全文获取类型
收费全文 | 367篇 |
免费 | 41篇 |
国内免费 | 15篇 |
出版年
2024年 | 2篇 |
2023年 | 3篇 |
2022年 | 2篇 |
2021年 | 3篇 |
2020年 | 19篇 |
2019年 | 26篇 |
2018年 | 30篇 |
2017年 | 42篇 |
2016年 | 32篇 |
2015年 | 4篇 |
2014年 | 34篇 |
2013年 | 76篇 |
2012年 | 17篇 |
2011年 | 13篇 |
2010年 | 12篇 |
2009年 | 17篇 |
2008年 | 12篇 |
2007年 | 12篇 |
2006年 | 11篇 |
2005年 | 18篇 |
2004年 | 6篇 |
2003年 | 5篇 |
2002年 | 4篇 |
2001年 | 8篇 |
2000年 | 5篇 |
1999年 | 2篇 |
1998年 | 1篇 |
1996年 | 1篇 |
1995年 | 1篇 |
1994年 | 2篇 |
1993年 | 1篇 |
1990年 | 2篇 |
排序方式: 共有423条查询结果,搜索用时 15 毫秒
341.
以无人车集群系统协同监视再入体着靶过程为任务背景,开展智能集群自组织策略相关技术研究。设计无人车集群执行再入体着靶协同监视的集群行为模式;针对协同监视过程中的集群聚集行为,提出基于合作博弈的智能集群自主聚集策略。各智能体以实现群体聚集为"合作目标",以降低自身能量消耗为"竞争目标",开展博弈;基于微粒群算法规划局部路径,最终使群体系统涌现出聚集行为。仿真实验验证了设计的自主聚集策略的有效性。 相似文献
342.
Terence M. Holmes 《战略研究杂志》2017,40(7):1039-1058
Clausewitz was much preoccupied with the apparent contradiction between real and absolute war. Why did war in history so rarely exhibit the extremes of violence and energy implied in the pure concept of war? Clausewitz’s commentators have usually followed him in thinking that this was a genuine problem in need of a solution, but I want to question that view. I will argue that Clausewitz did not have a coherent philosophy of absolute war, and therefore the contradiction he posited between real and absolute war was equally meaningless – as, too, was his effort to resolve it by claiming that some real wars approached or even attained the absolute form of war. The real problem was not the opposition of real and absolute war, but the self-contradictory theory of absolute war. 相似文献
343.
344.
345.
Kyle Y. Lin 《海军后勤学研究》2003,50(7):702-718
Consider a distributed system where many gatekeepers share a single server. Customers arrive at each gatekeeper according to independent Poisson processes with different rates. Upon arrival of a new customer, the gatekeeper has to decide whether to admit the customer by sending it to the server, or to block it. Blocking costs nothing. The gatekeeper receives a reward after a customer completes the service, and incurs a cost if an admitted customer finds a busy server and therefore has to leave the system. Assuming an exponential service distribution, we formulate the problem as an n‐person non‐zero‐sum game in which each gatekeeper is interested in maximizing its own long‐run average reward. The key result is that each gatekeeper's optimal policy is that of a threshold type regardless what other gatekeepers do. We then derive Nash equilibria and discuss interesting insights. © 2003 Wiley Periodicals, Inc. Naval Research Logistics 50: 702–718, 2003. 相似文献
346.
Steve Alpern 《海军后勤学研究》2002,49(3):256-274
Two players are independently placed on a commonly labelled network X. They cannot see each other but wish to meet in least expected time. We consider continuous and discrete versions, in which they may move at unit speed or between adjacent distinct nodes, respectively. There are two versions of the problem (asymmetric or symmetric), depending on whether or not we allow the players to use different strategies. After obtaining some optimality conditions for general networks, we specialize to the interval and circle networks. In the first setting, we extend the work of J. V. Howard; in the second we prove a conjecture concerning the optimal symmetric strategy. © 2002 Wiley Periodicals, Inc. Naval Research Logistics 49: 256–274, 2002; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/nav.10011 相似文献
347.
通过结合空降兵师(团)级登岛作战的战术特点,确立了遮断点的单点和联合价值的指标体系,建立了以联盟博弈为基础的兵力分配初步模型,然后以Shapley值作为此联盟博弈的解,结合投放过程中的兵力损耗,得到一个合理的兵力分配方案,从而建立了师(团)级空降登岛作战的兵力分配模型和算法. 相似文献
348.
349.
350.
Jan Almäng 《Defence Studies》2019,19(2):189-204
It has frequently been observed in the literature on hybrid wars that there is a grey zone between peace and war, and that hybrid wars are conflicts which are not clear cases of war. In this paper, I attempt to illuminate this grey zone and the concept and nature of war from the philosophical discussions of vagueness and institutional facts. Vague terms are characterized by the fact that there is no non-arbitrary boundary between entities which lie in their extension, and entities which do not lie in their extension. I apply a theory of vagueness to notions such as “war” and “peace” and go on to suggest that the exact boundary for what counts as a war or not is arbitrary. However, the context in which the conflict occurs determines a range of possible locations for this boundary. The most important contextual parameter is in this respect how the parties to the conflict themselves conceptualize the conflict. I suggest that this can in various ways help us understand grey-zone conflicts. 相似文献