面向RFID的框架化数据融合中间件研究与设计

介绍了基于数据融合的结构可扩展软件开发框架（xDFF）及其规范体系,在此框架下,主要研究并设计了包括RFID数据资源集成与融合应用平台的建模方法、工具及实现方法,旨在设计一种高效且可扩展的,支持海量RFID数据采集、过滤、聚合、事件管理以及存储、维护、查询和安全管理等功能的环境与工具,实现普遍适配,提供二次开发接口,与企业数据集成并进行统一管理的模块化框架化RFID数据融合中间件产品.     

基于需求驱动的数字化校园数据架构研究与设计

近年来,在数字化校园建设中,以数据服务为核心,为不同角色提供人性化信息服务,以及为学校发展提供决策支持的需求应运而生.而单一的统一数据库在应用系统和业务规模扩大时其应用查询效率较低,为此设计出一种新的数字化校园数据架构,将数据交换库与共享数据库分离,使数据存放更为有效,从而提高查询效率.从理论上和技术上对新的数据架构进行了可行性分析.新的数据架构能够较好地满足数字化校园建设中的新需求.     

城市管理科学执法分析决策系统的开发与实现

数字城管建设过程中积累了大量的执法信息,分析和挖掘这些信息具有重要的意义。介绍了一个城市管理科学执法分析决策系统的具体设计和实现,该系统基于Java EE平台,采用MVC设计模式,使用Struts 2和Hibernate框架,综合运用了统计分析方法。该系统能为城市管理的科学执法提供决策支持。     

K-means算法在大学生消费状况分析中的应用

以运城学院在校大学生为例,对其消费情况进行了抽样调查,并利用K-means算法对调查结果进行了聚类和分析.实验结果表明,每一类学生中影响其消费的因素是有差别的,该分析结果可作为指导各类学生消费的依据.     

TCP和SCTP路由协议的对比研究

为了更好地了解流控制协议—SCTP的相关性能,利用NS-2网络仿真软件,从单路径和多路径两个方面对TCP和SCTP协议进行了比较。实验结果表明,在应对链路恶化的情况下,SCTP协议的吞吐量更大,也具有更高的稳定性,更能满足现在网络高性能传输的要求。     

A novel linearly-weighted gradient smoothing method (LWGSM) in the simulation of fluid dynamics problem

This paper describes a novel linearly-weighted gradient smoothing method (LWGSM). The proposed method is based on irregular cells and thus can be used for problems with arbitrarily complex geometrical boundaries. Based on the analysis about the compactness and the positivity of coefficients of influence of their stencils for approximating a derivative, one favorable scheme (VIII) is selected among total eight proposed discretization schemes. This scheme VIII is successively verified and carefully examined in solving Poisson equations, subjected to changes in the number of nodes, the shapes of cells and the irregularity of triangular cells, respectively. Strong form of incompressible Navier–Stokes equations enhanced with artificial compressibility terms are tackled, in which the spatial derivatives are approximated by consistent and successive use of gradient smoothing operation over smoothing domains at various locations. All the test cases using LWGSM solver exhibits its robust, stable and accurate behaviors. The attained incompressible LWGSM solutions show good agreements with experimental and literature data. Therefore, the proposed LWGSM can be reliably used for accurate solutions to versatile fluid flow problems.     

Development of an image-based model for capillary vasculature of retina

The paper presents a method of development of a detailed network model to represent retinal capillary vasculature. The capillary model is a circular mesh consisting of concentric rings with an increasing diameter. Each of the rings has uniformly distributed bifurcation nodes to represent capillary vessels. The model is customized using the data that has been measured from confocal microscopic images of a mouse retina. The capillary model developed can be connected to networks of larger vessels of the vasculature such as arterial and venous networks to form a complete model of the retinal network. A method to automate such interface connections between capillary and other vascular networks using connecting vessels (i.e., pre-capillary and post-capillary) is also presented in the paper. Such a detailed image-based capillary model together with the arterial and venular networks can be used for various circulation simulations to obtain accurate information on hemodynamic quantities such as the spatial distribution of pressure and flow in the vasculature for both physiological and pathological conditions. The method presented for the development of the capillary model can also be adopted for vasculatures of other organs.     

基于3G无线网络的工业监控系统设计

设计了一种基于3G无线网络工业监控系统,把自动控制技术和先进的移动通信技术相结合,使用便携手机作为监控终端,利用3G无线网络实时清晰地传递工业现场的动态信息,并将监控人员控制命令下达给现场设备,管理设备运行,针对控制功能提供权限认证,当遇到异常情况时,及时发出报警信息。     

ADS5287及其在MIMO接收机中的应用

介绍了TI公司模数转换器ADS5287的性能特点.用ADS5287作为模数转换器设计了MIMO中频接收机电路,完成了系统的PCB设计,并使用Hyperlynx软件中的Boradsim工具对设计中重要的高速信号线做了信号完整分析.     

一种使用视觉反馈与行为记忆的蚁群优化算法

在分析现有改进算法的基础上,结合视知觉及认知心理学的相关理论,提出一种具备视觉反馈与行为记忆学习能力的新型蚁群算法:首先,建立视觉模型使得蚂蚁能够通过人工视觉感知周围目标城市的分布,用视知觉修正信息素噪声,提高蚂蚁探索质量;其次,建立行为记忆学习模型,使蚂蚁能够从已经走过的局部最优路径中提取经验来指导周游活动,加快算法收敛速度并强化寻优能力.经过与传统改进策略比较发现,新算法在求解质量与求解时间上均有明显改进.