凝聚随机算子的一个不动点定理

利用拓扑度的基本性质，给出了凝聚随机算子的一个不动点定理，由此推广了Altman定理，为进一步研究随机算子方程解的存在唯一性及解的近似方法提供了一个有力的工具。     

两小球对心弹性碰撞后速度的计算与分析

用对称性原理推导出两小球对心弹性碰撞后的速度公式 ,该公式求解简单 ,宜于推广 ,对高中生学习物理有很大的帮助     

控股股东与经营者一体化存在的问题及其治理

文章通过对控股股东与高层管理者的关联性描述,指出了控股股东与经营者的一体化趋势;然后从产权理论、交易费用理论和控制权收益三个角度对这种趋势进行原因分析;最后针对一体化带来的负面影响提出相应的对策。     

电信运营商移动互联网运营模式研究

移动互联网是全球电信运营商未来重要的发展方向，论文从产业价值链角度对电信运营商发展移动互联网的运营模式进行研究，了解各种运营模式的特点，从收益角度分析各种模式的利弊，提出渠道模式将成为主流的运营模式，希冀对电信运营商发展移动互联网带来启示作用。     

长三角都市圈与东盟国家贸易实证分析

从长三角都市圈与东盟双边贸易发展的理论分析、现状和特点人手,结合长三角都市圈与东盟双边贸易历年数据、贸易结合度指数、出口依存度指数以及拉动经济增长的线性回归模型等进行实证分析,得出长三角都市圈与东盟双边贸易的结构特点及发展趋势,并对促进双边贸易的扩大发展提出有效措施.     

AN ALGORITHMIC APPROACH TO BAYESIAN LINEAR MODEL CALCULATIONS

A framework is described for organizing and understanding the computations necessary to obtain the posterior mean of a vector of linear effects in a normal linear model, conditional on the parameters that determine covariance structure. The approach has two major uses; firstly, as a pedagogical tool in the derivation of formulae, and secondly, as a practical tool for developing computational strategies without needing complicated matrix formulae that are often unwieldy in complex hierarchical models. The proposed technique is based upon symbolic application of the sweep operator SWP to an appropriate tableau of means and covariances. The method is illustrated with standard linear model specifications, including the so-called mixed model, with both fixed and random effects.     

Conservatism of the Accident Sequence Evaluation Program HRA Procedure

This paper presents a limited assessment of the conservatism of the Accident Sequence Evaluation Program (ASEP) human reliability analysis (HRA) procedure described in NUREG/CR-4772. The data for this study are derived from simulator examination reports from the NRC requalification examination cycle for nuclear power plant operators. The ASEP procedure was used to estimate human error probability (HEP) values for critical tasks, and the HEP results were compared with the failure rates observed in the examinations. The ASEP procedure was applied by PNNL operator license examiners who supplemented the limited information in the examination reports with expert judgment based upon their extensive simulator examination experience. Comparison of the average of the ASEP HEP values with the fraction of the population actually failed and demonstrated that the ASEP HEP values are larger (conservative) by a statistically significant average factor of two. Partitioning of tasks into subgroups based on the ASEP HEP values and comparison of the subgroup average ASEP HEP values with observed subgroup failure rates showed little or no conservatism for small ASEP HEP values, but considerable conservatism for larger ASEP HEP values.     

Iterated full partitions

Algebraic calculations that depend upon a full partition can be automated through the use of an operator P for the derivation of such a partition. Calculations that require the repeated use of P are automated by simply iterating the operator. The resulting output is general and contains sufficient structure to identify the result of a calculation for a variety of settings.     

国家自然科学基金资助项目综合评价:基于Vague 集多准则决策

采用基于Vague 集的多准则决策方法,对国家自然科学基金11 类主要竞争性资助项目的实施情况进行综合评价和排序． 首先,通过问卷调研的方式,由国家自然科学基金项目评审专家采用“高”、“不高”和“不清楚”三类语义,对各类项目按照“评审公正性”、“管理规范性”、“科研创新性”和“社会影响力”四个准则进行评价; 然后,根据问卷统计结果,将语义评价转化为Vague 估计值,并利用一种新的评分函数计算各类项目在各准则下的得分; 最后,采用正态分布的OWA 算子集结各准则下的得分,得到所有项目的综合评价和排序． 本文的研究结果将为完善国家自然科学基金的资助结构与管理模式提供重要参考依据．     

环绕唐五代诗格中“势”论的诸问题

作为中国古代文学理论的重要范畴之一,唐五代诗格中的“势”论,有其特定的理论渊源。“势”的含义的发展有一个过程,尤其是被兵家借用为兵法概念,即兵“形势”和兵“技巧”以后,遂进而影响到东汉以后的书论,意谓字体的形状和结体的态势;影响到文论,即指文章的风格。至唐王昌龄撰为《诗格》,提出“十七势”等诗学概念,则谓诗歌创作中的运思和意脉的流转变化。至于皎然《诗式》、齐己《风骚旨格》、僧神《诗格》等,虽借用禅宗话头,巧立名目,然其所谓“势”论,也大抵与王昌龄相近,而与禅学中的“势”并无深层关系。