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语言是科学文化进步的先锋
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作者 丁一 《中国科技翻译》 CSSCI 1999年第4期40-41,共2页
本文阐明由于科学文化的进步,与国外接触频繁,从海外舶来的新名词日益增多,尽管是专业术语,也应该使其适应已经延续了五千年文明的现有的语言环境来命名,不赞成构筑只为少数人使用的特定的语言环境。
关键词 语言环境 电子邮件 全球网 同轴电网 文档数据库 信息检索软件
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Design and implementation of ethernet passive electronic network over coax
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作者 黄晶 Liu Deming 《High Technology Letters》 EI CAS 2013年第3期290-294,共5页
To increase the limit of ethernet over coax (EoC) technology in the bidirectional reform of the hybrid fiber coaxial (HFC) network, an ethernet passive electronic network (EPEN) system based on Coax is proposed ... To increase the limit of ethernet over coax (EoC) technology in the bidirectional reform of the hybrid fiber coaxial (HFC) network, an ethernet passive electronic network (EPEN) system based on Coax is proposed and experimentally demonstrated in this paper. The proposed EPEN exploits the existing capabilities of the MAC layer in the ethernet passive optical network (EPON) for reduction of cost of the HFC network. As the MPCP (multi-point control protocol) is introduced in the EPEN, bandwidth control and higher efficiency can be achieved. The experimental results exhibit the throughput of system up to 100Mbps, which meet the requirements of HFC network. To improve the performance of EPEN, frequency division multiplexing (FDM) can be used for further increase of the throughput and more hardware processing modules in the future. can be implemented to enhance the capacity 展开更多
关键词 ethernet over coax EoC ethernet passive electronic network EPEN) ethernetpassive optical network (EPON) multi-point control protocol (MPCP)
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