摘要：Recently service orientation is becoming a mainstream approach for building large scale software systems. A key requirement in service-oriented design is the dependability of service. It stipulates that the behavior of services is controllable. Formal models can aid in constructing software in a dependable manner. They can describe ser- vices precisely and compose them together consistently. This paper presents a strategy for service realization based on a novel layered formal model. When a service is provided or required via internet, the semantic consistency becomes critical issue, Our architecture tackles the issue by proposing a novel scheme： defining contract of a service to keep semantic information. Although service-oriented design is our prime target, the contract models, to a large extent, are independent of the framework of design and therefore applicable to large scale software design in general.

摘要：为改善运动想象脑电信号特征提取的自适应性和实时性,提出一种基于希尔伯特-黄变换(HHT)与共空域子空间分解算法(CSSD)的特征提取方法(HCSSD).在对脑电信号进行预处理的基础上,定义一种相对距离准则优选脑电极组合;计算脑电的Hilbert瞬时能量谱和边际能量谱,以获取脑电的时-频特征,并基于CSSD提取其空域特征,采用串行特征融合策略得到脑电的时-频-空特征;设计学习矢量量化神经网络分类器,实现脑电数据分类.在训练集与测试集间隔一周且减少导联数量的情况下,基于HCSSD对左手小指和舌头的运动想象ECoG脑电数据的平均识别率为92%.实验结果表明:HCSSD在增强特征提取方法的自适应性、改善实时性的同时,提高了脑电信号识别率,为便携式BCI系统在康复领域的应用创造了条件.

摘要：针对不同领域仿真工具模型的重用互换需求,欧洲仿真界提出了功能样机可交换接口规范Functional Mock-up interface for Model Exchange(FMI)。基于FMI接口规范,详细分析了功能样机可交换模型的结构与功能,研究了规范对仿真模型变量、方程和仿真算法的描述,并在多领域物理系统建模仿真平台MWorks中设计了FMI接口,实现了MWorks模型的重用,扩展了MWorks模型的使用范围。目前,MWorks是国内唯一支持该规范的建模仿真工具。

摘要：综述了导热脂、导热胶黏剂、导热橡胶、导热胶带及相变材料等几类界面导热材料(TIMs)的组成成分、制备方法、主要性能、应用领域及其优化设计方法,并对国内外界面导热材料的发展进行了展望。

摘要：Design and implementation of a personal computer (PC) based measurement circuits & system that containing signals’ sensing and generation are demonstrated in this study. The instrument can be easily operated via a user-friendly interface consisted of some functional keys displayed on the PC screen. Compact design of the hardware for the two units (signals’ sensing and generation) is made in a plug-in style of PC input/output (I/O) card so that no extra space for the instrument is needed. Design concepts for the hardware and software of the instrument are described. Functional performances of the setup of signals’ sensing and generation are tested. The results show user-friendly function and well-behaved performance for the package design.

摘要：This study is a preparation phase for visualization of utilized information using ergonomic user interface and standardization of elements for anti-air radar screen. Therefore, we investigated the instances of anti-air radar screen for air defense weapon system for defense advanced country. Based on the collected data, we compared and analyzed the air defense weapon system radar screen design. In addition, we carry out a research for layout, configuration, standardization and design of the radar screen’s elements. Ultimately, it is essential to share a variety of battle field conditions such as enemy threat, enemy/friendly information, terrain information that can be effectively recognized. In this paper, we conduct case study for ergonomically development of automated/standardized radar screen. It is expected that this research improves the situational awareness and reduces the user’s task load.

摘要：首先介绍了闪变的概念及电压闪变仪的工作原理,然后介绍了虚拟仪器软件LabVIEW及SimulationinterfaceToolkit(SIT),利用MATLAB/Simulink和LabVIEWSimulationinterfaceToolkit对电压闪变监测仪进行了设计与仿真。LabVIEWSIT可以快速地将LabVIEW与MATLAB/Simulink结合进行系统的设计与仿真。利用LabVIEW的可视化技术,可以使仿真具有更好的效果。

摘要：This paper develops a prototype to demonstrate a full-duplex wireless visible light communication (VLC) system based on Universal Serial Bus (USB) port. Combing with a USB 2.0 port on one board, it can achieve up to 2 Mbps bit rates error free, which is mainly limited to the USB bridge circuit, between two computers for data transmission, such as text, audio and video. Hyper Terminal and self-written software are used to allow setting the transmission data rate, control bits, check bits and achieve real-time transmission between any two mobile devices with a USB port. The work is based on the research of VLC local access network. This paper also shows the experimental results and the relationship between system transmission eye diagram and bit rate.

摘要：本文介绍利用TMS320VC5402中主机接口HPI实现与主机通信,不需要增加太多额外的硬件设备和软件开销,外部主机通过HPI口对DSP系统的RAM进行访问,不会影响DSP的其它处理过程。实现了一种TMS320VC5402DSP与AT89C51单片机通信的硬件连接方案和软件实现方法,给出了部分程序代码。实验结论证明这种方案可行、有效,对于一些复杂系统的设计具有很好的借鉴意义。

摘要：“UI”专业的兴起要归功于以计算机为主的高科技迅速发展,他是人们为解决与机器的交流问题而诞生的新概念,并已经形成一个新兴的社会分工。“UI”设计专业从业人员属于技能应用型人才,目前国内的“UI”设计市场还处于初级阶段,但中国“UI”设计市场一定会有一个飞跃的发展。