On-line with the people in line: Internet development and flexible control of the net in Vietnam     

Björn Surborg 《Geoforum》2008,39(1):344-357

Information and communication technologies in general and the internet in particular are often praised as a means for enhancing democracy and providing new spaces for the development of an egalitarian civil society, in which all members of society can participate equally. However, there are various possibilities to monitor, manipulate and control cyberspace, of which the internet is an essential part. This paper examines the efforts of the Vietnamese government and the Vietnamese Communist Party to control cyberspace as well as the physical spaces through which the virtual world is accessed. There are attempts to control the internet in a similar fashion as the traditional print and broadcast media. Any such control is neither absolute nor without effect. Instead control is exercised in a highly flexible manner, allowing for some officially unwanted or illegal activity to occur. At the same time authorities can apply internet regulations, if it serves their political objectives as for example strengthening the Party’s official monopoly on political power. The paper traces the development of the internet as well as the regulatory environment surrounding it and analyses the inconsistent enforcement of regulations. The analysis is framed in the theoretical works of Michel Foucault and Jürgen Habermas.  相似文献   

The Internet, mobile phone and space-time constraints   总被引：2，自引：0，他引：2  

Tim Schwanen  Mei-Po Kwan   《Geoforum》2008,39(3):1362-1377

While the implications of information and communication technologies (ICTs) for daily travel and activities have been studied extensively, there is only scant attention paid to the relations between ICTs and space-time constraints. This study therefore explores the extent to which the Internet and mobile phone increase the spatial and temporal flexibility of everyday activities through a review of the literature and empirical research with data from Columbus (Ohio, USA) and Utrecht (The Netherlands). The analysis suggests that the implications of the Internet and mobile phone are complex and dependent on the type of activity, persons involved, technologies and socio-physical context in which they are embedded. Various regularities can, however, be detected. For the study participants, the Internet and mobile phone relax temporal constraints to a stronger degree than they enhance spatial flexibility. There are also space-time constraints that seem to persist or have come about because of ICT adoption. Finally, it appears that the Internet and mobile phone at best consolidate differences between men and women in the space-time constraints associated with everyday activities.  相似文献   

基于物联网三层架构的地下工程测量机器人远程变形监测系统     

吴战广  张献州  张瑞  杨龙杰 《测绘工程》2017,26(2)

针对地下工程变形监测特点,在物联网三层架构技术和测量机器人技术的基础上,以C#编程语言和SQL sever数据库为开发平台,借助GeoCOM开发包,通过远程控制测量机器人对地下工程进行自动化变形监测工作。在物联网三层技术架构自动化变形监测系统应用服务层中,介绍了提高数据处理精度的实时差分技术原理和围岩净空收敛分析方法。成功地将物联网技术应用在变形监测领域,保证了地下工程的安全服务;而这一系统设计思想更可为同类工程安全监测提供参考。  相似文献   

基于JPEG2000标准的遥感影像在Web GIS上的应用     

王宇飞  杨崇俊  郝鹏威  蒋晓瑜 《遥感学报》2001,5(4):388-395

基于Internet/Intranet的开放式地理信息系统Web GIS，为人类共享遥感影像这一人类共同的资源，提供了快捷灵活的手段。尤其是1998年以来，在“数字地球”的设想下，遥感影像数据无疑会在未来“数字地球”建设中占有重要地位。但是，海量遥感影像数据和网络有限带宽这对矛盾严重地影响着遥感影像的充分应用。国际标准化组织（ISO）和图像专家联合小组（Joint Photographic Experts Group,JPEG)于1997年提出的JPEG2000图像标准，将会很好地解决这一矛盾。该文将论述基于该标准的遥感影像，在Web GIS上的应用实现及结构。  相似文献   

地震速报与互联网络   总被引：1，自引：1，他引：0  

赵仲和 《地震地磁观测与研究》1997,18(5):26-32

考虑到我国遥测地震台网承担的主要任务,提出了利用互联网络进一步发挥遥测地震台网地震速报作用的构想。其基本点是：在合理规划和统一的信息递约定基础上,利用互联网络技术和设施辅以必要的专用软件,实现遥测台网数据信息的快速通报、汇集、组织与发布,从而更好地为防震减灾特别是大地震应急服务。文中提出宜区分“下式速报”和“非正式地震信息通告”。  相似文献   

