浅析免费师范生就业中存在的问题

本文从首届免费师范生的就业情况入手,根据相关统计结果对当前免费师范生政策实施中存在的问题进行总结,进而从事前(招生报考阶段)、事中(培训教育阶段)、事后(就业任职阶段)三个阶段对存在的问题进行浅析并提出建议。     

加强收费票据管理 提高收费资金的监管力度

收费票据是财务收支的法定凭证 ,是审计部门检查监督的重要依据 ,但在行政事业性收费票据的使用中出现了一些不正常现象 ,为此有必要采取一定的措施对其进行管理。     

Procrustes shape analysis of triangulations of a two coloured point pattern

Consider a set of points in the plane with Gaussian perturbations about a regular mean configuration in which a Delaunay triangulation of the mean of the process is comprised of equilateral triangles of the same size. The points are labelled at random as black or white with variances of the perturbations possibly dependent on the colour. By investigating triangle subsets (with four sets of possible colour labels for the vertices) in detail we propose various test statistics based on a Procrustes shape analysis. A simulation study is carried out to investigate the relative merits and the adequacy of the approximations used in the distributional results, as well as a comparison with simulation methods based on nearest-neighbour distances. The methodology is applied to an investigation of regularity in human muscle fibre cross-sections.     

对"员工持股制度"的理性思考--从华为股权争论看员工持股制度

尽管员工持股制度在西方国家运行良好,但我国实施这一制度却并未达到预期效果.文章通过分析"华为"的股权争论,认为造成我国员工持股制度失效的原因是我国的员工持股制度在实施中存在管理不规范问题,员工持股制度本身存在难以克服的制度性缺陷及产生额外的交易费用和成本.所以对员工持股制度需要辩证认识,不能简单效仿.一味追求所谓的经济民主,可能得不偿失.     

论建立完善的高等教育收费制度

我国高等教育收费的调整周期应设定为 5年 ,以高等教育的私人收益率不低于同期银行利率 ,根据比较利益理论确定相邻周期高等教育收费的调整幅度 ;不同学校和专业高等教育收费标准的确定应依据各高校、专业的办学成本和平均社会收益率、私人收益率 ,以省为单位组织由各方代表参加的收费听证会确定在调价周期内收费的基准线和浮动区间 ;将高等教育收费管理的全过程分为“定价管理”与“资金管理”两个环节 ,前者由物价部门为主管理 ,后者由教育主管部门为主管理。要建立严格的高等教育收费审批备案制度 ,完善高等教育收费的监督检查系统 ,促进高等教育收费有序进行     

完善高等教育收费制度的对策

随着高等教育体制改革的进一步深化,以及中国加入WTO后高等教育面临的新形势,高等教育收费问题将成为社会广泛关注的焦点。制定科学合理的收费标准,加强高等教育的投入和管理,尤其是完善贫困生贫助政策是解决高等教育收费所引起负面效应的有效途径。     

A model for estimating point sources in spatial data

We introduce a point source model which may be useful for estimating point sources in spatial data. It may also be useful for modelling general spatial data, and providing a simple explanatory model for some data, whilst in other cases it may give a parsimonious representation. The model assumes that there are point sources (or sinks), usually at unknown positions, and that the mean value at a site depends on the distance from these sources. We discuss the general form of the model, and some methods for estimating the sources and the regression parameters. We demonstrate the methodology using a simulation study, and apply the model to two real data sets. Some possibilities for further research are outlined.     

Minimax Designs for the Stability of Slope Estimation on Second-order Response Surfaces

In this paper, designs for the stability of the slope estimation on a second-order response surface are considered. Minimization of the point dispersion measure, which is maximized over all points in the region of interest is taken as the optimality criterion, and the minimax properties in some class of designs are derived in spherical and cubic regions of interest. We study the efficiencies of the minimax designs relative to other optimal designs with various criteria.     

同步脉宽调制式高分辨力ADC研究

同步V/F转换器由于其输出频率的相位调制特性,以及输出频率上限的限制,影响了其分辨力的进一步提高。采用电荷平衡与双斜式原理相结合的同步V/F转换技术,可提高其分辨力。该文提出一种基于双比较器定电压的同步脉宽调制新技术,在定电压积分的基础上,通过较高的同步时钟脉冲自动“微调”积分时间,实现了一个周期内电荷的充分平衡。通过多周期测量,实现了各周期内电荷动态平衡调节效果。经实验验证和测试表明,分辨力达5位,最小二乘法拟合线性度优于0.005%。