中国禽流感病毒毒株信息管理系统设计及实现

为满足国家禽流感参考实验室对中国禽流感毒株信息计算机化管理的需要,通过系统的需求分析,建立了毒株信息数据标准和数据结构模型,在此基础上设计出系统结构,开发出中国禽流感病毒毒株信息管理系统。系统的主要功能包括：信息录入、信息维护、信息查询及统计分析、报表系统以及系统安全等。该系统的开发和应用,实现了参考实验对信息计算机化管理的要求,为中国禽流感毒株信息的管理和利用提供了有效工具。     

Integrated Quality System Research and Development Based on Browser/Server Model

In this paper, the authors discuss the principium of browser/server model and expatiate on the characteristic of browser/server model. Elucidated the concept and connotation of integrated quality system, and emphatically researched the system structure and function model of the integrated quality system based on browser/server model.     

Construction and Application of GPS Location-based Services System Based on JAVA

A method of constructing GPS-based positioning services system by means of JAVA technology is introduced in this paper. The position data, which are sent from GPS satellites, are received by GPS receiving terminal and are analyzed by mobile computing client developed on J2ME in accordance with the differential GPS algorithm. The client submits special position querying information to position server in way of wireless GPRS network. After computing and data querying, the server developed by J2EE returns results to the mobile device. Then, the mobile computing client displays the position map or carries out further processing. All of these form a highly precise location-based services system.     

Design Quality Review System Based on Networks

Design quality review of product is an effective method to improve product quality. The inefficient traditional design review is not accord with modern yield requirement. The multiple system truss of design review is constructed based on the primary characteristics and the requirements of design review and the network technology. The mode of communication between client and server and the flow of design review system based on networks are expatiated. According to different phases of reveiw,the universal quality index system for evaluating the product design is established and the design review system based on networks is realized by NetMeeting.     

地市级土地利用规划信息系统的设计与实现

地市级土地利用规划信息系统是全国四级土地利用规划信息系统的重要组成部分,它联系着省级系统和县级系统,具有承上启下的作用。研究地市级土地利用规划信息系统,对提高土地利用规划工作的信息化水平,完善全国的土地利用规划信息系统体系,实现规划管理工作的一体化办公和规划数据的互联共享具有重要的现实意义。本文选用MAPGIS7.0、Visual Basic 6.0和 SQL Server 2000作为系统开发工具,采用集成二次开发方法,以客户机/服务器（C/S）作为系统的体系结构,设计开发了系统的数据库和系统的功能模块。本研究对推动地市级土地利用规划信息系统的建设有一定的作用。     

基于web的农产品安全生产组态软件

提出了以SVG作为监控图片格式,Ajax作为客户端与服务器通信机制构建基于Web的农产品安全生产图形组态软件的方法。详细介绍了系统的整体结构,系统的主要功能模块的设计及具体实现,并介绍了系统实现过程中的关键技术。农产品安全生产组态软件不仅可以实现农产品生产过程的实时监控,而且还为生产预警提供依据。     

Analysis on Communication Mode of Feeder Automation

The paper mainly analyzes and studies mode of bus communication based on optical fiber at one_point to multiple_point and mode of point_to_point communication based on wireless at one_point to multiple_point. The advantages and disadvantages of two communication modes are given. Considering the demands on FA data communication,the paper presents transmitting data based on network mode and connection mode,implementing application protocol based on object oriented mode and international standard. Considering the requirements of FTU unit for data communication, the paper proposes the network inner operating system in FTU unit, which is indispensable. Data are transmitted on client/server mode, defined and organized on object oriented mode and transmitted on logical address.     

基于XMPP的农业远程监测和诊断平台的研究

为解决农业生产远程监测和远程咨询诊断问题,采用XMPP及其扩展协议Jingle,研发农业远程监测和咨询诊断于一体的综合平台,实现农业生产环境因子远程监测、生产现场远程视频监视和远程双向视频咨询诊断功能。平台采用客户端和服务器结,农业生产环境因子远程监测依靠集中器把各指令和数据转换成XMPP格式,生产现场远程视频监视和远程双向视频咨询诊断通过XMPP解析模块把各指令和文本数据转换成XMPP格式,然后与服务器端进行通讯,音频和视频数据采用XMPP的扩展协议Jingle进行传输。平台在农产品安全生产中进行了试用,农业生产远程监测和专家咨询诊断在同一平台完成,保证了农作物生产的产量和品质。     

Dynamic Identification System and Application

Novel and secure dynamic identification system comprises electrical tokens, a secure identification server, a management workstation and application Programming Interface. Dynamic password is generated with synchronous and asynchronous identification algorithms. Since there is no correlation between passwords, they cannot be predicted, traced, intercepted or decoded. Thus the reliability of identification is enhanced. This paper first introduces principles of synchronous and asynchronous identification based on time and events, and then gives a through analysis of security in dynamic identification techniques. A brief introduction is given about identification issues in current stock industry. With event-based synchronous identification as an example, we give a detailed introduction of dynamic identification techniques with the application in stock exchange and integration of identification system and client system.     

