1) Relativistic transformation
相对论变换
1.
A relativistic transformation of generalized coordinates is discussed and it is found that the first law of thermodynamics and the equation of state of an ideal gas are invariant with respect to the relativistic transformation of generalized coordinates, so that the existence of relativistic transformation of generalized coordinates is reasonable.
讨论了一个涉及热力学的广义坐标的相对论变换 ,发现热力学第一定律和理想气体状态方程对广义坐标的相对论变换具有不变性 ,表明广义坐标的相对论变换有其存在的理由 。
2.
The phase velocity and group velocity of electromagnetic waves in moving media are derived by relativistic transformation of electromagnetic waves propagation vectors between two inertial frames and their relation and difference are discussed.
利用不同惯性系之间电磁波传播矢量的相对论变换,推导了电磁波在运动媒质中传播的相速和群速,并讨论了它们之间的联系和区
3.
Meanwhile,another way is given to deduce the relation of relativistic transformation of media polarizationmagnetization field vector quantity P and M.
并给出另一种推导介质极化——磁化场矢量P 和M 的相对论变换关系的方法。
2) relative transformation theory
相对论变换理论
1.
In this paper,with the beginning of the forced situation of the charged particle and using the relative transformation theory,the charged particle movement condition has been systematically in the steady permanent orthogonal electromagnetic field.
从带电粒子的受力情况出发,利用相对论变换理论系统地研究了稳恒正交电磁场中带电粒子运动的状态,并由初始条件得到粒子运动轨迹的三种状态,即普通摆线(它相当于滚动的轮子边缘上一点轨迹)、内摆线(它相当于滚动的轮子边缘内一点的轨迹)和外摆线,(它相当于滚动的轮子边缘外一点的轨迹)。
3) Relative velocity transformation
相对论速度变换
4) relativistic transform theory of electromagnetic field
相对论电磁变换
5) relativistic transformation relation
相对论变换关系
1.
The electromagnetic field of a linear electric quadrupole moving uniformly along the axis of the quadrupole has been calculated with the relativistic transformation relation.
利用相对论变换关系计算了沿轴线方向匀速运动的线性电四极子的电磁场。
6) relativistic transformation and invariant
相对论变换及不变量
补充资料:Radon变换和逆Radon变换
Radon变换和逆Radon变换
X线物理学术语。CT重建图像成像的主要理论依据之一。1917年澳大利亚数学家Radon首先论证了通过物体某一平面的投影重建物体该平面两维空间分布的公式。他的公式要求获得沿该平面所有可能的直线的全部投影(无限集合)。所获得的投影集称为Radon变换。由Radon变换进行重建图像的操作则称为逆Radon变换。Radon变换和逆Radon变换对CT成像的意义在于,它从数学原理上证实了通过物体某一断层层面“沿直线衰减分布的投影”重建该层面单位体积,即体素的线性衰减系数两维空间分布的可能性。
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参考词条