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Research on TD-LTE Key Techniques
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《China Communications》 SCIE CSCD 2008年第3期85-85,共1页
TD-LTE is the evolution system of TD-SCDMA system. Early in 2004 3GPP put forward the "Long Term Evolution" project based on the OFDM/FDMA core physical techniques with high qualities. While China Mobile and... TD-LTE is the evolution system of TD-SCDMA system. Early in 2004 3GPP put forward the "Long Term Evolution" project based on the OFDM/FDMA core physical techniques with high qualities. While China Mobile and several operators and vendors, both domestic and foreign, 展开更多
关键词 LTE TD research on TD-LTE Key techniques
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超微量持久性有机污染物质检测中的污染防治技术 被引量:2
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作者 陈左生 李伟 +4 位作者 黄萍 王关玉 李常清 刘耕耘 邹南智 《分析测试学报》 CAS CSCD 北大核心 2004年第z1期155-158,共4页
  我国持久性有机污染物质的研究刚刚起步,对持久性有机污染物质的分析检测技术尚不完善,特别在其研究环境上的尚无相关法规和对策.本文结合国外研究经验以及北京大学二噁英实验室建设的经验和管理实例,介绍了超痕量级二噁英定性定量...   我国持久性有机污染物质的研究刚刚起步,对持久性有机污染物质的分析检测技术尚不完善,特别在其研究环境上的尚无相关法规和对策.本文结合国外研究经验以及北京大学二噁英实验室建设的经验和管理实例,介绍了超痕量级二噁英定性定量的环境控制技术及其实施技术,给有机质谱分析研究的同行们介绍超痕量级分析带来的问题及其对策.…… 展开更多
关键词 HRGC - HRMS Pollution and control for laboratory for dioxins research technique and knowhow
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Tianjin Automotive Test Center & National Passenger Car Quality Supervision and Inspection Center——A State Testing and Universality Techniques Research Base in China
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《中国汽车(英文版)》 2001年第7期22-23,共2页
Tianiin Automotive Test Center has a test capability as well as a capability of conducting universality techniques research. With fixed assets of around RMB 76.44 million yuan and an architectural area of 11,200 sqm, ... Tianiin Automotive Test Center has a test capability as well as a capability of conducting universality techniques research. With fixed assets of around RMB 76.44 million yuan and an architectural area of 11,200 sqm, test labs mainly include: auto emission test lab, full-scale vehicle crash test lab, auto safety test lab, auto lighting and view field test lab, engine test lab, 展开更多
关键词 test A State Testing and Universality techniques research Base in China National Passenger Car Quality Supervision and Inspection Center Tianjin Automotive Test Center Test
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