GIS中矢量图形的结构分析与VC++中的实现

简要讨论了GIS各类矢量图形元素间的空间拓朴结构及基位置关系 ,并用VC 6 . 0及MFC具体分析了圆弧与多边形区域的相交关系及实现。为利用VC开发专用图形软件提供了有用帮助。     

基于Vega的动态红外图像仿真

为提高红外图像的仿真效果,在Vega平台实现动态红外图像的仿真。首先分析了目标场景辐射特性模型、大气传输模型以及红外探测器模型,然后以F-16飞机为例详细地分析了Creator建立三维模型和在Vega平台完成动态红外图像仿真的过程,最后利用MFC和Vega API编程开发了友好的交互界面,用于不同仿真条件的切换和参数的调整。仿真实验结果表明该方法简单易行、有较高的逼真度,可为红外目标模拟器提供信号源。     

准分布式光纤Bragg光栅传感器在微生物燃料电池温度场测量中的应用

微生物燃料电池(MFC)在近些年得到了迅猛了发展,尤其是MFC具有产电且同时处理废水的效果,引起了世界各国科学家的高度关注。如何提高MFC产电效率的问题一直是MFC的研究重点,其中温度是影响微生物活性的一个重要因素,进而影响MFC的产电效率。为了能够更好地了解温度场与MFC的产电效率的关系,本文采用准分布式光纤Bragg光栅(FBG)阵列,对MFC阳极室内温度场分布进行实时测量。实验表明:该方法能够测量MFC运行阶段阳极室内温度场分布,反应前后温度差3-4℃,该方法为研究MFC内温度与产电效率的关系提供一种新的手段。     

基于MFC的多媒体播放器的实现

在VC+ +6.0平台上利用Windows Media Player控件实现了在程序中播放一段视频和音频的功能.测试结果证明该方法简单易行,极大缩短了程序的开发时间.     

微波弹的物理原理

微波弹是利用高能密度炸药作初级能源，通过磁通压缩发电机或磁流体动力学发电机将炸药爆炸释放出的化学能转变为高功率电脉冲，驱动微波发生器向外辐射高功率微波的一种新概念武器。文章简述了一般微波弹的组成结构、技术原理及其物理基础。     

In situ fibrillation of polyamide 6 in isotactic polypropylene occurring in the laminating‐multiplying die

The polyamide 6 (PA6)/isotactic polypropylene (iPP) in situ fibrillation composites are prepared by a novel extrusion die with an assembly of laminating‐multiplying elements (LMEs). The scanning electron micrographs illustrate that the dividing‐multiplying processes in LMEs elongate, break, and stabilize the dispersed PA6 phase in the iPP matrix along the flowing direction (FD). The morphology development of PA6 with different LME numbers greatly affects the rheological properties, crystalline behaviors, and mechanical properties. The dynamic rheological test performed at 195°C shows that the increased spatial restriction of the high‐aspect‐ratio PA6 particles increases the viscoelastic moduli, complex viscosity, and relaxation time. The crystalline analysis reveals that the heterogeneous nucleation becomes predominant and the transcrystalline morphology is observed in those samples produced by more LMEs. The tensile tests indicate that both, breaking strength and elongation, enhanced simultaneously because of the fibrillation of dispersed phase and the improvement in interfacial adhesion between the fibers and the matrix. Copyright © 2009 John Wiley & Sons, Ltd.     

基于MFC环境的CORBA应用程序开发研究

随着异构分布式系统应用领域的不断扩大,CORBA技术也得到越来越广泛的发展。ACE／TAO和MFC的结合为分布式系统程序的开发带来了新的思路,可以给用户提供友好的界面和面向对象的高效率编程方式。结合CORBA在某新型SDR电台上的终端应用软件的开发讨论了实现ACE／TAO和MFC结合的方法,并着重探讨了在多线程设计中出现的兼容性问题。     

Chemical surface modifications of microfibrillated cellulose

Microfibrillated cellulose (MFC) was prepared by disintegration of bleached softwood sulphite pulp through mechanical homogenization. The surface of the MFC was modified using different chemical treatments, using reactions both in aqueous- and organic solvents. The modified MFC was characterized with fourier transform infrared spectroscopy (FTIR), X-ray photoelectron spectroscopy (XPS) and transmission electron microscopy (TEM). Epoxy functionality was introduced onto the MFC surface by oxidation with cerium (IV) followed by grafting of glycidyl methacrylate. The length of the polymer chains could be varied by regulating the amount of glycidyl methacrylate added. Positive charge was introduced to the MFC surface through grafting of hexamethylene diisocyanate, followed by reaction with the amines. Succinic and maleic acid groups could be introduced directly onto the MFC surface as a monolayer by a reaction between the corresponding anhydrides and the surface hydroxyl groups of the MFC.     

基于MFC的化学用语象棋对弈系统开发与应用

在VC++6.0平台上,利用MFC框架开发的一款界面简洁、操作简单、实用性比较高的化学用语象棋游戏,集知识性、趣味性、挑战性、拓展性于一体。系统在双方对弈过程中能自动判断走子正确与否、能否吃子及输入的化学方程式正确与否,设有开始、悔棋、退出3个功能按钮及菜单与计时显示文本框。系统的应用缓解了学生学习化学用语的枯燥乏味,提高了学生对化学用语的学习效率,加强了学生间的合作交流,实现游戏与化学用语教学的有机融合。     

基于Directshow的H.264网络视频监控客户端实现

为了实现视频监控客户端对H.264实时播放,采用Directshow与MFC相结合的方法,用Directshow作为视频播放的驱动,从网络接收数据,完成缓存,解码显示及封装成MFC可调用的API,MFC用来设计户界面,对播放过程进行相应的控制,达到了播放从网络接收到的H.264视频的目的.经过PC机上验证,可以流畅地从网络上接收播放H.264视频流,并且丢包率很小。在此用Directshow来实时流畅的播放从网络上接收到的H.264视频流。