近日，教育部对全国中小学生学籍信息管理系统建设截止到2013年9月底的进展情况进行了通报（《关于全国中小学生学籍信息管理系统截止2013年9月底建设进展情况的通报》）。通报显示，32个省份已有28个基本完成了全国系统的安装，其中河南、广东因运行维护工作到位，系统运行十分稳定而受到表扬。而河北、黑龙江、宁夏、重庆等4省(市)因软硬件及网络原因，系... [详细]
Fe3O4/C composites are synthesized by ball milling nano-sized Fe2O3 powder with acetylene black (AB) in different ratios followed by a carbothermal reduction at 600 C for ...[详细]
The combination of multiple active components and engineering of reasonable structures are effective strategies to prepare high-performance electrochemical electrodes. Here...[详细]
In the originally published work, there were errors in the curves (a), (e) and (f) of the Raman spectra in Figure S10 due to an operation error during the plotting process....[详细]
