期刊文献+
共找到2篇文章
< 1 >
每页显示 20 50 100
圆锥滚子轴承筐形保持架压靠模的改进设计
1
作者 蒙延芬 吴红庆 《哈尔滨轴承》 2011年第2期41-42,共2页
针对圆锥滚子轴承筐形保持架在压靠时出现的压伤和梁塌腰现象,分析了产生原因,采取了改进设计,避免了此现象的发生。
关键词 圆锥滚子轴承 压靠模 保持架扩张 保持架收缩
下载PDF
Aniline Induced Domino Ring Contraction Process on the Rim of an Open-Cage Fullerene with Carbonyl, Imino and lactone Moieties
2
作者 Shuming Liu Liangbing Gan 《Chinese Journal of Chemistry》 SCIE CAS CSCD 2014年第8期819-821,共3页
Functional groups on the rim of open-cage fullerenes usually exhibit different reactivity from those in classical organic molecules due to the unique spherical structure of fullerenes.The present work shows a sequence... Functional groups on the rim of open-cage fullerenes usually exhibit different reactivity from those in classical organic molecules due to the unique spherical structure of fullerenes.The present work shows a sequence of lactone opening,imino hydrolysis,aminal formation and imine formation processes during the reaction of aniline with the open-cage compound 1 with functional groups including lactone on the rim of the orifice.Single crystal X-ray diffraction analysis confirmed the structure of the product. 展开更多
关键词 FULLERENE open-cage fullerene ring contraction molecular container
原文传递
上一页 1 下一页 到第
使用帮助 返回顶部