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1.
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。  相似文献   
2.
ABSTRACT

This essay considers how maps became implicated in historical inquiry, with particular reference to the city of Paris. Three interrelated episodes are discussed, from the early eighteenth century to the mid-nineteenth century, each associated with specific mapmakers and collectors whose activities shaped the early development of map history. These episodes reveal how maps were historicized in different ways in this period, initially as images created in the present to reveal the past and eventually as objects of historical interest in their own right. It is further argued that this intellectual shift was associated with a growing awareness, especially among state officials, that the study and collection of historic maps had important geopolitical implications. In tracing this story across three episodes in a single urban setting, the essay seeks to make larger observations about the relationship between the map as a visual representation, the map collection as an urban ‘assemblage’ of geographical information, and the city as a physical environment.  相似文献   
3.
采用光学显微观察、激光拉曼、紫外-可见吸收光谱以及高效液相色谱对河北隆化鸽子洞蓝棉袄蓝色、浅蓝色纤维以及百衲枕顶蓝色纤维进行分析研究.通过多种分析手段相互佐证表明,该组样品采用蓝草中的靛蓝染色,色素成分有靛蓝素和靛玉红.各样品中色素成分比例均不相同,推测至少在元代,人类已经能够有意识地调整制靛工艺,染出自己需要的色光.同时靛蓝染料耐光性耐热性差,对酸、碱和氧化均敏感,耐盐性及耐细菌性较弱.在以靛蓝染色的织物清洗中,要选择性地使用洗涤剂,进行点滴试验后才可使用,同时在存放过程中要做到避光、避免高温.  相似文献   
4.
5.
丝绸的老化及保护剂的筛选   总被引:3,自引:0,他引:3  
讨论了光和热对丝绸老化的影响。结果表明,光比热对丝绸之染料的影响大得多;随着辐照时间的增加,丝纤维强度降低曲线呈典型的动力学反应特征。通过抗张强度、白度等测试,对保护剂进行了筛选。  相似文献   
6.
An analysis of energy use by Neanderthals in Northern Europe during the mild Eem interglacial period is carried out with consideration of the metabolic energy production required for compensating energy losses during sleep, at daily settlement activities and during hunting expeditions, including transport of food from slain animals back to the settlement. Additional energy sources for heat, security and cooking are derived from fireplaces in the open or within shelters such as caves or huts. The analysis leads to insights not available from archaeological findings that are mostly limited to durable items such as those made of stone: Even during the benign Eem period, Neanderthals faced a considerable heat-loss problem. Wearing tailored clothes or some similar measure was necessary for survival. An animal skin across the shoulder would not have sufficed to survive even average cold winter temperatures and body cooling by convection caused by wind. Clothes and particularly footwear had to be sewn together tightly in order to prevent intrusion of water or snow. The analysis of hunting activity evolvement in real time further shows that during summer warmth, transport of meat back to the base settlement would not be possible without some technique to avoid that the meat rots. The only likely technique is meat drying at the killing site, which indicates further skills in Neanderthal societies that have not been identified by other routes of investigation.  相似文献   
7.
对唐代贾耽的地理(地图)著述的名目进行辨析,分析了"关中陇右及山南九州等图"、《九州图》、《海内华夷图》之间的关系,以及别录与通录的区别。指出《九州图》、《海内华夷图》是贾耽国图撰修总体事业在不同历史阶段的总称。并从地图学传统、方志学传统入手,探讨了贾耽地理(地图)著述的性质,对其中的地图学成绩进行了重新评价,进而从"近意就实,依稀像真"分析了贾耽地图学的滞后性,指出"古墨今朱"应只是文字注记的区别,并非通过图形绘制表达古今地理要素的差异,由此审视了中国古代地图史上图形绘制与文字注记的关系。  相似文献   
8.
Stable isotope analysis of charred archaeobotanical cereal grains has the potential to provide direct evidence of crop growing conditions in the past and to refine palaeodietary predictions. If isotope values of archaeobotanical material are to be considered robust, it is necessary to characterise the compositional changes associated with their charring and burial. This study used a suite of analytical techniques, including FT-IR and solid state 13C NMR, to characterise changes in the biochemical composition of modern einkorn grains with heating at 230 °C for 2 h, 4 h, 8 h and 24 h, encompassing conditions that replicate their undistorted ancient counterparts. The biochemical composition of archaeobotanical charred einkorn grains was also investigated by FT-IR and solid state 13C NMR in order to assess the changes in composition which occur during burial. Results of FT-IR and solid-state 13C NMR show that heating of modern einkorn grains resulted in Maillard reactions between cereal proteins and starch, forming high molecular weight melanoidins, which contain both alkyl and aromatic carbon. Loss of low molecular weight carbon and nitrogen-containing volatiles resulted in a slight but non-systematic increase in the δ13C values and a systematic increase of 0.8‰ in the δ15N values of the charred einkorn grains. Solid-state 13C NMR shows that the ancient charred einkorn grains consisted entirely of aromatic carbon and retained a similar proportion of nitrogen to their modern 24 h charred counterparts, despite a significantly lower concentration of amino acids. This indicates that the amino acid nitrogen in the ancient charred grains was retained in the stable melanoidins whose polymeric structure makes them resistant to subsequent degradation.  相似文献   
9.
ABSTRACT

The 1:1 million Map of Hispanic America, compiled at the American Geographical Society's New York headquarters between the First and Second World Wars, has been seen as a landmark in twentieth-century cartography. In this essay we re-evaluate the Hispanic Map as a technical and scholarly project and re-assess its wider significance for the history of twentieth-century topographic mapping in the light of the cultural and political factors that shaped its development. When finally completed in 1945, the Hispanic Map was rightly judged an unsurpassed scientific achievement and a major work of art. But it was already out of date, superseded by newer cartographic technologies, particularly aerial survey and reconnaissance, that had removed the need for the kind of meticulous and painstaking compilation that the Hispanic Map exemplified.  相似文献   
10.
天水放马滩1号秦墓出土的年代为战国时期的木板地图,可以提供重要的历史文化信息,对于中国古代地图史、测量学史和地理学研究的进步各有重要意义,从中我们也可以发现反映生态环境面貌的内容。放马滩地图突出显示"材"及其"大"中"小"以及是否已"刊"等,都应理解为林业史料。有关秦人先祖"养育草木"的历史记忆,说明林业在秦早期经济形式中也曾经具有相当重要的地位。关于某种"材"运程若干"里",以及如何"道最"等与运输方式有关的信息,乃至"闭"的设置等,均体现林区交通开发的记录和导引的图示。  相似文献   
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