高校图书馆知识服务现状研究--以西南地区“985”高校为例

在“985工程”以及“双一流”建设等高等教育国家战略影响下,优化高校图书馆资源体系建设、深化其知识服务成为图书馆界重要的研究方向。采取文献调研和网络调查相结合的方法,以我国西南地区“985”高校图书馆为研究对象,对我国西南地区“985”高校图书馆知识服务的形式和现状进行了系统调查,提出了适合西南地区高校图书馆知识服务的提升策略与方法。

High efficient multipacket decoding approach for network coding in wireless networks

To improve the performance of transmission by reducing the number of transmission and network overhead of wireless single-hop networks, this paper presents a high efficient multipacket decoding approach for network coding （EMDNC） in wireless networks according to the idea of encoding packets which cannot be decoded and are stored in buffer by receiving nodes, the lost packets can be recovered from these encoded packets. Compared with the network coding wireless broadcasting retransmission （NCWBR）, EMDNC can improve the efficiency of decoding and reduce the number of retransmission and transmission delay. Simulation results reveal that EMDNC can effectively reduce the number of retransmission and network overhead.