Real Estate Administration by Internet

The government plays an important role in modern economic life. The administration by Internet is ranked first among the IT highway's five application areas. The author of this paper introduced the status of China's real estate administration by Internet, analyzed the problems existed and constructed a framework of real estate administration by Internet, which will facilitate China's real estate administration and modernization.     

Does access to internet promote innovation? A look at the U.S. broadband industry

Access to the Internet is an essential determinant of innovation, which has received little attention in the literature. This paper emphasizes the role of Internet accessibility in lowering information costs and therefore boosting regional innovation activity. We construct a simple theoretical model to illustrate the positive impact of decreased discovery costs, proxied by the accessibility of the Internet, on innovation. To test this hypothesis, we exploit a county‐level data set in the U.S. and run three types of regression with and without instruments: OLS, negative binomial, and Poisson. Within each method, we employ four levels of download speeds. We find a positive relationship between the access to the Internet and the number of patents filed in that specific county. This effect is particularly strong in the case of access to download speeds of 10 Mbps. Our analysis suggests that access to the Internet lowers information disseminating costs and therefore encourages more patents filed in the county. The results also indicate that access to the Internet matters more than faster Internet speed for innovation. Policy implications for these results suggest that if there were a minimum Internet access initiative, there could potentially be a significant increase in innovation by the U.S.     

XMPP应用于物联网通讯协议的研究

为解决物联网系统之间的信息交换、互联共享问题,探索一种以XMPP协议为基础的物联网通讯协议。本协议定义了物联网端、网关、服务器3个角色,服务器承担各物联网的信息记录、连接管理和信息路由等功能,网关承担不同物联网系统之间的互联互通,各物联网之间相互通信的指令和数据采用XML数据流,采用类似电子邮件地址结构进行寻址。该标准技术协议在农情监测系统中进行了试用,能同时采集不同物联网系统的数据,相互之间还能进行数据交换,可促进物联网系统的整合和综合应用。     

Dynamic Data Exchange for Collaborative Design Based on Internet

The dynamic data exchange is the key to the realization of the collaborative design based on Internet. The features of data for collaborative design based on Internet are analyzed. The data transformation, the data transmission and the data transaction of collaborative design based on Internet are researched. The system configuration and organization mode of dynamic data exchange for collaborative design Internet-based are developed, in which, STEP serves as the product data exchange standard, and ORACLE is the kernel database of the system, so that each of the CAD systems can synchronously access the ORACLE database, share and exchange the design information. The STEP-ORACLE serves as the organizing mode of dynamic data exchange for the collaborative design based on Internet, which realizes the real-time exchange and consistency of the dynamic data between the different platforms and CAD systems.     

基于物联网的水产品冷链供应链集成管理体系——框架及运作机制

当前我国水产品冷链的物流与供应链管理短板凸显,造成我国水产品冷链断链频发,腐损浪费严重且流通成本高的流通难题。将物联网技术集成运用于水产品冷链建设中,有助于破解我国水产品流通难题,补齐物流与供应链管理短板。本文从分析水产品冷链三大应用主体--政府监管部门、冷链节点企业以及消费者的功能需求着手,构建了集成冷链上下游企业多个信息平台和物联网应用系统的水产品冷链物联网集成体系框架,分析了该体系的运行机制,同时设计出了物联网技术全方位应用于水产品冷链各环节的实施方案。     

A Structure of Intelligent Information Retrieval Agent

When users try to get Information over the Internet, Information overload has become a serious problem.So we propose to use intelligent information retrieval IIR agents as a solution to this problem.Based on the analysis of the features of retrieval system, including intelligent search, navigation guide, auto-notification, personal information management, dynamic personalized Web pages, and tools for page reading-aide, we discuss the responsibility of each component of intelligent information retrieval agent and how to organize these components to perform various functions to settle above problem, referring to the modularization structure of agent. Intelligent agent is doable and efficacious to increase the efficiency of information retrieval and to lighten network jam by preliminary practice.     

