半导体存储器及发展趋势

半导体存储器的容量和速度决策着计算机系统运行速度。目前CPU芯片18个月一更新，为了赶上这个速度，半导体存储器的发展也日新月异。     

Towards a complete real-time electricity market design

The general design for the real-time electricity market presented in this paper optimizes and prices both real and reactive power simultaneously in an AC setting, where all assets—generation, load and transmission—are allowed to bid and are financially settled at the locational price times energy consumed or produced. The result is that transmission lines are compensated for both capacity and admittance, providing incentives for efficient operation of transmission-related assets such as FACTS devices, if price-taking behavior is assumed. Losses are incorporated into the design and become an operating cost for transmission. The market design is shown to be revenue neutral and, under some assumptions, nonconfiscatory.      

Service procurement in manufacturing companies: Results of three embedded case studies

An increasing part of companies' purchasing expenditures is being spent on (business) services. At the same time, the interactive character of business services has so far largely been neglected in purchasing and supply management studies. The success of a service purchase is however established during the ongoing production and consumption of that service, which takes place in continuous interaction between buyer and seller.This paper investigates these ongoing interactive processes between buyer and seller after the purchase decision has been made. The specific focus is on services buying by manufacturers, since manufacturers' services spend increasingly encompasses services that eventually become part of the final offering to customers. This is expected to pose specific challenges for manufacturing companies, who have traditionally been involved with purchasing goods.Case studies into ongoing buyer-seller interaction are conducted at three manufacturing companies. Starting from a usage-based classification which contains four types of business services, four services are studied at each manufacturing company. The results show that indeed the different types of services can be associated with distinct patterns of ongoing interaction. Furthermore, the results provide initial support for the idea that having differentiated patterns of interaction contributes to successful ongoing service exchange.     

Commodity currencies

This paper looks at real exchange rate behavior by focusing on three OECD economies (Australia, Canada, and New Zealand) where primary commodities constitute a significant share of their exports. For Australia and New Zealand especially, we find that the US dollar price of their commodity exports (generally exogenous to these small economies) has a strong and stable influence on their floating real rates, with the magnitude of the effects consistent with predictions of standard theoretical models. However, after controlling for commodity price shocks, there is still a purchasing power parity puzzle in the residual. The results here are relevant to developing commodity-exporting countries as they liberalize their capital markets and move towards floating exchange rates.     

Regulating B2B online reverse auctions through voluntary codes of conduct

In response to real and perceived abuse by market makers, buyers, and sellers, some industry trade groups representing suppliers have developed voluntary codes of conduct, white papers, and other forms of guidance for online reverse auction participants. The intent of these guidelines is to improve both the reverse auction process and relationships between buyers and sellers. This paper examines the rationale for creating guidelines and codes of conduct, and examines their efficacy in regulating reverse auctions to achieve improved outcomes for market makers, buyers, and sellers. Data from primary and related secondary sources indicate that industry-specific codes of conduct and guidelines have not had a favorable impact.     

Accounting practices and professional power dynamics during a crisis

This paper examines how changes in accounting practices during a crisis can affect organisational dynamics between hospital managers and clinicians. Our theoretical framework applies a multi-dimensional concept of power (Hardy, 1996) – which distinguishes power over resources, processes and meaning – to a longitudinal case study of a public university hospital during a budgetary crisis. Based on interviews with managers and clinicians, three successive time intervals with distinct power constellations are identified. Initially, we identify a pre-crisis phase where management formally controls resources, which seems to have limited effects on clinician dominance because managers lack ‘processual power’ and ‘power of meaning’. Next, an implantation phase emerges whereby the introduction of mandated budget cuts triggers shifts in the distribution of power, such that managers acquire power by securing the collaboration of clinicians – a phenomenon which has tangible benefits in terms of enabling budget compliance and increased service provision. Finally, the third phase may be conceptualized as a fiscal pressure regimen whereby, when budgetary pressures intensify further, management's newly gained ‘power of meaning’ is eroded because management are now seen to pursue unrealistic demands. Drawing on research insights gleaned during each phase, our analysis contributes to extant literature in at least three ways. First, we present novel findings regarding the impact of crises-related applications of accounting practices on intra-organisational power constellations. Second, our work highlights how accounting practices help shape the understanding of crisis, which, in turn, impacts the distribution of organizational power and influences intra-organizational patterns of collaboration. Third, we find that awareness of the meaning power of accounting practices can help shape strategic action in crisis situations.     

利用PowerBuilder实现Excel数据的SQL Server导入及其处理

文章介绍了使用PowerBuilder编程软件,结合OLEObject技术和PowerBuilder的数据窗口,把Excel数据导入到SQLServer数据库的过程。     

以企业文化为切入点提高核心竞争力

企业文化是企业历史积淀下来的精神财富，是企业经营管理最深厚的底蕴。一个企业真正有价值、有魅力能够流传下来的东西，不是产品，而是它的文化。企业文化是提高企业核心竞争力的精神支持。以企业文化为切入点，提高核心竞争力，应注重企业精神与企业价值观的人格化，着眼于对国际企业的文化研究，注重企业良好形象的塑造。     

Assessment and selection of management consultants: A comparative cognitive study between small- and large-scale companies

This paper explores alternative ways of evaluating and ultimately hiring a generalist consultancy for short- and medium-term projects, and how this is shaped by the size of the clients’ company. What buying factors do managers of small and large firms have in mind when hiring consultants for their projects?Instead of employing surveys incorporating predefined buying factors based on what the researchers think would be important, a cognitive mapping methodology - the repertory grid technique - is applied to investigate the underlying phenomena. Using the repertory grid technique to draw mental models is a novel research technique within the supply management field. Recent behavioral supply chain management research found the behavior of managers to be critically influenced by mental models: the lenses through which managers perceive, simplify and interpret the world.Results show differences between the buying factors used in small- and large-scale companies: managers of large companies are more ‘reputation and outcome-oriented’ and managers of small businesses are more concerned with ‘how the services are rendered’. However, both constituents stressed the importance of expertise, quality and the relationship between the client and the management consultancy, although the character of such a relationship differed between small- and large-scale firms. Results also point out criteria that managers of small and large companies employ to discriminate between good and poor performing consultancies and to judge service delivery. The practical implications for both companies hiring consultancies and the consultancy companies are discussed. For consultancies, our findings can help tailoring their efforts to a differing clientele when marketing and selling their services. For companies hiring consultancies, fixating too much on particular buying factors may lead to biased decisions.     

基本养老保险筹资权行使主体的确定及其理论依据

基本养老保险筹资权的行使主体的确定问题,应从中央与地方政府财权划分的角度进行分析。我国地方政府行使基本养老保险筹资权存在不合理性,应建立由中央政府统筹的基本养老保险制度。