抑制标签是基于客体的还是基于位置的抑制机制

联合cue-target范式和颜色stroop任务,来考查抑制标签的机制.结果表明:(1)相对与非线索化位置,对出现在线索化位置的颜色刺激的反应时不同;(2)颜色stroop干扰效应在线索化位置上发生减少,这说明抑制标签更有可能是一种基于客体的抑制机制,用来调节出现在线索化位置上的刺激加工,是依赖于执行网络的抑制机制.     

中国青年出版社与《红岩》的生产

本文运用文化研究和文化社会学的方法,以中国当代著名小说《红岩》作为案例,对中国当代文学重要生产机构——中国青年出版社的社会位置及工作程序进行了分析,说明出版机构在文学生产中的多重决定作用。     

α-鲁棒随机截流选址问题的模型和算法

由于选址决策的长期性,相关参数会随着时间而变化,所以选址问题存在很多不确定因素。本文通过不同的情景来处理截流问题中流量的不确定性,并结合随机优化和鲁棒优化,提出α-鲁棒随机截流选址模型。该模型规定了在各情景下的相对后悔值不超过α的条件下,使截得的流量的期望值最大,该条件称为α-鲁棒约束。本文将该模型建立成为一个线性0-1整数规划,并给出了改进型贪婪算法和拉格朗日启发式算法。最后,本文使用这两种算法对不同规模的截流选址问题进行了研究。     

The inverse 1-maxian problem with edge length modification

We consider the problem of modifying the lengths of the edges of a graph at minimum cost such that a prespecified vertex becomes a 1-maxian with respect to the new edge lengths. The inverse 1-maxian problem with edge length modification is shown to be strongly -hard and remains weakly -hard even on series-parallel graphs. Moreover, a transformation of the inverse 1-maxian problem with edge length modification on a tree to a minimum cost circulation problem is given which solves the original problem in . This research has been supported by the Austrian Science Fund (FWF) Project P18918-N18.     

广西产业集聚现状及对策研究

产业集聚是产业活动在空间的集中现象,对区域经济发展有着较强的促进作用。为测度广西产业集聚情况,分析其对经济发展的影响,计算了广西产业地方专业化指数和区域分工指数,并与全国其他省、市、区进行了比较,分析了广西近5年的产业集聚发展趋势。结果显示,广西产业集聚水平较低、优势产业较少且结构不合理,同时区域分工水平较低,但从趋势来看强势产业集聚程度开始增强。根据广西产业集聚现状,提出了相应的对策建议。     

An optimal sign test for one-sample bivariate location model using an alternative bivariate ranked-set sample

The aim of this paper is to find an optimal alternative bivariate ranked-set sample for one-sample location model bivariate sign test. Our numerical and theoretical results indicated that the optimal designs for the bivariate sign test are the alternative designs with quantifying order statistics with labels {((r+1)/2, (r+1)/2)}, when the set size r is odd and {(r/2+1, r/2), (r/2, r/2+1)} when the set size r is even. The asymptotic distribution and Pitman efficiencies of these designs are derived. A simulation study is conducted to investigate the power of the proposed optimal designs. Illustration using real data with the Bootstrap algorithm for P-value estimation is used.     

ON THE CHANGE POINT OF THE MEAN RESIDUAL LIFE OF SERIES AND PARALLEL SYSTEMS

This paper considers the mean residual life in series and parallel systems with independent and identically distributed components and obtains relationships between the change points of the mean residual life of systems and that of their components. Compared with the change point for single components, should it exists, the change point for a series system occurs later. For a parallel system, however, the change point is located before that for the components, if it exists at all. Moreover, for both types of systems, the distance between the change points of the mean residual life for systems and for components increases with the number of components. These results are helpful in the determination of optimal burn-in time and related decision making in reliability analysis.     

超宽带自组网中基于定位辅助的路由

将超宽带定位技术应用于超宽带自组网路由算法,通过定位得到网络拓扑,以距离作为路由查找的度量标准之一,限制了路由请求的范围,从而降低了网络的洪泛开销。超宽带精确定位的特点以及距离策略的运用使得路由算法的性能很大程度上得以改进,使用OPNET进行仿真实验证明了所提出算法的有效性。     

Simple and accurate inference for the mean of the gamma model

The two-parameter gamma model is widely used in reliability, environmental, medical and other areas of statistics. It has a two-dimensional sufficient statistic, and a two-dimensional parameter which can be taken to describe shape and mean. This makes it closely comparable to the normal model, but it differs substantially in that the exact distribution for the minimal sufficient statistic is not available. Some recently developed asymptotic theory is used to derive an approximation for observed levels of significance and confidence intervals for the mean parameter of the model. The approximation is as easy to apply as first-order methods, and substantially more accurate.     

对“点警制”的回顾与理性思考

结合"点警制"的产生及主要内容、产生的效果及不同评价,说明"点警制"在理论上和实践中存在的问题:"点警制"客观上缺乏充足的理论依据、"点警制"不符合公安机关的性质和特点、"点警制"的目标定位不准。但发现问题并不是就否定了其积极意义,如何在立法和实践中完善它应当成为研究重点。