基于51Ditu公用API接口的土壤标本地理分布信息系统

福建农科院农业生物资源研究所收集了大量的土壤标本应用于土壤微生物研究,为使土壤标本管理实物与信息紧密结合,直观显示土壤地理来源,建立了基于灵图公司公用地图API接口的地理分布展示系统。系统属性数据为土壤标本采集地信息和全国县级行政区划信息;空间数据由公用API实时提供。系统采用基于Ajax的B/S模式,将土壤标本采集地点、数量等信息叠加显示在客户端网页地图上,以行政区划方式浏览;数据编辑部分提供了对土壤标本的添加、删除和更新功能。     

MVC模式在粮油检验信息管理系统中的研究与应用

随着Internet的迅速发展和Web技术的广泛应用,出现了许多基于Web工作方式和MVC设计模式开发的大型应用系统。通过分析目前流行的MVC模式的工作原理和性能特点以及研究基于MVC和浏览器/服务器（B/S）多层体系结构,在J2EE开发环境下采用JSP、Servlet、EJB等核心技术对粮油检验信息管理系统进行了框架设计。     

基于移动溯源与图像分析的茶叶品级鉴定方法研究

为解决茶叶在质量追溯时防伪和品质鉴定问题, 以六安瓜片为研究对象, 提出一种结合移动计算和图像分析的茶叶质量追溯方法。该方法的实现以 Android操作系统为平台, 通过扫描茶叶质量追溯二维码查询溯源信息。在此基础上, 利用智能终端拍照获取完整的单片茶叶正面照片并上传至后台服务器。后台编写的 MATLAB图像处理程序对采集的图像进行预处理和特征参数提取, 将提取的颜色和形状共 7项特征参数作为参数集合, 运用 SVM分类器对茶叶进行分类, 最终将结果反馈到溯源客户端。测试结果证明, 该方法能快速帮助消费者对茶叶品级进行初步鉴定。     

Development and Application of a Ultrasound Image Management System

Aimed to enhance data processing ability and to server perfect information management of B-scan this system is emerged.Integration of with a standard PC and a B-scan with a video capture card,this system researched and developed a B-scan diagnostic and management system including image capture,image processing and data management function.The system implement image processing and analysis functions consisting of image enhancement,geometrical parameters calculation and so on.Otherwise it provides convenient diagnostic report creation function,powerful archive management and printing function,namely it realizes a efficient and cute PACS system.By incomparable advantage of standard PC,this system improves and upgrades the performance of traditional B-scan, improves the doctors' work efficiency greatly.     

Analysis of Exhaustive Service Polling System with Bulk Arrival

The exhaustive service polling system with bulk arrival,and the distribution and mean of the queue length and the cycle time,service time and interval time of the server and the distributions of sojourn times are studied.     

Multi-server Technology for Internet-based Collaborative Design

A distributed Client/Multi-Server system is developed, in which the multi-server system controlled the collaborative clients by the mechanism of collision arbitration. This is made to avoid collaborative clients to become completely dependent on the single server and to improve the stabilization and reliability of the server system. A mathematic model of multi-server system based on queuing theory is presented. The solution of mathematic model is analyzed, which includes the average utilization frequency of servers, the length of queuing and waiting time. The theory system, which is intuitionistie and convenient, is redounded to reflecting the dynamic data change of the system, reasonably organizing the system and optimizing the design methodology of the multi-server system.     

Orientation of Aim Client in Real Estate Development Based on EXCEL

In order to subdivide the market during the process of project planning and orient the group of client, then determine the sale price; on the condition that the traditional orientation procedure cant grasp the payment capability of the aim client, the anthors can adapt the powerful finance analysis ability of EXEL to design the procedure of determining the purchasing power and payments ability of the aim client, and shape a set of orientation system based on quantitative analysis method. The result is, the character of the aim client can be grasp accurately depend on this orientation system, and providing a scientific gist for the accurate orientation of price and lowing the risk of investment etc.     

Research on QoS Strategy of Web Server Cluster Application Based on Request Classification and Request Admission Control

The increase of requests often results in performance degradation of the web server cluster. The quality of service (QoS) expected by users can't be guaranteed. This is the problem that service-level web server cluster must cope with. In this paper, two strategies are proposed including classification of the user requests and request admission control, the different quality of service can be reached and the QoS of service-level users is guaranteed. The simulation experiments proved, the load balance of the system is improved and average response time of the system is decreased.     

Effect of the Parameters of the Collimating Pipe on the Efficiency of Cutting Rock of Collimated Abrasive Water Jets

This paper applies economy principle to analyzing the principal agent model between client and property management company, the model is applied to putting forward three kinds of solutions contributing to solving the problems in present expenses collection of property management company.     

基于物联网的玉米病害环境监测系统研究与实现

为研究和实现基于物联网的玉米病害环境监测系统,笔者设计了包括感知层、传输层、云服务层和应用层的4层架构。在感知层,利用传感器技术实时采集玉米病害环境的温湿度、降雨量、风向风速、光照强度和土壤温湿度等数据;在传输层中使用4G移动通信网络实现数据的远距离传输;云服务层中,基于四川农畜育种攻关云服务平台,应用数据库技术、云服务技术实现数据的存储和管理;最后,在应用层采用B/S模式实现数据展示服务。结果表明,该系统能够准确采集、稳定传输和安全存储数据,降低了人工成本。因此,它能够为玉米病害研究课题组提供有效的信息化服务,具有一定实用价值。     

农产品微环境监测系统设计

设计了一款将农产品微环境监测领域所用到的温度、湿度、氧气及二氧化碳气体浓度传感器集成到一起的多功能一体化传感器系统,并且可以通过Si4463无线模块将测得的数据发送给远端服务器,为后续的环境参数预警、保鲜期预测等提供原始的数据信息,利用液晶显示屏实时显示测量结果。该多功能一体化传感器系统解决了传统传感器测量类型单一,且测量数据不能远程传输的问题。经实际测试,该系统运行稳定,为农产品的仓储、物流等环节环境参数的监测提供了极大的便利。