基于WOS数据库的知识图谱分析

借助可视化软件,从梳理研究热点及识别研究主题两方面,厘清世界城市网络的研究脉络与核心,探索未来研究动向。研究发现：①世界城市网络研究国际合作广泛,研究热点响应迅速,经历“世界城市”与“世界体系”分化阶段,网络结构聚焦阶段,城市网络的空间、地位、经济等多元阶段变迁;②研究由城市网络链接结构、全球中心城市、城市网络节点地位及城市网络经济学四大主题构成;③以往研究缺乏对网络结构绩效的研究,对非世界城市的关注不够,城市地位与经济之间的关系仍处于描述阶段;④对世界城市网络结构的内涵、非世界城市研究、整体网络与个体网络关系、经济学方向进行展望,使世界城市网络的未来研究更加全面丰富。     

早期蜀文化和汉水上游地区青铜文化的关系

早期蜀文化分布在成都平原为中心的四川盆地西部地区,包括了三星堆文化和十二桥文化两个阶段,年代相当于商代、西周、春秋。这是相对晚期蜀文化而言,晚期蜀文化指相当于战国、秦至西汉初年。     

《九店楚简》释文注释校补

本文借助于最新的红外线照片,对九店楚简中几个字的释读提出了新的认识;同时通过对藏简的重新整理,新发现了为《九店楚简》一书漏收的两枚竹简。