Analysis of Management Performance between Owner and Supervisor under Asymmetric Information

The situation of asymmetric information makes a certain benefit conflict between owner and supervisor in the case of project supervision, and the owner undertakes the loss risk caused by information asymmetry. This paper has analyzed the management performance of the owner to the supervisor during the project supervision entrusting by a model.     

风电增速齿轮箱动力学性能优化方法

建立增速齿轮箱动力学分析有限元模型,利用Lanczos法求得齿轮系统的振动模态;以齿轮副时变啮合刚度激励、齿面综合误差激励和轮齿啮合冲击激励为内部作用激励,采用直接积分法求得箱体表面节点的动态响应。选取箱体上12个主要结构参数作为动力学性能优化的设计变量,齿轮箱体积为状态变量,以齿轮箱表面振动加速度的均方根值最小为动力学性能优化的目标函数,利用零阶与一阶优化算法求得最优设计变量。结果表明：优化前后箱体均不产生共振,且满足静力学条件;优化后目标函数减小37.5%,箱体各计算点的振动响应均有较大幅度的减小,最大减小量为54%。     

OPTIMIZATION DESIGN OF ADVANCED CORRECTION OF THE CONTROL SYSTEM BY A PASSIVE NETWORK

Optimization design of correction of the control systemby a passive network is studied in this paper.The design method guan-rantees collocation of a closed loop pole in a desired position,but alsominimizes the gain of the system amplifier,thus making the technicalrealization of the system easier.The design method is proved in thepaper.     

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。     

INVESTIGATION OF DEVELOPMENT SYSTEM OF 1802 MICROCOMPUTER

Based on general concepts of microcomputer developmentsystem,the design concept and main characteristics of 1802 microcomputerdevelopment system are introduced in this paper.This system is ratio-nally designed,powerful in function and very useful for further develo-pment and application of 1802 host computer in communication.     

粮食定等智能检测系统研究设计

论述了粮食定等智能检测系统的设计思路;重点介绍了小麦、玉米质量智能检测系统的通讯协议、软硬件的设计和功能特点,该系统改变了传统人工检测、手工录入数据的模式,实现了收购定等质量指标及储藏品质判定仪器数据的自动采集、传输和统计,并与智能化粮库管理平台的数据库实现了数据实时交互和共享,为粮油收购质量源头控制提供了技术支撑;展望了粮食仓储企业质量检验信息化的发展方向。     

An analysis hierarchy model application in computer aided alignment

To obtain the most important influence factors in road route selection quickly and effectively, we put forward a method that we call an analytic hierarchy process. In this method, we first use a matrix to show the mutual relationships of factors. We then analyze and calculate the matrix. Finally, we obtain the relative importance of all factors in the overall system. The result derived using this method is more reasonable and more direct viewing to reflect influence coefficient. And based on the firsthand information of designs and the social background, the method can give qualitative indicators before program design, which prevented blindness of designing process and the designer can get more suitable road lines.     

嵌入式Linux系统在粮库中的应用

近年来，随着嵌入式计算机技术的飞速发展，嵌入式系统得到了越来越广泛的应用，尤其是在工控、仿真、数据采集等领域。嵌入式系统需要嵌入式操作系统作支持，而由于Linux操作系统结构清晰，源代码开放性等方面的优势，在嵌入式系统中也得到了广泛的应用。本文以中央储备粮赤壁直属库管理监控系统的设计为背景，论述了基于Linux的嵌入式工作站取代传统的工控机为主的现地控制单元在粮库管理监控系统中的应用过程以及基于Linux的嵌入式工作站的设计。     

大数据环境下林业资源信息云服务体系架构

为了应对林业资源信息管理在大数据时代面临的新机遇和挑战,解决智慧林业中林业资源信息服务体系架构设计与应用问题,基于云计算理论与技术,深入剖析了林业资源信息云服务的内涵及其基本特征,参照IEEE 1471 2000提出了林业资源信息云服务架构设计元模型,进而借鉴架构模式中的层架构模式设计思想,初步设计了林业资源信息云服务体系架构的总体结构和分布式协同部署模式,在国家林业局和辽宁省开展的林业资源监管服务系统构建过程中对体系架构的理论设计结果进行了实践应用和反馈修正。结果表明,林业资源信息云服务体系架构能够满足大数据环境下林业资源监管业务需求,具有良好的实用性和推广性。     

A NEW METHOD FOR DESIGN OF PSS PARAMETERS

The eigenvalue sensitivity methods is very useful not only in analysis of electric power system stability but also in design of the controllers. In this paper a new optimal method is proposed to design the parameters of PSS. Using this method the PSS is designed for a single machine-infinite bus system, and the results of digital simulation show that this method is very effective and useful.     

