电气互联技术的现状及发展趋势

简要介绍了国外电气互联技术的现状，从电路可制造性设计、堆叠装配、FPC组装设计与工艺、PCB可制造性分析及虚拟设计技术、微波电路互联结构及绿色清洗技术等7个方面分析了电气互联先进制造技术的发展方向。     

Factors influencing women's decision to leave an organization following childbirth

The purpose of this study was to understand the reasons why college-educated women leave organizations after childbirth. Results from 228 women who participated in a study of intention to work following childbirth indicated specific work and family factors that differentiated mothers who returned to work from mothers who stayed home after childbirth. Comparisons were also made between women who had a child and those who anticipated having a child. The findings are discussed in terms of their implications for organizational policy makers.     

Estimating Systematic Risk Using Time Varying Distributions

This article proposes a dynamic vector GARCH model for the estimation of time-varying betas. The model allows the conditional variances and the conditional covariance between individual portfolio returns and market portfolio returns to respond asymmetrically to past innovations depending on their sign. Covariances tend to be higher during market declines. There is substantial time variation in betas but the evidence on beta asymmetry is mixed. Specifically, in 50% of the cases betas are higher during market declines and for the remaining 50% the opposite is true. A time series analysis of estimated time varying betas reveals that they follow stationary mean-reverting processes. The average degree of persistence is approximately four days. It is also found that the static market model overstates non-market or, unsystematic risk by more than 10%. On the basis of an array of diagnostics it is confirmed that the vector GARCH model provides a richer framework for the analysis of the dynamics of systematic risk.     

Saving under uncertainty: A bivariate non-expected utility approach

We adopt the multivariate non-expected utility approach proposed by Yaari [1986] to provide a characterization of the comparative statics effects of greater risk aversion and of mean-preserving increases in risk on saving and borrowing in the presence of income and interest rate risk.We show that in Yaari's model, it is possible to extend the applicability of the Diamond and Stiglitz [1974] and Kihlstrom and Mirman [1974] (DSKM) single-crossing property to establish a relationship between greater risk aversion and saving (or borrowing) on the basis of the individual's ordinal preferences as long as the two risks are independent. We also demonstrate that the comparative statics effects of a joint mean-preserving increase in random income and interest rate on saving and borrowing can be determined by an extension of the DSKM single-crossing property.     

或有事项准则中的几个重要概念辨析

或有事项是一种结果不确定性的经济事项;或有资产是与或有事项相关的潜在资源,不予表内确认,通常也不予表外披露。或有负债是与或有事项相关的潜在义务(或特殊的现时义务),不予表内确认,但通常应予以表外披露。预计负债是因或有事项而确认的实际负债,应作为表内独立的负债项目予以确认,同时在表外披露相关信息。     

走出人民币升值的误区

对于人民币升值我们存在诸多误区,近期我国企业对人民币升值的无奈和冷漠的态度,正是这些误区的直接体现。从全球汇率整体发展趋势分析,人民币对外币的波动将向常态化发展,人民币不仅有升值的问题,也有贬值的可能。对此,我国企业必须要有一个清醒认识,并走出认识上的误区,否则不仅影响企业当前的经济利益,更涉及企业未来的生存与发展。     

《鲁迅全集》人民文学出版社2005年版小议

《鲁迅全集》人民文学出版社2005年版只收鲁迅致许广平原信68封，而抽掉许广平原信，是不够妥当的。这既背离鲁迅一贯的心愿，又有碍于对鲁迅原信的理解。故建议该书在修订版时重新收入许广平原信。     

Use of mathematical models in automotive transportation policy analysis: A case study

Mathematical models are used widely in automotive transportation policy analysis. The limitations, benefits, and uses of a case-study model, the Sweeney Passenger Car Gasoline Demand Model, were examined. It was found that because of users' lack of awareness of the model's characteristics, the model has sometimes been misused, although the misuse appears to have had no major negative policy impact. However, the model use has had some impact on major automotive/energy policy decisions of the 1970s. Involvement by the model author in applications of the model contributed to effective use of the model in the policy process.     

A model of industrial satisfaction/complaining behavior

A model of the purchaser's satisfaction with supplier response to a formal buyer complaint is developed and tested. The authors answer two important questions: (1) what variables affect the purchasing agent's satisfaction with a supplier's response to a complaint? and (2) how can the supplier respond so as to keep that customer in the future?     

Knowledge and Values in Technology Education

This paper addresses two closely interrelated issues in Technology Education: knowledge and values. The starting point for the discussion is analysis of the nature of knowledge in technology education. Approaches for theorising knowledge will be analysed in this paper as well as problems associated with them. Three major types of problems are identified: problems with finding an appropriate approach for the analysis of technological knowledge; problems with a technocratic interpretation of technological knowledge for the purpose of its classification; and problems with establishing a consistent approach to distinguish common features of technological knowledge. A model that represents knowledge in technology education and the place of values in it is presented as a way of overcoming the problems specified. The claim is made that understanding of knowledge/values relationships can improve theoretical understanding of how technology education can be constructed.