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。     

农用拖拉机维修与保养

一、拖拉机维修保养技术 1．排出高压油管磨损漏油故障。拖拉机高压油管两端的凸头与喷油器、出油阀接连处出现磨损漏油现象．可从废气缸垫上剪下一圆形铜皮，中间扎一小孔磨滑，垫在凸坑之间便可解燃眉之急。     

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。     

某发动机前支点回油泵典型故障分析及控制措施

飞机发动机前支点回油泵是保证飞机安全飞行的重要零部件,在运行中一旦出现故障,就可能威胁机上乘客的生命安全。某飞机发动机前支点回油泵在运行中常常出现回油泵齿轮与泵壳体刮磨损伤;回油泵卡滞导致传动轴断裂;回油泵齿轮螺旋头断裂等故障,本文旨在通过有效的故障维修控制措施降低前支点回油泵故障率,最大限度规避飞机安全风险,保证飞机安全飞行。     

PC220-8挖掘机发动机打不着火故障案例分析

本文就PC220-8挖掘机发动机在工作中曾出现过打不着火的故障实例,进行实例分析,为应对此种机型或类似机型的柴油电喷发动机进行此类故障的维修处理,通过数据及明显的故障现象,进行最终的故障判断,并通过适当的维修及时故障修复,避免因不熟悉,而造成设备故障得不到解决,造成长期误工。     

大功率泵用柴油机曲轴后油封磨损解决措施

通过具体案例,阐述了大功率柴油机配套水泵时出现后油封座磨损漏油、曲轴止推瓦磨损,最终导致机体及曲轴报废故障,分析了弹性套柱销联轴器、可变速及固定式发动机底座的工况,表述了柴油机与水泵安装的注意事项。     

丰田皇冠轿车发动机动力不足的维修

本文主要介绍一辆丰田皇冠轿车,由于用错发动机点火器,造成该车动力不足的故障,通过对故障现象进行分析、检测,找出故障原因并进行修复的过程.     

浅析电力变压器的保护措施

电力变压器的故障分为内部和外部两种故障。内部故障指变压器油箱里面发生的各种故障，主要靠瓦斯和差动保护动作切除变压器；外部故障指油箱外部绝缘套管及其引出线上发生的各种故障，一般情况下由差动保护动作切除变压器。现着重探讨一下电力变压器的保护措施。     

汽车消费涉电池故障虚假宣传等四大问题 中消协发布《汽车投诉情况专题报告》

<正>从5月8日中国消费者协会发布的2023年第一季度全国消协组织受理投诉情况分析及《汽车投诉情况专题报告》(以下简称《报告》)获悉，随着新能源汽车和智能网联技术的快速发展，汽车消费存在电池故障、虚假宣传、充电桩安装难、二手车车辆信息不透明等四大问题。涉车辆安全、电池故障等质量问题《报告》称，燃油汽车相关投诉主要有：一是与车辆安全相关的质量问题。如巡航定速功能故障、发动机或变速箱故障、刹车失灵、发动机漏油、车辆自燃等。二是与部件寿命相关的质量问题。     

摩托车使用维修小经验

修复油箱两法 摩托车油箱被碰瘪后,会严重影响车子的美观,使许多摩友感到“头疼”。这里提供两种修理方法,供朋友参考。 (1)油箱凹陷面积较大时,可采用冻胀法修复。即先将油箱里的汽油放净,把油箱从车架上卸下来,用水把油箱内外冲洗干净,再把油箱开关关闭,向油箱里面灌满清水,并把箱盖拧紧。而后把装满清水的油箱放进冷冻池里(冷库、冷藏厂及做冰棒、冰糕的地方都有这种池子)进行冷冻,并注意让凹陷的地方稍露出冷冻液面。冷冻的时间可长可短,一般在两三小时后凹陷处就能恢复原状。待油箱恢复原状后,将油     

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.     