不同施肥制度对褐土有机氮及其组分的影响

为探讨施肥对土壤有机氮及其组分含量的影响,通过8年田间定位试验,研究了长期不同施肥制度下褐土有机氮及其组分的变化规律。结果表明,与试前比较,不施肥主要消耗氨基酸氮和铵态氮,土壤酸解性总氮及氨基酸态氮、铵态氮、氨基糖态氮含量均显著减少,进而造成全氮含量下降。单施常量NPK化肥处理土壤全氮、酸解性总氮和氨基酸态氮出现下降趋势,氨基糖态氮含量显著降低,铵态氮含量则呈增加态势;增量NPK化肥处理主要通过提高铵态氮含量使酸解性总氮和土壤全氮略有盈余;有机肥(物)料配施常量NPK化肥各处理则表现为酸不溶性氮含量降低,并通过有效增加氨基酸态氮、铵态氮和氨基糖态氮含量进而使土壤酸解性总氮及全氮含量显著提高,增强土壤氮素供应水平。有机氮积累过程中,化肥氮主要进入土壤铵态氮和氨基酸态氮库,而有机肥(物)料氮则主要进入土壤氨基酸态氮库。     

Understanding the Non‐Metropolitan—Metropolitan Digital Divide

Abstract A consistent gap exists between home Internet use in metropolitan areas and in non‐metropolitan areas in the U.S. This digital divide may stem from technology differences in home Internet connectivity. Alternatively, differences in education, income, and other household attributes may explain differences in metropolitan and non‐metropolitan area home Internet access. Effective programs to reduce the metropolitan–non‐metropolitan digital divide must be based on an understanding of the relative roles that technology and household characteristics play in determining differential Internet usage. The household Internet adoption decision is modeled using a logit estimation approach with data from the 2001 U.S. Current Population Survey Internet and Computer Use Supplement. A decomposition of separate metropolitan and non‐metropolitan area estimates shows that differences in household attributes, particularly education and income, account for 63 percent of the current metropolitan–non‐metropolitan digital divide. The result raises significant doubts that policies which focus solely on infrastructure and technology access will mitigate the current metropolitan–non‐metropolitan digital divide.     

Urban–Rural Differences in Internet Usage,e‐Commerce,and e‐Banking: Evidence from Italy

ABSTRACT By reducing the cost of performing isolated economic activities in remote areas, information technology might serve as a substitute for urban agglomeration. The paper assesses this hypothesis using data on Italian households' usage of the Internet, e‐commerce, and e‐banking. The results do not support the argument that the Internet reduces the role of distance. Internet usage is much more frequent among urban consumers than among their non‐urban counterparts. The use of e‐commerce is basically unaffected by the size of the city where the household lives. Geographically remote consumers are discouraged from purchasing goods by the fact that they cannot inspect them beforehand. Leisure activities and cultural items (i.e., books, CDs, and tickets for museums and theaters) are the only goods and services for which e‐commerce is used more in isolated areas. Finally, e‐banking bears no relationship to city size. In choosing a bank, non‐urban customers give more importance to personal acquaintance than do urban clients, partly because bank account holders in remote areas are more likely to have taken out a loan from their bank.     

Spatial Effects in Website Adoption by Firms in European Regions

The purpose of this paper is to provide empirical evidence on the neighboring effects of Internet adoption as measured by the percentage of firms with their own website in the European regions. This is the first study that explicitly analyzes the role played by spatial effects to explain website adoption for the European case. A set of instruments and techniques commonly used in the spatial econometrics framework is employed to test the hypothesis that proximity matters when explaining Internet adoption by firms. Results show that firms in physically adjacent regions register a similar degree of Internet adoption, confirming the presence in this context of positive spatial dependence. Nevertheless, the spatial effects detected are mainly constrained by national borders. Gross domestic product (GDP) per capita, population density, sectoral composition, and education are positively related to geographic distribution of Internet adoption in the enlarged European Union. In addition, regional disparities in Internet adoption were found to be less important than territorial inequalities in GDP per capita.     

Health Record Management System in Visual Electroencephalograph

Visual Electroencephalograph (VEEG) is a new type of digital, information electroencephalograph. As an important part of Visual Electroencephalograph, Health Record Management System(HRMS)is integrant to store electroencephalographic data plentifully, show and edit their waveforms, analyze the data on line or off line. By the most popular and steady Relational-Database technology, ADO Application Programming Interface (API) and Visual C++ programming tool, the system has the friendly interactive interface and the functions of adding, updating, deleting, recalling, counting health record information, etc. Integrated with other parts of VEEG, HRMS ameliorates traditional EEG and overcomes some disadvantages of it such as discommodious to record, difficult to read and hard to get useful information. This paper introduces main functions, structure design and components of Health Record Management System.     

Internet Telerobotics and Its Applications

According to a new trend of telerobot control, some key techniues are researched to solve the Internet telerobotics , such as distributed intelligent computation on the Internet, human-computer interface,and Internet-robot interface etc.The current development status of the Internet telerobotics is reviewed. Based on the new directions of the network software development, the authors discuss that the middleware technique CORBA plays an important role in solving the problems of the Internet telerobotics,and it is an effective way to use Java language to control the telerobot and improve its system performance. The application perspective of the Internet telerobotics is investigated.It is indicated that the development trend of the telerobot control is a human-centred collaboration mechanism of mutual reinforce and coordination in human-machine intelligent.     

