由数字所构成的吉祥语的特征及其功能

吉祥文化是民俗文化中的重要组成部分。作为一种重要的吉祥文化形式 ,吉祥语普遍存在于人们的日常生活中。而在我们所熟知的吉祥语中 ,有相当一部分是由数字所构成的。这些由数字所构成的吉祥语有其独有的构成形式和特征 ,正在社会生活中承载着激励、调节社会关系、促进社会交往等重要功能。作为一种传统的文化现象 ,由数字所构成的吉祥语既有其存在的合理性的一面 ,也不可避免地存在着消极影响 ,对此我们要辩证地看待。     

培养体育专业学生篮球裁判能力的途径与方法

采用文献资料法和逻辑推理法,对篮球裁判员的能力结构进行了分析与归纳,简述了培养普通高校体育专业大学生篮球裁判能力的途径与方法     

静电旋风除尘器性能的研究

在分析离心和静电分离综合作用的基础上，建立了修正的平衡轨道模型．利用该半经验模型．可较好地说明静电分离和离心分离作用两者对静电旋风除尘器除尘性能的影响．利用所建立的除尘实验装置，系统地进行了静电旋风除尘器性能实验研究，着重分析了除尘器进口风速、工作电压、电晕极型式和布置方式等因素对除尘器性能的影响．     

体道与解脱——洪州禅对慧能心性论的现实性提升

洪州禅的代表人物马祖道一提出“平常心是道”的观点,鼓励众生在日常生活中体悟真如佛性,获得解脱。道一的门下进一步发扬了这一思想。他们饱含个性的禅法,从现实的角度充实和发展了六祖慧能“识心见性”、顿悟成佛的心性论,从而推进了佛教中国化的进程。     

讲故事艺术在现代传播中的运用--《雾都夜话》的特色化道路

《雾都夜话》作为重庆电视台十年未衰的地方节目,一直引人关注。节目成功的一个重要因素就在于它采用了传统艺术中"讲故事"的叙述方式,使之区别于现代传播中的一般电视剧和电影,开创了自己的特色化道路。     

Temporal Aggregation of Stationary and Non-stationary Continuous-Time Processes

Abstract.  We study the autocorrelation structure of aggregates from a continuous-time process. The underlying continuous-time process or some of its higher derivative is assumed to be a stationary continuous-time auto-regressive fractionally integrated moving-average (CARFIMA) process with Hurst parameter H . We derive closed-form expressions for the limiting autocorrelation function and the normalized spectral density of the aggregates, as the extent of aggregation increases to infinity. The limiting model of the aggregates, after appropriate number of differencing, is shown to be some functional of the standard fractional Brownian motion with the same Hurst parameter of the continuous-time process from which the aggregates are measured. These results are then used to assess the loss of forecasting efficiency due to aggregation.     

Criteria for the equality between ordinary least squares and best linear unbiased estimators under certain linear models

A new necessary and sufficient condition is derived for the equality between the ordinary least-squares estimator and the best linear unbiased estimator of the expectation vector in linear models with certain specific design matrices. This condition is then applied to special cases involving one-way and two-way classification models.     

On aliasing and generalized defining relationships of factorial arrangements

The concepts of defining contrast (DC), generalized defining relationship (GDR) and aliasing structure (AS) are now well established in the terminology of regression analysis and factorial design theory. There is no complete agreement in the literature about the meaning of regular and irregular fractional factorial designs. This paper provides a workable definition of a regular fraction from a symmetrial prime-powered factorial. It characterizes the uniqueness of the GDR for fractions from the most general factorial. Results are also présentés on the uniqueness of the GDR for regular designs, on orthogonality aspects of regular and irregular designs, and on group-theoretic generation of the complete aliasing structure. Examples are provided to illustrate the developments.     

Moment properties of estimators for a type 1 extreme-value regression model

A regression model is considered in which the response variable has a type 1 extreme-value distribution for smallest values. Bias approximations for the maximum likelihood estimators are pivm and a bias reduction estimator for the scale parameter is proposed. The small sample moment properties of the maximum likelihood estimators are compared with the properties of the ordinary least squares estimators and the best linear unbiased estimators based on order statistics for grouped data.