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Global Development of Mobile Value Added Services
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作者 Li Shan (China Academy of Telecommunications Research of Mll, Beijing 100083, China) 《ZTE Communications》 2005年第4期2-5,共4页
With the increasing demand for VAS from the subscribers, mobile operators are making efforts to create more services to promote the continuous development of the non-voice service application. The following three mobi... With the increasing demand for VAS from the subscribers, mobile operators are making efforts to create more services to promote the continuous development of the non-voice service application. The following three mobile VASes are becoming the development focus of operators. 展开更多
关键词 In Global development of Mobile value Added Services VAS UMTS SMS
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A critical analysis of environmental evolutionin the loess-plateau area
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作者 Lu Zhongchen(Research Center for Eco - Environmental Sciences. Chinese Academy of Sciences , Beijing 100085, China)Yuan Baoyin(Institute of Geology, Chinese Academy of Bciences . Beijing 100029 . China) 《Journal of Environmental Sciences》 SCIE EI CAS CSCD 1995年第3期283-288,共6页
Acriticalanalysisofenvironmentalevolutionintheloess-plateauareaLuZhongchen(ResearchCenterforEco-Environmenta... Acriticalanalysisofenvironmentalevolutionintheloess-plateauareaLuZhongchen(ResearchCenterforEco-EnvironmentalSciences.Chinese... 展开更多
关键词 critical analysis geomorphologic developing stage: erosion integrated value.
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The Contemporary Development of Mankind and Value Choices in the 21st Century
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《Social Sciences in China》 1999年第3期79-81,190,共4页
关键词 The Contemporary development of Mankind and value Choices in the 21st Century
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