云南省生物资源产业发展与风险投资--以花卉与生物制药为例

作者立足于云南省生物资源开发这一新兴产业的发展,通过具体调研和理论分析,从云南省生物资源产业的发展现状及其存在的主要问题出发,通过论证生物资源产业发展与风险投资的关系,提出了风险投资介入云南省生物资源产业的可行途径和模式,并对政府资金的运作和风险投资企业的运营提出了具体建议。     

在创新教育中教师课堂教学行为应有的转变

在新课程的环境下 ,教师要进行教育创新 ,就必须在课堂教学中处理好传授知识与培养能力的关系 ,处理好师生互动的关系 ,处理好结论性目标与体验性目标的关系 ,处理好信息技术与学科整合的关系 ,促进课堂教学行为发生应有的转变 ,以适应现代教育的需要     

On Block Skip Free Transition Matrices and First Passage Times

Starting from an abstract setting which extends the property “skip free to the left” for transition matrices to a partition of the state space, we develop bounds for the mean hitting time of a Markov chain to an arbitrary subset from an arbitrary initial law. We apply our theory to the embedded Markov chains associated with the M/G/1 and the GI/M/1 queueing systems. We also illustrate its applicability with an asymptotic analysis of a non-reversible Markovian star queueing network with losses.     

一种基于网格剖分的两点射线追踪方法

两点射线追踪是解决复杂地质结构下反射波射线正演的有效方法。在初至波层析射线追踪算法基础上，提出了一种两点射线追踪方法，利用层析网格对模型进行离散化，通过两阶段法射线追踪，分别对激发点和接收点按向前处理过程计算模型单元及节点的旅行时，两次时间相加作为最小旅行时，再在目的层界面邻域扫描最小旅行时子震源网格单元，用粒子群算法在该单元内扫描全局最小旅行时点，得到反射点位置与反射夹角，再利用向后处理过程运用旅行时线性插值算法，从反射点分别到激发点、接收点反向追踪射线路径，最后得到反射波两点射线路径。     

基于B／S模式的高校辅导员综合考评系统的设计与实现

利用现代信息技术加强辅导员队伍的管理，特别是抓好辅导员的综合考评，是推进高校辅导员队伍建设的一个重要课题。结合高校辅导员考核的实际需求，根据人力资源管理理论中的360。模糊评价理论，在进行总体结构和设计方案论证基础上，基于B／S（Browser／Server，浏览器／服务器）模式，通过ASP．NET技术，采用sQLServer2005作为后台数据库设计的高校辅导员综合考评系统，具有架构合理、操作简便、考评效率高的特点。     

A stepwise approach for the purely periodic interaction spline model

The basic idea of an interaction spline model was presented in Barry (1983). The general interaction spline models were proposed by Wahba (1986). The purely periodic spline model, a special case of the general interaction spline models, is considered in this paper. A stepwise approach using generalized cross validation (GCV) for fitting the model is proposed. Based on the nice orthogonality properties of the purely periodic functions, the stepwise approach is a promising method for the interaction spline model. The approach can also be generalized to the non-purely-periodic spline models. But this is no done here.     

A cubic smoothing spline based lack of fit test for nonlinear regression models

The use of a statistic based on cubic spline smoothing is considered for testing nonlinear regression models for lack of fit. The statistic is defined to be the Euclidean squared norm of the smoothed residual vector obtained from fitting the nonlinear model, The asymptotic distribution of the statistic is derived under suitable smooth local alternatives and a numerical example is presented.     

Rényi statistics for testing hypotheses in mixed linear regression models

Rényi divergences are used to propose some statistics for testing general hypotheses in mixed linear regression models. The asymptotic distribution of these tests statistics, of the Kullback–Leibler and of the likelihood ratio statistics are provided, assuming that the sample size and the number of levels of the random factors tend to infinity. A simulation study is carried out to analyze and compare the behavior of the proposed tests when the sample size and number of levels are small.     

An application of cartographic area interpolation to German administrative data

In many situations the applied researcher wishes to combine different data sources without knowing the exact link and merging rule. This paper considers different cartographic interpolation methods for interpolating attributes from German employment office districts to German counties and vice versa. In particular, we apply dasymetric weighting as an alternative to simple area weighting, both of which are based on estimated intersection areas. We also present conditions under which the choice of interpolation method does not matter and confirm the theoretical results with a simulation study. Our application to German administrative data suggests robustness of estimation results of interpolated attributes with respect to the choice of interpolation method. We provide weighting matrices for regional data sources of the two largest German data producers.     

B/S模式的PSC现代化管理系统的构建

探索网络环境下的普通话测试与管理,已经成为一个很重要的课题。本文主要研究B/S模式下的PSC现代化管理系统构建,从硬件、软件、网络服务各方面提出设计理念。