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   331篇
  免费   4篇
  2023年   2篇
  2021年   2篇
  2019年   7篇
  2018年   11篇
  2017年   9篇
  2016年   7篇
  2015年   5篇
  2014年   6篇
  2013年   94篇
  2011年   2篇
  2009年   4篇
  2008年   6篇
  2007年   4篇
  2006年   4篇
  2005年   5篇
  2004年   7篇
  2003年   5篇
  2002年   7篇
  2001年   3篇
  2000年   2篇
  1999年   3篇
  1998年   5篇
  1997年   5篇
  1996年   4篇
  1995年   9篇
  1994年   7篇
  1993年   6篇
  1992年   7篇
  1991年   7篇
  1990年   5篇
  1989年   5篇
  1988年   5篇
  1987年   9篇
  1986年   5篇
  1985年   7篇
  1984年   3篇
  1983年   3篇
  1982年   5篇
  1981年   3篇
  1980年   4篇
  1977年   2篇
  1976年   3篇
  1975年   2篇
  1974年   6篇
  1973年   5篇
  1972年   3篇
  1970年   2篇
  1969年   4篇
  1967年   2篇
  1966年   1篇
排序方式: 共有335条查询结果,搜索用时 15 毫秒
191.
This essay provides an overview of the eras of Mexican cinema followed by an analysis of 10 Spanish-language narco cinematic representations, an overview of the eras of American cinema followed by an analysis of 10 English language narco cinematic representations, and a conclusion that compares and contrasts the Mexican and US narco war cinematic experience. Due to divergent national trajectories – Mexico is engulfed in narco violence and corruption while the United States is not – more differences than similarities exist between these national cinematic genres. Dark spirituality themes are also increasingly evident in more recent narco war films.  相似文献   
192.
193.
Addressing insurgency requires the same application of operational art as utilized in conventional warfare planning. Counterinsurgency strategy will be driven by the nature of the insurgent movement, with campaigns constructed to use tactics appropriately so that key facets of the insurgent campaign are neutralized. It is especially important to determine whether terror is used as a tactic (a method of action) by an insurgency or as a stand-alone strategy (a logic of action) by a challenger divorced from a mass base. Insurgencies, in turn, will normally emphasize strategically either winning allegiance of the target population or using violence as a substitute for other methods. Each of these approaches requires the weighting of the appropriate campaign elements of the counterinsurgency strategy. Sri Lanka, having faced both approaches, is an especially useful case study.  相似文献   
194.
This paper extends traditional production/distribution system analysis to address raw material, factories, and markets located beyond Earth. It explains the eventual advantages of such operations and discusses likely sites in the solar system. It furnishes a typology for production/distribution systems, assessing the fit of each type to space operations. It briefly reviews the physics of orbits. It develops transportation and inventory cost functions for the simplest case of Hohmann trajectories, and for transportation between circular orbits of similar radii using higher‐energy trajectories. These cost functions are used to derive a model of production/distribution system cost, the minimization of which selects an optimal factory location. The paper suggests potential extensions to this work, and concludes with ideas for location research on the novel reaches of extraterrestrial space. © 2005 Wiley Periodicals, Inc. Naval Research Logistics, 2005.  相似文献   
195.
In this paper we present an application of the core solution concepts for multi‐objective games to a bank ATM network model. In these games, the worth of a coalition is given by a subset of vectors of the k‐dimensional space rather than by a scalar. The paper investigates how an ATM network model based on multi‐objective cooperative game theory could be used as an alternative way of setting interchange fees paid by the customer's bank to the one that owns the ATM. © 2004 Wiley Periodicals, Inc. Naval Research Logistics, 2005  相似文献   
196.
The deterministic problem for finding an aircraft's optimal risk trajectory in a threat environment has been formulated. The threat is associated with the risk of aircraft detection by radars or similar sensors. The model considers an aircraft's trajectory in three‐dimensional (3‐D) space and represents the aircraft by a symmetrical ellipsoid with the axis of symmetry directing the trajectory. Analytical and discrete optimization approaches for routing an aircraft with variable radar cross‐section (RCS) subject to a constraint on the trajectory length have been developed. Through techniques of Calculus of Variations, the analytical approach reduces the original risk optimization problem to a vectorial nonlinear differential equation. In the case of a single detecting installation, a solution to this equation is expressed by a quadrature. A network optimization approach reduces the original problem to the Constrained Shortest Path Problem (CSPP) for a 3‐D network. The CSPP has been solved for various ellipsoid shapes and different length constraints in cases with several radars. The impact of ellipsoid shape on the geometry of an optimal trajectory as well as the impact of variable RCS on the performance of a network optimization algorithm have been analyzed and illustrated by several numerical examples. © 2006 Wiley Periodicals, Inc. Naval Research Logistics, 2006  相似文献   
197.
It is commonly assumed in the foreign policy literature that narratives are uniquely persuasive and thus integral to obtaining public support for war. Yet, empirical research on “strategic narrative” is often vague on both the concept of narrative and how it persuades. Moreover, the stories publics use to interpret war are rarely examined. This paper offers a novel approach to studying “from the ground up” the war stories of individual British citizens. It examines public interpretations of war through emplotment: the way people select and link events to create a coherent story. Examining the wars people include and those they silence, it illustrates how a diverse range of citizens morally evaluates Britain’s military role, be it as a Force for Good, a Force for Ill or a country Learning from its Mistakes. In doing so, the paper offers an alternative methodological approach to studying how individual citizens understand war.  相似文献   
198.
The British Military Covenant can be located in and from many sources and from 2011 onwards in primary legislation. This article argues that the provision of military housing amounts to an early test of how the military covenant is understood and used by those involved in defence policy, and those in the armed forces affected by it. It finds that housing was a prominent feature of how service personnel understood how they were valued, but was not explicitly understood as a covenant issue by those personnel or the officials in charge of the Defence Estates. We locate three reasons for this: (1) the covenant has been poorly translated from aspiration into policy practice, (2) the covenant is unevenly understood across its stakeholders which has the effect of generating disappointment through misaligned expectations, (3) those engaged in the reform process surrounding the Defence Infrastructure Organisation (DIO) saw the covenant as a means to energise reform. Ultimately housing was seen as a dry and technocratic business area and thus an issue ripe for being refracted through the covenant was ultimately left outside of its remit.  相似文献   
199.
Banks have found it advantageous to connect their Automated Teller Machines (ATMs) in networks so that customers of one bank may use the ATMs of any bank in the network. When this occurs, an interchange fee is paid by the customer's bank to the one that owns the ATM. These have been set by historic interbank negotiation. The paper investigates how a model based on n-player game theory concepts of Shapley value and nucleolus could be used as an alternative way of setting such fees. © 1998 John Wiley & Sons, Inc. Naval Research Logistics 45: 407–417, 1998  相似文献   
200.
The Inspection Game is a multistage game between a customs inspector and a smuggler, first studied by Melvin Dresher and Michael Maschler in the 1960s. An extension allowing the smuggler to act more than once, treated by Sakaguchi in a special case, is solved. Also, a more natural version of Sakaguchi's problem is solved in the special case where the smuggler may act at each stage. © 1998 John Wiley & Sons, Inc. Naval Research Logistics 45: 327–334, 1998  相似文献   
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