虚拟现实技术在预装配规划中的应用

将虚拟现实技术应用于产品预装配规划，结合CAD技术，提出了装配规划系统结构，开发了产品拟实装配环境，使设计者在设计阶段就能生动、随意模拟产品的装配过程，获取装配分析所需信息，以尽早发现产品可装配性及装配工艺中的问题，减少装配成本，缩短产品开发周期。     

一种确定系统动力学延迟函数类型的方法

在求得DELAYN中脉冲输入的输出表达式的基础上，作者得出了单位物质在DELAYN中的平均延迟时间和延迟时间方差的解析式、根据该解析式，作者提出了一种确定系统动力学延迟函数类型的方法。     

MIMO OFDM系统中基于MDL准则的均方根时延扩展估计

研究了MIMO OFDM系统中最小描述长度(MDL)准则在均方根时延扩展估计中的应用. 分析了多径分量功率和多径分量的自相关矩阵之间的关系, 使MDL可有效地应用于RDS估计. 该估计器能以较低的计算复杂度给出RDS、噪声方差、信道功率和信噪比等多个实时信道参数的准确估计. 根据估计的多径分量功率, 利用MDL准则获得了当前信道环境下的路径数及它们各自时延的估计; 根据路径数得到了噪声方差和各径功率的估计, 从而得到当前信道的功率时延谱和均方根时延扩展的估计. 仿真结果表明该估计器可有效对抗信道中信噪比变化和频率选择性的影响.     

基于分解的可视化功能规格说明及功能自动生成

针对软件模块，本提出了一种称为VSL的可视化规格说明语言，该语言模拟人的思维过程，将一个大规模复杂的问题分解为一系列较小规模的问题，然后独立解决每一个小规模问题，最后通过各小规模问题的求解综合而解决大规模问题，借助于计算机支持，VSL能实现软件模块的可视化描述与自动化生成，从而较大地改善软件的质量，提高软件的开发效率，本论述了VSL的简单定义，自动生成原理，并给出一个样例，指出了进一步的研究工作。     

Adaptive audio watermarking based on SNR in localized regions

In this paper, a novel localized audio watermarking scheme based on signal to noise ratio （SNR） to determine a scaling parameter a is proposed. The basic idea is to embed watermark in selected high inflexion regions, and the intensity of embedded watermarks are modified by adaptively adjusting a. As these high inflexion local regions usually correspond to music edges like sound of percussion instruments, explosion or transition of mixed music, which represent the music rhythm or tempo and are very important to human auditory perception, the embedded watermark is especially expected to escape the distortions caused by time domain synchronization attacks. Taking advantage of localization and SNR, the method shows strong robustness against common problems in audio signal processing, random cropping, time scale modification, etc.     

吊环十字支撑类动作的“时间”和“角度”状况及对训练的思考——昆明全国体操冠军赛吊环分析

对1995年9月昆明全国体操冠军赛吊环比赛中3个十字支撑动作的“时间”和“角度”状况的观察与统计,分析了吊环十字支撑类动作存在的问题,为进一步探讨发展我国吊环技术水平的途径,提出了训练中提高十字支撑类动作的“时间”和“角度”规格的思路、措施和建议.     

汇编语言写音乐程序

利用汇编语言开发了一个具有一定娱乐性和实用性的音乐程序。     

论以"与时俱进"的思想统领高校就业指导工作

本文论述了“与时俱进”的思想是大学生就业指导理论和实践模式发展演变中的永恒主题,对高校确立科学发展的就业指导观意义重大,并就高校在就业指导中如何坚持“与时俱进”的思想提出了一些建议和设想。     

The effect of the simultaneous Prompting–Constant time delay instructional sequence on the teaching of early academic skills to students with intellectual disabilities

This study investigated the effectiveness of combining simultaneous prompting (SP) and constant time delay (CTD) (hereafter SP–CTD instructional sequence) in teaching early academic skills to five students with intellectual disabilities (ID). A multiple-probe design was used to examine the functional relationship between the SP and CTD instructional sequence and the acquisition of letter–sound correspondences and number recognition. The results showed the effectiveness of the procedure, as all students acquired their target skills in 7–12 sessions, with an average error rate of 8%. Maintenance effects were assessed at 2, 6, and 10 weeks after the intervention to measure participants’ retention of these acquired skills. Three students preserved their skills with 100% accuracy, while two students did so with more than 90% accuracy. The data indicate that instruction consisting of probe trials, 0-s trials, and 5-s trials leads to improvements in early academic skills among students with ID.     

基于短时平均幅度的语音端点检测的改进

介绍了计算机语音处理中端点检测的方法,分析了短时平均幅度的语音端点检测的不足之处,并提出改进方法,最后给出实验结果。