期刊文献+
共找到2篇文章
< 1 >
每页显示 20 50 100
象素图数学基础变换方法探讨
1
作者 杨玉彬 李淑霞 《测绘科技通讯》 1997年第4期18-21,共4页
本文针对象素图数学基础变换问题,提出了一种间接变换思路,给出了具体的变换才法,包括整块变换和分块变换及拼接等问题,并作了相关的实验。
关键词 数学基础变换 屏蔽数字化 象素比例尺 象素图
下载PDF
Simple Emission Model of Supersonic Molecular Beam
2
作者 ZHENG Yinjia SHI Le SUN Ping 《Southwestern Institute of Physics Annual Report》 2004年第1期36-39,共4页
Recently some modes of supersonic molecular beam injection (SMBI)have been put forward. Among them there are electrostatic “double layer”-shielding, simple collective and optimized numerical models to explain the ... Recently some modes of supersonic molecular beam injection (SMBI)have been put forward. Among them there are electrostatic “double layer”-shielding, simple collective and optimized numerical models to explain the experiment phenomenon. The penetrated depth A and particle deposition were calculated theoretically. About 1/7 in- cident thermal electron flux was amputated and, A increased seven times. The previous simulation is not enough for the SMBI fueling mechanism research. Hence, further investigations, both in experiment and in theory should be developed. The phenomena of line emission due to supersonic molecular beam (SMB) are of particular importance. 展开更多
关键词 Supersonic molecular beam Penetration dept Simple emission model
下载PDF
上一页 1 下一页 到第
使用帮助 返回顶部