全文获取类型
收费全文 | 2528篇 |
免费 | 123篇 |
出版年
2020年 | 47篇 |
2019年 | 58篇 |
2018年 | 78篇 |
2017年 | 79篇 |
2016年 | 102篇 |
2015年 | 71篇 |
2014年 | 76篇 |
2013年 | 640篇 |
2012年 | 89篇 |
2011年 | 86篇 |
2010年 | 75篇 |
2009年 | 69篇 |
2008年 | 57篇 |
2007年 | 48篇 |
2006年 | 52篇 |
2005年 | 35篇 |
2004年 | 24篇 |
2003年 | 26篇 |
2002年 | 41篇 |
2001年 | 41篇 |
2000年 | 28篇 |
1999年 | 36篇 |
1998年 | 24篇 |
1997年 | 30篇 |
1996年 | 28篇 |
1995年 | 31篇 |
1994年 | 25篇 |
1993年 | 30篇 |
1992年 | 26篇 |
1991年 | 23篇 |
1990年 | 12篇 |
1989年 | 19篇 |
1988年 | 19篇 |
1987年 | 25篇 |
1986年 | 20篇 |
1985年 | 23篇 |
1984年 | 33篇 |
1983年 | 27篇 |
1982年 | 31篇 |
1981年 | 22篇 |
1980年 | 34篇 |
1979年 | 26篇 |
1978年 | 21篇 |
1977年 | 21篇 |
1976年 | 21篇 |
1975年 | 16篇 |
1973年 | 16篇 |
1972年 | 19篇 |
1971年 | 16篇 |
1967年 | 17篇 |
排序方式: 共有2651条查询结果,搜索用时 15 毫秒
101.
The 4th century wreck at Yassi Ada An interim report on the hull 总被引:1,自引:0,他引:1
102.
Assessing Surface Correspondence and Trade of Maya Figurines and Moulds Using Multi‐Stripe Laser Technology and Metrology*
下载免费PDF全文
![点击此处可从《Archaeometry》网站下载免费的PDF全文](/ch/ext_images/free.gif)
One of the most intriguing questions for archaeologists studying clay artefacts concerns technologies employed in their manufacture and whether standardization can be demonstrated through traditional ceramic analysis. Visual comparisons and mechanical measurements have been used to determine correlations and infer standardization. Using a laser multi‐line scanner and software developed to quantify Hausdorff distances between vertices in 3D surfaces, we analysed sample collections of figurines and moulds from Belize, Mexico and Honduras. The results indicated that this procedure was a more precise indicator of common source and standardization in moulded clay artefacts. This method provided data relevant to assessing the scope of ancient trade networks and the nature of social and economic relationships that existed among the ancient inhabitants of Mesoamerica. 相似文献
103.
Investigating Human Migration and Horse‐Trading in Yelang (夜郎) Through Strontium Isotope Analysis of Skeletons from Zhougshui Sites,South‐West China (1300 bc – ad 25)
下载免费PDF全文
![点击此处可从《Archaeometry》网站下载免费的PDF全文](/ch/ext_images/free.gif)
Yelang (夜郎), a mysterious state located in the south‐western area of early China and dating from the Bronze Age to the Early Iron Age (1300 bc – ad 25), is a cultural interactive junction between the Yunnan–Guizhou Plateau and the Yangtze River Basin. The Zhongshui Basin in Weining County, Guizhou Province, was one of the important distribution areas of the Yelang civilization. This area, which includes sites at Jigongshan (鸡公山; 1300 – 800 bc ), Hongyingpan (红营盘; 700 – 400 bc ) and Yinzitan (银子坛; 400 bc – ad 25), has provided a very integrated chronology, spanning from the Bronze Age to the Early Iron Age in the eastern Yunnan – western Guizhou area. To investigate human migration and horse‐trading at these Yelang sites, we conducted a strontium isotopic analysis on the teeth enamel of humans and horses unearthed from these three sites. The results indicated the following: (1) people at the earlier sites (Jigongshan and Hongyingpan) were all indigenous, whereas in the Yinzitan cemetery, there was a more immigrant population, and all the people who were buried in an upper limb flexed supine position were non‐local; and (2) most of the horses found at the Jigongshan and Yinzitan sites show different provenances, probably related to the famous Dian (滇) and Zuo (筰) horses recorded in historical documents, providing more clues for further study on horse‐trading in South‐West China during the Bronze Age and the Early Iron Age. 相似文献
104.
