CVD淀积SiC薄膜SiH4,CH4的分解反应的计算机模拟研究

采用化学气相淀积淀积ＳｉＣ薄膜中ＳｉＨ４、ＣＨ４的分解产物种属进行数学建模,并结合相关热力学数据进行计算机模拟,得出ＳｉＨ４分解产物中以ＳｉＨ２为最多,ＣＨ４以ＣＨ２为最多,表明它们在淀积薄膜中是主要因素。     

Research and Implementation of Task Management Model in Product Development Process Management

The implementation of product development process management (PDPM) is an effective means of developing products with higher quality in shorter lead time. It is argued in this paper that product, data, person and activity are basic factors in PDPM With detailed analysis of these basic factors and their relations in product developmed process, all product development activities are considered as tasks and the management of product development process is regarded as the management of task execution A task decomposition based product development model is proposed with methods of constructing task relation matrix from layer model and constraint model resulted from task decomposition. An algorithm for constructing directed task graph is given and is used in the management of tasks. Finally, the usage and limitation of the proposed PDPM model is given with further work proposed.     

轮-腿-履带复合移动机器人的研究

中国科学院沈阳自动化研究所自行研制的灵豹复合移动机器人,采用轮-腿-履带复合移动机构,构建了嵌入式控制系统,设计了模糊控制器控制机器人行走,实现了机械臂的自主联动控制.机器人运动控制更加简便,系统具备良好的适应性和运动稳定性.     

车门LIN网络通信程序设计

介绍了轿车车门LIN网络基本结构,LIN总线的主/从节点采用MC68HC908GZ60/MC68HC908QL4,阐明了基于ESCI/SLIC模块的LIN主/从节点软件设计流程,编写了主、从节点的LIN通信程序.实践证明,该程序运行正常、可靠,为车门控制系统顺利实现提供可靠的保障.     

基于Zigbee技术的无线传感器网络协议的设计

本文提出了使用zigbee技术构建簇树形拓扑结构的无线传感器网络.首先,概述了无线传感器网络的特点;其次,重点阐述了此类拓扑结构的无线传感器网络协议设计思想;最后,在实际的硬件环境下验证所设计的协议.     

片上eDRAM性能评价函数簇研究

本论文针对基于eDRAM的SOC中存储系统的性能评估问题、设计问题和可复用的eDRAM的集成技术问题进行研究,提出了一种定量的存储系统性能评估的建模方法.建立基于eDRAM存储系统评价函数簇模型,包括L(访问延迟)函数,P(功耗)函数,A(面积)函数和Y(良率)函数.利用此模型在已知系统性能要求的情况下,可以求出满足系统性能要求的最佳的参数值,或是多种满足条件的备选方案,为在SOC中使用eDRAM时优化存储器配置和存储系统设计提供理论依据.     

Joint multiple parameters estimation for coherent chirp signals using vector sensor array

In this paper, an algorithm is proposed to estimate starting frequency （SF）, chirp rate （CR）, 2-D direction-of-arrivals （DOA） and polarization of coherent chirp signals with vector sensor arrays. The fractional Fourier transformation （FRFT） is used to estimate SF and CR of chirp signals in this method. And a new correlation matrix is reconstructed to suppress the noise. The property of the vector sensor array is employed to solve the problem of insufficient rank from signal coherence. The L-shaped uniform array of expend aperture is used to improve the precision of es- timation, and the method of solving the ambiguity of angle under the condition of coherent signals is presented. The performance of this algorithm is compared with that of spatial smoothing method to verify the efficacy of this approach.     

车辆牌照的识别技术研究

车辆牌照识别系统是现代智能交通系统的重要组成部分。本文阐述了车辆识别系统的的关键技术,并且对车辆识别技术存在的问题和发展进行讨论。     

使用XML基于Web的数据挖掘及其应用

介绍了Web数据挖掘的含义,重点讨论了Web数据挖掘的类型以各种类型的Web数据挖掘的基本过程以及它们所使用的一些相关技术,最后指出网络信息挖掘的应用前景。     

动漫在医学中的应用

动漫可以逼真的呈现现实世界的事物,它已经被广泛地应用于诸多领域,特别是在医学领域。介绍了动漫技术在基础医学、临床医学等方面的应用,并展望了动漫技术在医学中的应用前景。