全文获取类型
收费全文 | 399篇 |
免费 | 18篇 |
专业分类
各国政治 | 28篇 |
工人农民 | 28篇 |
世界政治 | 26篇 |
外交国际关系 | 12篇 |
法律 | 185篇 |
中国政治 | 1篇 |
政治理论 | 137篇 |
出版年
2021年 | 5篇 |
2020年 | 7篇 |
2019年 | 11篇 |
2018年 | 7篇 |
2017年 | 11篇 |
2016年 | 14篇 |
2015年 | 9篇 |
2014年 | 10篇 |
2013年 | 79篇 |
2012年 | 11篇 |
2011年 | 9篇 |
2010年 | 10篇 |
2009年 | 15篇 |
2008年 | 13篇 |
2007年 | 19篇 |
2006年 | 12篇 |
2005年 | 11篇 |
2004年 | 10篇 |
2003年 | 9篇 |
2002年 | 14篇 |
2001年 | 11篇 |
2000年 | 4篇 |
1999年 | 12篇 |
1998年 | 5篇 |
1997年 | 4篇 |
1996年 | 6篇 |
1995年 | 5篇 |
1994年 | 5篇 |
1993年 | 4篇 |
1992年 | 10篇 |
1991年 | 10篇 |
1990年 | 6篇 |
1989年 | 6篇 |
1988年 | 3篇 |
1986年 | 2篇 |
1985年 | 2篇 |
1984年 | 3篇 |
1983年 | 3篇 |
1981年 | 6篇 |
1979年 | 3篇 |
1978年 | 1篇 |
1977年 | 3篇 |
1976年 | 1篇 |
1974年 | 3篇 |
1973年 | 1篇 |
1972年 | 1篇 |
1971年 | 1篇 |
1969年 | 1篇 |
1968年 | 1篇 |
1967年 | 4篇 |
排序方式: 共有417条查询结果,搜索用时 15 毫秒
41.
42.
43.
Carpenter Belinda Harris Megan Jowett Steph Tait Gordon Scott Bray Rebecca 《Critical Criminology》2021,29(3):527-545
Critical Criminology - This article explores the over-representation of Indigenous people in suicide statistics internationally as indicative of the broader impacts of colonialism. The purpose of... 相似文献
44.
Harris Mushtaq B.Eng. Shahryar Rahnamayan Ph.D. P.Eng. Areeb Siddiqi B.Eng. 《Journal of forensic sciences》2015,60(1):212-218
Color separation is an image processing technique that has often been used in forensic applications to differentiate among variant colors and to remove unwanted image interference. This process can reveal important information such as covered text or fingerprints in forensic investigation procedures. However, several limitations prevent users from selecting the appropriate parameters pertaining to the desired and undesired colors. This study proposes the hybridization of an interactive differential evolution (IDE) and a color separation technique that no longer requires users to guess required control parameters. The IDE algorithm optimizes these parameters in an interactive manner by utilizing human visual judgment to uncover desired objects. A comprehensive experimental verification has been conducted on various sample test images, including heavily obscured texts, texts with subtle color variations, and fingerprint smudges. The advantage of IDE is apparent as it effectively optimizes the color separation parameters at a level indiscernible to the naked eyes. 相似文献
45.
46.
Product counterfeiting has grown in scope, scale and complexity in the last two decades, and now affects many areas of manufacturing and retailing from clothes and CDs to items such as shampoo and vehicle components. Based on a wide range of interviews in the UK, this article argues that despite recent legislative change and increased criminal penalties for counterfeiters, enforcement is haphazard, resource problems often dictate that no criminal prosecution is undertaken, and actual penalties remain low. Moreover, questions of whether or not a particular item is counterfeit have become greatly complicated by the development of outsourcing and the rise of parallel trading. These points suggest that counterfeiting is likely to grow in the future. 相似文献
47.
Sir Thomas Harris 《亚洲事务》2013,44(2):189-198
This article reflects his address to members of the Society on 12 November 2007. 相似文献
48.
49.
50.