乙二醇机组的温度模糊控制器设计与仿真

针对我国通信行业和计算机行业大型机房耗电量大的现状，提出了一种乙二醇机组控制系统。介绍了它的工作原理，阐述了它的总体控制方案，并重点阐述了采用温度模糊PID控制器对室内温度进行调节。仿真和实验结果表明：采用温度模糊控制器的系统运行稳定、可靠性高、节能效果明显，具有广阔的应用前景。     

Changepoint Estimation in a Segmented Linear Regression via Empirical Likelihood

For a segmented regression system with an unknown changepoint over two domains of a predictor, a new empirical likelihood ratio statistic is proposed to test the null hypothesis of no change. Under the null hypothesis of no change, the proposed test statistic is shown empirically to be Gumbel distributed with robust location and scale estimators against various parameter settings and error distributions. A power analysis is conducted to illustrate the performance of the test. Under the alternative hypothesis with a changepoint, the test statistic is utilized to estimate the changepoint between the two domains. A comparison of the frequency distributions between the proposed estimator and two parametric methods indicates that the proposed method is effective in capturing the true changepoint.     

天津市BT模式项目实践及其风险分析

一、BT模式简述 BT项目投融资建设模式是指项目所在地方政府与投资人签订特许协议,将城市公用基础设施或基础产业项目交由投资人成立的BT项目公司筹资、设计并建设，特许期满后,投资人按照特许协议的约定,收回投资及回报并将BT项目移交给政府或其授权机构。     

城市人口密度、国内市场规模与就业增长

我国经济“高增长、低就业”现象的原因在于我国贸易成本过高，国内市场规模较少。解决我国就业问题的关键在于减少行政干预，顺应市场要求，促进人口在空间上的适度集中，提高人口密度，提高消费效率，扩大市场规模。应进一步完善城乡一体的户籍制度，完善整合城乡劳动力市场，提高要素流动能力等。     

Maternal Autonomy- and Connectedness-oriented Parenting Behaviors as Predictors of Children's Social Behaviors in China

The purpose of the study was to examine the contributions of maternal encouragement of autonomy and maternal encouragement of connectedness to the prediction of children's social behaviors. A sample of children (N  =  94), initially aged two years, and their mothers in China participated in the two-year longitudinal study. Child autonomy and connectedness and maternal goal-oriented behaviors were assessed at two years of age through the observation of mother–child interactions. Data on children's social participation, prosocial behavior, aggression, and organization/leadership in peer interactions were collected in a follow-up study when the children were four years of age. It was found that maternal encouragement of connectedness significantly predicted children's sociability and organization/leadership behavior, especially for children who were relatively high on autonomy. The results indicated the developmental significance of socialization goal-oriented behaviors in cultural context.     

田中典子的和纸艺术

中国汉朝发明的纸张在3世纪传到日本.7世纪初,造纸术又传到日本(比传到欧洲早数百年).之后,日本改良并开发了独特的造纸术,制造出本国特产的"和纸".和纸轻薄而坚韧,质地柔软,富有温馨之美.     

关于建立城乡统一的社会保障体系的浅见

建立城乡统一的社会保障体系不仅是学术界争论的焦点，也是实践部门讨论的热点。各种主张众说纷纭。然而，建立统一的社会保障体系不能凭空设想，应立足于实际，坚持具体问题具体分析。当务之急是根据农村的情况，分地方、分人群、分层次建立安全有效的农村社会保障体系。     

教师课时津贴对独立学院学生培养成本影响分析

基于浙江省某独立学院2009学年学生学费和教师课时津贴的调查数据,运用成本分析、人力资本形成与收益理论、工资及福利核算理论及会计工具,就独立学院学生培养成本和教师课时津贴关联性进行理论分析和数据检验,得到以下研究结果:a.教师课时酬金比例占当年人员经费总量达到34.3%,位居人员支出项目首位.b.2009年每个学生全年所支付的学费中,有13.38%用于支付教师的课时津贴.     

《噶玛巴为明太祖荐福图》回回文初探

13世纪波斯语成为在中国生根的一种外语、一种少数民族(即回回人)的族内共同语言,也是中国对外交往,特别是与伊斯兰文化圈的国际交际语言。明朝建立之后,承续元朝传统,波斯语不仅继续成为明朝与外国交流的语言,而且在国内政治生活中仍然起着重要作用,于是兼通汉回两种语言的回回人受到重视。①波斯文就是在这样一种背景之下,成为书写《荐福图》的五种文字之一。     

秦、西汉的“内臣”与“外臣”

本文对文献记载中西汉政权处理民族关系时出现的“内臣”和“外臣”作了分析 ,归纳了它们在与中央政权关系上各自不同的特点。作者在分析云梦睡虎地秦简的基础上认为 ,秦简中的“臣邦”相当于汉代“内臣” ,“外臣邦”相当于汉代“外臣” ;并指出文献中的“羁縻”制度等同于“外臣” ,“葆塞蛮夷”相当于“内臣” ;同时提出“内诸侯”和“外诸侯”的称呼不适合于汉代分封和民族政策 ,应以汉代习称的“内臣”和“外臣”为准。最后 ,本文归纳了“外臣”向“内臣”转化的途径和原因 ,提出中央政权军事力量的壮大是完成此转化的直接动力。