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371.
程艺  刘慧  宋涛  张芳芳 《人文地理》2022,37(2):67-76
中亚地处欧亚大陆中心,是“一带一路”倡议建设的重要区域。本文基于GDELT新闻媒体数据库,构建了事件影响度和双边关系度,定量分析了中国与中亚国家之间的合作、冲突关系演变,采用时空热点分析识别了中国在中亚城市尺度的合作、冲突热点模式。结果表明:①中国与中亚国家的合作日趋紧密。“一带一路”倡议提出之后,中国与中亚国家的合作趋势显著上升,与哈萨克斯坦的合作关系最为紧密。②中国在中亚地区的合作区域集中在中亚国家首都、战略要地、重要能源基地等,在乌兹别克斯坦安集延地区和塔吉克斯坦哈特隆州形成集中连片的合作区域。冲突区域集中在中亚国家首都和战略要地,与合作区域在空间上高度重合,但影响力显著低于合作事件。③中国在中亚城市的影响力以合作关系占主导,冲突关系大于合作关系的城市主要分布在吉尔吉斯斯坦。64%的中亚城市为低合作—低冲突状态,中亚国家首都、阿拉木图、安集延属于显著的高合作—高冲突城市。④时间尺度上,中国与中亚地区的合作热点以持续型为主,冲突热点以振荡型为主,哈萨克斯坦纳伦市、阿特劳州为新增冲突热点,应引起重视。  相似文献   
372.
Zhen, Y.Y., Normore, L.S., Dent, L.M. & Percival, I.G., 11 July 2019. Middle Ordovician (Darriwilian) conodonts from the Goldwyer Formation of the Canning Basin, Western Australia. Alcheringa 44, 25–55. ISSN 0311-5518

Middle Ordovician conodonts attributed to 46 species were recovered from a stratigraphic interval spanning the Willara, Goldwyer and Nita formations in core sections from the Sally May-2 and Theia-1 petroleum exploration wells in the Canning Basin, Western Australia. The Histiodella serrata, Histiodella holodentata and Eoplacognathus pseudoplanus biozones are recognized in the lower and middle part of the Goldwyer Formation, indicative of an early–middle Darriwilian age. This revised conodont biostratigraphy enables more precise correlation with North America and North and South China. Several biogeographically distinctive conodont species, most likely of North Chinese origin, are recorded from the Goldwyer Formation. Their presence signals a strong palaeobiogeographic connection between the Sino-Korean Craton and the Canning Basin on the western margin of eastern Gondwana during the late Middle Ordovician.

Y.Y. Zhen* [], W.B. Clarke Geoscience Centre, Geological Survey of New South Wales, 947–953 Londonderry Road, Londonderry NSW 2753, Australia; L.S. Normore []; L.M. Dent [], Department of Mines, Industry Regulation and Safety, Mineral House, Geological Survey of Western Australia, 100 Plain Street, East Perth, WA 6004, Australia; I.G. Percival [], W.B. Clarke Geoscience Centre, Geological Survey of New South Wales, 947–953 Londonderry Road, Londonderry NSW 2753, Australia;  相似文献   
373.
从四川南部泸县南宋石室墓中发掘清理出的人物浮雕石刻上能找到大量结饰造型。其中仕女石刻与武士石刻上的结雕刻最为精细,最具特色。这些结饰在造型上、数量上、位置上的不同安排,塑造出石刻人物的不同风貌,真实而生动地展现了结饰在南宋时期的特独风貌,更为南宋时期中国结饰形态的研究提供了翔实的资料。  相似文献   
374.
A paleo-parasitological study was performed on soil samples from archaeological sites in the old district of Seoul Metropolitan City (Old Seoul City) where the capital of the Joseon Kingdom was constructed about 600 years ago. The sampling sites were the original locations of the Royal Palace Wall, Yukjo Street and the Royal Arsenal. Microscopic examinations showed that parasite eggs of Clonorchis sinensis, Diphyllobothrium latum, Ascaris sp. and Trichuris sp. remained in the soil strata, which were estimated to represent the 14th-19th centuries. We suspect that the medieval citizens of Old Seoul City, numbering around 200,000, might have been made vulnerable to parasite infection by a combination of bad hygiene, inadequate sewer system and seasonal flooding.  相似文献   
375.
古籍文章节选表达了编选者对文义的理解,也在一定程度上表明了作者选文的目的.王力主编<古代汉语>校订重排本的文选中,有些节录依旧需要商榷:因误解古书而删节,不顾文理而删节,有意模糊主旨而删节.这些问题在各类文选中带有普遍性,需要引起重视.  相似文献   
376.
ABSTRACT

