Impact of speech presentation level on cognitive task performance: implications for auditory display design

Speech displays and verbal response technologies are increasingly being used in complex, high workload environments that require the simultaneous performance of visual and manual tasks. Examples of such environments include the flight decks of modern aircraft, advanced transport telematics systems providing in-vehicle route guidance and navigational information and mobile communication equipment in emergency and public safety vehicles. Previous research has established an optimum range for speech intelligibility. However, the potential for variations in presentation levels within this range to affect attentional resources and cognitive processing of speech material has not been examined previously. Results of the current experimental investigation demonstrate that as presentation level increases within this ‘optimum’ range, participants in high workload situations make fewer sentence-processing errors and generally respond faster. Processing errors were more sensitive to changes in presentation level than were measures of reaction time. Implications of these findings are discussed in terms of their application for the design of speech communications displays in complex multi-task environments.     

UG在无盘站机房上的教学与使用问题分析及解决方案

对UG软件功能进行了简单介绍,对UG在无盘站上教学与使用过程中遇到的问题进行了分析并提出解决方案。针对使用中遇到的运行问题,详细介绍了通过VB编程的方法解决UG在无盘站上运行问题。     

基于VB6.0的汽车点火线圈测试系统软件设计

VB因其简单易学，功能强大而倍受测控软件开发人员的青睐。本文针对作者在开发点火线圈测试台软件的过程中遇到的重点、难点问题—串口通讯、端口读写、数据库操作等，介绍了用Visual BasiC 6．0实现的方法。     

传感器的测试技术

本文介绍了以VFP6．0软件，应用在Insb伪币检测传感器中，实现了电脑对传感器的阻值进行自动检测和排序，大大地提高了生产效率，达到理想效果。     

生物电场分析可视化方法及实现

在生物电场分析过程中,每次运算都将产生大量的数据(如电导率、电阻率分布),这些数据反映的规律不直观,不便于理解.如何将这些计算结果很好的以图形方式显示出来,直观地看出电导率、电阻率等参数分布,这对计算结果的分析、理解都有着重要的作用.本文主要从等值线及色彩地形图的绘制两个方面讲述了电阻抗成像中有限元后处理的实现,并用Visual C + + .NET结合OpenGL编写了有限元后处理软件,解决了等值线及色彩地形图的绘制问题.     

特征可视化生成系统

本文介绍特征可视化生成系统ＶＰＳＦ（ＶｉｓｕａｌＰｒｏ－ｄｕｃｔｉｏｎＳｙｓｔｅｍｆｏｒＦｅａｔｕｒｅ）的菜单结构、屏幕组织、工具箱按钮、主要工具功能以及应用实例。     

Animating visible speech and facial expressions

We present four techniques for modeling and animating faces starting from a set of morph targets. The first technique involves obtaining parameters to control individual facial components and learning the mapping from one type of parameter to another through machine learning techniques. The second technique is to fuse visible speech and facial expressions in the lower part of a face. The third technique combines coarticulation rules and kernel smoothing techniques. Finally, a new 3D tongue model with flexible and intuitive skeleton controls is presented. The results of eight animated character models demonstrate that these techniques are powerful and effective.     

基于VFP6.0的多媒体技术应用研究

介绍在信息管理系统开发过程中处理图形文件、音频文件和视频文件的方法及应用。     

多媒体视听教学设备配置的探讨

介绍了两种多媒体视听教学设备的配置方案，并对这两种多媒体视听教学设备的配置方案从视觉效果，性能价格比，设备可靠性等方面进行了讨论。     

碱性氨基酸辐射保护机理的电子自旋共振研究

本文研究了组氨酸和精氨酸对胸腺嘧啶的辐射保护机理。用ESR方法和分子轨道计算确证其辐射保护是由于电子清除和从胸腺嘧啶阴离子向碱性氨基酸的转移。碱性氨基酸的亲电子性能随质子化程度而异,在pH=7的条件下,组氨酸对胸腺嘧啶的辐射保护机理可能是电子转移与氢原子转移的协同过程。