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31.
本文通过对人类影响景观发育的思想、行为、方法和影响结果的分析,在理论上论证了人类对景观发育影响的显著性,引申到按照人类对景观影响的结果--景观变化梯度过于剧烈的话,景观系统将走向崩溃,进而提出人类对景观发育控制理念构建人-地协调的景观系统. 相似文献
32.
In this article we obtain some novel results on pairwise quasi-asymptotically independent (pQAI) random variables. Concretely speaking, let X1, …, Xn be n real-valued pQAI random variables, and W1, …, Wn be another n non negative and arbitrarily dependent random variables, but independent of X1, …, Xn. Under some mild conditions, we prove that W1X1, …, WnXn are still pQAI as well. Our result is in a general setting whether the primary random variables X1, …, Xn are heavy-tailed or not. Finally, a special case of above result is applied to risk theory for investigating the finite-time ruin probability for a discrete-time risk model with a wide type of dependence structure. 相似文献
33.
A variable sample size (VSS) scheme directly monitoring the coefficient of variation (CV), instead of monitoring the transformed statistics, is proposed. Optimal chart parameters are computed based on two criteria: (i) minimizing the out-of-control ARL (ARL1) and (ii) minimizing the out-of-control ASS (ASS1). Then the performances are compared between these two criteria. The advantages of the proposed chart over the VSS chart based on the transformed statistics in the existing literature are: the former (i) provides an easier alternative as no transformation is involved and (ii) requires less number of observations to detect a shift when ASS1 is minimized. 相似文献
34.
In the article, properties of the Bennett test and Miller test are analyzed. Assuming that the sample size is the same for each sample and considering the null hypothesis that the coefficients of variation for k populations are equal against the hypothesis that k ? 1 coefficients of variation are the same but differ from the coefficient of variation for the kth population, the empirical significance level and the power of the test are studied. Moreover, the dependence of the test statistic and the power of the test on the ratio of coefficients of variation are considered. The analyses are performed on simulated data. 相似文献
35.
This article proposes a CV chart by using the variable sample size and sampling interval (VSSI) feature to improve the performance of the basic CV chart, for detecting small and moderate shifts in the CV. The proposed VSSI CV chart is designed by allowing the sample size and the sampling interval to vary. The VSSI CV chart's statistical performance is measured by using the average time to signal (ATS) and expected average time to signal (EATS) criteria and is compared with that of existing CV charts. The Markov chain approach is employed in the design of the chart. 相似文献
36.
A multiple state repetitive group sampling (MSRGS) plan is developed on the basis of the coefficient of variation (CV) of the quality characteristic which follows a normal distribution with unknown mean and variance. The optimal plan parameters of the proposed plan are solved by a nonlinear optimization model, which satisfies the given producer's risk and consumer's risk at the same time and minimizes the average sample number required for inspection. The advantages of the proposed MSRGS plan over the existing sampling plans are discussed. Finally an example is given to illustrate the proposed plan. 相似文献
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38.
在我国社会经济发展的过程中,文学信息传播中语言文化的变异研究,其核心在于强调信息传播的过程中,除了注重翻译人员语言中体现的语言文化价值外,还要注重文化翻译人员的文化背景以及其翻译过程中体现的文学信息及实质感悟,并以此来掌握翻译人员在信息传播中所发挥的媒介作用。由此不难看出,文学信息在传播的过程中,针对不同地区、不同民族之间,有着促进文化交流的作用。基于相关因素的影响,文学信息在传播的过程中会发生一定的变化。在此,本文针对文学信息传播视角下的语言文化变异,做以下论述。 相似文献
39.
流行语语义变异分析 总被引:2,自引:0,他引:2
曹起 《渤海大学学报(哲学社会科学版)》2006,28(4):43-46
语言变异是一种普遍存在的社会语言现象。流行语中有相当一部分是通过语义的变异而产生的。流行语语义变异的特点主要表现为:语义映射、语义别解和语义模糊等。 相似文献
40.
习语一直以来都是同传译员在实践中的一个难点.拟从功能翻译理论角度,运用目的性法则、忠实性法则、连贯性法则,实例分析变译理论及其具体变译手法对同声传译中习语翻译的指导作用,并探讨功能翻译理论对同声传译中习语的变译处理尺度的约束和规范作用. 相似文献