A curious aspect of the First Opium War was the circulation among Chinese officials of two claims made about British soldiers, instigated by Commissioner Lin Zexu: their uniforms were so tight that if they were to stumble they would not be able to get up again; and, the men were “like fish,” thus able to function well at sea, but not to fight on land because they had become so used to the pitching and rolling of their ships. This article examines the extent to which these notions took on the quality of wartime rumors, and how they spread beyond generals and officials and into the general population. It considers the way in which the rumors functioned in different ways and at different levels of society, taking on different constructions of meaning in multiple social and political domains.  相似文献   
377.
Forty-two conodont species are documented from the Liuxia, Shijiatou and Jingshan formations in Zhejiang Province of southeast China, located palaeogeographically on the Jiangnan Slope offshore to the Yangtze Platform. From these faunas, eight successive conodont biozones of Tremadocian to middle Floian (Early Ordovician) age are recognized, including the Cordylodus lindstromi Biozone, Cordylodus angulatus Biozone, Chosonodina herfurthi Biozone, Paltodus deltifer Biozone, Paroistodus proteus Biozone, Triangulodus bifidus Biozone, Serratognathus diversus Biozone and Prioniodus elegans Biozone. Several zonal index species of the Baltoscandian succession—Paltodus deltifer, Paroistodus proteus and Prioniodus elegans—are described and illustrated in detail for the first time from South China. Co-occurrence of P. proteus and Serratognathus bilobatus in several samples below the appearance of P. elegans also confirms correlation of the S. diversus Biozone (basal Floian) with the upper P. proteus Zone of the Baltoscandian succession. These Zhejiang faunas are dominated by pandemic forms, and are similar to those of the Open-Sea Realm elsewhere, inhabiting deep, offshore environments.  相似文献   
378.
379.
This paper examines the hydraulic properties (i.e. velocity and discharge) of the main late prehistoric canals of the Moche Valley. Velocities, estimated from excavated canal sections using the Manning flow equation, are compared to tables of maximum permissible velocities and reveal that canals were constructed to transport water efficiently, but that on gradients steeper than 1:100 the Chimu and Inca engineers were unable to transport large discharges without severe erosional problems. Discharge estimates are compared with modern field requirements, using a known ethnographic watering cycle. This demonstrates that in almost every instance the channel size was of the same order of magnitude as that predicted from the requirements. The construction of the Inter-valley canal to bring water to the state lands in Moche was a technological disaster.  相似文献   
380.
为了缓解龙门石窟金刚经洞因局部坍塌引起的水害、微生物等病害发育问题,利用3D打印技术对坍塌部位进行修复:修复部件以光敏树脂为打印材料,修复部件为空心结构以减轻荷载;对修复部件进行光场、温度场仿真设计,使洞窟内日光辐射强度降低至日光直射的50%~56%,窟内温度分布差值由6.6℃降低到1.9℃;修复部件采用S8801涂覆内外表面,S8801老化实验后主要性能保持率均大于90%,并采用玄武岩纤维与玻璃纤维增强修复部件内表面。经多次降雨后观察,龙门石窟金刚经洞由缺失导致的雨水倒勾等问题得到有效缓解。该工作为3D打印技术与不可移动石质文物修复工作结合奠定基础。  相似文献   
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