期刊文献+
共找到2篇文章
< 1 >
每页显示 20 50 100
平磨非磁件的机械装夹
1
作者 王稚芪 《机械工人(冷加工)》 1991年第5期50-52,共3页
我们在平磨非磁工件时,采用机械夹紧,化难为易,效果较好。几种方法如下: 一、利用工件的倒角来装夹 装夹前选一厚度及外形尺寸合适的钢板,在平磨上精磨两平面后作为底板,然后将工件放上,用沉头螺钉4(图1),压紧圈2将工件压紧。应注意压紧... 我们在平磨非磁工件时,采用机械夹紧,化难为易,效果较好。几种方法如下: 一、利用工件的倒角来装夹 装夹前选一厚度及外形尺寸合适的钢板,在平磨上精磨两平面后作为底板,然后将工件放上,用沉头螺钉4(图1),压紧圈2将工件压紧。应注意压紧圈2要清根或切环形槽。而且被磨工件应高出压紧圈2,其高度差h=0.5~1mm,压紧圈2与底板在装夹后的间隙b=0.1~0.2mm。 展开更多
关键词 非磁件 耐平磨 机械装夹
下载PDF
Organic-ferromagnetic hetero-structures with spin transport properties and fundamental physical effects 被引量:1
2
作者 LIU DongPing HAN XiuFeng 《Science China(Physics,Mechanics & Astronomy)》 SCIE EI CAS 2013年第1期151-165,共15页
Organic spintronics refers to control spin dependent transport through organic materials.In the last two decades,extraordinary development has been achieved for organic-spintronics.A series of theoretical and experime... Organic spintronics refers to control spin dependent transport through organic materials.In the last two decades,extraordinary development has been achieved for organic-spintronics.A series of theoretical and experimental studies have been done to reveal the mechanisms of spin dependent transport properties.The theoretical analysis is based on the non-equilibrium Green's function formalism provides a mathematical framework for solving the transmission coefficients in the Landauer formula from atomistic first principles without any phenomenological parameters.In this article,we provide a brief theoretical review on organic spintronics devices and device physics therein. 展开更多
关键词 organic SPINTRONICS spin dependent transport MAGNETORESISTANCE nonequilibrium green's function
原文传递
上一页 1 下一页 到第
使用帮助 返回顶部