Incumplimiento del salario mínimo en Europa central y oriental

En este estudio se analiza el incumplimiento del salario mínimo durante el periodo 2003–2012 en diez países de Europa central y oriental con salario mínimo obligatorio nacional. A partir de los datos de EU‐SILC y la metodología propuesta por Bhorat, Kanbur y Mayet (2013), se cuantifica la incidencia y magnitud del incumplimiento. Se realizan análisis de regresión sobre determinantes individuales, laborales y macroeconómicos. Aunque la incidencia permanece relativamente baja, los trabajadores a los que se dirigen las políticas de salario mínimo parecen los más expuestos a su incumplimiento. Con el tiempo, una mayor incidencia se asocia a una razón más alta entre salario mínimo y salario medio.     

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.     

Cultural Economy Planning in Creative Cities: Discourse and Practice

While a growing body of research analyses the functional mechanisms of the cultural or creative economy, there has been little attention devoted to understanding how local governments translate this work into policy. Moreover, research in this vein focuses predominately on Richard Florida's creative class thesis rather than considering the wider body of work that may influence policy. This article seeks to develop a deeper understanding of how municipalities conceptualize and plan for the cultural economy through the lens of two cities held up as model ‘creative cities’ — Austin, Texas and Toronto, Ontario. The work pays particular attention to how the cities adopt and adapt leading theories, strategies and discourses of the cultural economy. While policy documents indicate that the cities embrace the creative city model, in practice agencies tend to adapt conventional economic development strategies for cultural economy activity and appropriate the language of the creative city for multiple purposes.     

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.     

Input/output ranges and performance: an examination of US machine tool producers

Despite the establishment of high-tech multinational enterprises (MNEs) in Ireland since the late 1950s, the country did not succeed in closing the technological gap with most of its EU counterparts. The weak National System of Innovation (NSI), and in particular low business and government R&D levels, combined with a lack of research and technology linkages between MNEs and indigenous firms, explain these poor results. However, the Shannon region in the West of the country presents some specific institutional characteristics that could theoretically make the region a strong technological enclave. The various actors in the region - i.e. the administrative, financial, political and research institutions, as well as the business organizations - have indeed infused a new type of economic development. After a brief review of the available concepts and models articulated around these actors and their interrelationships, the paper analyses whether the Shannon region, taken as an illustrative example, mirrors a specific economic and technological localized setting. The study is based on a survey of indigenous and foreign firms.     

Sixty years of discrimination and diversity research in human resource management: A review with suggestions for future research directions

This article reviews discrimination and diversity research published in Human Resource Management (HRM) over the past 60 years. While discrimination and diversity are very different constructs, it is often informative to study them together, because when people recognize each other's diversity, this can result in bias, stereotyping, and discrimination. We conducted bibliographic searches for terms related to discrimination and diversity as well as a manual search through every title and abstract published in HRM over the last 60 years to assess article relevance. The search resulted in 135 research articles with 136 unique studies (i.e., samples) which are reviewed in this article. Sex and race are the demographics that have been examined the most in HRM, while religion has been examined the least. Moreover, the number of studies examining lesbian, gay, bisexual, transgender, and queer (LGBTQ) employees in the workplace in HRM has grown quickly within the past 10 years, culminating in a recent meta‐analysis. Our review looks at some of the earliest research published, the most recent research published, and the overall trends we identified in the research over the years for both discrimination and diversity articles. We then make future research suggestions and recommendations to advance the study of discrimination and diversity in the coming years.     

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.     

The Early History of the Cumulants and the Gram-Charlier Series

The early history of the Gram-Charlier series is discussed from three points of view: (1) a generalization of Laplace's central limit theorem, (2) a least squares approximation to a continuous function by means of Chebyshev-Hermite polynomials, (3) a generalization of Gauss's normal distribution to a system of skew distributions. Thiele defined the cumulants in terms of the moments, first by a recursion formula and later by an expansion of the logarithm of the moment generating function. He devised a differential operator which adjusts any cumulant to a desired value. His little known 1899 paper in Danish on the properties of the cumulants is translated into English in the Appendix.