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1.
综合飞行器故障预测与健康管理系统(PHM)在飞行器中的有效应用可以同时实现对于飞行器故障的有效诊断与预测,从机载PHM系统、地面PHM系统及相应的通信系统进行分析,并且提出相应的故障处理与系统优化设计的策略。  相似文献   

2.
一、PHM技术的发展 (一)含义。 故障预测和健康管理(Prognostics and Health Management,PHM)技术以失效物理为基础,用于预测和评估产品(或系统)在实际环境中的可靠性。PHM技术作为实现系统基于状态的维修、自主式保障、感知与响应后勤等新思想、新方案的关键技术,受到美英等军事强国的高度重视和推广应用。  相似文献   

3.
石湘 《乡镇企业科技》2013,(21):261-262
目前,飞机系统的设计环境正面临复杂性、综合化、智能化等的挑战,对民用飞机系统的故障预测与健康管理系统的研究就显得极其重要,本文从故障预测与健康管理(PHM)的内涵以及主要功能着手,提出了飞机PHM系统的设计模型与注意事项。  相似文献   

4.
《价值工程》2019,(34):244-245
本文重点介绍了PHM技术对军港防护拦阻系统风险管理能提供的有利帮助。通过对PHM技术概念和功能的初步了解,分析了其在拦阻系统中应用的意义,并进一步研究了今后该如何将该技术运用到拦阻系统中去,面对的难点问题,最后还分析了该技术在拦阻系统应用上还存在的挑战。  相似文献   

5.
本文对传统的维修方式--事后维修的局限性进行分析,阐述了故障预测与健康管理的定义,故障预测与故障诊断的区别,故障诊断当前面临的问题,以及根据故障预测进行的预知维修。论述了PHM在系统级应用问题,故障诊断与预测的不确定性。  相似文献   

6.
自主式后勤保障系统体系研究   总被引:1,自引:0,他引:1  
介绍了自主式后勤保障的概念及组成要素,并与常规的后勤保障进行比较。然后对自主式后勤保障的两项关键支撑技术预测与健康管理系统(PHM)和联合分布式信息系统(JDIS)的原理、结构功能和技术特点进行了阐述。最后对自主式后勤保障的保障体系进行了描述。  相似文献   

7.
本文主要阐述了当前飞机数字化维修的关键技术,介绍了故障预测与状态管理系统(PHM)、便携式维修辅助装置(PMA)、交互式电子技术手册(IETM)、远程维修系统等系统,分析实施数字化维修的重要意义,对国内军用飞机数字化维修的建设现状进行总结,并对未来的发展方向和存在的问题提出了一些建议。  相似文献   

8.
要实现PHM和AL的关键核心技术就是故障预测技术,该项技术的研究是机械故障诊断研究当中的热点,所受到的关注也不断上升。而机械传动系统在我国的国防和生产当中被广泛的运用着,因此对于其的安全性和可靠性的要求很高。以下主要进行了机械传动系统关键零部件故障预测技术的研究。  相似文献   

9.
“刚当兵就想跑,到了兰州发了一件棉大衣,毛的,给了一缸子肉,我觉得可以了,吃饱了,也够本了,想回家了,就准备逃跑了,实际上还是怕吃苦呗。”  相似文献   

10.
商场在疯狂甩卖,其降幅和冷清堪比非典时期;出租车的空位多了,地铁公交却更拥挤了;公司的年终奖打折了,企业都在喊亏损;华尔街爆发危机了,全球的股市都在跌;公司晚会不办了,出国旅游取消了,皮草名车也不买了……经济危机真的来了。企业家们受影响了么?显然不会例外。央行行长的头发都白了,而更多企业家的头发都掉光了;有的企业家绝处逢生,东山再起,而有的从云端落下,光环尽失;有的企业家卷款逃  相似文献   

11.
The BRICS countries in general, and China and India in particular, are now widely regarded as the areas of the world likely to challenge the economic leadership of the United States (US) and the European Union (EU). A large part of this challenge will come from rapid technological catch‐up by China and India. Yet, despite a recent rise in interest, there is limited knowledge about how and where innovation takes place in these two leading emerging countries and to what extent the Chinese and Indian territorial systems of innovation differ from those in the EU or the US. In this article we explore the geography of innovation in China and India, concentrating on understanding key territorial‐level innovation trends by country, region and technology field, using the US and the EU as benchmarks. We find significant contrasts between the geography of innovation in China and India and that of the US and the EU. First, the degree of concentration of innovative activities in both countries is extremely high. Levels of agglomeration of innovation in the coastal provinces of China, as well as in Delhi and the South of India, significantly exceed the levels of agglomeration found in the USA and the EU. Secondly, China has witnessed a more rapid increase in the degree of concentration of innovation than India. We posit that the differences in the geography of innovation between, on the one hand, China and India and, on the other hand, between these countries and the developed world are rooted in different institutional settings, different systems of innovation and different national innovation strategies.  相似文献   

12.
陈思源 《城市发展研究》2011,18(11):110-114
社会管理和公共服务是现代城市的两大基本职能.保障城市公共安全,实施防灾减灾是城市履行管理与服务职能的重要内容.首先,综述国际城市防灾减灾的合作和研究的主要进展;其次,基于城市生态经济系统特征,探讨城市灾害系统的结构功能和形成机制,分析中国城市灾害风险的特征;再次,提出中国城市防灾减灾体系的建设战略,包括:确立城市安全发...  相似文献   

