全文获取类型
| 收费全文 | 250篇 |
| 免费 | 0篇 |
专业分类
| 250篇 |
出版年
| 2020年 | 3篇 |
| 2019年 | 13篇 |
| 2018年 | 9篇 |
| 2017年 | 4篇 |
| 2016年 | 8篇 |
| 2015年 | 7篇 |
| 2014年 | 7篇 |
| 2013年 | 75篇 |
| 2011年 | 8篇 |
| 2010年 | 2篇 |
| 2009年 | 3篇 |
| 2008年 | 4篇 |
| 2007年 | 7篇 |
| 2006年 | 2篇 |
| 2005年 | 5篇 |
| 2004年 | 2篇 |
| 2003年 | 3篇 |
| 2002年 | 4篇 |
| 2001年 | 3篇 |
| 1999年 | 5篇 |
| 1998年 | 1篇 |
| 1997年 | 3篇 |
| 1996年 | 3篇 |
| 1995年 | 3篇 |
| 1994年 | 6篇 |
| 1993年 | 3篇 |
| 1992年 | 4篇 |
| 1991年 | 3篇 |
| 1990年 | 3篇 |
| 1989年 | 4篇 |
| 1988年 | 4篇 |
| 1987年 | 4篇 |
| 1986年 | 1篇 |
| 1985年 | 2篇 |
| 1984年 | 1篇 |
| 1983年 | 3篇 |
| 1981年 | 1篇 |
| 1979年 | 2篇 |
| 1978年 | 1篇 |
| 1976年 | 1篇 |
| 1975年 | 2篇 |
| 1974年 | 1篇 |
| 1973年 | 3篇 |
| 1972年 | 4篇 |
| 1971年 | 2篇 |
| 1970年 | 3篇 |
| 1969年 | 1篇 |
| 1968年 | 2篇 |
| 1967年 | 1篇 |
| 1966年 | 1篇 |
排序方式： 共有250条查询结果，搜索用时 0 毫秒
121.
There are n boxes with box i having a quota value Balls arrive sequentially, with each ball having a binary vector attached to it, with the interpretation being that if Xi = 1 then that ball is eligible to be put in box i. A ball's vector is revealed when it arrives and the ball can be put in any alive box for which it is eligible, where a box is said to be alive if it has not yet met its quota. Assuming that the components of a vector are independent, we are interested in the policy that minimizes, either stochastically or in expectation, the number of balls that need arrive until all boxes have met their quotas. © 2014 Wiley Periodicals, Inc. 62:23–31, 2015 相似文献
122.
David Capie 《战略研究杂志》2015,38(3):309-331
AbstractHumanitarian Assistance and Disaster Relief (HADR) is increasingly important for East Asian militaries, but there is little scholarship on how HADR relates to broader national strategies. This article considers US involvement in HADR in East Asia in relation to changing conceptions of national power. HADR is frequently described as use of ‘hard’ military assets to further soft power goals. Looking at recent US experiences, this article shows that HADR also serves instrumental ends linked to traditional military objectives. Rather than considering power as ‘soft’ or ‘hard’, it argues that HADR illustrates connections between non-coercive and coercive uses of military power. 相似文献
123.
124.
In 1796 a 13-year-old boy playing on wasteland behind his father’s house in Ribchester, Lancashire discovered an assemblage of over 30 Roman artefacts, including a decorated brass helmet. Although partially corroded the Ribchester helmet is a fine example of a first-century AD cavalry sports helmet. This article considers how the interpretation of the helmet has evolved since its discovery. The multi-faceted iconography of the helmet with its mural crown diadem is that of an elite soldier and is paralleled in other examples of cavalry sports helmets of the Ribchester type. The long-neglected imagery on the helmet bowl is reinterpreted and seen not as a haphazard collection of randomly placed combatants but as a highly structured, symmetrical composition specifically designed to be viewed from different directions. 相似文献
125.
