全文获取类型
| 收费全文 | 3621篇 |
| 免费 | 47篇 |
| 国内免费 | 24篇 |
专业分类
| 3692篇 |
出版年
| 2025年 | 5篇 |
| 2024年 | 8篇 |
| 2023年 | 28篇 |
| 2022年 | 24篇 |
| 2021年 | 39篇 |
| 2020年 | 42篇 |
| 2019年 | 88篇 |
| 2018年 | 65篇 |
| 2017年 | 114篇 |
| 2016年 | 111篇 |
| 2015年 | 72篇 |
| 2014年 | 265篇 |
| 2013年 | 393篇 |
| 2012年 | 188篇 |
| 2011年 | 243篇 |
| 2010年 | 214篇 |
| 2009年 | 225篇 |
| 2008年 | 184篇 |
| 2007年 | 212篇 |
| 2006年 | 176篇 |
| 2005年 | 179篇 |
| 2004年 | 160篇 |
| 2003年 | 135篇 |
| 2002年 | 85篇 |
| 2001年 | 89篇 |
| 2000年 | 43篇 |
| 1999年 | 45篇 |
| 1998年 | 32篇 |
| 1997年 | 31篇 |
| 1996年 | 32篇 |
| 1995年 | 25篇 |
| 1994年 | 33篇 |
| 1993年 | 18篇 |
| 1992年 | 22篇 |
| 1991年 | 16篇 |
| 1990年 | 24篇 |
| 1989年 | 14篇 |
| 1988年 | 10篇 |
| 1987年 | 2篇 |
| 1975年 | 1篇 |
排序方式： 共有3692条查询结果，搜索用时 15 毫秒
811.
Matt Korda 《The Nonproliferation Review》2013,20(3-4):263-284
ABSTRACTConventional theories of alliance management often overemphasize the utility of either assurance or coercion in preventing allied nuclear proliferation. Historical analysis reveals that prioritizing either of these two tactics to the exclusion of the other is inadvisable. A strategy that focuses solely on security guarantees or coercive threats is likely to encourage an allied state to pursue a hedging strategy, in which the client state continues to clandestinely develop its own nuclear capabilities while remaining underneath its patron’s defensive “umbrella.” This article introduces a new framework for understanding the effectiveness of nonproliferation-focused alliance-management strategies. By exploring the cases of West Germany and South Korea, the article concludes that the best way to prevent allies from pursuing nuclear weapons is to combine assurance with coercion. This establishes an incentive–punishment relationship that limits an ally’s motivation to develop nuclear weapons. These conclusions have particular salience today, as conversations over nuclear-weapons development have become increasingly normalized in Germany and particularly in South Korea. The United States’s capacity to influence its allies’ nuclear behavior is currently being eroded through the degradation of both patron credibility and client dependence, weakening the long-term viability of the global nonproliferation regime. 相似文献
812.
Daniel Khalessi 《The Nonproliferation Review》2013,20(3-4):421-439
ABSTRACTSince the 1950s, the United States has engaged in nuclear sharing with its NATO allies. Today, 150-200 tactical nuclear weapons remain on European soil. However, the Treaty on the Non-proliferation of Nuclear Weapons (NPT) prohibits the transfer of nuclear weapons to non-nuclear weapon states. The potential discrepancy between text and practice raises the question of how the NPT's negotiators dealt with NATO's nuclear-sharing arrangements while drafting the treaty that would eventually become the bedrock of the international nonproliferation regime. Using a multitiered analysis of secret negotiations within the White House National Security Council, NATO, and US-Soviet bilateral meetings, this article finds that NATO's nuclear-sharing arrangements strengthened the NPT in the short term by lowering West German incentives to build the bomb. However, this article also finds that decision makers and negotiators in the Lyndon B. Johnson administration had a coordinated strategy of deliberately inserting ambiguous language into drafts of Articles I and II of the Treaty to protect and preserve NATO's pre-existing nuclear-sharing arrangements in Europe. This diplomatic approach by the Johnson administration offers lessons for challenges concerning NATO and relations with Russia today. 相似文献
813.
814.
815.
《Arms and Armour》2013,10(1):33-39
AbstractAn argument is presented that Valentine Green’s mezzotint engraving ‘Queen Elizabeth at the Head of her Army at Tilbury-Fort, A.D. 1588’ (1792) was inspired by the late 18th-century life-sized group of three figures representing the same subject that was formerly on show at the Tower of London. The mezzotint presented in Acta Historica Reginarum Angliae is the only known image of the original pre-1828 setup of the display, showing the figure of the queen in a skirt-like piece of armour that has since been re-identified as King Henry VIII’s tonlet armour. 相似文献
816.
《Arms and Armour》2013,10(2):124-135
The paper re-interprets the implement known as the ‘Towton Battle Axe’ allegedly found in the river which borders the Towton Battlefield (1461), Yorkshire, England, and which now resides in Alnwick Castle, Northumberland. The paper provides parallels, in the form of comparisons with other weapons, in order that the Towton implement can be shown to be a modified former halberd dating from the early sixteenth century. It is, therefore, highly unlikely that the implement was used in the famous battle. 相似文献
817.
818.
819.
820.