13.
王玲玲 《价值工程》2011,30(20):114-115
预算外资金是我国特有的财政概念,是在财政管理体制改革和发展过程中逐步形成的,在历史各个时期都为国家经济建设和社会事业发展起到重要作用。但由于受传统经济以及市场经济的共同影响,近几年来预算外资金管理中出现很多问题,并且有些问题已经发展到非常严重的程度,造成了政府财政财力的过度分散,政府公共分配秩序的混乱等。因此随着改革开放的不断深入,预算外资金的不断扩大,越应采取相应的措施,引导和强化预算外资金的管理,使之能为促进社会各项事业的发展和改善人民的生活起到积极的作用。  相似文献   

14.
外商投资我国服务业:现状与建议   总被引:1,自引:0,他引:1  
徐婧 《价值工程》2007,26(4):27-30
20世纪80年代以来,随着全球产业结构调整和国际分工的日益深化,服务业已取代制造业成为对外投资领域的主流。与此相适应,我国服务业吸收的外商直接投资也呈现快速增长的态势。但由于我国服务业发展滞后,服务体系不完善,法律法规不健全,一定程度上制约了我国对服务业外资的吸收和高效利用。文中对我国服务业在利用外商直接投资中出现的问题及其应对策略进行初步的探讨。  相似文献   

15.
刘乔 《价值工程》2012,31(18):42-43
随着我国社会经济的快速发展,城市对水的需求量增加,随之而来的水污染、浪费等问题的程度也在进一步加重,进而城郊地区也就面临着更严峻的水资源和水污染形势。针对这种现状,许多不同层面的学者对此进行了广泛研究。本文通过对城郊地区的水环境现状进行概括和探讨,讨论出现行管理体制和法律制度所存在的直接原因,提出了城郊地区水环境管理的改革方法。城郊地区是城市发展的最具有前景的区域,当下城郊地区水环境的现状十分不容乐观,所面临的水资源和水环境的问题更为普遍和严峻,城郊地区水环境所面临的复杂形势对加强城郊地区水环境管理、现行条列的改革提出了亟待解决的问题。  相似文献   

16.
The impact of the AIDS epidemic in developing countries, and in Africa in particular, is now a matter of great concern to policy makers, managers, and academics on a global scale. The magnitude of the potentially disastrous effects of the disease has severe implications for management in organizations, and, in particular, for HRM. The AIDS epidemic is imposing, and will continue to impose, in the foreseeable future, a significant burden on the way people are managed. Little has been written on HRM in Africa, and the present literature on AIDS and HRM in Western societies is inappropriate and insufficient in relation to African organizations. Fifteen organizations in Tanzania took part in this study, which is probably the first of its kind, to produce a picture of current developments and approaches in managing people under the threat of AIDS.  相似文献   

17.
The purpose of this article is to provide an overview on the state of research in the field in human resource management (HRM) issues in multinational corporations (MNCs) in and from China. We integrate previous studies from multiple disciplines to articulate the contextual importance of research on this topic, and suggest overarching themes to expand the field of research. HRM research in the intercultural, interinstitutional context of MNCs in and from China has the potential to provide contextualized insights for longstanding debates in the field such as HRM standardization versus localization and convergence versus divergence and contextual factors behind these patterns. To this end, we call for future research to center on the changing cultural, institutional, technological, and globalization context in understanding HRM and industrial relations issues in these MNCs. Practically, knowledge in this area can help global managers and top management teams in multinational organizations navigate various context complexity, foster more productive coordination and cooperation across borders, and gain legitimacy and MNCs in and from China additional competitive edge in the global marketplace.  相似文献   

18.
The present study investigated the effect of culture on a much-prescribed management practice, that of employee participation in decision making. A survey was conducted among employees from two countries culturally distinct in the dimensions of power distance and individualism, namely Canada and the Philippines. Given eight decision-making scenarios that varied in terms of whether voice and/or choice was given to the employee and in terms of the importance of the outcomes, the respondents were asked about their perceptions of fairness of the procedures and outcomes, satisfaction with the procedures and outcomes, and preference for the decision-making procedures. Results show a highly significant country decision-making mode outcome importance interaction effect, but not in the directions expected. Overall, the Philippine sample registered more positive reactions to participation in decision making, although the Philippines' higher rank in power distance and lower rank in individualism than Canada seem to indicate otherwise. The results, together with a previous study conducted in high power distance-low individualism Mexico, forcefully suggest that employee participation in decision making may be successfully transferred.  相似文献   

19.
Following the waves of corporate scandals and the increasing attention to corporate governance, the transparency of reporting on director-level pay has increased across Europe. This article examines the extent of convergence in laws, codes and corporate reporting practices in regard to director-level pay in France, Germany, Switzerland and the UK. The paper analyses annual reports and the websites of 23 companies, using institutional theory to discuss the coercive, normative and mimetic pressures for convergence that are revealed, not just in the laws and codes in each country, but also in the standardized wording in the relevant sections of reports which have become clichés.  相似文献   

20.
基于公共治理的视角,从我国城市固体废弃物管理中的"遗留旧账"、治理意识、治理动力、技术水平、整体规制与管理等方面,详细解析了目前我国城市固体废弃物管理中的缺失和困境,并借鉴发达国家废弃物管理中形成的"完整的管理体系"、"管理过程一体化"等先进的经验,从法律、技术、管理层、企业、社会意识等诸多层面,构建我国城市固体废弃物系统化处理的管理范式,这对于改变我国现有的城市固体废弃物管理体制、促进城市循环经济的发展有着重要的意义。  相似文献   

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