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1.
《价值工程》2016,(13):110-112
本文通过对B-6608飞机航前货运人员无法正常打开前货舱门原因进行分析,同时对A320系列飞机货舱门电控系统原理及货舱门液压系统进行介绍,提出了货舱门日常打开时应注意的事项。  相似文献   

2.
轮对是铁路货车行走过程中重要的构件,轮对故障导致的安全事故会给铁路运输造成严重的损失。文章从目前国内外主流采用的货车轮对自动检测技术的原理入手,首先总结了货车轮对自动检测技术的现状,其次针对具体实践要求设计了一种可自动检测铁路货车轮对参数的系统,并对其工作原理进行了初步分析,最后对自动检测技术的应用进行了展望。  相似文献   

3.
针对绵阳机场航班地面保障流程构建AOE—网,求出"关键路径",结合A-CDM记录得到航班保障流程中的"关键延误作业",并通过Apriori算法对"关键延误作业"进行关联规则分析,最终得出造成航班保障累积延误的主要原因。计算结果表明,为提高航班正常性,绵阳机场应在地面保障中应着重监管廊桥/客梯车到位、旅客登机、客舱门关闭、廊桥/客梯车撤离这几项保障作业的进程和关联性。  相似文献   

4.
《价值工程》2019,(28):253-255
某型机作动筒在未进行指令操纵时,出现作动筒意外开锁,导致舱门空中打开故障现象,本文通过对作动筒开锁控制系统进行分析,明确故障发生机理。  相似文献   

5.
陈华坪 《价值工程》2014,(29):66-67
本文介绍了737NG TRU(变压整流装置)在电源系统中的作用;对整个电源系统中的直流部分进行阐述,对TR UNIT故障灯点亮造成的原因进行分析总结,结合实例讲述排故过程,希望能为飞机维护行业排除该类故障提供一些帮助。该类故障按MEL不能保留放行,经常造成航班延误,希望通过对该类故障的深入分析,能准确快速地排出故障,减少航班的延误。  相似文献   

6.
对配电网故障定位技术方法研究的重要意义进行阐述后,对配电网故障定位方法进行了归纳总结,重点分析了短路故障定位技术方法和接地故障定位技术方法的工作原理和技术特点。最后,对基于GSM技术的配电网故障自动定位系统的逻辑组成和工作原理进行了认真分析研究。  相似文献   

7.
B737NG系列飞机经常出现操纵系统的扰流板升起,收回困难的报告。B737NG系列操作系统扰流板故障频频发生,导致飞机无法放行的主要原因分析和探讨,以及采取的改进纠正措施。避免或减少因为扰流板操纵困难的故障,延误航班或取消航班,使飞机运行平稳正常。  相似文献   

8.
谢福  胡健翔  姚冰 《价值工程》2023,(14):110-112
飞机空调系统是航空器非常重要的一个系统,飞机空调系统故障直接影响航班正常运行,这给航空公司带来巨大的成本压力,因此研究飞机冲压空气全开灯亮故障故障是非常有必要的。为了分析飞机冲压空气全开灯亮的原因,通过对不同的故障现象进行分析,以波音维修手册维修方法为基础,结合空调系统冷却原理,建立了完整的基于各个故障现象排故方式。本文B737-800飞机冲压空气全开灯亮故障故障为例,根据故障现象给出了不同的排故方案:(1)短时出现冲压空气全开灯亮,根据空调冷却原理可知热交换器脏导致的;(2)在地面对空调附件组件(AUAC)进行测试,有故障代码的,根据故障代码进行排故;(3)AUAC无任何代码,是冲压空气排气单向活门故障引起的。实践证明,该方法可以有效的运用在B737-800飞机航线排故中。  相似文献   

9.
石坚 《上海质量》2005,(12):49-51
上海国际机场股份有限公司机电通信分公司的主要业务是负责浦东机场航班显示系统、离港系统、门禁系统、安保系统等22个弱电系统的维护维修以及系统的运行保障。系统、设备故障的报修等待和不能及时处理都会引起用户的不满,对用户的工作骚航班生产运营带来一定的影响,还会增加返工返修的发生,增加重复维修造成人力浪费等情况,严重的还可造成航班延误。  相似文献   

10.
文章首先介绍了离心式压缩机干气密封的工作原理,接着结合当前的离心式压缩机运行原理对离心式压缩机运转过程中发生的典型故障进行了分析,最后总结了离心式压缩机发生故障的原因,并对其原因进行讨论,以此为我国今后的压缩机运行及故障检测维修提供可行性参考。  相似文献   

11.
This paper outlines the ICT statistical developments that the ABS has undertaken over recent years. These developments have been on both the supply side (ICT industry) and the demand side (use of IT by sector). The content of ABS ICT surveys has changed significantly over the last few years and are expected to develop further in line with industry changes and emerging policy needs.
Recent developments in household collections have been the inclusion of IT use questions in the 2001 Census of Population and Housing and in various ABS social surveys such as Children's Participation in Culture and Leisure Activities. Annual business IT use surveys are now conducted and include topics such as Internet commerce and IT security. Biennial ICT industry surveys are conducted to provide data on ICT production, imports and exports, ICT industry employment, performance and structure information. An Internet activity survey is run every six months and provides regional Internet access details and infrastructure details on Internet service providers.
A major development for 2002–03 will be the compilation of an ICT satellite account. ABS intends to produce an ICT Information Development Plan to guide its future statistical development work in the ICT field.  相似文献   

