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排序方式: 共有193条查询结果,搜索用时 15 毫秒
61.
Andrew S. Erickson 《战略研究杂志》2014,37(3):372-402
AbstractThis article surveys China’s current naval forces and considers key dynamics and possible Chinese naval futures to 2020, the projected end of Beijing’s ‘strategic window of opportunity’, the idea that a peaceful external environment for economic development, globalization, and integration of China into the global economy allows China to benefit from diversion of US attention to countering terrorism. It considers broad possibilities through 2030, the general limit of public US government projections, and by which time multiple factors will likely slow China’s growth and compete for leadership focus and resources. 相似文献
62.
Alessio Patalano 《战略研究杂志》2014,37(3):403-441
AbstractThis article draws upon previously unavailable document materials to question views pointing to a degree of stagnation in Japanese maritime thinking. It similarly reviews claims about trends to compensate the decline of national military power with the build-up of projection capabilities. The article’s main argument is that Japanese seapower is not declining. The Japanese Navy is evolving to combine enhanced capabilities to retain sea control in the Sea of Japan and the East China Sea with extended operational reach and flexibility, including an expeditionary component to meet alliance and diplomatic commitments in East Asia and beyond its confines. 相似文献
63.
针对装备技术发展管理的重用度和冗余度问题,研究了体系网络建模与结构优化方法。将装备技术抽象为节点,技术关系抽象为边,提出了基于装备技术描述属性框架和技术关系分析的体系网络建模方法;将3种经典的网络社团探测方法应用于装备技术聚类,通过比较评估指标,生成了技术聚类优化方案;基于加权网络中心度算法,识别了对体系冗余影响最大的装备技术。以包含235项激光武器装备技术的技术体系为例,验证了方法的有效性,总结了体系结构的优化结论。 相似文献
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65.
Cedric Laguerre 《Defence and Peace Economics》2013,24(4):303-326
I demonstrate the existence of two sources of contestability in the military aerospace market, within producing and export countries, through the State’s triple role as unique buyer, regulator and seller. For the producing countries, I introduce the new concept, ‘sovereignty price’; that is, the profit a State agrees to grant to its defence firms to perpetuate their domestic activities. This subjective, evolutionary concept provides a dynamic character to the theory of contestable markets. Moreover, I show that contestability is more effective than antitrust policies and a solution of the cost disease. Empirical cases are shown to confirm the theoretical analysis. 相似文献
66.
Edward S. Cavin 《Defence and Peace Economics》2013,24(2):77-88
This paper investigates the potential for modeling and simulation to contribute to new defense system development, by increasing the productivity of traditional R&D in developing system‐specific technology. Building on a previous optimal control model of defense system R&D, it shows that (1) the optimal use of modeling is related in a natural way to that of traditional R&D, and (2) both have similar optimal profiles over time. Simulated results based on limited historical data suggest that optimal use of modeling could increase the rate of growth in system‐specific technology significantly. 相似文献
67.
LLOYD SACHIKONYE 《African Security Review》2013,22(3):31-44
This article revisits Zimbabwe's land question from the vantage point of having been written five years after the ‘fast-track’ land redistribution programme was launched. Without belittling the accomplishments of land reform in the first 19 years of the country's independence, it is generally clear that the sweeping programme of 2000–2003, the most comprehensive of its kind, created a new paradigm. Clearly, the consequences will take many years to work themselves out through the country's political, economic and social fabric. The article briefly defines what may be termed ‘old’ and ‘new’ versions of Zimbabwe's land question before outlining the salient aspects of the reform process itself. It then assesses the outcomes of the redistribution, the apparent lacuna between ‘land’ and ‘agrarian’ reform, and the debate that the reform process itself has kindled. Transforming land distribution into qualitative agrarian reform has proved an Achilles heel in the arguments put forward by the proponents of the fast-track programme. Finally, recommendations are provided as to what is necessary to secure land and agrarian reform in the short, medium and long term. 相似文献
68.
针对目前国内外仿真标准缺乏和零乱的现状对舰船综合仿真标准体系进行深入分析和研究,首先分析了国内外现状、我国舰船仿真领域的不足和仿真标准发展需求,接着对舰船综合仿真标准体系的技术思路、研究方法等做了初步性的探索,建立了舰船综合仿真技术参考模型,并据此初步建立了舰船综合仿真系统标准体系框架,用以指导制定具体的标准。 相似文献
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70.
在可视导航卫星数少于四颗、无法进行传统导航解算的恶劣环境下,导航接收机可利用外部高程气压计提供的高程或者内部守时模块的钟差等信息进行应急辅助定位。在该应急辅助定位工作模式的误差分析中,传统导航定位误差传递模型无法适用。针对此问题,本文在研究三星结合高程、三星结合钟差、双星结合高程钟差等几种应急辅助定位原理的基础上,给出了新的应急辅助定位误差传递的分析模型,利用仿真算例验证了该模型的正确性。通过对定位精度的分析,说明根据卫星分布特点可以按照本文方法量化得到伪距测量与辅助信息的精度的最优数量级关系,可以用最小代价实现定位精度的提升。该结论可指导接收机外部辅助器件的选择。 相似文献