Effective Context Inconsistency Elimination Algorithm Based on Feedback and Reliability Distribution for loV

In recent years, context aware technology has been widely used in many fields, such as internet of vehicles （IoV）. Consistent context information plays a vital role in adapting a system to rapidly changing situations. However, sensor＇s precision variance, equipment heterogeneity, network delay and the difference of statistical algorithms can lead to inconsistency context and inappropriate services. In this paper, we present an effective algorithm of context inconsistent elimination which is based on feedback and adjusted basic reliability distribution. Through feedback, each sensor＇s perception precision can be obtained, and with the adjusted basic reliability distribution scheme, we can make full use of all context information by adjusting the influence of every context on whole judgment based on sensor＇s perception precision and threshold of sensor＇s perception precision, and then eliminate context inconsistency. In order to evaluate the performance of the proposed context inconsistency elimination algorithm, context aware rate is defined. The simulation results show that the proposed context inconsistency elimination algorithm can obtain the best context aware rate in most cases for the varied error rates of sensors.     

银行卡支付领域中的安全三层次问题及其与便捷性的对比研究

伴随互联网技术的发展,银行卡支付领域也发生了极大的变化,越来越方便和快捷的支付方式给人们带来了便利,但同时也引发了不少安全问题。本文从银行卡支付角度出发,对比分析了安全和便捷的特点,并提出了解决方案。     

基于S3C6410的智能家居系统设计

本文利用S3C6410主控板、STM32、wifi模块、GSM模块及多种移动终端设计一个智能家居系统,使分立的设备通过无线和有线网络组成一个相互联系、协同操作的整体,实现家居环境监视、防盗自动报警、灯具自动控制、燃气泄漏远程报警等功能,使用效果良好。     

DRM1,DRM2参与拟南芥愈伤组织的形成

通过体视显微镜、半薄切片、扫描电子显微镜观察拟南芥DNA从头甲基化酶DRM1,DRM2的双突变体drm1/drm2在愈伤诱导培养基上所诱导的愈伤组织,结果发现:与野生型相比,其种子和根、叶、叶柄等外植体,均具有在同等条件下愈伤组织增多,分裂旺盛的表型。编码拟南芥DNA从头甲基化酶DRM1,DRM2的基因DRM1,DRM2的表达水平也与生长素、细胞分裂素等外源激素浓度相关,由此推测外源激素浓度影响DRM1,DRM2的表达。暗示了DRM1,DRM2可能参与了拟南芥愈伤组织形成过程。     

HIAWSC： An Immune Algorithm Based Heuristic Web Service Composition Framework

The introduction of of web services has led to web service composition being a focus of many researchers. Composing web services using workflows is seen as the most realistic method from an industrial viewpoint. Amongst other method, the use of natural computing methods has been proposed previously to automate web service composition. The need for a fast response when computing the most suitable sequence of services is addressed in this paper. In particular, we propose a novel heuristic immune algorithm with an efficient encoding and mutation method. The algorithm involves two steps： an immune selection operation, which is maintaining antibody population diversity and the clonal selection. The use of a vaccine during the evolution provides heuristic information that accelerates the convergence. Our experimental results illustrate that the proposed heuristic immune algorithm is very effective in improving the convergence speed. We also provide a schema analysis for this method.     

Risk and Intellectual Property in Technical Standard Competition： A Game Theory Perspective

Technical standard is typically characterized by network effect.The key point for a technical standard is the consumers＇ choice,which is based on consumers＇ maximum benefits.When a technical standard becomes a national standard,its interests have been integrated into the national interests.National interests are divided into economic profits and security factors.From the perspective of consumers＇ choice,this paper deals with the main factors which affect the result of technical standard competition- the risk and profits of intellectual property based on the assumption of bounded rationality and dynamic game theory.     

手机图像处理技术专利现状

随着彩信手机、拍照手机、智能手机等手机的发展,手机已不再简单地只是打电话发短信的一个工具,而渐渐成为集个性化、娱乐化为一体的数据中心.如何满足用户在获取图像后对图像进行个性化处理的需求,就变得十分重要.因此,手机图像处理已然成为手机技术发展的研究热点.针对手机图像处理领域的专利文献,给出了该领域主要申请人的申请量分布图,并对该领域的重要专利分布进行分析.     

一种双陷波超宽带单极子天线的设计

提出了一种新型双陷波特性的超宽带单极子天线。通过在介质基板上添加锥形辐射贴片,天线可以覆盖超宽带通信频段。在辐射贴片上引入上、下两个锥形缝隙结构,可以实现3.5 GHz、5.5 GHz的双陷波特性。天线实测模型电压驻波比＜2的阻抗带宽是2.56~10.61 GHz,其中3.18~3.76 GHz和4.4~5.75 GHz具有陷波特性。测试表明,天线在工作频带内具有全向辐射特性。     

基于节点安全预测的火场撤离路径规划

火场烟雾弥漫、能见度低,消防队员很难准确定位并找寻到合适的撤离路径.文中使用人机协作在火场中建立动态三角网基础上,以网络节点为参考点为消防员规划撤离路线.该方案使用基于相似函数的证据理论对火场中各节点采集的烟雾浓度、温度、氧气浓度进行数据融合,并确定节点位置的安全等级;引入预测机制,可以预测短时间内前进路径中节点位置的安全等级的变化.根据安全等级变化,剔除网络中危险节点,使用基于路程换算的A算法计算实时最短的安全路径.通过数据分析表明,该方案能更好的适应火场环境多变的特点.     

利用改善的体连接技术制备SOI LDMOSFET

对功率器件中常用的体连接技术进行了改进,利用一次硼离子注入技术形成体连接.采用与常规1μm SOI(硅-绝缘体)CMOS工艺兼容的工艺流程,在SIMOX SOI片上制备了LDMOS结构的功率器件.器件的输出特性曲线在饱和区平滑,未呈现翘曲现象,说明形成的体连接有效地抑制了部分耗尽器件的浮体效应.当漂移区长度为2μm时,开态击穿电压达到10V,最大跨导17.5mS/mm.当漏偏压为5V时,SOI器件的泄漏电流数量级为1nA,而相应体硅结构器件的泄漏电流为1000nA.电学性能表明,这种改善的体连接技术能制备出高性能的SOI功率器件.