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61.
Iron objects excavated from sites of the Xiongnu Empire (3rd century BC–2nd century AD) in Mongolia have been examined using optical and scanning electron microscopy. The results show that the Xiongnu iron tradition may be characterized by the use of low carbon iron and carbon control by carburization. Cast iron was also used in the Xiongnu Empire, but only in very limited applications and with no convincing evidence of its use for the production of low carbon iron. The Xiongnu iron technology seems to have been established on the basis of the bloomery technique, without much influence from the Chinese style of technology, based on cast iron. 相似文献
62.
A red-stained flint crescent found in the Pre-Pottery Neolithic A (ca. 9000 BC) site of Gesher, Israel, provides us with a unique opportunity to study the hafting technology of a particular tool type in the Levant. We present here a reconstruction, based on chemical and mineralogical analyses, of the hafting technologies and materials employed in the process. Use will also be made of relevant studies of the archaeological record. Local material was used for the production of an elastic adhesive paste, mud plaster, which was then hardened to hold the crescent securely in the haft. The study contributes insight into the hafting technology that was most probably implemented in the production and maintenance of composite tools during the Early Neolithic period. 相似文献
63.
64.
通过对出土实物的观察和做模拟实验的发现,笔者认为,商周青铜器的纹饰技术伴随其范铸分型技术的进步而不断发展,同时它也引起铭文技术随之变化。商周青铜器纹饰技术具体的发展脉络为:夏代青铜器制模、制范技术不规范,纹饰技术处于摸索阶段。商早期青铜器范铸分型技术已具成熟的工艺设计思想,在素范面压塑纹饰的"纹饰压塑技术"出现;商中期青铜器纹饰技术有了划时代的进步,出现了"纹饰堆塑技术",且与"纹饰压塑技术"兼容并用;商晚期青铜器纹饰技术达到顶峰。西周青铜器范铸分型技术无明显进步,纹饰制作技术显示退化趋势;春秋中期以后,青铜器范铸工艺分型增多,纹饰技术发生改革,发明了单元纹饰范拚兑技术。 相似文献
65.
日本经济的核心是日本企业以持续技术革新为基础的国际竞争力。日本企业之所以能持续进行技术革新是与日本政府的政策引导和支持分不开的。本文指出日本政府在国家总体目标之下,利用自身的信息优势和资源优势,根据时代的变迁,制定不同的产业技术政策,通过政策引导,使企业能够明确技术革新的方向,并通过对市场的增进为新技术提供需求,从而促进新兴产业的发展。 相似文献
66.
William Andrefsky Jr. 《Journal of Archaeological Research》2009,17(1):65-103
Researchers who analyze stone tools and their production debris have made significant progress in understanding the relationship
between stone tools and human organizational strategies. Stone tools are understood to be morphologically dynamic throughout
their use-lives; the ever-changing morphology of stone tools is intimately associated with the needs of tool users. It also
has become apparent to researchers that interpretations of lithic analysis are more productive when the unique contexts and
situations for which lithic artifacts were made, used, modified, and ultimately discarded are considered. This article reviews
the recent literature on stone tool production with an emphasis on raw material procurement, manufacturing techniques, and
tool maintenance processes as they relate to adaptive strategies of toolmakers and users. 相似文献
67.
David R. Braun Thomas Plummer Joseph V. Ferraro Peter Ditchfield Laura C. Bishop 《Journal of archaeological science》2009
The role of raw material quality in Oldowan technology has not been fully explored. There are numerous studies suggesting Oldowan hominins preferred certain types of stone for artifact manufacture. Previous studies of the artifact assemblage from the early Pliocene Oldowan locality of Kanjera South (South Rachuonyo District, Kenya) show that raw material selection and transport was an important aspect of Late Pliocene hominin adaptations. Yet the exact properties of stones that hominins were selecting remain enigmatic. Two potentially important features of artifact raw material are durability and fracture predictability. We investigate fracture predictability through mechanical tests of stone and investigations of the affect of stone properties on fracture patterns in archaeological collections. We investigate stone durability with actualistic studies of edge attrition combined with further mechanical tests of various lithologies. Oldowan hominins at Kanjera appear to have selected raw materials based on their durability. The ability for a stone to fracture consistently does not appear to be as important in hominin toolstone preference as previously assumed. Hominins that produced the assemblages at Kanjera South appear to have incorporated an extensive understanding of various attributes of raw material in the transport and production of stone artifacts. When combined with previous research on the transport patterns at Kanjera, the results of this study provide evidence for a more complex raw material acquisition strategy than has previously been suggested for Late Pliocene Oldowan hominins. 相似文献
68.
Marie-Hélène Moncel María Gema Chacón Aude Coudenneau Paul Fernandes 《Journal of archaeological science》2009
The lithic assemblage from the Middle Palaeolithic site of Payre (Rhone Valley, France) contains a large number of convergent tools and pointed tools of various shapes, sizes and retouch types. These were excavated from several archaeological units, dating from marine isotopic stages 8–5, which also yielded human skeletal remains. Consideration of this large tool kit has led to an improved analysis of Middle Palaeolithic tools with two retouched convergent edges. The 350 tools were not described within the classical typological framework, but, rather, from a lithic technological perspective in relation to a discoid debitage. In addition, an initial macroscopic use-wear analysis aided in establishing whether they were used according to their technical and/or morphological features. The Middle Palaeolithic convergent tools from Payre are shown to be quite diversified, and the question of the significance of the retouch and the definition of the various types is addressed. Initial functional results indicate that a clear relationship between shape and function cannot be easily established, and that these tools were used as hand tools. This study contributes to the debate on the use of stone tip spears in the Early European Middle Palaeolithic. 相似文献
69.
在人类各个技术发展阶段,技术与人的主体性之间互相消长,在数字博物馆建设中,文博工作容易出现傻瓜化倾向。为此,数字博物馆的建设应是文化创意的过程,在使用现代设备、系统、工作流程的同时,文博工作者要发挥自身的主体作用。 相似文献
70.