大学英语听力教学初探

听力教学是英语教学的重要组成部分。本文探讨了当前大学生听力教学中存在的种种问题, 在此基础上,提出听力教学对策。     

Is There a Digital Future Landscape Terrain?

Lorens Holm and Paul Guzzardo speculate on a future landscape enriched by digital culture. Rather than provide sanctuary or comfort zones in the event of global environmental collapse, laser\net is a model for exploring landscape terrains that establish ‘agora’-like meeting places as a basis for electronic exchange and progression. Re-mix platforms thus become collaborative sites for all who seek to engage in this rurality. Copyright © 2007 John Wiley & Sons, Ltd.     

电子激励器对管理激励的启发探讨

电子激励器和管理激励,同样使用"激励"一词,存在着联系.首先简单介绍了电子激励器,分析电子激励器与双因素理论的联系,在此基础上提出了管理激励器的激励模型,分析了企业环境对激励机制的影响.     

京沪高铁隧道背景下列车车体动态气密性当量泄漏面积阈值特征

针对静态气密参数无法真实反映动车组过隧道时的气密性能问题和车内压力舒适性问题。基于一维可压缩不等熵非定常流动模型的广义黎曼变量特征线法,数值模拟车外压力;建立了高速列车通过隧道时模拟车内压力波的“当量泄漏面积”法。以京沪客运专线为背景,研究了中国某型号标准动车组的动态当量泄漏面积阈值随动车组编组长度、速度和是否交会的变化规律;给出了动车组在不同速度等级下符合不同舒适性标准时单节车厢动态当量泄漏面积建议值。研究表明:动车组的当量泄漏面积阈值的最小值随着车速的增加而减小;头/尾车和中间车最严格的当量泄漏面积建议值分别为10.3 cm^2和18.9 cm^2,为高速动车组气密性设计及优化各部件气密性能提供基础性技术参考。     

盲人手机输入方案的交互设计和评估

以交互设计模式对盲人手机界面的输入方式进行了研究,按照交互设计流程对盲人手机进行需求分析,提出了盲人手机输入方式的两个候选方案,并利用非语音声音表示数据的听觉显示技术在Windows图形界面上建立了原型.利用原型以迭代方式对方案进行了两轮评估和改进,展望了候选方案的研究前景.     

视频媒体设计与大众化传播

在科学技术的迅速发展的今天,新的传播媒介的产生和普及的周期也大大的缩短了,至今,传播媒体已经发生了翻天覆地的变化,报业、电台、电视,到现代互联网的普及,一次次的显示了新兴媒体革命的威力。在当今这个传播媒介发生巨大变化的时代,我们的视频媒体设计如何迎接时代的挑战?如何与观众产生共鸣?如何使中华文化的精髓得到大众化的传播,从而弘扬民族的优良文化?本文所要探讨的视频媒体设计是针对于电视、网络这样的视听载体而言,在广泛运用新兴媒介的时代,在视觉传达设计的范畴中,我们应该如何应对当代视频媒体设计的大众化传播。     

基于非语音声音的听觉用户界面研究

研究了非语音声音用于用户界面的原理及其可能的形式，并设计与实现了一个听觉用户界面原型系统——盲人手机界面，其核心结构为听觉菜单．综合使用语音和非语音声音作为听觉显示，主要用非语音作为操作的及时反馈，其次用语音作为上下文帮助提示．结果表明，非语音是设计听觉用户界面的可行途径．     

Predicting code efficiency of radiotelegraphers by means of aural tests.

Ten aural tests (including adapted versions of the six-part Seashore Measures of Musical Talents, a Dot Perception Test, Code Distraction Test, Army Radio Code Test, and Signal Corps Code Aptitude Test) were administered to 400 entry radio operator trainees. In addition the Radio Operator Aptitude Index, based only on printed tests, was used. Scores were correlated with a code receiving performance criterion after 14 weeks of training. The best single predictor was the ARC (r = .44); a combination of the ARC, Rhythm Discrimination, and Code Distraction Tests, yielded a multiple R of .513. "… aural tests are likely to achieve a degree of prediction of later code proficiency not possible by printed tests alone." (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Study on the critical diameter of the subway tunnel based on the pressure variation

When the subway train operates at a speed higher than 100 km/h,the corresponding aerodynamic issue becomes severe.To meet the future requirement for the speedup of subway trains,a research on the critical diameters of the subway tunnel for trains operating at 120 and 140 km/h has been performed based on passengers’aural discomfort caused by rail tunnel pressure variation.A three-dimensional computational fluid dynamic approach has been adopted for analysis.Meanwhile,trains with different airtight indices are considered and the pressure variations inside and outside the trains are both under investigation.Based on the corresponding criteria for different airtight indices,critical tunnel diameters for trains running at different speeds have been determined.This study would aid in the tunnel section design for future high-speed subway trains.