从武术套路和花式篮球的比较中看武术的发展走向

本文采用文献资料法和逻辑推理法对武术套路和花式篮球的形成及发展现状进行了对比分析,阐明武术套路和花式篮球都是由各自本质要素弱化或缺失后演变而来,并提出发展完整技击是武术发展的必由之路。     

Estimating the number of clusters

Hartigan (1975) defines the number q of clusters in a d ‐variate statistical population as the number of connected components of the set {f > c}, where f denotes the underlying density function on R^d and c is a given constant. Some usual cluster algorithms treat q as an input which must be given in advance. The authors propose a method for estimating this parameter which is based on the computation of the number of connected components of an estimate of {f > c}. This set estimator is constructed as a union of balls with centres at an appropriate subsample which is selected via a nonparametric density estimator of f. The asymptotic behaviour of the proposed method is analyzed. A simulation study and an example with real data are also included.     

社区管理与服务专业主干课程建设研究

社区管理与服务在我国城乡和谐社会建设中具有重要的地位,但由于属于新兴专业,其课程设置目前仍有待完善之处。这些问题包括总体社区工作课程过多且存在一定重复,忽略社区服务的具体环节和技巧教育,以及各课程之间相互区隔缺乏沟通联动等。笔者以为社区管理与服务专业的主干课程,当以社区工作服务群众时所需的技能体系为基础进行设计。具体包括强化社区服务各环节技能的训练,并打破现有课程之间的藩篱,在不同的课程之间,尤其是社区工作专业技巧课程之间建立起前后的承接关系。     

Error reduction in density estimation under shape restrictions

For the problems of nonparametric estimation of nonincreasing and symmetric unimodal density functions with bounded supports we determine the projections of estimates onto the convex families of possible parent densities with respect to the weighted integrated squared error. We also describe the method of approximating the analogous projections onto the respective density classes satisfying some general moment conditions. The method of projections reduces the estimation errors for all possible values of observations of a given finite sample size in a uniformly optimal way and provides estimates sharing the properties of the parent densities.     

Bayes prediction of number of failures in weibull samples

This work is concerned with the Bayesian prediction problem of the number of components which will fail in a future time interval, when the failure times are Weibull distributed. Both the 1-sample and the 2-sample prediction problems are dealed with, and some choices of the prior densities on the distribution parameters are discussed which are relatively easy to work with and allow different degrees of knowledge on the failure mechanism to be incorporated in the predictive procedure. Useful relations between the predictive distribution on the number of future failures and the predictive distribution on the future failure times are derived. Numerical examples are also given.     

网络渠道交易价值的实证分析——以L品牌手机淘宝BtoC店为例

以国产手机著名品牌L品牌淘宝BtoC店为例,按入口时搜索的关键词的特点,将来访顾客分成渠道忠诚访客和品牌忠诚访客,连续30天观察总的页面浏览量、2种类型的访客数量、分别带来的成交量,以及每日询盘量。对渠道忠诚顾客带来的成交占总成交的比例进行均值估计,得知其比例为38.3%;对2类访客与相应的成交量分别作回归分析,结论均为有显著影响。文章在此基础上对提高网店价值,提出了相应的建议。     

独立反应数及独立反应的确定

根据线性代数原理阐述了复杂反应系统的独立反应数及独立反应式的确定方法     

法官员额制度比较分析

我国的法官人数多、素质良莠不齐、地位低、待遇薄。提高法官素质，塑造精英化的法官群体，是司法改革最基本、最迫切的任务之一。而科学的法官员额制度则是实现法官精英化、专业化不可缺少的前提条件，是法官制度的基础。对中外法官员额制度进行比较分析，有助于完善我国法官员额制度。     

论以人为本的价值哲学意蕴

以人为本是科学发展观的一个原则或根本要求。从马克思主义价值哲学新视角审视以人为本,其哲学意蕴在于:现实的人是以人为本的价值本位,现实的人是指在社会关系中从事实践活动的人,是个体主体、群体主体和类主体的统一;人的主体性是以人为本的价值原则,它意味着人是人的世界及其历史的根本、主体,还意味着人本身就是自己独立人格的主体;人的物质需要和精神需要的满足是以人为本的价值目标;集体主义价值观是以人为本的价值导向,它要求把个人看作手段和目的的统一,同时又要把集体对个人的关心、爱护、尊重程度和对个人正当利益的满足程度作为衡量集体真实性和先进性的尺度。     

城市大气中污染物扩散的施密特数研究

借助反问题方法对风洞实验工况选取不同施密特数进行数值模拟试验,分析比较了不同施密特数时街道峡谷内各个观测点的数值模拟数据和风洞实验数据.研究结果表明,城市街道内大气污染物扩散的施密特数为0.7～0.8.