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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.
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.  相似文献   

12.
When sampling a batch consisting of particulate material, the distribution of a sample estimator can be characterized using knowledge about the sample drawing process. With Bernoulli sampling, the number of particles in the sample is binomially distributed. Because this is rarely realized in practice, we propose a sampling design in which the possible samples have a nearly equal mass. Expected values and variances of the sample estimator are calculated. It is shown that the sample estimator becomes identical to the Horvitz–Thompson estimator in the case of a large batch-to-sample mass ratio and a large sample mass. Simulations and experiments were performed to test the theory. Simulations confirm that the round-off error due to the discrete nature of particles is negligible for large sample sizes. Sampling experiments were carried out with a mixture of PolyPropylene (PP) and PolyTetraFluorEthylene (PTFE) spheres suspended in a viscous medium. The measured and theoretical variations are in good agreement.  相似文献   

13.
This article compares the practice of and attitudes towards performance appraisal for managerial and professional staff in Hong Kong and Britain, and considers the extent to which actual practice and employee preferences are in alignment. Findings suggest that appraisal may be more widespread in Hong Kong than in Britain. However, British appraisal tends to be more participative and to place greater emphasis on discussing objectives, development and career plans. Hong Kong appraisals appear to be more directive and Hong Kong respondents perceive a higher level of 'negative' appraiser behaviour. In spite of this, Hong Kong respondents show if anything slightly more confidence in the utility of appraisal than do British respondents. They show stronger support for appraisal's use for reward and punishment and less support for the objectives-setting and training and development uses than do the British sample. Hong Kong respondents are more likely than their British counterparts to favour involving a more senior manager in appraisal, and they are less likely to prefer more frequent appraisals. There was little evidence that Hong Kong respondents had a stronger preference for group-based appraisal criteria, although they did show more support than the British sample for the use of personality as a basis for appraisal. Overall, the suggestion is that appraisal has been adopted in Hong Kong organizations but that the practice of appraisal has been adapted to suit the cultural characteristics of the society.  相似文献   

14.
Expatriate experience is not only a disconnected occasion for cross-cultural anxiety and adjustment but also an important event in the process of self-development and learning. Following this view and arguing for a discursive approach, the paper focuses on ways in which expatriates themselves tell and interpret their development and movement across expatriate career cycle. Meaning systems connecting expatriate job with previous and following work experiences in career stories of Finnish engineers and managers were identified using a combination of narrative and discourse analysis. No evidence was found of an autonomous expatriate discourse but, in contrast, expatriate career cycle was narrated using available organizational repertoires of development and career. Describing and discussing the meaning-making properties of three identified discourses - bureaucratic, occupational and enterprising - the paper emphasizes the organizational environment of expatriate experience while acknowledging the limits of these contemporary career vocabularies in addressing individual learning and change in cross-cultural settings.  相似文献   

15.
The paper explores the increasing popularity of the Internet technology Singapore. It argues that the diffusion of Internet technology to South-East Asia would create new duties and responsibilities for human resource (HR) managers. One such duty is the identification of the skills which professional Internet staff would need to perform their work effectively in organizations. Using a triangulation research method, empirical study has identified the new professional Internet jobs which have emerged the IT industry in Singapore and the skills that professional Internet personnel require do their jobs effectively. Analysis of the findings indicates that professional Internet skills involve both technical and creative abilities and that, in explaining or defining professional Internet skills, it is necessary to use both the technical and the social conceptions of skill. This argument is based on the view that the creative skills include tacit skills so that a definition based solely on the technical conception of skill cannot capture the various dimensions of Internet skills. The implications of the research findings for human resource managers are raised.  相似文献   

16.
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.  相似文献   

17.
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.  相似文献   

18.
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.  相似文献   

19.
关于高校教学秘书工作的认识与思考   总被引:2,自引:0,他引:2  
王巧文 《价值工程》2010,29(1):114-116
教学秘书在教学管理中起着举足轻重的作用,本文结合自己近6年从事教学秘书的工作实践和体会,阐述了高校教学秘书的工作职能和工作内容,提出了教学秘书应具备的素质,分析了日前教学秘书工作中存在的问题,探讨了教学秘书工作改进的方法与途径。  相似文献   

20.
Some labels have dire consequences. This article takes issue with the labels commonly used to describe the physical and social location of communities living on the edge of Port Vila, Vanuatu—labels that position communities for eviction by entrenching tropes of informality and peripherality into how they are seen and represented. Such terms include informal, settlement, informal settlement, squatter and peri-urban. Based on interviews with around 100 people and two years of ethnographic engagement with urban communities in Port Vila, Vanuatu, I critique the language of policy against the lived experience of those at the urban edge. I use Bourdieu's articulation of power as an accumulation of symbolic capital that enables one to speak the world into being. I conclude that the language of policies and plans is reflective of a dominant discourse in urban studies and international aid, and non-reflective of the experience and identities of people living at the urban edge. My interviewees and interlocutors maintain their identities as sister communities—as places grounded in the formality of customary tenure, and as part of the city rather than outside it.  相似文献   

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