全文获取类型
收费全文 | 630篇 |
免费 | 34篇 |
专业分类
各国政治 | 58篇 |
工人农民 | 40篇 |
世界政治 | 105篇 |
外交国际关系 | 49篇 |
法律 | 245篇 |
中国政治 | 14篇 |
政治理论 | 152篇 |
综合类 | 1篇 |
出版年
2023年 | 8篇 |
2022年 | 5篇 |
2021年 | 8篇 |
2020年 | 16篇 |
2019年 | 24篇 |
2018年 | 27篇 |
2017年 | 31篇 |
2016年 | 34篇 |
2015年 | 14篇 |
2014年 | 19篇 |
2013年 | 135篇 |
2012年 | 16篇 |
2011年 | 21篇 |
2010年 | 22篇 |
2009年 | 19篇 |
2008年 | 19篇 |
2007年 | 22篇 |
2006年 | 19篇 |
2005年 | 26篇 |
2004年 | 15篇 |
2003年 | 19篇 |
2002年 | 23篇 |
2001年 | 10篇 |
2000年 | 12篇 |
1999年 | 5篇 |
1998年 | 12篇 |
1997年 | 5篇 |
1996年 | 7篇 |
1995年 | 5篇 |
1994年 | 6篇 |
1993年 | 2篇 |
1992年 | 4篇 |
1991年 | 9篇 |
1990年 | 4篇 |
1989年 | 6篇 |
1988年 | 2篇 |
1987年 | 2篇 |
1985年 | 4篇 |
1984年 | 4篇 |
1983年 | 5篇 |
1982年 | 2篇 |
1981年 | 3篇 |
1980年 | 2篇 |
1979年 | 2篇 |
1978年 | 2篇 |
1976年 | 1篇 |
1975年 | 3篇 |
1974年 | 1篇 |
1973年 | 1篇 |
1964年 | 1篇 |
排序方式: 共有664条查询结果,搜索用时 15 毫秒
41.
The use of a new technique, Fourier transform infrared (FTIR) chemical imaging, has been demonstrated for the enhancement of latent fingermarks on a number of surfaces. Images of untreated fingermarks on glass backgrounds with excellent ridge detail were acquired using infrared chemical imaging. High quality fingermarks on glass backgrounds were also developed using ethyl cyanoacrylate (super glue) fuming and subsequent infrared chemical imaging. This new method allows the collection of images from backgrounds that traditionally pose problems for current fingermark detection methods. The background may, for example, be highly colored, have a complex pattern, or possess other pattern or image characteristics that make it difficult to separate fingermark ridges using traditional optical or luminescent visualization. One background that has proven to be a challenging surface for the development of latent fingermarks is the Australian polymer banknote. To demonstrate the power and applicability of infrared chemical imaging, fingermarks fumed with ethyl cyanoacrylate were successfully imaged from Australian polymer banknotes. 相似文献
42.
43.
44.
Chris Spence Kati Kulovesi María Gutiérrez Miquel Muñoz 《Review of European Community & International Environmental Law》2008,17(2):142-153
This article reviews the December 2007 United Nations Climate Change Conference in Bali. It considers expectations for the meeting and whether the event delivered on these expectations. It also evaluates the long-term context of the meeting and examines the discussions in Bali on the post-2012 period (when the Kyoto Protocol's first 'commitment period' expires). The article finds that the Bali meeting did not necessarily meet public expectations or respond directly to the latest scientific assessments calling for urgent action. However, the article also finds that Bali was successful in the context of the prevailing political and diplomatic realities and the immense complexity of the climate change challenge – a problem that does not lend itself to a 'quick fix' solution. The article concludes that Bali produced a solid outcome that gives direction to future talks and sets a clear deadline for their completion. Finally, it argues that, contrary to some experts' opinion, the lack of detail in the Bali outcome may prove to be a strength rather than a weakness, since it provides flexibility to negotiators as they try to craft a consensus by the end of 2009. 相似文献
45.
John Buckleton Chris Triggs Franco Taroni Christophe Champod Gerhard Wevers 《Science & justice》2008,48(4):178-181
The comparison of consecutively manufactured tools and firearms has provided much, but not all, of the basis for the profession of firearm and toolmark examination. The authors accept the fundamental soundness of this approach but appeal to the experimental community to close two minor gaps in the experimental procedure. We suggest that “blinding” and attention to appropriateness of other experimental conditions that would consolidate the foundations of our profession. We do not suggest that previous work is unsound. 相似文献
46.
Beatrix Elsner Chris Lewis Josef Zila 《European Journal on Criminal Policy and Research》2008,14(2-3):203-224
The article concentrates on the police role in the investigative stage in various criminal justice systems and the relationship with each national prosecution service. It is shown that in this respect the police function varies significantly from country to country. According to its legal competencies and factual procedural possibilities, the article will give a short overview of the national differences but also show that similar mechanisms are developed. 相似文献
47.
48.
49.
Chris Humphrey 《发展研究杂志》2016,52(1):92-112
This paper investigates how the unique financial model of multilateral development banks – dependent largely on issuing bonds in private capital markets to raise lending resources – came about in the early history of three different MDBs, and how this in turn shaped their operational characteristics. Historical research demonstrates that the World Bank, Inter-American Development Bank (IADB) and Andean Development Corporation (CAF) converged on organisational and operational arrangements very different to what their founders had intended, and much closer to one another, as a direct result of the need to secure sufficient resources to function as viable development lenders. The findings indicate that in the absence of governments willing or able to provide significant financing out of their budgets, MDBs tend to converge towards a single organisational model in order to maintain access to international capital markets. All three MDBs examined here modified their lending and financial policies in unexpected ways and, in the case of the IADB and CAF, even restructured their original membership, specifically for the purpose of securing adequate financial resources. 相似文献
50.