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Aleksi Ylönen 《African Security Review》2013,22(3-4):245-252
ABSTRACTOn 9 July 2018, Ethiopia and Eritrea signed a historical agreement pledging to end their mutual animosity and work for peace. The unprecedented rapprochement was facilitated by the new leadership in Ethiopia, merging interests between the two states and external mediation. This commentary looks into Ethiopian Prime Minister Abiy Ahmed Ali’s early reform initiatives and the dynamics of the rapprochement between Ethiopia and Eritrea. 相似文献
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介绍了一种新建的适用于生物效应研究的高场强电磁脉冲(EMP)模拟器,描述了其工作原理、设计参数。调试结果表明,此模拟器达到了设计要求,且性能稳定。动物实验已初步表明,高场强EMP可致大鼠中枢神经系统血液循环障碍,神经细胞变性,突触结构模糊等改变。 相似文献
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为了实现脉冲形成线的小型化,从基本原理入手,提出了一种带状Blumlein线的折叠设计思路,并给出了相应的工作参量和几何尺寸及制作工艺要求。 相似文献
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建立了惰性气体中电爆丝爆炸激励的冲击波模型。对于冲击波马赫数与光辐射强度的关系、惰性气体种类对冲击波强度的影响以及电爆丝根数对冲击波强度的影响,进行了理论计算与分析,所得结论对红外脉冲强光辐射源的研究有重要作用。 相似文献
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Bengt Klefsjö 《海军后勤学研究》1984,31(2):301-308
In a recent article, Chandra and Singpurwalla have pointed out the close relationship between the Lorenz curve, which is frequently used when illustrating income distributions in economics, and the total-time-on-test transform (TTT transform), which has proved to be a very useful tool in reliability. They also presented some characterizations of aging properties by using the Lorenz curve. The purpose of this article is to point out some further results in the same area and to give reliability interpretations of some common measures of income inequality. 相似文献
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An extensive literature on the effect of military expenditures on economic growth yields conflicting results. However, a crucial issue that has not been investigated in this context is the possible effect of inequality. The impact of military expenditures on economic growth in Turkey has also received substantial attention. Yet, the majority of these studies are not constructed based on a structural model, but rather examine the causality between the variables in question. Considering these two shortcomings in the literature and the lack of consistent results, this study attempts to provide further evidence for the relationship between military expenditures and economic growth for the case of Turkey by considering income inequality within an augmented Solow growth model. Our findings for the 1963–2008 period show that while income inequality has a positive impact on economic growth, military expenditures have no significant effect. 相似文献
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We present a robust optimization model for production planning under the assumption that electricity supply is subject to uncertain interruptions caused by participation in interruptible load contracts (ILCs). The objective is to minimize the cost of electricity used for production while providing a robust production plan which ensures demand satisfaction under all possible interruption scenarios. The combinatorial size of the set of interruption scenarios makes this a challenging problem. Furthermore, we assume that no probabilistic information is known about the supply uncertainty: we only use the information given in the ILC to identify an uncertainty set that captures the possible scenarios. We construct a general robust framework to handle this uncertainty and present a heuristic to compute a good feasible solution of the robust model. We provide computational experiments on a real‐world example and compare the performance of an exact solver applied to the robust model with that of the heuristic procedure. Finally, we include the operational impact of interruptions such as “recovery modes” in the definition of the uncertainty set. © 2013 Wiley Periodicals, Inc. Naval Research Logistics, 2013 相似文献