基于移动互联网的短临降水预报服务短语算法设计与应用     

郑伟才  邓闯  魏晨  李建 《气象科技》2017,45(6):1129-1135

随着信息技术的快速发展和气象现代化的快速推进,民众对气象服务要求越来越高,气象服务产品的种类、品质也需要与时俱进。本文从用户生活的实际需求出发,基于雷达反演降水实况融合数据的0~1h短临降水预报,设计0~1h短临降水预报的算法,不同降水趋势下服务短语生成,开发了0~1h短临降水预报服务短语应用系统,并集成到智慧气象APP和浙江降水发布系统手机客户端软件开展服务,有助于提升气象服务质量。  相似文献   

3S技术下滑坡危险性区划及监测     

程乙峰  刘志辉 《测绘科学》2016,41(8):95-100

针对传统知识驱动型滑坡灾害研究多依赖专业人员经验,具有主观性和不确定性的问题,该文提出了基于数据驱动滑坡致灾因子评价及危险性区划的方法。采用证据权模型,较好地平衡了滑坡危险性区划中准确性与高效性之间的矛盾,实现了较为精确的滑坡易发性及危险性区划;利用感知层、网络层、应用层的物联网技术,实现了高危险区滑坡点在线预警监测。3S技术支持下的滑坡危险性区划及监测实验结果表明:所用模型及监测技术不仅可以准确评价滑坡致灾因子权重及危险性区划,还能够精准、高效实现滑坡点实时监控预警。  相似文献   

Development of internet-based ship technical information management system     

Soon-Sup Lee  Jong-Kap Lee  Beom-Jin Park  Dong-Kon Lee  Soo-Young Kim  Kyung-Ho Lee 《Ocean Engineering》2006,33(13):1814-1828

In this paper, internet-based ship technical information management system has been developed as a means to accumulate, manage, share and utilize various distributed applications and information used for ship design and building. The information managed in the system is documents from the whole life cycle including concept design, basic design, detailed design, construction, operation and maintenance. In addition, using the developed system, integrated system framework is also proposed to integrate applications and database in concurrent engineering environment.  相似文献   

Developing a Web-based flood forecasting system for reservoirs with J2EE / Développement sur Internet avec J2EE d’un système de prévision de crue pour barrages     

《水文科学杂志》2013,58(6)

Abstract

Abstract A flood forecasting system is a crucial component in flood mitigation. For certain important large-scale reservoirs, cooperation and communication among federal, state, and local stakeholders are required when heavy flood events are encountered. The Web-based environment is emerging as a very important development and delivery platform for real-time flood forecasting systems. In this paper, the findings of a case study are presented of the development of a Web-based flood forecasting system for reservoirs using Java 2 platform Enterprise Edition (J2EE). J2EE of Sun Microsystems is chosen as the development solution for the Web-based flood forecasting system, Weblogic 6.0 of BEA as the container provider, and JBuilder 7.0 of Borland as the development tool. One of the key objectives in this project is to establish a collaborative platform for flood forecasting via Web technology in order to render hydrological models and data available to stakeholders and experts involved and thus offer an efficient medium for transferring and sharing information, knowledge and experiences among them. Compared with general Web-based query systems and traditional flood forecasting systems, the Web-based flood forecasting system is more focused on the on-line analysis of model-based forecasting of floods and provides opportunities for improving the transfer of information and knowledge from the hydrological scientists and managers to decision makers. Finally, a prototype system is used to demonstrate the system application.  相似文献   

土地整治项目科技化管理的探索研究          下载免费PDF全文

王燕鹏  巩玉虎  赵跃伦  张黎芹 《山东国土资源》2018,34(3)

目前,国内土地整治项目管理工作已趋入正规化,各项制度建设较为完善,但普遍存在项目规划设计调查不充分,实施难以有效监管,设计目标完成情况难以落实,档案管理难以规范等不足之处。为转变传统的土地整治低效管理模式,提高管理效率,实现项目管理模式的专业化、精准化、高效化。基于"互联网+"与地理信息系统技术,创新土地整治项目管理模式,在国内首次开发了包含移动巡查填报、移动端采集监管、土地综合项目巡查监管展示和土地综合项目动态监管四大功能模块的土地综合项目动态监管系统,突破了办公环境的限制,实时传输项目的信息,接受社会的广泛监督,减少人工作业条件下的人为干扰因素,科学考核土地整治工作,实现对土地整治项目的高效监管,促进土地资源保护和合理利用。  相似文献