排序方式: 共有33条查询结果,搜索用时 31 毫秒
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以线性和非线性需求结合方式建立了以满足任务需要为条件的海警大型舰艇基本需求组合模型,预测计算了多个样本国海警大型舰艇基本需求数,结果表明该模型有一定的实用性.据此对中国海警大型舰艇基本需求进行预测,预测结果可对中国海警大型舰艇发展规划提供参考. 相似文献
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文中总结了上海海事空中巡航一年来的实践,借鉴国内外相关单位的空中巡航的建设和运行情况,提出了海事部门空中巡航发展的一些建议. 相似文献
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Military ocean patrol vessels (OPVs) are today an increasingly common type of naval ship. To facilitate the wide range of tasks with small crews, OPVs represent several ship design compromises between, for example, survivability, redundancy and technical endurance, and some of these compromises are new to military ships.The aim of this study is to examine how the design risk control-options in relation to survivability, redundancy and technical endurance can be linked to the operational risk in a patrol and surveillance scenario. The ship operation for a generic OPV, including the actions of the threat, is modelled with a Bayesian network describing the scenario and the dependency among different influences.The scenario is described with expert data collected from subject matter experts. The approach includes an analysis of uncertainty using Monte Carlo analysis and numerical derivative analysis.The results show that it is possible to link the performance of specific ship design features to the operational risk. Being able to propagate the epistemic uncertainties through the model is important to understand how the uncertainty in the input affects the output and the output uncertainty for the studied case is small relative to the input uncertainty. The study shows that linking different ship design features for aspects such as survivability, redundancy and technical endurance to the operational risk gives important information for the ship design decision-making process. 相似文献
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文中从海上巡查执法的工作需求出发,分析了我国海上巡查执法工作的现状及存在的问题,并从五个方面提出了我国海上巡查执法工作的发展思路。 相似文献
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铁路信号设备巡检智能管理系统的设计 总被引:3,自引:0,他引:3
作者介绍了研制的铁路信号设备巡检智能管理系统在铁路信号管理中的作用.主要介绍了系统的功能、系统的硬件结构设计和软件结构设计.该系统作为一种科学化管理工具,能使信号维护管理科学化、规范化,对日常巡检工作起督促和监督作用;通过记录可发现各种事故隐患,从而有效地提高运输效率、确保运输安全. 相似文献
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在保障资源损毁后,将现有保障资源整合成机动保障小组,按照一定的机动路线巡回实施支援保障,可以最大限度的节省现存保障资源,提高保障效能。实施机动巡回的资源调度,需要确定机动保障小组的数量以及机动的路线,这类问题可归结为带约束条件的组合优化问题。应用蚁群算法建立了机动巡回保障优化数学模型,给出了算法的实现步骤。案例结果表明,该算法可以快速、有效求得巡回保障的优化解,得到巡回保障过程中的较优方案。 相似文献