全文获取类型
收费全文 | 320篇 |
免费 | 48篇 |
国内免费 | 16篇 |
出版年
2023年 | 3篇 |
2022年 | 4篇 |
2021年 | 8篇 |
2020年 | 11篇 |
2019年 | 14篇 |
2018年 | 9篇 |
2017年 | 19篇 |
2016年 | 18篇 |
2015年 | 12篇 |
2014年 | 32篇 |
2013年 | 119篇 |
2012年 | 18篇 |
2011年 | 14篇 |
2010年 | 7篇 |
2009年 | 11篇 |
2008年 | 12篇 |
2007年 | 21篇 |
2006年 | 13篇 |
2005年 | 8篇 |
2004年 | 5篇 |
2003年 | 4篇 |
2002年 | 6篇 |
2001年 | 3篇 |
2000年 | 1篇 |
1999年 | 2篇 |
1998年 | 1篇 |
1995年 | 3篇 |
1994年 | 1篇 |
1993年 | 2篇 |
1991年 | 1篇 |
1989年 | 2篇 |
排序方式: 共有384条查询结果,搜索用时 406 毫秒
21.
22.
23.
尤靖雯 《武警工程学院学报》2014,(5):17-20
党的十八届三中全会的最大亮点和理论创新之一就是,提出了要实现市场对资源配置的决定性作用。这是思想解放的重大突破,也是深化经济体制改革以及引领其他领域改革的基本方针。阐述了改革开放35年党对市场经济地位和作用认识的历史进程,以及我国社会主义市场经济地位转变的必然性,提出了全面深化经济体制改革、实现市场经济地位转变的举措。 相似文献
24.
We consider a loss system with a fixed budget for servers. The system owner's problem is choosing the price, and selecting the number and quality of the servers, in order to maximize profits, subject to a budget constraint. We solve the problem with identical and different service rates as well as with preemptive and nonpreemptive policies. In addition, when the policy is preemptive, we prove the following conservation law: the distribution of the total service time for a customer entering the slowest server is hyperexponential with expectation equal to the average service rate independent of the allocation of the capacity. © 2015 Wiley Periodicals, Inc. Naval Research Logistics 62: 81–97, 2015 相似文献
25.
26.
Stephen Blank 《Defense & Security Analysis》2012,28(1):36-54
Asia, where nuclear powers already interact (including North Korea), exerts a growing influence on the thinking and policy underlying Russia's current and future nuclear (and overall defense) posture. China's rise is forcing Russia into a greater reliance on strategic offensive weapons and tactical nuclear weapons. These in turn will reinforce its opposition to US missile defenses, not only in Europe but also in Asia. Russia must now entertain the possibility of nuclear use in regional conflicts that would otherwise remain purely conventional. It cannot be postulated blindly that nuclear weapons serve no discernible purpose other than to deter nuclear attacks by other nuclear powers. The strategic equation in Asia and in the Russian Far East convincingly demonstrates the falsity of this approach. Nuclear weapons will be the essential component of Russia's regional defense policy if not of its overall policies – and this also includes contingencies in Europe. 相似文献
27.
Sjef Orbons 《Defense & Security Analysis》2012,28(2):114-130
Commanders of the International Security Assistance Force (ISAF) have repeatedly stressed the hearts and minds approach in Afghanistan, in saying that the human terrain is decisive for a successful outcome of the mission. Avoidance of civilian casualties is considered of strategic importance, and by nature highly dependent on the management of tactical level Escalation of Force (EoF) situations. Non‐lethal weapons (NLWs) are expected to enable tactical commanders to avoid innocent civilian casualties in such situations. This article considers a selected NLW on its potential to accomplish this requirement. It uses a defence technology assessment approach to analyse EoF situations experienced by Dutch ISAF forces in which the NLW is inserted. The analysis demonstrates that a range of contextual factors in the Afghanistan high‐risk environment tend to narrow down the window of opportunity for the NLW to help defuse the risk of unintended civil casualties. 相似文献
28.
公寓房是我军住房保障体系的重要组成部分,其中又以小户型公寓房为主体,加强小户型公寓的设计研究对提高其保障效能具有现实意义。解读军队公寓住房建筑设计方案竞赛一等奖作品,指出小户型公寓采用一梯两户多层的形式在营造营区环境、降低建筑全寿命费用、改善室内舒适度等方面具有比较优势;应合理分配小户型公寓房面积,适当提高卫浴和厨房所占面积比例,控制客厅和卧室规模;应在门厅空间布局与卫浴空间分室设置、储藏空间多样化、布置多用途小空间、管井集中出户等方面提高设计的精细化程度。 相似文献
29.
针对由源节点和单个中继节点形成的协同正交频分复用( OFDM) Alamouti空时块码系统,分析了放大前传(AF)模式下的系统容量,给出了解析表达式.考虑节点功率独立约束的应用场景,提出了分步迭代的功率分配算法( SIPAA)来提高系统容量.该算法的核心思想是在每次迭代中,分步对源和中继节点分别进行注水功率分配,注水... 相似文献
30.