全文获取类型
收费全文 | 410篇 |
免费 | 15篇 |
出版年
2021年 | 4篇 |
2020年 | 4篇 |
2019年 | 6篇 |
2017年 | 8篇 |
2016年 | 7篇 |
2015年 | 8篇 |
2014年 | 6篇 |
2013年 | 71篇 |
2011年 | 4篇 |
2009年 | 4篇 |
2007年 | 6篇 |
2005年 | 4篇 |
2004年 | 7篇 |
2003年 | 4篇 |
2002年 | 6篇 |
2001年 | 7篇 |
2000年 | 4篇 |
1999年 | 7篇 |
1998年 | 8篇 |
1997年 | 10篇 |
1996年 | 6篇 |
1995年 | 11篇 |
1994年 | 13篇 |
1993年 | 11篇 |
1992年 | 11篇 |
1991年 | 12篇 |
1990年 | 7篇 |
1989年 | 6篇 |
1988年 | 8篇 |
1987年 | 9篇 |
1986年 | 3篇 |
1985年 | 10篇 |
1984年 | 9篇 |
1983年 | 6篇 |
1982年 | 6篇 |
1981年 | 10篇 |
1980年 | 6篇 |
1979年 | 12篇 |
1978年 | 7篇 |
1977年 | 5篇 |
1976年 | 6篇 |
1975年 | 8篇 |
1974年 | 9篇 |
1973年 | 6篇 |
1972年 | 10篇 |
1971年 | 6篇 |
1970年 | 3篇 |
1969年 | 3篇 |
1968年 | 5篇 |
1967年 | 4篇 |
排序方式: 共有425条查询结果,搜索用时 15 毫秒
401.
Jacques E. C. Hymans 《战略研究杂志》2013,36(5):769-797
Most historical accounts of the atomic bombings of Japan show little interest in Britain's explicit authorization for the attacks. Meanwhile, the few historians who have attempted to explain it rely on a unitary, rational actor model of the British state that is misleading. This article demonstrates that high-ranking British officials became anxious early on about the strategic consequences of a peremptory use of the new weapon. Therefore, especially over the course of 1944 they sought to engage Washington on the linked questions of the bomb's wartime use and its postwar control. However, these officials' initiatives were rebuffed by Prime Minister Winston Churchill, who paved the way to the bombings based on a fervent desire for Anglo-American integration, and on a dim understanding of the bomb's revolutionary potential. 相似文献
402.
403.
404.
Future conflict between armed forces will occur both in the physical domain as well as the information domain. The linkage of these domains is not yet fully understood. We study the dynamics of a force subject to kinetic effects as well as a specific network effect–spreading malware. In the course of our study, we unify two well‐studied models: the Lanchester model of armed conflict and deterministic models of epidemiology. We develop basic results, including a rule for determining when explicit modeling of network propagation is required. We then generalize the model to a force subdivided by both physical and network topology, and demonstrate the specific case where the force is divided between front‐ and rear‐echelons. © 2013 Wiley Periodicals, Inc. Naval Research Logistics, 2013 相似文献
405.
Edward C. O'Dowd 《Small Wars & Insurgencies》2013,24(3):561-587
In a very important sense, the Vietnamese military history of the communist era began in 1941, when Ho Chi Minh prepared ‘Guerrilla Tactics’ (Cach Danh Du Kich).1 The publication of this essay, which was a manual on the tactics, techniques, and procedures of guerrilla warfare, preceded the founding of the first armed propaganda unit (Tuyen Truyen Doi Vo Trang) on 22 December 1944, which later became the People's Army of Vietnam (PAVN, Quan Doi Nhan Dan); as well as the revolutionary writings of Truong Chinh (1946–1947) and Vo Nguyen Giap (1959). The fact that ‘Tactics’ was published by the Viet Minh reinforces the claim made by the PAVN that it was the first authoritative Vietnamese writing on this important subject. 相似文献
406.
Inventory models with nonlinear shortage costs and stochastic lead times; applications of shape properties of randomly stopped counting processes
下载免费PDF全文
![点击此处可从《海军后勤学研究》网站下载免费的PDF全文](/ch/ext_images/free.gif)
In this article, we study generalizations of some of the inventory models with nonlinear costs considered by Rosling in (Oper. Res. 50 (2002) 797–809). In particular, we extend the study of both the periodic review and the compound renewal demand processes from a constant lead time to a random lead time. We find that the quasiconvexity properties of the cost function (and therefore the existence of optimal (s, S) policies), holds true when the lead time has suitable log‐concavity properties. The results are derived by structural properties of renewal delayed processes stopped at an independent random time and by the study of log‐concavity properties of compound distributions. © 2015 Wiley Periodicals, Inc. Naval Research Logistics 62: 345–356, 2015 相似文献
407.
The dynamic and stochastic knapsack Problem with homogeneous‐sized items and postponement options
下载免费PDF全文
![点击此处可从《海军后勤学研究》网站下载免费的PDF全文](/ch/ext_images/free.gif)
This article generalizes the dynamic and stochastic knapsack problem by allowing the decision‐maker to postpone the accept/reject decision for an item and maintain a queue of waiting items to be considered later. Postponed decisions are penalized with delay costs, while idle capacity incurs a holding cost. This generalization addresses applications where requests of scarce resources can be delayed, for example, dispatching in logistics and allocation of funding to investments. We model the problem as a Markov decision process and analyze it through dynamic programming. We show that the optimal policy with homogeneous‐sized items possesses a bithreshold structure, despite the high dimensionality of the decision space. Finally, the value (or price) of postponement is illustrated through numerical examples. © 2015 Wiley Periodicals, Inc. Naval Research Logistics 62: 267–292, 2015 相似文献
408.
Isabelle Côté 《Civil Wars》2015,17(3):357-378
Why are large population movements conflict-prone in some regions while they remain peacefully integrated elsewhere? I argue that clashes between ethnically distinct indigenous populations and migrants – i.e. ‘Sons of the Soil (SoS) conflict’ – erupt when there are large socio-economic and political horizontal inequalities between ‘dominant migrants’ and locals. A comparative case study of two Chinese minority regions based on ethnographic fieldwork and population data provides a vivid illustration of the mechanisms linking migration to SoS conflict. With fewer HIs between migrants and locals, Inner Mongolia avoided many of the violent clashes that were commonplace in Qinghai, a province fraught with disparities. 相似文献
409.
Chowdhury (1991) applied Granger causality methods to military expenditure and economic growth series in 55 developing countries. This note applies a similar approach to Australia and finds no causal relationship between military expenditure and growth in either direction. 相似文献
410.
For a three‐sector Feder‐Ram framework, we present time‐series, cross‐sectional estimates for two cohorts, consisting of Asian and Latin American countries. The estimates indicate that private investment, and defense and non‐defense public spending are growth promoting for alternative error components representations. For the best error components representation, greater growth enhancement is associated with the two forms of public spending in Asia than in Latin America, while the opposite comparison characterizes private investment. Although defense is growth promoting, an opportunity cost exists insofar as non‐defense spending, financed by defense spending, appears to give a small net boost to growth in Latin America. 相似文献