WHAT MAKES A GREAT JOURNAL GREAT IN ECONOMICS? THE SINGER NOT THE SONG

Abstract This paper analyses what makes a great journal great in economics. Alternative research assessment measures (RAM) are discussed, with an emphasis on the Thomson Reuters Institute for Scientific Information (ISI) Web of Science database. ISI RAM that are calculated annually or updated daily are defined, including the classic 2‐year impact factor (2YIF), 5‐year impact factor (5YIF), immediacy (zero‐year impact factor (0YIF)), eigenfactor score, article influence, citation performance per paper online, h‐index, Zinfluence, PI‐BETA (papers ignored ‐ by even the authors) and two new RAM measures, self‐citation threshold approval rating and impact factor inflation. The data are analysed for the most highly cited journals in economics, management, business and business–finance on the basis of 2YIF. In addition to evaluating research in the most highly cited journals in economics, management, business and business–finance, the paper evaluates alternative RAM, highlights similarities and differences in RAM criteria, finds that several RAM capture similar performance characteristics, and finds that immediacy and PI‐BETA are not highly correlated with other RAM. Harmonic mean rankings of the 12 RAM criteria are also presented. Emphasizing 2YIF to the exclusion of other useful RAM criteria can lead to a distorted evaluation of journal performance and influence.     

基于DSP的三相PWM整流PI调节器设计

通过分析三相脉宽调制（PWM）整流器在a-b-c及d-q旋转坐标系下的数学模型,设计了具有前馈解耦控制的PWM整流器双闭环控制系统。根据系统对电流内环及电压外环的控制要求设计了电流比例积分（PI）调节器及电压PI调节器。最后对整个PWM整流器双闭环控制系统进行仿真,并采用以DSP为核心构建PWM整流器控制系统,仿真和实验结果验证了PI调节器设计的正确性。     

基于变参PI算法的单片机过零控制系统

文章阐述了一种可变参数的 PI 算法,基于该算法用单片机对燃油炉炉温进行过零控制。文章给出了单片机控制的接口电路及其程序框图。     

投资项目评价标准的比较与选择

净现值、内部收益率、获利指数等贴现指标在互斥项目选择的实际应用中,常导致不同的投资决策,其原因、解决方法是本文探讨的目的。文章首先对净现值和内部收益率进行比较分析,着重介绍了内部收益率的先天缺陷及替代方法MIRR;然后分析净现值和获利指数的主要差异,最后得出结论:净现值是确定条件下投资项目评价标准中最合理的方法,其他标准则需结合着净现值来运用,否则可能导致决策失误。     

A new proposal for the reunification of the two Koreas: Economic issues

We present an alternative five-step plan which not only supplements the deficiencies of the current official plans for reunification, but also incorporates recent developments, such as, joint membership of North and South Korea of the United Nations (1991), and mutual agreements on reconciliation, nonaggression and economic exchange and cooperation (1992). The plan starts with a preliminary step for the normalization of relations between the two Koreas, and then subsequently moves on to economic integration, social integration, political integration, and military integration. However, as the political confrontation in the Korean peninsula has already been well-researched elsewhere, We discuss economic issues which are likely to present themselves during the unification process. Economic issues, rather than the political ones, could prove to be of the greatest concern to a smooth reunification between the peninsula's long- divided neighbors.     

贴现评价指标在互斥项目评估中的矛盾协调研究

净现值、内部收益率和盈利指数是投资项目评估中的三种贴现指标。但三者在互斥项目评估中有时会出现矛盾冲突。分析了三种贴现指标在互斥项目评估中出现矛盾冲突的原因,并在此基础上提出了关于协调此类矛盾冲突的方法。     

特种工程塑料发展现状及技术动向

详述特种工程塑料的品种、特性和用途以及国内外发展现状及技术动向     

The role of perceived costs and perceived benefits in the relationship between personality and risk‐related choices

This paper considers how perceptions of costs and benefits can influence the association between personality and risky choice behaviour. We assessed perceptions and behaviours in six domains (ethical; investment; gambling; health and safety; recreational; social) using the DOSPERT and measured personality using the NEO PI‐R. Results from structural equation modelling showed that personality had a direct effect on risky choice behaviour in four domains (social, ethical, gambling and recreational risk‐taking). In addition, perceived costs and benefits mediated the relations between personality and risk‐taking in the five domains (social, ethical, gambling, recreational and investment risk‐taking). Evidence for a mechanism that integrates both direct and indirect effects of personality on behaviour is discussed.     

深部调驱技术的研究与应用

深部调驱技术是以深部调剖为主,在"调"的基础上又结合了"驱"的效果,并具有提高波及系数和驱油效率的双重作用。介绍了PI选层决策技术、调驱处理半径的确定以及现场施工常用参数的确定。     

文25东块聚合物微球调驱研究与应用

文25东块油藏由于储层层内非均质性强,易暴性水淹,水驱效果逐年变差。区块内油井受效方向单一,受效小层单一,见效油井含水上升速度快。针对层间非均质性严重、主力厚油层层内动用不均的问题,水井上通过分注、调配难以启动差层,无法挖掘厚油层层内潜力。应用注水井层内深部调剖技术,扩大注入水波及体积,改善吸水剖面,挖掘厚油层层内剩余油潜力,实现层间、层内挖潜的目的。实施后井组稳产基础增强,自然递减下降。