信息化指数模型及上海信息化水平的测定

The paper gives an improved model of informatization index. With this model, the social informatization indices of Shanghai from 1995 to 1999 are measured. The social informatization level of Shanghai in those 5 years is analyzed.     

知识管理项目经理素质的评价方法

依据知识管理项目经理的工作职责，提出了一种知识管理项目经理素质的评价方法。该方法是针对评价项目经理的素质问题，构建一个评价指标体系，并分别进行基于主观指标的模糊评价和基于考试成绩的客观评价，将主观评价结果与客观评价结果进行综合，使最终评价结果反映主观程度和客观程度。最后给出了一个算例，以说明方法的有效性。     

Robust parameterisation of ages of references in published research

The purpose of this research is to illustrate the use of the gamma distribution to model the ages of references in published research, and to demonstrate that the two gamma distribution parameters characterise a field of research in a manner that is complementary to and more nuanced than the Price Index or mean age of references.Minimum Distance Estimation is shown to produce robust estimates of the gamma distribution parameters because of the insensitivity of the Kolmogorov–Smirnov test in the tails of the distribution.Using a sample of 816 articles from 26 different journals across six subject areas, it is shown that the gamma distribution is at least as good as a lognormal distribution to model the ages of references in research articles.The two gamma distribution parameters indicate the rate of publication of new knowledge within the respective discipline and the citing behaviour in terms of the recency of references. Interpretation of these gamma distribution parameters enables a more nuanced and granular interpretation of the distinctiveness of disciplines, sub-disciplines, formats of publication and the distribution of references within articles than possible using the Price Index, half-life or mean age of references.     

中国股指期货推出对A股波动影响分析

基于发展较成熟的恒生指数日收益率波动情况,引入股指期货推出前后的虚拟变量,建立ARCH和GARCH模型,检验股指期货推出对股指波动的影响,有利于揭示股指期货的波动性规律,降低市场系统性风险。实证研究结果表明,GARCH（2,1）模型拟合效果最佳;股指期货的推出,不但没有增加股指的波动性,反而对其波动性有所降低,但这种影响从数值来看非常小。     

损失规避下的指数跟踪问题及其粒子群算法求解

随着指数衍生产品日益受到重视,指数化投资组合常被传统的消极基金管理者或机构所采用,而用有限的资金按指数构成比例进行投资显然是不现实的,所以指数的最优误差追踪就显得更加重要。将追踪误差定义为证券投资组合收益率与所追踪的指数基准收益率之差的均值平方和的平方根,建立了基数约束（即总资产数不超过某个特定整数K）下考虑投资者损失规避决策偏好的跟踪误差最小化模型,并设计了一个粒子群算法求解模型。实际算例表明,所构建的模型和算法是有效的。     

利用分光计测量钠原子里德堡常数

用分光计采用最小偏向角法,测出汞灯、氢灯和氦-氖激光器发出的已知谱线的波长所对应的折射率,利用Origin8.0软件,拟合出色散曲线,得到色散公式.再通过测量钠灯各谱线的波长及确定其所属线系来测定里德堡常数.测量结果相对误差为2.95%,实现了使用普通常规仪器测量里德堡常数.     

Resistance partial factor and reliability of cast ball-and-socket support joint

Considering the uncertainty of material performance, geometric characteristic and analysis method, the analysis of statistical parameters of the resistance of cast ball-and-socket support joints and the reliability analysis are carried out by JC method (improved first-order second-moment method) based on the relevant experimental data. Results show that the resistance partial factor of the joint increases with the increase of the reliability index. The resistance partial factors are suggested corresponding to the reliability index under different load combinations. Moreover, the suggested resistance partial factor is adopted in reliability design, and it is found that the reliability index of the joint is larger than the target reliability index. The optimal load combination is the one in which live load plays an important control role. Finally, based on the suggested resistance partial factors, the reliability analysis of cast ball-and-socket support joints of a project is conducted.     

指数经济：市场经济成长的历史新阶段

浙江、江苏和广东三省六大专业市场指数的发布,在很大程度上标志着中国将迎来＂指数经济＂时代。＂指数经济＂是市场经济继＂商品经济＂和＂价格经济＂之后的一个新的历史阶段,它可以在更大程度上掌握各种商品定价的话语权,最终在更大范围、更高层面的整合一个区域的经济发展资源。在浙江省,＂指数经济＂不仅大大拓展了＂草根经济＂的创业空间,也大大强化了＂大树经济＂的创新动力,从而与省委省政府提出的＂双创战略＂形成叠加效应,推动浙江经济进一步良性发展,保持市场经济的领先优势。     

河南省高校高职称教师BMI指数及饮食状况的调查与研究

采用文献资料法、问卷调查法、专家访谈法和数理统计法,对河南省6所高校高职称教师群体的BMI指数和饮食状况进行了调查.结果表明：河南省高校高职称教师BMI指数处在正常范围内的占65.53%,体型偏瘦的占2.43%,超重的占31.07%,女性教师体质指数明显好于男性教师,差异极显著（P〈0.01）;高职称教师每天的膳食种类偏少,粗杂粮和蔬菜摄入量不够,对于营养保健知识的了解和掌握缺乏系统性和全面性.建议高职称教师群体关注合理膳食和运动锻炼对身心健康的重要性,改善生活习惯,同时有关部门应加强对高职称教师群体的健康教育.     

一类带有线性边值条件拟线性微分方程解的存在性

应用不动点指数定理,研究了一类带有线性边值条件的拟线性微分方程{φ(x'));+a(t)f(x(t))=0,t∈(0,1){x(0)-βx'(0)=0,应用不动点指数定理得出该微分方程至少有一正解的充分{x(1)-δx'(1)=0条件.