Statistical manipulability of social choice functions

We consider the proportion of profiles at which an anonymous neutral social choice function cannot be manipulated to any coalition's advantage. We fix the number of alternatives and consider the limit as the number of individuals goes to infinity, and assume that the limit of the fraction of all profiles in the domain is 1. We show that there is a continuous function on “profile vectors’ which gives the maximum probability of strategy-proofness, and that this is strictly between 0 and 1 for three alternatives. We also analyze a number of common social choice functions along these lines.     

基于m序列的宽间隔跳频序列的生成

为了克服对偶法生成宽间隔跳频随机序列的缺点,基于m序列,提出非线性模d法,利用非连续抽头模型,生成宽间隔跳频随机序列.比较了对偶法生成的跳频序列和非线性模d法生成的跳频序列的自相关性能和互相关性能等.计算结果表明,非线性模d法是对偶法的明显改进,其生成序列的随机性、抗干扰性都有明显改善,且相关性能接近于最佳跳频序列的相关性能.     

对我国政府效益审计的思考

开展效益审计是落实科学发展观的本质要求,是建设节约型社会的必然选择,也是内部审计的基本职责和优势所在。通过效益审计的国际比较分析,以便在我国更好地开展政府绩效审计,完成国家审计署要在今后五年全面推进效益审计,到2010年建立起适合我国国情的效益审计方法体系的目标。     

顾客满意度的TOPSIS算法研究

当今“顾客满意”已经成为现代市场营销的核心。“顾客满意”的理论和实践的发展必然对其提出数量化的处理目标。在建立测评指标体系的基础上,将TOPSIS算法应用于顾客满意度测评体系中,为顾客满意度测评提供一种新的思路和方法。     

高新技术企业综合评估系统研究

对高新技术企业的评估是一项非常重要的工作,因为它直接关系到对高新技术企业投资的成功与否。根据我国实际情况,结合国内外已有的研究成果,运用AHP法建立高新技术企业评估指标体系,并且利用模糊数学建立高新技术企业综合评估模型,旨在较好地解决对高新技术企业评估的问题。     

TiO2光催化氧化研究进展

本文着重介绍了光催化氧化反应的特点，TiO2的性质及光催化的原理，TiO2光催化剂的制各方法及其应用，提出目前存在的问题，对研究开发方向做了展望。     

纳米氧化锌制备技术与工业生产

介绍了国内外纳米氧化锌制备技术的研究进展.通过对国内外制备技术和生产现状的比较,提出以尿素为沉淀剂,以硝酸锌为含锌原料,采用均匀沉淀法制备纳米ZnO的工艺路线,研究了相关的工艺过程及反应条件、反应产物的过滤洗涤和纳米ZnO的煅烧,对存在的问题和今后的研究方向进行了讨论.     

Critical Situations for Decision Making: A Support Based on a Modelling Tool

This paper proposes to give a toll to help decision makers in critical situations. The principle of our research is based on a modelling approach for Cooperative Knowledge Based Systems. This approach is based on a Task/Method paradigm that we describe. We then propose to take into account collateral effects of tasks in order to support decision makers in a critical context. The proposed tool can then generate a degraded solution for which, collateral effects of previous tasks have been taken as new goals to reach. This study is possible thanks to the definition of several kinds of models: a Good Functioning Model and a Degraded Tasks Library.     

Nonlinear Taylor rules in Central Eastern European countries

This study applies sequential panel selection method (SPSM), proposed by Chortareas and Kapetanios (2009) Chortareas, G., and G. Kapetanios. 2009. “Getting PPP Right: Identifying Mean-Reverting Real Exchange Rates in Panels.” Journal of Banking and Finance 33: 390–404.[Crossref], [Web of Science ®] , [Google Scholar], to investigate to test the validity of Taylor rules to assess the nonstationary properties of the convergence of the real exchange rates for 10 Central Eastern European countries. The SPSM can be used to decompose a panel of real exchange rate series into two groups: a group of stationary series and a group of nonstationary series. We identify the stationary processes in the panel and demonstrate that Taylor rules holds for 7 of the 10 countries studied. These results imply that the choices and effectiveness of the monetary policies in Central Eastern European economies are highly influenced by external factors originating from the United States. Additionally, our findings highlight that their real exchange rate convergence is a mean reversion toward equilibrium values of Taylor rules in a nonlinear manner.     

糠醛法PTMEG项目投资机会分析

本文介绍了PTMEG产品的生产情况，糠醛法工艺合成路线以及国内外PTMEG市场情况，对前郭炼油厂PTMEG项目投资机会进行了分析。分析结果表明，投资PTMEG项目是可行的，具有广阔的发展前景。