草地土壤管理信息系统的设计与实现

本文概述了草地土壤管理信息系统设计的意义、主要功能、特征、空间数据库和属性数据库的建立方法以及系统功能模块的设计与实现的方法,系统的建立不仅可为参与牧草产业体系管理的各个部门提供决策的参考信息,也可为用户进行有针对性的品种布局、科学施肥等提供指导性作用。     

Universal design of ISO9000 quality management information system

Quality Management Information System(QMIS) is critical component in enterprise quality system. The enterprise quality management of modern manufacture perform mostly as a dynamic system during continuous change. OMT(Object-oriented Modeling Technique) is adopted in this paper, QMIS is analyzed on the aspects of system analysis, system architecture, object model. The framework architecture of flexible ISO9000-QMIS and the universal feature is presented. With the design of flexibility and expandability, structure and function can be redesigned based on managing instance of enterprises, and satisfy the dynamic requirement of informationlization.     

Realization of Multi-task Scheduling in Linux Based IPC Measurement and Control System

Industrial Personal Computer(IPC) system generally works in long duration,and so a stable software is essential for an IPC system.Linux has a good deal advantages,such as,stability in use,open source code and free of charge, therefore an IPC measurement and control system has developed based on Linux. Multi-task scheduling is the critical part in system software.A simple method to realize multi-task scheduling in IPC measurement and control system based on Linux alarm clock mechanism is presented. Linux alarm clock mechanism is implemented by the cooperation of software timers and system call that is used to install and handle alarm clock.First, Linux process timers,soft interrupt signals, relevant system call are introduced,as well as applications of Linux alarm clock mechanism in multi-task scheduling. And then an example of the application in the IPC measurement and control system is given. The system has passed longtime run test,accomplished expected functions and shown well stability, so that practicability of the scheduling method has been authenticated.     

山东省农情遥感监测平台构建研究

[目的]准确及时的农情信息是各级政府制定农业政策、管理指导农业生产的重要依据。遥感技术在山东省农业资源调查、农情监测、灾害预警等领域发挥着越来越重要的作用，亟需建立一个服务于农业生产管理需求的省级农情遥感监测业务化运行平台。[方法]利用地理信息系统（GIS）、遥感技术(RS)和网络技术，基于MapGIS平台，提出了山东省农情遥感监测平台建设的重要意义、设计原则、总体架构、建设内容以及系统的总体部署。[结果]平台的建立，将实现山东省主要粮食作物面积、长势、产量、灾害等农情信息的动态监测与及时发布，同时为公众提供专题遥感监测产品服务。[结论]推动农情遥感监测的广泛应用和产业化发展，为保障粮食安全、强化农业生产科学管理和建设现代农业提供强大的支撑。     

THE OPTIMAL DESIGN AND ENGINEERING APPLICATION OF DISTRIBUTION

This paper introduces the metod of optimal design of municipal water distribution,The main points are the theory,mathematical model,program frame figure and example in practice of the optimal method of hydraulics.The program is applicable to the design and calculation of the pipe network in a city. It gives a simple and convenient calculation method for multiple-scheme design and scheme cmparison of water supply system.     

粮食产后服务中心信息化体系构建

粮食产后服务中心作为粮食产后服务体系的核心,急农所急,为农分忧,主动便农惠农,积极承担社会服务职能,积极推动了农村经济发展。但是目前,粮食产后服务中心尚没有建立完善的信息化体系,只有个别区域的粮食产后服务中心建立了"粮食银行"信息管理系统,用于管理农民代储、代加工、代售的粮食。基于这种情况,本文在分析粮食产后服务中心服务职能的基础之上,构建了完整的粮食产后服务中心信息化体系,为粮食产后服务中心的发展提供技术支撑。     

新12型可吸式粮堆局部通风系统通风降温试验

采用新12型可吸式粮堆局部通风系统进行粮堆局部通风，有效面积达100m^2，配置的轴流风机功率2．2kW，通风降温效果非常明显。其设计合理，使用方便，降温效果好，节约能耗，用途广泛。     

基于无线传感器网络的智能粮仓监控系统

分析了目前粮仓监控的现状,设计了一个基于无线传感器网络监控系统体系结构.设计了系统的GSM通信模块,给出了系统数据传输数据的设计,及系统端口初始化的核心代码,设计了系统智能监控流程,从而解决了系统开发运行的难题.最后通过系统的试运行,验证了系统的设计与开发思路的正确性.     

Application of TMS320C6201 to Intelligent Active Security System

With the development of car industry and carrying trade, serious traffic accident threatens the safety of people and property. It proves the essentialty and instancy of developing the intelligent active security system. The system based on the DSP, can overcome the flaw of the system based on the radar,microwave and ultrasonic. With the TMS320C6201 DSP and the algorithm of computer vision and mode identity, it can find the rode, roadblock and the distance of roadblock . With small volume,portable,easy install,adaptability with atrocious environment and low price, the system can meet the desire of practicability. A lot of experiment prove that the design of the system is advanced and reasonable, and can be adapted to the intelligent aided drive of all kinds of car. The system has the good value of popularize and employ.     

AN INEXACT REASONING INFORMATION MANAGEMENT SYSTEM

The author introduces some basic ideas and methods of artificial intelligence into an information management system,and therefore proposes a design for the information management system which has the ability of inexact reasoning based on the certainty knowledge. According to the design, the system can also be made with the flexibility of change and expansion, and good adaptability for application. This paper describles the design and its programing skill in detail.