1) momentum flow density
动量流密度
2) Flux density
流量密度
1.
For minimum γ-ray data,there is no correlation between the γ-ray and radio flux density;For maximum and average γ-ray data,there are correlations .
主要结果如下:对于最小值而言,γ射线辐射与射电辐射流量密度之间没有相关性存在;对于最大值和平均值而言,它们的流量密度之间有较好的线性相关性;γ射线辐射与射电辐射谱指数之间也有相关性存在。
3) four-dimensional momentum current density tensor
四维动量流密度张量
1.
The four-dimensional momentum current density tensor of electromagnetic field is defined.
定义了电磁场的四维动量流密度张量,并将电磁能量转化和守恒定律及动量转化和守恒定律写成了四维协变形式。
4) moment current density tensor
电磁场动量流密度张量
5) momentum density
动量密度
1.
This paper deduces from the energy consenvation formula r 2+n 2cosi 2n 1cosi 1=1(R+T=1) that light reflected and refracted on the dielectric surface observes the principle of the conservation of momentum, which comfirms that the common formula of electromagnetic wave s momentum density is =(×)=εu×=1v 2 but not =1C 2(×)=1C 2.
利用动量守恒原理推导出电磁波在介质界面上反射、折射时的能量守恒式r2+n2cosi2n1cosi1=1(即R+T=1),进而证明电磁波动量密度的普适公式是g=(D×B)=εuE×H=1v2S,而不是g=1C2(E×H)=1C2S。
6) density of momentum
能量流密度
补充资料:非密度制约因素(见密度制约因素)
非密度制约因素(见密度制约因素)
l焦非密度制约因素见生态因素、密度制约后
说明:补充资料仅用于学习参考,请勿用于其它任何用途。
参考词条