全文获取类型
收费全文 | 2839篇 |
免费 | 124篇 |
出版年
2020年 | 36篇 |
2019年 | 42篇 |
2018年 | 74篇 |
2017年 | 76篇 |
2016年 | 73篇 |
2015年 | 48篇 |
2014年 | 60篇 |
2013年 | 994篇 |
2012年 | 74篇 |
2011年 | 71篇 |
2010年 | 67篇 |
2009年 | 64篇 |
2008年 | 60篇 |
2007年 | 52篇 |
2006年 | 52篇 |
2005年 | 29篇 |
2004年 | 46篇 |
2003年 | 43篇 |
2002年 | 27篇 |
2001年 | 27篇 |
2000年 | 24篇 |
1999年 | 25篇 |
1998年 | 21篇 |
1997年 | 22篇 |
1995年 | 25篇 |
1994年 | 27篇 |
1993年 | 20篇 |
1992年 | 23篇 |
1990年 | 20篇 |
1989年 | 24篇 |
1988年 | 19篇 |
1987年 | 23篇 |
1986年 | 24篇 |
1985年 | 27篇 |
1984年 | 31篇 |
1983年 | 35篇 |
1982年 | 24篇 |
1981年 | 27篇 |
1980年 | 29篇 |
1979年 | 32篇 |
1978年 | 32篇 |
1977年 | 29篇 |
1976年 | 25篇 |
1975年 | 28篇 |
1974年 | 19篇 |
1973年 | 28篇 |
1972年 | 19篇 |
1971年 | 23篇 |
1970年 | 18篇 |
1969年 | 28篇 |
排序方式: 共有2963条查询结果,搜索用时 15 毫秒
101.
John F. Betak 《Geographical analysis》1975,7(1):1-17
It is proposed that two-dimensional displays, such as maps, aerial photographs, polygons, etc., may be generated and/or described by two-dimensional languages. A simple perceptual device is posited which utilizes such a language. The device is comprised of at least two components which represent short-term and long-term memory. It is clear that its conceputal locus is in multisystem memory models. Three such models are characterized which provide the necessary and sufficient conditions for the perceptual model posited. Given this conceptual frame, three illustrative sets of implications and experiments for human responses to two-dimensional displays are suggested. 相似文献
102.
103.
104.
Willem A. Bijlefeld Issa J. Boullata Issa J. Boullata Issa J. Boullata Issa J. Boullata R. Marston Speight Eric F. F. Bishop George M. Haddad Ludwig W. Adamec 《Muslim world (Hartford, Conn.)》1976,66(1):58-71
Book Reviews in This Article:
Der Koran. Ed. by Rudi Paret.
Introduction to Classical Arabic Literature. By Ilse Lichtenstadter.
On the Art of Medieval Arabic Literature. By Andras Hamori.
Four Egyptian Literary Critics. By David Semah.
Hispano-Arabic Strophlc Poetry. Studies by Samuel Miklos Stern.
The Hamadsha: A Study in Moroccan Ethnopsychiatry. By Vincent Crapanzano.
Publish it not… The Middle East Cover-up. By Christopher Mayhew and Michael Adams.
From Ottomanism to Arabism: Essays on the Origins of Arab Nationalism. By C. Ernest Dawn.
An Inquiry into the Ethnography of Afghanistan. By Henry W. Bellew. 相似文献
Der Koran. Ed. by Rudi Paret.
Introduction to Classical Arabic Literature. By Ilse Lichtenstadter.
On the Art of Medieval Arabic Literature. By Andras Hamori.
Four Egyptian Literary Critics. By David Semah.
Hispano-Arabic Strophlc Poetry. Studies by Samuel Miklos Stern.
The Hamadsha: A Study in Moroccan Ethnopsychiatry. By Vincent Crapanzano.
Publish it not… The Middle East Cover-up. By Christopher Mayhew and Michael Adams.
From Ottomanism to Arabism: Essays on the Origins of Arab Nationalism. By C. Ernest Dawn.
An Inquiry into the Ethnography of Afghanistan. By Henry W. Bellew. 相似文献
105.
106.
107.
108.
109.
110.
The Chemical Composition and Production Area of Early Western Zhou Proto‐Porcelain Unearthed from Yejiashan Cemetery,Suizhou, 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)
The bodies and glazes of 27 early Western Zhou proto‐porcelain samples from Yejiashan cemetery, Hubei Province, were analysed using LA‐ICP–AES, SEM, XRD, a thermal expansion instrument and other analytical methods. The results indicated that the bodies of all samples were characterized by high silicon and low aluminium, and were made with porcelain stone raw materials found in the south of China. The glazes are typical of high‐temperature calcium glazes of the CaO (MgO) – K2O (Na2O) – Al2O3 – SiO2 series, with relatively high Mn and P content, which was probably caused by the addition of plant ashes. The physical properties and phase compositions of Yejiashan proto‐porcelain show that firing processes were still in the early stages of development in ancient China. Multivariate statistical analyses indicated that Yejiashan proto‐porcelain might have come from the Deqing area, in Zhejiang Province. These results provide new archaeological evidence for research on issues related to material flow in the Western Zhou dynasty. 相似文献