12.
Several US counties and local governments have recently considered a novel solution to the foreclosure crisis. They plan to use eminent domain to compel the owners of mortgage debt—and specifically of private‐label mortgage‐backed securities—to sell the debt to the government at a price reflecting the loan's market value. The government would then restructure the debt and resell it to new investors. The plans are striking because—in contrast to both development‐driven eminent domain and the federal subprime bank bailout—they would force investors to assume asset devaluation and increased long‐term risk. Notably, the plans have emerged as an instance of financialization‐focused politics in suburbs and suburban cities of color, specifically majority‐black and ‐Latino/a suburbs. Local support for the plans, we argue, is rooted in the long‐term disinvestment of these ‘suburbs of exception', which became targets of subprime lending and eventually sites where the ‘financial exception' has been localized. But these demographic shifts, fragmentation and fiscal pressures have at the same time created a suburban political terrain in which the plans have gained their strongest political support.  相似文献   

13.
Serendipity – the notion of making surprising and valuable discoveries – plays a major role in the success of individuals and organizations alike. Previous research has established the importance of serendipity and identified important individual- and organizational-level antecedents. However, the literature has been dispersed and the boundaries of the concept have been blurry, leading to a lack of conceptual clarity and structure, and thus limiting validity and managerial actionability. Based on a systematic literature review, I synthesize existing management-related research on serendipity and explicate the emergence and composition of serendipity in the organizational context. I first identify three necessary conditions that differentiate serendipity from related concepts such as luck or targeted innovation: agency, surprise, and value. Then, I draw from the literature on sensemaking, event-based theorizing, and quantum-based approaches to management to conceptualize the process of cultivating serendipity in the organizational context as a process of enabling potentiality and materialization, and develop a multi-level theory of (cultivating) serendipity. This conceptualization contributes to our collective understanding of how, why, and when (i.e., under what conditions) organizations can leverage the value in the unexpected, which opens up fruitful avenues for further research.  相似文献   

14.
NGOs in Bangladesh have been recognized as effective change agents in the socio-economic arena throughout the world. Their contributions in micro credit, non-formal education and primary health care are widely known. NGOs play a significant role in society. NGO accountability, as a result, has become a critical issue. NGO accountability in Bangladesh has been examined here in relation to patrons, clients and themselves. Of the three relationships only accountability to patrons is in a near satisfactory state. Accountability to clients is handicapped by lack of opportunities of beneficiaries to participate meaningfully in NGO policy making. Accountability to themselves is adversely affected due to the adherence to a strictly hierarchical system and the influence of founding and charismatic NGO leaders.  相似文献   

15.
There has been much discussion regarding the possible decline and weakening of national systems of human resource management (HRM). Yet, culture and institutions are often cited as the major stumbling blocks to this outcome. Such constraints may dissipate in the analysis, particularly if ‘regional clusters’ are considered where geographic and cultural closeness and ‘openness’ to similar economic pressures exist. In such cases, it might be postulated that convergence in HRM will occur. We argue that China, Japan and South Korea represent such a cluster. This article examines these countries, to see if a degree of convergence is taking place and if it is towards an identifiable ‘Asian’ model of HRM. A model of change is presented that distinguishes between levels of occurrence and acceptance. Details of the development and practice of HRM in each country are then set out. The article ends with a discussion and implications section and a brief conclusion.  相似文献   

16.
A new Office for National Statistics was created in the United Kingdom in 1996 following a series of developments designed to strengthen the relevance and integrity of statistics. This paper describes these fundamental changes and sets out a blueprint for future progress. It also sets current developments in the United Kingdom in an historical and international context.  相似文献   

17.
We have considerable understanding of the obstacles that women engineers encounter and the reasons that they leave the field, but we know less about what enables them to remain. Adopting an interpretivist approach, this article examines how a group of British women engineers in two FTSE 100 companies account for “staying on” in their male‐dominated work settings. We delineate four specific forms of help that facilitate women's retention in the field. We argue that exposure to help leads to women developing a habitus that enables them to continue working in engineering. To conclude, we draw on our findings to outline HR practices that will facilitate supportive relationships in the workplace and pave the way towards developing more positive organisational climates.  相似文献   

18.
杨明 《价值工程》2012,31(7):16-17
物流业经过诸多年的发展目前已经成为最热门的行业之一,物流企业的注册数量也与日俱增,达到前所未有的规模。毋庸置疑,任何企业都希望自己迅速做强做大,并成为真正现代物流企业的典型代表,要实现这一目标一个首要问题就是要解决现代物流企业的发展观问题。  相似文献   

19.
丛广英  乔炜君 《价值工程》2010,29(6):245-245
大体积混凝土的裂缝问题是实际工程中长期困扰工程技术人员的问题,其控制技术的研究是混凝土结构研究的热点问题,具有重大的学术价值和潜伏的工程背景。  相似文献   

20.
This paper focuses on the fashion industry, one characterised by issues such as dramatic shifts in the scale and power of major retail buyers in the market, the advent of retailer own brands, and the nature of sourcing and supply chain decisions, issues that are increasingly global in nature. The aim of this research is to explore the nature of relationships between UK high street multiple fashion retailers and their contracted suppliers, many of whom are entrepreneurial firms by most definitions of the term. Four core themes emerge from the literature and provide a framework for the research, namely, power, process, partnership, and people. The research approach was qualitative, and conducted over a period of twelve months. The paper ends with an agenda for future research.  相似文献   

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