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61.
分析了战时装备调配保障决策的特点,运用模糊聚类分析法对装备调配保障对象进行了分组和优先级排序,以此为基础,运用目标规划法构建了战时装备调配保障决策模型,最后,通过实例验证了模型的可行性和有效性.  相似文献   
62.
《Arms and Armour》2013,10(1):40-52
Abstract

Scientifically analysing important artefacts from the site of historic battles is vital if the best information is to be retrieved from the field. A detailed knowledge of the specific equipment that was available to the combatants from a known battle is also required at a high level so that artefacts and fragments resulting from an historic battlefield archaeological survey can be recognised when found. Access to specialists from all walks of life is required throughout each battlefield-related project, from the fieldwork stages to the dissemination of information. The following paper discusses the importance of working alongside museums and specialists and gives examples of how the Towton Battlefield Archaeology Project has successfully worked with the staff at the Royal Armouries Leeds.  相似文献   
63.
基于ABAQUS有限元软件,采用主从接触算法模拟桩-土相互作用、修正剑桥模型作为土体本构模型,通过在桩顶施加竖向位移荷载以及合适的网格划分技术建立了较为符合压入管桩压桩实际的有限元模型。利用得到的有限元模型模拟了压入管桩压桩产生的挤土位移场,对不同泊松比时压入管桩单桩挤土位移场进行了对比分析。结果表明:不同泊松比时竖向和水平挤土位移场沿深度方向和径向的分布规律趋于一致;土体泊松比的变化会对压入管桩压桩产生的竖向和水平挤土位移场产生较大影响;泊松比越大,压桩产生的竖向和水平挤土位移越大。  相似文献   
64.
Information Management (IM) – the systematic ordering, processing and channelling of information within organisations – forms a critical component of modern military command and control systems. As a subject of scholarly enquiry, however, the history of military IM has been relatively poorly served. Employing new and under-utilised archival sources, this article takes the British Expeditionary Force (BEF) of the First World War as its case study and assesses the extent to which its IM system contributed to the emergence of the modern battlefield in 1918. It argues that the demands of fighting a modern war resulted in a general, but not universal, improvement in the BEF’s IM techniques, which in turn laid the groundwork, albeit in embryonic form, for the IM systems of modern armies.  相似文献   
65.
During the Nigerian Civil War (1967–1970), France chose to support Biafra, but only on a limited scale, providing mercenaries and obsolete weaponry to Ojukwu's regime. General Charles de Gaulle's assistance to Ojukwu was conditioned by the French military drawdown after 1961, the increased power of French secret services on the continent, and the interventions in Katanga (1960–1963), Gabon (1964) and Chad (1968–1972). France supported Biafra primarily to protect its former colonies from Nigeria, stop Soviet subversion and acquire an economic foothold in the oil-rich Niger Delta. De Gaulle chose a limited strategy for two reasons. If Biafra won the war, France would be Biafra's greatest ally. If Nigeria won the war, France could extricate itself from the situation relatively easily and re-establish relations with the Nigerian government, which is what ultimately occurred.  相似文献   
66.
十八大首次将经济、政治、文化、社会和生态五大建设并列,强调“五位一体”建设中国特色社会主义。由此,中国特色社会主义发展布局历经四个阶段,即:“一个中心,两个基本点”的战略布局,“三位一体”发展布局,“四位一体”发展布局,“五位一体”发展布局。“五位一体”总体布局是一个相互联系、相互协调、相互促进、相辅相成的有机整体,对于开创中国特色社会主义事业新局面意义重大,为到本世纪中叶基本实现社会主义现代化,提供了有力支撑。  相似文献   
67.
文化安全的关键在意识形态,意识形态领域中的关键问题是价值观掌控问题。作为文化传播的主要组成部分,网络舆情对文化安全的表层和深层结构都有重要影响。本文从文化安全视角下切入,结合新疆高校网络舆情调研,分析了文化安全面临的冲击与挑战,并提出了基于文化安全保障下的新疆高校网络舆情有效管理方式和路径。  相似文献   
68.
文娱领域综合治理是当下的文化热点,但与之相关的高校艺术学科教师的评价与考核机制建设却一直是被学术界忽略的问题。该问题不仅关乎高校教师评价与考核工作的整体进程、艺术学科的健康发展,还关乎国家文艺创作队伍的建设、文娱行业的天清气朗。本文认为艺术学科教师评价与考核机制是决定文娱领域艺人违法失德乱象的重要要素之一,科学、系统、规范的评价与考核机制有利于这一问题的解决。  相似文献   
69.
《防务技术》2022,18(11):2052-2064
The damage effects of fluid-filled submunition payload impacted by the kinetic kill vehicle (KKV) are investigated by simulations and ground-based experiments. Numerical simulations showed that the damage level and number of submunitions were significantly influenced by the diameter of the KKV compared with its length. Based on that, a high velocity penetrator formed by shaped charge explosion was used to simulate the direct hit experiment of a KKV impacting submunition payload. Experimental results demonstrated that the damage modes of submunitions mainly included the slight damage, perforation and total smash, showing a good agreement with the simulations. To understand the multiple damage modes of submunitions, the damage behavior of the submunitions in direct hit process were analyzed based on the AUTODYN-3D code. Numerical results presented that increased KKV diameter can increase the crater diameter and expand the damage volume, which will achieve a higher direct hit lethality. Further analysis indicated that there were other mechanical behaviors can enhance the damage to submunitions not lying in the KKV flight path, such as secondary debris kill, neighboring submunitions collision with each other, and high-speed fluid injection effect.  相似文献   
70.
《防务技术》2022,18(9):1552-1562
To further explore the damage characteristics and impact response of the shaped charge to the solid rocket engine (SRE) in storage or transportation, protective armor was designed and the shelled charges model (SCM)/SRE with protective armor impacting by shaped charge tests were conducted. Air overpressures at 5 locations and axial acceleration caused by the explosion were measured, and the experimental results were compared with two air overpressure curves of propellant detonation obtained by related scholars. Afterwards, the finite element software AUTODYN was used to simulate the SCM impacted process and SRE detonation results. The penetration process and the formation cause of damage were analyzed. The detonation performance of TNT, reference propellant, and the propellant used in this experiment was compared. The axial acceleration caused by the explosion was also analyzed. By comprehensive comparison, the energy released by the detonation of this propellant is larger, and the HMX or Al particles contained in this propellant are more than the reference propellant, with a TNT equivalent of 1.168–1.196. Finally, advanced protection armor suggestions were proposed based on the theory of woven fabric rubber composite armor (WFRCA).  相似文献   
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