ICT and Sustainable Mobility: From Impacts to Policy

ABSTRACT The question “Will using Information and Communication Technology (ICT) systems enable a more sustainable mobility?” is answered through analyzing current ICT policy in the EU and the United States of America (USA), through developing a conceptual model to structure the expected direct and indirect effects of ICT systems on mobility, and through building models for three selected ICT systems to estimate their quantitative effects on mobility. Based on the models, ICT systems seem to have limited mobility reduction potential (in terms of CO₂ emissions and kilometer savings). On the short term, because of efficiency gains, ICT systems have a positive impact. In the long term, better quality of mobility will attract new demand and this will again result in an increase of travel. For policymakers this implies that ICT systems in the short run can make mobility more efficient. In the long run, to prevent the more efficient mobility from attracting new traffic, the implementation of any ICT system should be accompanied by a stronger pricing policy.     

缓释长效多功能新药剂对甘蔗螟虫和绵蚜防控效果评价

为筛选防控甘蔗螟虫和绵蚜的缓释长效低毒低风险多功能配方新药剂及精准高效施药技术,选用10%杀虫单.噻虫嗪颗粒剂和1%Bt.噻虫胺颗粒剂根施进行田间药效试验。田间试验结果表明,10%杀虫单.噻虫嗪颗粒剂和1%Bt.噻虫胺颗粒剂对甘蔗螟虫和绵蚜均具有良好的防控效果,是防控甘蔗螟虫和绵蚜理想的缓释长效低毒低风险多功能配方新药剂,与其他药剂交替使用,可延缓害虫抗药性产生和发展。两种药剂田间使用最适宜用量均为45 kg/hm2,可在1-7月结合新植蔗下种、宿根蔗管理或大培土,按每公顷用药量45kg与每公顷施肥量1200-1800 kg混合均匀一次性撒施于蔗沟、蔗桩或蔗株基部覆土或全膜盖膜,对螟害枯心苗的防效可达79.2%以上,对甘蔗绵蚜的防效可达98.8%以上;甘蔗实测产量和糖分分别较对照增加41555 kg/hm2和6.5%以上。缓释长效强内吸性多功能新药剂与底肥追肥混匀一次性根施,施用方便,精准高效,省工省时,环境友好,值得在蔗区大面积推广应用。     

Simulation of Motion Control System Based on the 2nd Generation Scanning for X-Ray Industrial Computerized Tomography(X-CT)

The second-generation control system of scanning motion of industrial computerized tomography(ICT) systems is that the scanning motion is divided into translation and rotation. This paper only focuses on rotation. After acquiring the transferred function of the rotation based on the features of the system, we simulate the system to get the parameters of the motion in the field of time and frequency with Matlab, and modify it to some extent in order to change its capability of response for getting the best control.     

High Speed Multi-channel Data Acquisition System and Storage System Based on PCI Bus

The paper first introduces principium and the developing actuality of data acquisition system about ICT.The authors then discuss PCI protocol and structure,function and work principle of the PCI bus controller S5933.Base on these,with the circuit design tools such as MAX+PLUSII,PROTEL 99SE and VHDL,etc.,the two types of high speed multi-channel data acquisition system based on PCI bus have been designed by using PASS-THRU channel and FIFO channel of S5933.     

基于阿里云的无土栽培营养液信息采集系统

为实现对无土栽培营养液中影响作物生长的各重要因子的精准测量与控制,笔者研制了一种基于阿里云的温室无土栽培营养液信息监测系统。该系统主要包括采集模块、控制模块、云平台和应用终端4个部分。首先利用传感器实时测量营养液的电导率、酸碱度、液温、液位和含氧量等影响因子信息,然后进行数据整合处理,并通过无线通信模块传送至控制模块及阿里云平台进行数据保存,最后通过Web端实时监控营养液各信息变化。研究结果表明,该系统能够实时准确监测营养液的信息,合理反馈供给作物所需营养液信息,达到功能设计要求,而且系统成本低,具有一定的实用价值。     

