解读媒体文化

在媒体文化充斥的当今社会 ,如何解读媒体文化日益为学界所关注。媒体文化的解读首先在于 :媒体对文本意义的建构有自己的规则和套路 ,它们可以用来诱导受众对文本意义的解读 ;其次 ,受众参与了信息意义的阐释和商讨 ,且受众是阐释意义的能动主体 ;最后 ,不但要检视媒体文化意义 ,而且也要检视意义产生的过程。     

Analysis of tensioned membrane structures considering cable sliding

In routine design of tensioned membrane st ructures, the membrane is gen erally modeled using space membrane elements and the cables by space cable eleme nts, with no sliding allowed between the membrane and the cables. On the other h and, large deflections are expected and sliding between the membrane and the cab les is inevitable. In the present paper, the general finite element code ABAQUS was employed to investigate the influence of cable sliding on membrane surface o n the structural behavior. Three analysis models were devised to fulfill this pu rpose: (1) The membrane element shares nodes with the cable element; (2) The cab le can slide on the membrane surface freely (without friction) and (3) The cable can slide on the membrane surface, but with friction between the cable and the membrane. The sliding problem is modeled using a surface-based contact algorithm . The results from three analysis models are compared, showing that cable slidin g has only little influence on the structure shape and on the stress distributio ns in the membrane. The main influence of cable sliding may be its effect on the dynamic behavior of tensioned membrane structures.     

圆柱蜗杆传动计算机辅助分析与仿真

本文以计算机图学中曲线曲面理论为基础,以数值方法代替解析方法,将三维空间啮合问题简化为三维平面啮合问题,对磨削加工圆柱蜗杆传动的设计,预测并分析各种啮合质量,正确选择各种设计参数等项进行了研究,并形成了相应软件包.     

此情可待成追忆 ——解读《第一次的亲密接触》

《第一次的亲密接触》运用网络时代的语汇，演绎了一个传统的爱情悲剧。它之所以受到当代青年的拥戴，是因为它既承袭了我国的传统文化，又具有时代的亮色，符合当代青年的审美趣味。     

Why the timing deficit hypothesis does not explain reading disability in adults

It has been proposed that the phonological coredeficit that is linked to reading failure hasas its underlying cause a deficit in temporalprocessing. In a multivariate investigationdesigned to examine the temporal processingdeficit hypothesis, thirty reading-disabled(RD) adults, thirty-two normally achievingadults and thirty-one normally achievingchildren (reading-level controls) wereadministered a comprehensive battery thatincluded a wide range of timing tasks, inaddition to reading and phonological measures. Although adults with RD displayed overallperformance that was below that of normallyachieving adults on most of the timing tasks,their performance was not differentiallyinfluenced by rate of stimulus presentation. Although the RD adults displayed the typicalpattern of impaired phonological awareness andpseudoword reading relative to reading-levelmatched children, the reading-disabled adultsoutperformed the children on the timing tasks. Finally, with the exception of continuousnaming, the timing tasks shared little variancewith phonological sensitivity and contributedlittle unique variance to word reading. Although these findings undermine the timingdeficit hypothesis, they do provide evidencefor the involvement of naming deficits inreading disability.     

语言与社会实体(英文)

语言与社会的联系是非常紧密的。该文将就这一问题具体分析语言的特征,影响语言的社会因素,文化因素以及语言与人类思维的关系。     

美国教师顾问计划的基本假设、实施模式及其启示

教师顾问计划是美国普通任课教师从事心理辅导活动的基本形式,与美国的辅导运动及教育改革有着密切的关系.文章介绍了教师顾问计划的基本假设与实施模式,以期为中国的中小学心理健康教育与课程改革带来有益的启示.     

Testing the spill-over hypothesis: meritocracy in enrolment in postgraduate education

This study contributes to the literature on educational transitions, specifically whether an equalising of opportunities at early educational transitions translates into more equal participation patterns at later stages (Spill-over versus maximally maintained inequality hypotheses). The case study approach used in this paper compares the enrolment profile of postgraduate students at a prestigious, research-led British university with the profile of the postgraduates’ undergraduate degree-awarding institution. The database for this research consists of government statistics and two purposefully administered surveys, one of undergraduate students (n = 709) and one of postgraduate students (n = 502). The study finds that the intake of new postgraduates is largely drawn from the most prestigious universities thus suggesting that graduates from lower tier institutions do not self-select themselves for further study at Oxford. The results lend support to the meritocracy hypothesis regarding the attainment levels of new postgraduate students and their propensity to gain government funding. There are, however, some discrepancies in transition patterns that advantage the already privileged. This lends support to the maximally maintained inequality hypothesis and suggests that there are social justice concerns in postgraduate education.

Regularizing query-based retrieval scores

We adapt the cluster hypothesis for score-based information retrieval by claiming that closely related documents should have similar scores. Given a retrieval from an arbitrary system, we describe an algorithm which directly optimizes this objective by adjusting retrieval scores so that topically related documents receive similar scores. We refer to this process as score regularization. Because score regularization operates on retrieval scores, regardless of their origin, we can apply the technique to arbitrary initial retrieval rankings. Document rankings derived from regularized scores, when compared to rankings derived from un-regularized scores, consistently and significantly result in improved performance given a variety of baseline retrieval algorithms. We also present several proofs demonstrating that regularization generalizes methods such as pseudo-relevance feedback, document expansion, and cluster-based retrieval. Because of these strong empirical and theoretical results, we argue for the adoption of score regularization as general design principle or post-processing step for information retrieval systems.

对外汉语教学初级阶段教学模式的考察与探索

国内对外汉语教学普遍采用的是"分技能教学模式",但是这一模式的弊端已经逐渐显现并影响了教学效果。在输入、输出假说,中介语理论,认知理论等的指导下,改为以输入、输出并重,即"以综合为主、听说合一、加强阅读"的新模式,同时解决实施条件和教材等问题,会更适合教学现状,也能给教学模式的质变提供前提。