汽车发动机再制造行业运作模式初探

文章以汽车发动机为例,对国外较常见的运作主体分别为原始制造商(OEM)、独立再制造商(IR)、零散小型再制造商(SSR)的三种发动机再制造运作模式进行简单的介绍,然后对这三种模式在产品价格、规模效应以及市场需求方面进行比较,最后得出适合我国当前发展需要的发动机再制造运作模式。     

我国汽车零部件再制造现状与发展研究——以发动机再制造为例

本文阐述了国内外再制造汽车发动机等零部件产品的现状,根据我国汽车保有量、增长率、再制造利用率等因素预测我国汽车发动机等零部件再制造的未来发展,并结合我国现行相关再制造政策法规,分析再制造带来的社会和经济效益.     

国家11个部委发文推进再制造产业健康发展

根据国家发展和改革委员会等11个部门日前公布的文件,我国将以汽车发动机、变速箱、发电机等零部件再制造为重点,把汽车零部件再制造试点范围扩大到传动轴、机油泵、水泵等部件。同时,推动工程机械、机床等再制造及大型废旧轮胎翻新。     

基于ANSYS的曲轴工作受力分析

曲轴被广泛应用于汽车行业中,是汽车发动机内重要的零部件之一,其品质好坏直接影响着发动机和整车的性能。本文首先应用三维造型Pro/Engineer软件对中型汽车用曲轴进行了三维实体建模,其次采用ANSYS协同分析平台对曲轴受四种不同载荷工况进行了有限元分析,得到了应力应变场分布情况,其曲轴分析结果可为曲轴设计提供一定的理论依据和参考。     

工业工程方法在发动机装配线的应用

一、配瓦工位改善工位介绍:EW发动机曲轴5个主轴径和4个连杆径在装配时,需要根据缸体主轴孔径、曲轴主轴及连杆轴径以及连杆孔的大小分级情况,进行选配合适的主轴瓦和连杆瓦。相应的分级代号分别刻在缸体、曲轴及连杆上,操作工在装配每台发动机时,都需要先     

再制造闭环供应链中品牌许可策略研究

考虑消费者对新产品与再制造产品支付意愿存在差异,以原制造商和第三方再制造商为研究对象,分别建立原制造商对第三方再制造商品牌许可和不许可策略的博弈论模型。通过对模型求解分析,研究了两种策略下新产品和再制造产品成本,消费者支付意愿对双方利润的影响,并通过数值仿真研究了原制造商许可的条件及第三方再制造商接受许可的条件。研究表明:当第三方再制造商进行再制造时,原制造商总会选择品牌许可策略;第三方再制造商只有在再制造产品成本较高或不接受品牌许可,并且再制造品的支付意愿明显低于品牌许可时,才会选择合作。     

基于EPR背景的再制造系统中的战略决策研究

本文研究了EPR背景下,再制造系统的战略研究问题。本文在竞争环境下,分析了再制造成本因素对于OEM再制造战略决策的影响。同时,本文引入了政府征收的企业生产责任延伸费用作为外生变量,基于EPR理论研究了政府收费对于OEM再制造决策的影响。结果表明,在OEM的再制造成本较高时,OEM并不乐意与进行再制造,由于迫于政府费用压力,而不得不进行再制造,而再制造于对第三方再制造商有利可图,因此提出了OEM选择与第三方再制造商合作的模式,实现闭环供应链中利益的最大化。     

再制造,潜力大

再制造,是对废旧产品实施高技术修复和改造的过程。再制造针对的是损坏或行将报废的零部件,在对其进行性能分析、寿命评估的基础上,采用一系列先进技术,可使其质量达到新品的水平。在欧美发达国家,再制造的汽车发动机已占维修配件市场的85%以上。美国是最     

浅谈汽车发动机曲轴的教学

曲轴是汽车发动机上重要的零部件之一,其性能的好坏直接影响整车的寿命,曲轴在发动机中承担着最大负荷和全部功率,承受着方向不断变化的弯矩及扭矩,也经受着高速运转中长时间的磨损。发动机曲轴的材料主要有球墨铸铁和锻钢两类,加工工艺分为粗加工、半精加工和精加工三个过程,对安装过程有非常严格的要求。     

汽车发动机缸体加工变形分析及精度控制

如今,汽车行业的发展已成为国民经济中的支柱产业,汽车制造水平将会直接体现一个国家的经济实力,因而汽车领域的开发研究已成为经济发展不可或缺的部分。作为汽车技术含量较高的组成部分,发动机缸体的加工,渐渐渗透于各大企业当中。发动机缸体是薄壁多孔的零件,对于其加工的各项程序精度要求极高,并且零件加工的优劣直接影响发动机的性能。文章主要针对在发动机缸体加工时产生变形的因素进行分析,以及对发动机缸体加工精度的控制。     

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.     

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。     

浅谈大体积混凝土裂缝的控制

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。     

Supply Chain Strategies in the UK Fashion Industry—The Rhetoric of Partnership and Realities of Power

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.