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  • 关于我国广电有线网络发展的思考

    Subjects: Digital Publishing >> New Media submitted time 2023-10-08 Cooperative journals: 《中国传媒科技》

    Abstract:2018 年我国广电有线网络行业,积极推进“智慧广电”战略,力图拓展转型发展空间。但是,在产业生态格局快速 演变和市场竞争空前激烈的环境下,广电有线网络的行业基本面和运营发展环境仍未出现根本性好转。本文回顾总结了广电 有线网络行业及技术应用的最新进展,分析了当前的竞争态势及潜在发展契机,提出了加速推进“全国一网”和资源共享、 加快 4K 产业布局、进行 5G 技术应用的战略选择、研究并解决对行业发展有重大影响的业务和技术问题、推动面向智慧广 电的数字化转型以及培养广电系统专有的网络安全人才等发展思路与对策。

  • Urban Sustainable Development Evaluation with Big Earth Data: Data, Indicators, and Methods

    Subjects: Other Disciplines >> Synthetic discipline submitted time 2023-03-28 Cooperative journals: 《中国科学院院刊》

    Abstract: The sustainable development of cities is the key to achieving the United Nations 2030 Sustainable Development Goals (SDGs). There have been numbers of studies on urban sustainable development assessment, but the existing indicators are usually based on traditional statistical data, which makes urban sustainable development assessment limited in global city assessment and comparison. Big Earth Data can overcome the problems of traditional data statistics such as inconsistent statistical caliber, incomplete statistical information, and difficulty in obtaining data. With its macroscopic, dynamic, and diverse advantages, it can provide new assistance for urban sustainable development assessment. Based on the research on sustainable development of cities worldwide, this study sorts out the SDG 11 and other goals related to urban sustainability, and discusses the possibility of Big Earth Data, such as remote sensing data and the Internet big data, in the urban sustainable development evaluation. This study hopes to provide a scientific reference for the sustainable development of cities. The sustainability indicators using the Big Earth Data has realized the integration and utilization of multi-source information, which will help to achieve more quantitative, real-time, and detailed evaluation for urban sustainability.