都市多功能农业研究综述

随着城市化进程的不断加快,资源与环境等问题的日益凸显,都市多功能农业发展越来越受到关注。在回顾相关文献的基础上,通过系统梳理国内外都市多功能农业理论与实践的相关研究,进一步厘清研究思路,提出观点：都市多功能农业各功能的充分发挥离不开科技的强力支撑以及政策的保障,今后应加大相应技术集成与支撑政策研究,以充分发挥都市多功能农业在新农村建设中的作用。     

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。     

The Appreciative System of Urban ICT Policies: An Analysis of Perceptions of Urban Policy Makers

ABSTRACT Information and Communication Technology (ICT) has become an important tool to promote a variety of public goals and policies. In the past years much attention has been given to the expected social benefits from deploying ICTs in different urban fields (transportation, education, public participation in planning, etc.) and to its potential to mitigate various current or emerging urban problems. The growing importance of ICTs in daily life, business activities, and governance prompts the need to consider ICTs more explicitly in urban policies. Alongside the expectation that the private sector will play a major role in the ICT field, the expected benefits from ICTs also encourage urban authorities to formulate proper public ICT policies. Against this background, various intriguing research questions arise. What are the urban policy‐makers’ expectations about ICTs? And how do they assess the future implications of ICTs for their city? A thorough analysis of these questions will provide a better understanding of the extent to which urban authorities are willing to invest in and to adopt a dedicated ICT policy. This study is focusing on the way urban decision‐makers perceive the opportunities of ICT policy. After a sketch of recent development and policy issues, a conceptual model is developed to map out the driving forces of urban ICT policies in cities in Europe. Next, by highlighting the importance of understanding the decision‐maker's “black box,” three crucial variables are identified within this box. In the remaining part of the paper these three variables will be operationalized by using a large survey comprising more than 200 European cities. By means of statistical multivariate methods (i.e., factor and cluster analysis), the decision‐makers were able to be characterized according to the way they perceive their city (the concept of “imaginable city”), their opinion about ICT, and the way they assess the relevance of ICT policies to their city. Next, a solid explanatory framework will be offered by using a log‐linear logit analysis to test the relationships between these three aspects.     

农产品远程价格信息采集和发布系统的研究

利用TC35与低功耗单片机结合设计便携式手持数据采集终端,采用手持信息采集终端收集信息,通过GSM方式传送到数据中心,数据中心负责处理和发布信息,实现了农产品远程价格信息的采集和发布,用户可通过上网或手机短信进行价格查询。系统实时性好,可靠性高,克服了以往信息采集发布的缺点,能够有效的进行农产品价格信息方面的信息传递工作及数据统计。详细阐述了手机模块TC35中SMS功能的工作原理、便携式手持终端的硬件设计与软件实现。经示范应用,系统达到了设计目标。     

嵌入式GIS技术在农业上的应用

嵌入式 GIS是 GIS发展的方向之一, 嵌入式 GIS在农业上的应用促进了农业信息技术的大众化应用。为了发挥嵌入式 GIS在农业上的积极作用, 介绍了嵌入式 GIS的技术体系、 农业嵌入式 GIS的发展现状和农业嵌入式 GIS应用开发的技术路线, 以 Android平台的嵌入式施肥系统展示农业嵌入 GIS应用的功能。嵌入式 GIS随着移动终端和操作系统的更新及用户需求更多样化、 简单化, 在农业信息化方面有重要作用, 实现农业的现代化和可持续发展。     

基于无线传感器网络的鱼塘监控系统

本文设计了基于无线传感器网络的鱼塘实时在线智能监控系统,有效解决了传统的鱼塘观测手段存在的问题,例如：费时费力、步骤复杂、成本高等。该系统在鱼塘的监测区域中利用无线传感器节点,测得该区域中的温度和溶氧量,并通过Zigbee网络将数据传输到终端控制系统,控制系统作出判断并发出报警信号和控制增氧机的状态。系统中以MSP430和XBEE模块为核心芯片,能够实时在线监测鱼塘中的一些参数,例如温度、溶氧量等。同时该系统还可以进一步扩展使用GPRS或3G网络实现远程监控。     