An Approach to the Diagnosis of Craniofacial Fibrous Dysplasia from the 2500‐Year‐Old Remains of a Skull from Ancient China
下载免费PDF全文
![点击此处可从《Archaeometry》网站下载免费的PDF全文](/ch/ext_images/free.gif)
K. L. Cheng H. Shao D. Zhao B. T. Sun J. Yu Z. C. Sun M. C. Li L. Guo H. Zhu Q. C. Zhang Y. H. Huang 《Archaeometry》2018,60(1):171-182
A human skull, buried about 2500 years ago in a Bronze Age cemetery at Jinggouzi, a site of an important ethnic group in ancient China, appeared to have characteristics of fibrous dysplasia. The CT images indicated a reduction in bone density and relatively homogeneous lesions. More features were revealed using CT reconstruction techniques. Lesions seen in low‐magnification images using a 3D deep‐field microscope had an irregular honeycomb‐like structure. At higher magnification, the trabeculae morphology and the gaps between the trabeculae were irregular and varied in size and shape. Paraffin‐embedded specimens stained with HE showed trabeculae with tortuous irregular arrangements varying in shape and width. The irregular trabeculae of woven bone has been described as having fibrous dysplasia. Molecular analysis of the GNAS gene indicated no mutation. This provides a non‐invasive approach for us to make more comprehensive diagnoses and to assist research into ancient human diseases. 相似文献
105.
Alan T. Murray 《Geographical analysis》2018,50(3):207-222
Among the wide range of geographic analysis methods are service coverage models. These location analytic approaches have been invaluable for better understanding existing (and past) conditions, deriving creative plans, and developing policy for addressing associated societal problems. Increasingly sophisticated spatial information and better knowledge about interrelated mechanisms of process and behavior have made it possible to enhance coverage models, enabling more nuanced formalizations to be devised. This has proven both important and essential in many ways. Mathematical details associated with service coverage models are derived to highlight evolving capabilities. Empirical results are presented in order to illustrate the significance and substantive importance of advanced location analytics capabilities. 相似文献
106.
107.
This study takes a valuation perspective to study how and where products and innovations are gaining ‘economic significance’ in the contemporary economy. Building on a recent research stream in economic geography and urban and regional studies, it highlights that the economic value of many products is not formed within production systems alone, but relies on co-constructed connections between production and consumption systems, playing out across multiple geographies. It distinguishes between three types of economic valuation pathways – namely technical, experiential and identity-based – which although analytically distinct may actually build and reinforce one another. This approach is empirically illustrated with the case of the surf-related economy in the city of San Sebastian (Basque Country, Spain), which is used to make a broader point about the growing relevance of a valuation approach to understand competitive advantage and economic renewal in localized production systems. 相似文献
108.
As in other European countries, the formal planning task of Dutch governments is subjected to devolution and austerity measures. Not only did these developments lead to outsourcing planning tasks to lower-level governments, also citizens are increasingly ‘invited’ to take responsibility for providing public facilities and services. In De Achterhoek, a Dutch region, these shifts are amplified due to population change and traditional active citizenship, and led to institutional change. Since a decade local governments stimulate citizen initiatives, under the umbrella of participatory governance. This process of institutional change did not alter formal institutions, but was the result of an informal and dialectic process between local governments and citizen organizations. In this paper, we will demonstrate the process of change and how it affected planning practices in De Achterhoek, building on theories of informal institutional change and its driving forces. The empirical part of this paper draws on the results of three focus group meetings, in which a diverse set of local stakeholders discussed the effects of change they observed and how it shaped planning practices. In the final section, we reflect on the degree of institutionalization, by examining the robustness and resilience of the observed change. 相似文献
109.
Border regions are not often associated with innovation and economic prosperity. And even when they are prosperous, cross-border interaction is still mostly limited. The opening up of borders in Europe has presented new opportunities for firms located in these border regions to co-operate for innovation and knowledge to flow across borders. Despite the reduction of the importance of borders, firms seeking to access cross-border knowledge resources need still to ‘cross’ the border and address the various effects it brings. This paper therefore asks the question of how the presence of a border affects the processes by which firms attempt to build up productive co-operations for innovation. We use a heuristic of collaborative innovation across borders as building up through four sequential cooperation stages, and each of these different stages is susceptible to different kinds of border effects. Using a case study of firms co-operating across the Dutch-Flemish border, we empirically explore these border crossing processes in order to shed further light on how border processes play out. 相似文献
110.
Henk M. van der Velde Johanna A. A. Bos Gert L. Kortekaas Frieda S. Zuidhoff 《Environmental Archaeology》2018,23(4):389-402
ABSTRACTThis paper will examine settlement location during the Iron Age in the northeast part of the Netherlands, an area shaped by Pleistocene geology. In recent years, a number of Late Iron Age/Early Roman settlements situated on the low lying slopes of sand ridges and nearby stream ridges revealed traces of an earlier Iron Age occupation. Palynological data revealed that this part of the landscape was used by humans before it was transformed into an area of settlement. An analysis of excavation data from two key sites at Denekamp-De Borchert and Groningen-Helpermaar, as well as other known sites, lead to the conclusion that the transformation of ‘peripheral landscapes’ into permanent settlement locations was preceded by a phase of arable cultivation which left no trace of permanent habitation. It is also suggested that the impact of human behaviour on the natural landscape in the Early and Middle Iron Age was much bigger than previously anticipated. When excavating this type of settlement areas dating to the Late Iron Age, archaeologists must be aware that only of a small group of archaeological features exist. The proposed model for the choice of settlement location may be more widespread, because of similarities in landscape between the study area presented here and other landscapes in Northwest-Europe (e.g. parts of Germany and Denmark). 相似文献