热奈特的类文本理论及其效应

杰拉德·热奈特的类文本理论受到中西方学界的关注与重视,一些学者对该理论进行了一定的补充和修正工作,也有不少学者将其用于文学研究。类文本理论视阈下,文学研究的对象为环绕于文本边缘的类文本要素,如作者的署名、序言、献词、题记、版权页信息等。将作者重新纳入批评视野,类文本理论有效修正了文本理论将文本与作者相割裂的不当做法;将出版商引入批评框架,类文本理论不仅拓展了传统文学批评体系,还起到限制读者过度阐释的目的。同时,类文本理论促进了叙事学的进一步发展,使文学研究从文本中心走向文本边缘,并将文学的内部研究和外部研究相结合,从而推进了文学批评理论的发展。鉴于类文本与文本的互存关系,某些类文本和文本之间的界限模糊不清,它们在具备类文本属性的同时,又不乏文本的属性,而这一特性又恰恰佐证了类文本之于文本而存续的重要性。     

文化时代的文化力和企业文化力

人类经历了政治时代、经济时代和文化时代。在一切时代,人类的发展都依赖生产力的发展。在政治时代,生产力主要借助政治力而发生作用;在经济时代,生产力主要借助经济力而发生作用。在文化时代,生产力主要借助文化力而发生作用。文化时代的文化力,又突出表现为企业文化力。企业文化力极大地放大了企业创造现代社会生活的能力,成为生产力的关键能力,使企业大大提高了自由、自觉活动的能力。企业文化力的培育,成为企业追求的一个目标;企业文化力的大小,成为企业活动能力的标志。     

论行政处罚的“一事不再罚”原则

"一事不再罚"原则的规定是为了防止处罚机关滥用职权对相对人同一违法行为以同一事实理由处以多次行政处罚."一事"指符合一个行政违法构成要件的行为;"不再罚"指除非法律有特别规定,行政主体只能给予一次处罚.复杂的事数形态和法条竞合领域也应贯彻"一事不再罚"原则.     

r型槽与螺旋槽干式气体密封性能对比研究

为了改善螺旋槽干式气体端面密封性能,提出了一种由螺旋槽和圆弧槽组合的r型槽干式气体密封,并根据气体润滑理论建立了r型槽干式气体密封数值分析模型,定义了r型槽的主要几何结构参数,采用有限元方法求解雷诺方程,获得了端面气膜压力分布,分析了转速、压力对端面开启力、泄漏量等密封性能参数的影响规律,并与螺旋槽干式气体密封进行了对比研究。结果表明,r型槽干式气体密封中圆弧槽有回流作用,与螺旋槽干式气体密封相比有较小的泄漏量;r型槽干式气体密封更适用于低压高速场合。     

Testing independence based on Bernstein empirical copula and copula density

In this paper we provide three nonparametric tests of independence between continuous random variables based on the Bernstein copula distribution function and the Bernstein copula density function. The first test is constructed based on a Cramér-von Mises divergence-type functional based on the empirical Bernstein copula process. The two other tests are based on the Bernstein copula density and use Cramér-von Mises and Kullback–Leibler divergence-type functionals, respectively. Furthermore, we study the asymptotic null distribution of each of these test statistics. Finally, we consider a Monte Carlo experiment to investigate the performance of our tests. In particular we examine their size and power which we compare with those of the classical nonparametric tests that are based on the empirical distribution function.     

An integral formula for the distribution of self-normalized Gaussian random samples

Given i.i.d. Gaussian random variables and after standardizing the sample by subtracting the sample mean and dividing it by the sample deviation, we obtain an integral formula for the distribution of these self-normalized variables. Using geometrical arguments, we obtain the distribution of each and the joint distribution of two of them. These formulas can be used to calculate the expected value of the particular type of Cramér von Mises statistic to test normality.     

C2C 环境中顾客重复购买行为的实证与建模

通过分析C2C 商家的交易记录, 发现单个商家的顾客重复购买次数呈幂律分布, 这与重复购买理论以往得到的购买次数为负二项分布的结论不同. 基于C2C 交易的实际情况, 建立了具有购买强化效应的购买概率模型, 模型很好的解释了顾客重复购买率呈幂律分布的现象.实证和模型表明, C2C 环境中, 顾客购买次数的分布具有很长的尾部, 大量顾客有低的购买次数, 而少数顾客有很高的重复购买次数;模型还揭示了巨大的潜在顾客数量和顾客多次购买的强化效应是造成重复购买分布呈幂律形式的重要原因.     

初等r-循环矩阵的几个性质

给出了初等ｒ－循环矩阵可逆的充要条件及逆矩阵的表达式;对奇异的初等ｒ－循环矩阵给出了Ａ的一个ｇ－逆Ｇ（满足ＡＧＡ＝Ａ,ＧＡＧ＝Ｇ）及Ｍｏｏｒｅ－ｐｅｎｒｏｓｅ广义逆矩阵的表达式．     

Higher order inference for stress–strength reliability with independent Burr-type X distributions

In this paper, a small-sample asymptotic method is proposed for higher order inference in the stress–strength reliability model, R=P(Y<X), where X and Y are distributed independently as Burr-type X distributions. In a departure from the current literature, we allow the scale parameters of the two distributions to differ, and the likelihood-based third-order inference procedure is applied to obtain inference for R. The difficulty of the implementation of the method is in obtaining the the constrained maximum likelihood estimates (MLE). A penalized likelihood method is proposed to handle the numerical complications of maximizing the constrained likelihood model. The proposed procedures are illustrated using a sample of carbon fibre strength data. Our results from simulation studies comparing the coverage probabilities of the proposed small-sample asymptotic method with some existing large-sample asymptotic methods show that the proposed method is very accurate even when the sample sizes are small.