多功能复合材料对土壤物理性质的影响

通过模拟实际植树造林操作方法,进行了不同浓度梯度多功能复合材料对土壤物理性质影响的研究。结果表明：多功能复合材料可以降低土壤的pH值和土壤容重,提高土壤总孔隙度,提高土壤阳离子交换容量。随着施用多功能复合材料浓度的增大,土壤中＞0.25mm的团聚体含量增加,当保水剂用量为50g时,＞0.25mm的团聚体含量比对照提高了约8.91%~12.50%。     

Discussion about MIS Development Model

This paper analyzes and summarizes the main problem in developing Management Information System (MIS). On this basis, it presents a new model of MIS development. In this model, the authors emphasize and discuss the importance and conformation of independent system application platform. The final purpose of this model lies in making the users to maintain database, reconstruct application system and develop new application conveniently.     

Design and Realize the Short Message Service System

Along with the widely using of mobile telephone, the SMS (Short Message Service) has achieved more and more approbation of consumers. Besides the point-point application of SMS among mobile phones, a new application of SMS between information system and mobile phones is developed quickly now, and it is a new way to achieve information conveniently and duly for users. In this paper, we design a software based on SMS to solve some problems which exists in the communication among employees. We also give out the system's functions, key technology and application in the enterprises. This system has some important value in theory and application for building a digital enterprise.     

新型抗旱多功能种衣剂在棉花上的应用效果试验

通过棉花的室内和室外试验,研究了新型抗旱多功能种衣剂在棉花上的应用效果。试验结果表明,新型抗旱多功能种衣剂能明显提高棉花的出苗率和促进棉株的生长发育。     

基于密切值法的林农复合经营模式的综合评价研究——以江苏省泗阳县为例

针对林农复合经营系统的多功能性,从生态功能、经济功能、社会功能3个方面构建了林农复合经营的综合评价指标体系,并且运用密切值法对不同复合模式进行评价。最后,对江苏省泗阳县的林农复合经营的综合效益进行实证研究,运用建立的评价指标体系和密切值法选出较优模式,以期为当地发展林农复合经营提供理论依据和方向指导。结果表明：无论从生态功能、经济功能、社会功能来看还是从综合效益来看,泗阳县的杨农复合经营模式都优于纯杨树的种植模式。其中,杨树-蒲公英复合经营模式和杨树-蘑菇复合经营模式在各个功能方面较优于其他模式,当地农民可以根据实际需要进行选择,以充分利用林地资源,增加经济收入。     

Implementation of Three-dimensional Terrain Based on MultiGen Creator

This paper mainly analyzes methods and technology of three-dimensional terrain with terrain module in MultiGen Creator2.6.According to character of real-time,accuracy and reality in terrain modeling,it gives the application scheme based on the terrain of space launch site.An new source data of terrain(grid map) conversion method is proposed.The authors sum up paste texture with contour strip and also put forward an method of combining Polymesh/Irregular Mesh algorithm with sampling mesh predigestion algorithm.Projection method and ellipsoid,setting LOD are chosen,an effective 3D terrain application project is given.This paper generates a three-dimensional terrain of space launch site with perfect visual effect,and the terrain has been applied to the three-dimensional simulation system.     

A New Monte Carlo Method Based on State Analysis

A new Monte Carlo Method for system reliability evaluation is proposed in this paper. The repeated sampling of system states with relatively great probabilities is avoided in the simulation,thus the sampling efficiency is significantly improved. Besides,the negative correlations used in different trials can further reduce the estimated varinaces. The sparse matrix technique is employed to reduce the memory requirement and to save the computer time. Comparative studies show that the method proposed is of great value and the application to the IEEE reliability test system (power system) is successful.     

Computer Aided Decision-Making System of Power System Reliability Evaluation Based on Object-oriented

The reliability is an important component part of research fields in power system. This paper presents an application of object oriented programming to develop reliability evaluation system of electric networks. A new approach to reliability evaluation and graph expression is proposed, and a computer aided decision making system of electric network reliability evaluation using Visual C++ 5.0 under Windows95 environment is developed. The system can provide reliability data for power system operation and plan, which is the foundation for operation and decision making. It has the characteristics of better expansibility, convenient usage, user friendly interfaces and so on.