The malaise that the United States, and the West, have experienced in recent campaigns stems in large part from unclear thinking about war, its political essence, and the strategies needed to join the two. Instead, analysis and response are predicated on entrenched theoretical concepts with limited practical utility. The inadequacy of understanding has spawned new, and not so new, terms to capture unanticipated trends, starting with the re-discovery of “insurgency” and “counterinsurgency” and leading to discussion of “hybrid threats” and “gray-zone” operations. New terminology can help, but the change must go deeper. Challenging analytical orthodoxy, this article sets out a unifying approach for the study of political violence, or more accurately: violent politics. It provides a conceptual foundation that helps to make sense of recent shifts in warfare. In effect, it offers sorely needed theoretical insights into the nature of strategy and guides the process of responding to nontraditional threats. 相似文献
126.
Existing theory on counterinsurgency does not adequately explain persistent insurrection in face of the reconstruction work currently underway in Afghanistan and Iraq. We starkly depart from the literature by developing a simple model of reconstruction allowing misalignment of occupier spending with community preferences. Insurgency arises endogenously as a result of the mix of spending rather than its level. Occupier insistence on its preferred path of reconstruction may lead to fewer projects of any kind being completed. In equilibrium, the occupier may accept an endogenous insurgency to achieve a preferred project mix, or be constrained in its choice even when no insurgency occurs. 相似文献
127.
Why are some countries prone to ethno-nationalist conflict, whereas others are plagued by class conflict? This is a question that has seldom been raised and rarely been examined empirically. This paper presents a social-structural theory to account for the variable incidence of these two forms of political instability. These two types of conflict result from distinct principles of group solidarity – ethnicity and class – and since each individual is simultaneously a member of an ethnic group (or many such groups) and a particular class, these two principles vary in the degree to which they are mutually exclusive or cross-cutting. The degree of economic stratification between groups and economic segmentation within them shapes the relative salience of each principle of group solidarity in any society and is associated with a characteristic form of political mobilization. In places where between-group inequalities are high, and within-group inequalities low, ethnicity should be the dominant principle of group solidarity and serve as the primary basis of group conflict. By contrast, in countries where between-group inequalities are low, and within-group inequalities high, class is more likely to serve as the dominant principle of group solidarity, and conflicts along class lines are more likely. We test these conjectures with data in over 100 countries on cross-cutting cleavages, ethnic war, and class conflict. The results are supportive of the theory, and provide evidence that how groups are stratified and segmented in societies shapes the type of civil war. 相似文献
128.
David J. Lonsdale 《Defence Studies》2016,16(4):390-407
Colin Gray’s dimensions of strategy, built upon the earlier work of Clausewitz and Howard, has theoretical, practical, and pedagogic value for the Strategic Studies community. This paper further develops the theory, arguing that the dimensions can be controlled or managed to improve strategic performance. The dimensions are divided into two categories: “internal” and “external” to the process of strategy. The paper describes the dynamic process by which the internal dimensions, which can be controlled, are used to exert influence over the external dimensions that are beyond the control of the strategist. It is argued that six dimensions hold the key to strategic success: politics and the five dimensions concerned with warfighting. This conclusion validates the Clausewitzian paradigm with its emphasis on policy and battle. 相似文献
129.
David Lonsdale 《Journal of Military Ethics》2016,15(2):100-121
The objective of this article is to move ethical discourse on military strategy beyond the confines of the established War Convention. This is achieved by utilising the common good, a concept found in political philosophy and theology. The common good acts as a positive organising concept for socio-political activity. With its focus on peace, development and the flourishing of the individual and community, the common good poses a significant challenge to strategy. This article constructs an approach to strategy that is compatible with the common good. Importantly, it does so whilst respecting the pursuit of victory as an indispensable component of strategy’s true nature. The theory presented in this article is then tested in relation to four different modes of strategy: regular war, irregular war, deterrence, and cyberwar. 相似文献
130.
David P. Oakley 《Small Wars & Insurgencies》2019,30(1):62-80
ABSTRACTDespite its portrayal as something new, the concept of the ‘gray zone’ is not novel. It was the Cold War battleground in which the USA and the Soviet Union waged rival unconventional campaigns, and it was there that the newly formed Central Intelligence Agency (CIA) was given responsibility for operating. This was not the organization’s original purpose, but Cold War exigencies forced Washington to improvise and build an organization with unique capabilities. These early years shaped the CIA’s operations directorate, creating two distinct cultures within the larger agency, one focused on intelligence collection and the other focused on covert action. 相似文献