CFM56-5B发动机启动失速故障分析

本文通过CFM56-5B发动机在启动过程中出现"ENG 1 START STALL"故障信息(非高原机场)排故全过程进行分析,提出了对启动过程中出现"ENG 1 START STALL"故障信息(非高原机场)排故建议和维护提示。     

CFM56-5B发动机点火系统维护与故障分析

制定合理有效的维修方案,是保持航空器安全性和经济性的重要手段。本文通过CFM56-5B发动机在启动过程中点火不成功的案例,对发动机点火系统进行了详细的介绍。结合公司近年来的维修记录和厂家维修手册,提出了对发动机点火系统的排故建议和维护提示。     

CFM56-7B发动机防冰系统浅析

本文主要以波音737NG(CFM56-7B)飞机为例,通过对发动机结冰形成原因及危害的介绍,阐述了发动机防冰的重要性,同时对发动机防冰系统的工作原理,相关部件的失效模式做了详细的分析,并针对该系统在航线维修工作中经常发生的故障提出了排故建议。     

CFM56-3发动机滑油压力故障分析

文章根据CFM56-3发动机滑油系统的结构与功能,参照AMM手册中滑油系统的低或者没有滑油压力故障排故流程图进行分析,找出故障发生的可能原因并举例介绍,分析解决方案;以故障树的形式展示出现低或者没有滑油压力的基本故障事件,根据故障可能原因及故障树重要度概念,分析得到排故流程的由来与合理性。     

CFM56-7B发动机滑油渗漏及耗量监控简析

本文主要针对CFM56-7B发动机高滑油消耗率故障,对易导致滑油渗漏的相关部件进行了简要分析,并结合重庆维修基地的实际维护经验,介绍了日常发动机滑油消耗率的监控方式方法。     

CFM56-5B发动机燃油系统典型故障分析

当今航空业和民用飞机中使用的高新技术越来越多。为了提高客机的远距离飞行和载客量,航空发动机性能不断提高,发动机产品不断升级换代,原理和结构也变的更加复杂,这些都为航空发动机的维护和故障的排除带来更大的挑战。本文主要以民航燃气涡轮发动机为例,对民用航空燃气涡轮发动机的工作原理、基本结构以及相互之间的气压流动和平衡进行了讨论。接着笔者通过调研文献和查阅书籍,对基于CFM56-5B系列发动机的飞机发生渗漏典型故障时的特征进行了了解,如发生燃油渗漏的主要原因包括由于气温的变化、部件的磨损和航线机务维护不当等原因。分析了如何快速准确诊断出发生故障的零件。最后讨论了发生某种故障时的应急措施和针对该系列发动机燃油系统的预防措施。     

波音737-700/800型飞机发动机引气系统及其故障分析

本文针对波音737-700/800型飞机发动机引气系统工作原理及常见故障现象和原因,并结合实践提出一些系统的排故方法。     

浅谈发动机引气系统健康测试

本文通过对737NG发动机(CFM-7B)引气系统健康测试介绍为出发点,结合国航重庆维修基地自2009年6月开始引入发动机引气系统健康测试至今的实际排故经验,对于该套系统的使用进行系统的介绍,供大家进行参考。     

浅谈CAB/UTIL和IFE/PASSSEAT电门

B737NG飞机P5-13电源面板存在两种构型,"CAB/UTIL"和"IFE/PASS SEAT"属于新构型中的两个电门,本文在结合手册与实际现象的基础上,分析了这两个电门的功用,避免在将来的排故过程中走弯路。     

装配刚度不均匀性对航空发动机整机振动的影响

航空发动机整机振动故障是发动机工作中较为常见和危害较大的故障。转子装配刚度是柔性转子必须要保证的基本要求,而刚度的均匀性提及较少。本文通过实例对发动机振动故障的排除过程进行分析,得出了刚度不均匀性对发动机振动故障有较大影响,对航空发动机整机振动故障的排故有一定参考作用。     

Development in Information and Communications Technology (ICT) Statistics at the Australian Bureau of Statistics

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.     

Value at Risk in the Suburbs: Eminent Domain and the Geographical Politics of the US Foreclosure Crisis

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.     

Towards a Theory of Serendipity: A Systematic Review and Conceptualization

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.     

Accountability of NGOs in Bangladesh A critical overview

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.     

Towards an Asian model of human resource management? A comparative analysis of China,Japan and South Korea

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.     

Ansätze und Ergebnisse anglo-amerikanischer M&A-Forschung

Based on a review of established U.S. management journals (1995–2003), six schools of thought are identified within the Anglo-American M&;A research: “Capital Market”, “Principal/Agent”, “Industrial Organization”, “Organizational Behavior”, “Human Resources” and “Strategic Management”. The literature review shows that the definition of M&;A success, the methods applied, and insights from empirical research differ according to the respective school of thought. Empirical studies focus on the resource combinations of merger partners, the specific circumstances of merger negotiations, and on integration management as antecedents of merger performance. Unfortunately, empirical findings have not yet provided reliable explanations for M&;A success. Based on the current state of Anglo-American M&;A research, the authors discuss implications for business practice, identify research gaps, and propose areas for future research.     

Introduction of New Technology with a Sound Transition of the Input-Output Structure

We examine the general equilibrium repercussions associated with the introduction of new technologies, using the generalized Leontief system that allows technological substitutions. We show that an untested introduction of cost-increasing technologies in any industry may result in creating a non-productive technological structure that does not satisfy the Hawkins-Simon condition, following the autonomous dynamic adjustment process with structural transitions in the economic system. Therefore, we propose a practicable control scheme of introducing cost-increasing technologies that strictly avoids the creation of non-productive structures in all periods of structural transition, using the available information on the ex ante technological structure.     

The Creation of the Office for National Statistics

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.     

What helps? Women engineers' accounts of staying on

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.     

论现代物流企业的发展观

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。