仡佬族传统体育活动的文化学分析

通过对仡佬族传统体育活动进行考察,认为仡佬族在漫长的历史进程中,创造、开展了具有鲜明特色的体育活动,形成了独有的传统体育文化,它不仅反映出仡佬族长期形成的生产生活方式与社会习俗,更使其具有了多样性、节庆性、宗教性、全民性等文化色彩.     

中国翻译理论五十年:回顾与展望

本文对过去50年的中国翻译理论做了有益的回顾.它大致可以分为文革前与后两个时期.傅雷的"神似说"到钱钟书的"化境说"可视作是对传统信、达、雅的突破.文革前的翻译理论总体上缺乏系统性和科学性,局限于经验式、感悟式的散论.改革开放后中国的翻译理论有了长足的进步.先后经历了80年代以介绍西方翻译理论为主的觉醒期,90年代反思期,新世纪之初的全面建设期,正逐步走向成熟.展望未来,翻译研究必将有着更广阔的发展空间,中西译论的有机结合和文化研究将会更加引人注目.     

Nonparametric Estimation for Random Censored Data Based on Ranking Set Sampling

In the case where the population distribution is unknown, the Kaplan–Meier estimator of the reliability function based on a ranked set sample with random right-censored data is first proposed. It is shown to be a unique self-consistent estimator. Then, the censored RSS estimator of the population mean is constructed. A simulation study is conducted to compare the performance of the proposed estimators with the corresponding estimators based on a simple random sample. It is shown that the ranked set sampling has higher efficiency. Finally, the proposed method is applied to a renal carcinoma study.     

Inference on System Reliability for Independent Series Components

In this article, we study inferences for reliability functions of the system having two components connected in series. Suppose that the lifetime of one component has a lognormal distribution. Lognormal, exponential, and weibull distributions are considered for the lifetime of the other component. Using the generalized inference approach, we obtain confidence intervals of our interested parameters with good coverage. Some frequentist properties in small-sample cases and large-sample cases are proved.     

New Goodness of Fit Tests Based on Stochastic EDF

A new approach of randomization is proposed to construct goodness of fit tests generally. Some new test statistics are derived, which are based on the stochastic empirical distribution function (EDF). Note that the stochastic EDF for a set of given sample observations is a randomized distribution function. By substituting the stochastic EDF for the classical EDF in the Kolmogorov–Smirnov, Cramér–von Mises, Anderson–Darling, Berk–Jones, and Einmahl–Mckeague statistics, randomized statistics are derived, of which the qth quantile and the expectation are chosen as test statistics. In comparison to existing tests, it is shown, by a simulation study, that the new test statistics are generally more powerful than the corresponding ones based on the classical EDF or modified EDF in most cases.     

Hypothesis Testing and Confidence Regions for the Mean Sojourn Time of an M/M/1 Queueing System

This article discusses testing hypotheses and confidence regions with correct levels for the mean sojourn time of an M/M/1 queueing system. The uniformly most powerful unbiased tests for three usual hypothesis testing problems are obtained and the corresponding p values are provided. Based on the duality between hypothesis tests and confidence sets, the uniformly most accurate confidence bounds are derived. A confidence interval with correct level is proposed.     

Confidence Intervals of Performance Measures for an M/G/1 Queueing System

In this article, we discuss constructing confidence intervals (CIs) of performance measures for an M/G/1 queueing system. Fiducial empirical distribution is applied to estimate the service time distribution. We construct fiducial empirical quantities (FEQs) for the performance measures. The relationship between generalized pivotal quantity and fiducial empirical quantity is illustrated. We also present numerical examples to show that the FEQs can yield new CIs dominate the bootstrap CIs in relative coverage (defined as the ratio of coverage probability to average length of CI) for performance measures of an M/G/1 queueing system in most of the cases.