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船舶运维场景识别及数据划分体系浅析
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作者 周天雄 《珠江水运》 2022年第11期100-103,共4页
本文对船舶运维场景进行初步的定义和识别并确认了各场景中的数据主体,以此为基础进一步分析和总结出了一套对船舶数据进行横向分类和纵向分级的划分理论体系,以向船舶数据传输的安全保障工作提供支撑。
关键词 船舶运维 海上信息传输 信息数据保护 信息分级分类
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Regional Economic Types and Development Strategy of Small Towns in Suburb Beijing
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作者 Han Fei Cai Jianming Liu Junping 《Chinese Journal of Population,Resources and Environment》 2010年第2期75-82,共8页
The purpose of this article is to classify the regional economic types and development dynamics of small towns in suburb Beijing by applying the classification methods developed by Nelson's method and Location Quo... The purpose of this article is to classify the regional economic types and development dynamics of small towns in suburb Beijing by applying the classification methods developed by Nelson's method and Location Quotient method into 183 small towns in Beijing.Four types of small towns are thus identified,including urban agriculture dominated towns,manufacturing dominated towns,service industry dominated towns and comprehensive type towns with balanced economic development.Within the environment of geographical information system,the spatial distribution pattern of four types of small towns with their evolution trend is analyzed.The results indicate that four types of small towns have obvious'core-periphery'spatial structure but with different functional orientations and evolution mechanisms.Based on this,the different development strategies for each type of small towns are summarized,providing a scientific reference for the differentiating planning and development strategies of these small towns. 展开更多
关键词 SUBURBS small towns regional economic types development strategy BEIJING
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