首页 | 本学科首页   官方微博 | 高级检索  
文章检索
  按 检索   检索词:      
出版年份:   被引次数:   他引次数: 提示:输入*表示无穷大
  收费全文   2563篇
  免费   380篇
  国内免费   174篇
  2024年   2篇
  2023年   10篇
  2022年   22篇
  2021年   56篇
  2020年   69篇
  2019年   46篇
  2018年   82篇
  2017年   135篇
  2016年   116篇
  2015年   74篇
  2014年   211篇
  2013年   251篇
  2012年   176篇
  2011年   216篇
  2010年   159篇
  2009年   199篇
  2008年   159篇
  2007年   163篇
  2006年   159篇
  2005年   161篇
  2004年   131篇
  2003年   100篇
  2002年   82篇
  2001年   81篇
  2000年   47篇
  1999年   41篇
  1998年   35篇
  1997年   17篇
  1996年   19篇
  1995年   26篇
  1994年   18篇
  1993年   10篇
  1992年   14篇
  1991年   10篇
  1990年   10篇
  1989年   6篇
  1988年   2篇
  1987年   1篇
  1975年   1篇
排序方式: 共有3117条查询结果,搜索用时 31 毫秒
881.
This article presents survey data on the African Peace and Security Architecture (APSA). It focuses explicitly on two aspects: the internal constitution and achievements of the APSA; and coordination and cooperation with external actors, such as Regional Economic Communities, the United Nations and the European Union. The survey, conducted between October 2011 and December 2012, targeted 198 security experts in international organisations, think tanks, academia and non-governmental organisations. It reveals the APSA's current stage of development, achievements and challenges.  相似文献   
882.
现行装备器材供应存在着供应渠道过长、不能快速响应等问题,为此通过对装备器材供应链进行集成化体系结构模型设计与构建,探讨了装备器材供应链的重构策略,分别从信息流模式重构、业务流程重构和物流体系重构等3个主要方面对装备器材供应链重构策略进行了分析与探讨,以实现装备器材供应链的快速响应.  相似文献   
883.
This study revisits the causal linkages between military spending and economic growth in China and G7 countries (i.e. Canada, France, Germany, Italy, Japan, the UK, and the USA) by focusing country-specific analysis for the period 1988–2010. The panel causality analysis, which accounts for both cross-country dependency and heterogeneity across countries, is employed in this study. Our results find evidence of the neutrality hypothesis for Italy, France, and Germany, the military spending–growth detriment hypothesis for both Canada and the UK, and one-way Granger causality running from economic growth to military spending for China. Furthermore, we find a feedback between military spending and economic growth in both Japan and the USA. Thus, our results do not support that one size fits all.  相似文献   
884.
This article looks at the Kashmir conflict in South Asia, which has been going on since 1947, when India and Pakistan became independent from British colonial rule. After looking at some historical background, the article looks at both the external dimension as well as the internal dimension of the conflict. The external dimension tends to focus on Indo-Pak relations over Kashmir and the internal dimension looks at India's repressive state policies within the state of Kashmir. This article uses Mary Kaldor's “New War” thesis as a theoretical framework to understand the situation and pays special attention to the conflict's very complex and multifaceted nature. The article argues that although the levels of violence have differed from time to time in the region since 1947, today the conflict seems to have less to do with Indo-Pak relations or the external side of things and has more to do with the internal dimension and India's undemocratic ways within Kashmir. Today, Kashmir is one of the most militarised conflict zones in the world. The stationing of the Indian military and paramilitary forces in the region has only exacerbated the situation since it is the security personnel who cause much of the problem. The Armed Forces Special Powers Act gives these security forces extraordinary powers in the region, which they often abuse. The armed forces have no real understanding of the local culture or sympathy for local religious sentiments. Poverty, corruption, administrative failure, police brutality, identity politics and human rights abuses are some of the key features associated with this conflict. Methodologically, a number of interviews were carried out with the local people in the region recently. From the data gathered through the interviews, it is very obvious that the people still feel very oppressed and that the situation is still very volatile, fraught with uncertainty. Finally, after making an assessment of the situation, the article tries to suggest methods of peaceful building and conflict management as the way forward.  相似文献   
885.
Sub-Saharan Africa has witnessed the end of foreign colonial rule, the rise and fall of autocratic political regimes, and the disappearance of statist command economies. The challenges were to turn populations into coherent nations owing allegiance to the state; to democratise the state structures that govern these populations; and to liberalise the rules that regulate economic transactions. An important source to assess these prospects are the views and attitudes of ordinary Africans. This essay reflects on the original data derived from a crossnational research project. Nine African states were surveyed between 1999 and 2000. An attempt is made to gather some propositions from the analysis of the data. Many present serious challenges to common wisdom about African politics. It appears that the process of nationbuilding has created coherent political communities with high levels of national identity; that democratising the state in Africa builds on existing indigenous demands from ordinary Africans; and that economic liberalisation proceeds in the face of a mixed set of values about market and state.  相似文献   
886.

Since 1975 “offsets” have begun to appear frequently in contracts covering international sales of aircraft and other products incorporating advanced technology. Offsets involve reciprocity beyond that normally found in an exchange of goods for money. They may involve co‐production or co‐design of the principal item to be exchanged, or acceptance by the seller of goods or services unrelated to it as partial payment (indirect offsets or countertrade).

The United States has become the major provider of offsets and anti‐offset sentiment has grown. Economists interpret them as trade diverting. Politicians from regions suffering loss of employment view them as bestowing unfair advantage to foreign competitors.

The authors examine offsets from both theoretical and policy perspectives and conclude that in such noncompetitive markets, second‐best considerations dominate, requiring case‐by‐case evaluation of impacts and rendering across‐the‐board determinations of welfare loss suspect.  相似文献   
887.
This paper investigates the potential for modeling and simulation to contribute to new defense system development, by increasing the productivity of traditional R&D in developing system‐specific technology. Building on a previous optimal control model of defense system R&D, it shows that (1) the optimal use of modeling is related in a natural way to that of traditional R&D, and (2) both have similar optimal profiles over time. Simulated results based on limited historical data suggest that optimal use of modeling could increase the rate of growth in system‐specific technology significantly.  相似文献   
888.
One of the most important issues facing the post‐Cold War U.S. defense establishment concerns the future allocation of combat tasks and responsibilities among different branches of the armed forces. The challenge is to reduce unnecessary redundancy across roles and missions when resources are highly constrained, without compromising military effectiveness. Defining the policy problem as one of resource allocation rather than operational effectiveness, we develop a methodology for allocating roles and missions. Our methodology focuses at the highest level of force aggregation and uses a mathematical programming model to produce cross‐service cross‐mission trade‐offs that will yield the best total force combat and non‐combat potential within resource consumption constraints.  相似文献   
889.
Abstract

The creation of the Africa Command (AFRICOM) has reflected the growth in the strategic importance of Africa in US foreign policy since the end of the 1990s. One of the objectives of this new geographical military command is to forge closer links between foreign, security and development policies. However, this approach met with a number of difficulties associated with the challenge of ‘inter-agency cooperation’ among rather disparate actors from foreign affairs, defence and development. In addition, the establishment of AFRICOM has met with fierce criticism in the US and elsewhere – especially in Africa – culminating in the charge that the US foreign and development policies in Africa are being militarised. Although AFRICOM has a number of interesting features, this paper shows that it has reacted to these criticisms by realigning itself more closely with the traditional model of a military command, at the expense of the innovative interagency elements.  相似文献   
890.
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号