试论中国古代王朝宗室的构造特征

宗室是皇权专制的产物,研究宗室的构造特征对于研究东方封建主义和中华帝国现象具有重要的学术意义.从汉晋到明清,宗室族群的构造遵循大体相同的原则,即尊奉开国皇帝之上的某位先祖,向下突破五服框架开放边际,服属远近只是配置利益的尺度,绝非辨族的基准.历朝大举扩张宗室规模,旨在“广帝宗,重磐石”,求得江山社稷千秋万代.     

A Unified Way to Represent and Compute the Cumulative Distribution Function for Noncentral t,F, and χ2

This short article shows an unified approach to representing and computing the cumulative distribution function for noncentral t, F, and χ². Unlike the existing algorithms, which involve different expansion and/or recurrence, the new approach consistently represents all the three noncentral cumulative distribution functions as the integral of the normal cumulative distribution function and χ² density function.     

地下空间开发对城市环境地质的影响及保护措施浅谈

城市地下空间作为一种资源在城市发展中扮演着重要的角色。地下空间具有恒温、恒湿、抗震、防爆、绝热、封闭和可开拓性好的特点,所以开发地下空间比建造地面工程有着独特的优势,目前开发和利用地下空间已成为我国大中城市解决人口、资源、环境危机和医治“城市综合症”的重要措施,也是实施城市可持续发展的重要途径。     

我国食品安全监管体制研究——兼评我国《食品安全法》

我国食品安全监管的主要问题表现为行政监管组织法体系不健全、监管主体过多、行政监管权分配不合理以及对监管主体缺乏有力的责任约束机制。2009年2月通过的《食品安全法》并没有改变分段监管的模式，食品安全委员会权限设置不明确，影响监管力度。结合我国国情，要完善安全监管行政组织法体系、推行渐进式统一模式，将各个环节的监管职权逐步整合于食品药品监督管理局，加大食品安全委员会的职权，增强其协调权威性，并不断加强监管机构的监管责任，建立权责一致的行政和司法责任追究制度：     

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.