物联网在中国现代农业中的应用

近几年来物联网技术受到了人们的广泛关注,笔者介绍了物联网的概念、历史与发展现状,以及物联网在中国农业中的初期应用。分析了物联网研究中的关键技术,包括RFID技术、传感器网络以及智能技术等。将物联网技术应用到农业生产和科研中是现代农业依托新型信息化应用的一大进步,可以改变粗放的农业经营管理方式,提高动植物疫情疫病防控能力,确保农产品质量安全,从而引领现代农业的发展,是物联网与农业领域的一次结合,对现代农业具有一定参考意义。     

GPS Information Obtaining in uClinux Embed System

Data receiving system of GPS system based on Linux was completed. The embedded MCF5272 system, M12 and G18 modules were used in the application based on uClinux. Taken MCF5272 as core, satellite position data were obtained through GPS(Global Positing System)module M12,and uClinux operation system was used in the system for controlling. By G18 module, the GPS data can be transmitted to wireless mobile network linked to Internet and received by remote server, which had been linked to Internet also. The constitution of embedded system is gived and the principle of GPS is introduced. The soft for GPS receiving is realized in uClinux system with C language, and the test data are gived in the end. The resolution of the system is that latitude and longitude: 1 milliarcsecond, height: 0.01 m, velocity: 0. 01 m/s.     

基于ASP.NET的粮库虫害诊断专家系统

采用B／S／S三层体系建立系统，分层产生式规则更接近于人的思维，有效地表达了粮库虫害领域的知识；知识库与推理机分离使得维护知识更加快捷；自动生成界面简约、方便，易于操作；系统通过ASP．NET发布在网上，可以进行远程操作。     

Resolvent and Application of Policy Control for QoS

With the rapid increase of the Internet user and widely application of Web,the current network technology is facing great challenge. More and more multimedia operations occupy plenty of bandwidth,and result in the network congestion. Therefore,people begin to use QoS to utilize the bandwidth effectively,and ensure the transport of the emergent operation data. The paper introduces the protocols and basic components of QoS,then expatiates the conception and the basic principles of policy control QoS, moreover,emphasizes the structure model of policy control QoS and how it runs. At last,it introduces the transport process of data packets under the control of policies in a policy control QoS system,and how to make the policies in the real world.     

Internet development and the spatial optimization of regional productivity: Evidence from China

The rapid development of the Internet had a profound influence on the spatial distribution of economic output activities. On the basis of theoretical analysis, this study takes China's regions as research samples and construct a spatial econometric model to empirically analyze the impact of Internet development on regional productivity. The analysis reveals that the distribution of regional productivity in China had significant spatial correlation; regional productivity had positive spatial externalities; Internet development had significant promotion effects and positive spatial spillover effects to regional productivity, but the effects are heterogeneous in different subregions. The subregion analysis shows that the optimization effect of the Internet on regional productivity exhibits heterogeneity in different subregions. The threshold effect analysis reveals the increasing marginal effect of Internet development on regional productivity, and economic development and human capital supply are important factors restricting this marginal effect. Altogether, this study provides useful references on the positive effects of the Internet on regional productivity in the spatial dimension, and suggests that the policy makers can optimize the spatial distribution of regional productivity by promoting Internet access in various regions and narrowing the digital divide among regions.     

“Bad Neighborhood” and Internet Adoption in Poor Countries: What is behind the Persistent Digital Gap?

The paper investigates the determinants of Internet adoption in poor countries, focusing on the role of macro‐geographic location (neighborhood). It is argued that neighboring countries are interconnected by various kinds of spillovers, including knowledge spillovers as well as spillovers of norms and attitudes that affect individual adoption behavior. The empirical findings support the view that Internet adoption is affected by adoption rates in neighboring countries, even when controlling for a wide range of covariates. Addressing potential endogeneity concerns using an instrumental variable approach moreover suggests these relationships to be causal. The findings imply that international policies to support Internet adoption in poor countries might be more effective if they target groups of neighboring countries rather than single countries in order to better exploit spillovers between neighboring countries.     

On the Negative Effects of Internet

This paper outlines the development of Internet in the international and domestic situations, and then discusses the negative effects , the problem of the information-safety and crime brought in by the Internet . The paper also brings forward the safe-defence measures that should take for the well development of Internet.