科技期刊的办刊水平能否反映所属学科或所属研究机构的科技创新水平,是检验该刊办刊方针正确与否的重要依据。《武警医学》作为武警部队创刊最早的国家级科技核心期刊,经过20
Radiation belt electron dropouts indicate electron flux decay to the background level during geomagnetic storms, which is commonly attributed to the effects of
The hourly data of the vertical Z and the horizontal H components of 37 ground–based DC–ULF geomagnetic stations are examined during 20 April–12 May 2008. On
在“历史图书热”的今天,与文学史、战争史等社会科学类的史书相比,科学技术史方面的书籍到目前为止,其数量、品种显得太少,还有许多空白.且不说古代、近代科技史的研究势在