Numerical simulation on volume effect of rock specimens under uniaxial compression 单轴压缩下岩石材料体积效应的数值模拟
The volume effect principle of transformer oil is introduced . its application to minipulse transformer is presented 摘要介绍了变压器油的体积效应理论及其在小型脉冲变压器中的应用。
We used seven spheres in a body - size phantom to compare the performance with mr based pvc and a model optimization approach developed by chen , ch 本实验中乃是利用七个小球放在一个大圆柱体假体里来与两个传统的部分体积效应修正方法做比较。
In order to make a more accurate calculation , we must take higher order effects into account , such as breit interaction , qed correction , and finite nuclear effects 为了进一步进行更加精确的计算,需要附加各种修正( breit相互作用、 qed修正以及原子核的有限体积效应) 。