分布式入侵检测系统修复机制

提出了一种基于移动代理的新型分布式入侵检测系统的修复机制。该系统是针对WAN环境设计的,数据的处理通过各节点所设置的代理来进行分布式计算,能实现全网络范围内的入侵检测功能,具有良好的可移植性;对网络系统和主机的资源占用较低,减少出现网络瓶颈的可能。讨论了系统各个层次上的修复和抗毁功能,实验证明,该机制具有较好的性能。     

浅谈译文的准确性与通俗性

翻译是一种特殊的创作 ,译者在翻译中除了要忠实于原作者外 ,还需充分重视译文读者群的文化、风俗习惯和语言环境 ,也即译文的通俗性 ,以争取达到最佳的翻译效果     

使用万用电表测量时的误差

本文以500型万用电表为例，阐述用电表进行测量时所引入的误差，这对正确合理地使用电表有着重要的作用。     

任务类型对大学英语学生口语准确性的影响

调查了不同的任务类型（个人任务、陈述任务和做决定任务）对大学英语学生口语准确性的影响。实验结果表明,任务类型对语言运用的准确度有一定的影响,个人任务的准确度最高,做决定任务次之,陈述任务最低。文章分析了不同任务的特性和认知要求,在此基础上解释了实验结果,并指出了这类研究对促进大学英语口语教学的现实意义。     

机器设备评估中实体性贬值率计算方法

机器设备评估方法中的核心问题是实体性贬值率的计算,通过对目前计算方法的深入分析,发现观察法和年限法存在随意性太大、准确度不高的问题。作者提出精度指数法计算实体性贬值率,用实例分析该方法的计算应用过程,该方法能够改变随意评估的现象,其科学准确性、较强的操作性使评估结果更接近公允价值,为机器设备评估定价提供更加有效的技术方法,获得业内人士的广泛认可。     

浅析数控铣床刀具半径补偿功能

在数控铣削加工中,合理设置刀具半径补偿值,灵活应用刀具半径补偿功能,不仅对简化数控编程有着非常重要的意义,而且能够解决加工中出现的工件轮廓尺寸变化、刀具磨损等因素引起的加工误差问题,提高加工效率。本文主要探讨刀具半径补偿功能在数控铣削加工中的应用。     

Asylum‐seeking minors in interpreter‐mediated interviews: what do they say and what happens to their responses?

This study explored how asylum‐seeking minors report information when formally interviewed. Twenty‐six Russian‐speaking minors (mean = 16.0 years of age) were individually interviewed by officials assisted by one of 18 interpreters. A qualitative analysis of the responses was used to develop categories that were then analysed quantitatively to elucidate characteristics of the questions asked by the officials, the minors' responses to them and the accuracy with which the minors' responses were rendered. The asylum‐seeking minors distinguished themselves as active participants. They appeared eager to disclose relevant information despite being asked many potentially contaminating questions. Most of the children's responses were accurately rendered, but mistranslations can affect the fact‐finding process substantially. Both the minors and the officials involved in the asylum‐seeking process need to recognize that both the questions asked and the responses given may be influenced by the third parties involved, i.e. the interpreters.     

非轴对称速度分布简化模型及其在电磁流量计数值计算中的应用

本文提出一种能够近似地描述圆管内湍流速度分布的简化模型,并以此为基础,对于非轴对称流速分布对电磁流量计输出信号的影响进行了数值计算。计算结果与仪表实际使用中所反映出来的情况基本吻合。因此,本文的研究结果不仅有一定的理论意义,而且对于电磁流量计的安装、校准以及结构设计具有实用参考价值。     

DSM-IV-J Criteria: A Scoring Error That May Be Modifying the Estimates of Pathological Gambling Among Youths

Previous studies have shown that prevalence rates among youths may be inflated due to a problem in understanding the questions of the SOGS-RA and DSM-IV-MR-J. This article reports another reason why prevalence rates of pathological gambling among youths may be inflated. In 1992, Fisher proposed 9 criteria (the DSM-IV-J) for diagnosing pathological gambling among youths, and formulated 12 questions (the Test questions) to identify the presence of these criteria. An analysis of a sample of studies using the DSM-IV-J reveals that some researchers have incorrectly used the 12 Test questions instead of the 9 criteria, which may have led to overestimated prevalence rates among youths. Other measurement issues may also be contributing to the overestimation of problem gambling in young people. The methodological implications of these issues are discussed.     

The automatic percentile method: Accurate confidence limits in parametric models

The problem of constructing confidence limits for a scalar parameter is considered. Under weak conditions, Efron's accelerated bias-corrected bootstrap confidence limits are correct to second order in parametric familles. In this article, a new method, called the automatic percentile method, for setting approximate confidence limits is proposed as an attempt to alleviate two problems inherent in Efron's method. The accelerated bias-corrected method is not fully automatic, since it requires the calculation of an analytical adjustment; furthermore, it is typically not exact, though for many situations, particularly scalar-parameter familles, exact answers are available. In broader generality, the proposed method is exact when exact answers exist, and it is second-order accurate otherwise. The automatic percentile method is automatic, and for scalar parameter models it can be iterated to achieve higher accuracy, with the number of computations being linear in the number of iterations. However, when nuisance parameters are present, only second-order accuracy seems obtainable.