考虑束-离子通道边界上等离子体电子可能发生的扰动，导出了TM模本征方程的理论式。
Considering the disturbance of the plasma electrons at the beam-ion channel boundary, the eigen-equation of TM mode has been derived.
研究了束传播算法(BPM)中简单透明边界条件(STBC)和完全透明边界条件(CTBC)两种边界处理算法对计算结果精度的影响。
It studied simple transparent boundary condition (STBC) and complete transparent boundary condition (CTBC) used in beam propagation method (BPM) and their effects on calculation accuracy.
对51例房间隔缺损（ASD）患者术前进行彩色多普勒速度图（CDV）和彩色多普勒速度能量图（CCD）检查，对房水平分流的方向、分流束的边界连续性及彩色充填进行观察对比分析。
To exlore the dignostic validation of CCD on atrium level shunt and compare it with CDV, 51 patients of atrial septal defect( ASD) received CDV and CCD examination before operation.
用边界元方法，给出了水声发射换能器共形阵各阵元的单元指向性以及基阵的自然波束指向性和束控波束指向性。
The radiation directivity of a complicated conformal array of underwater acoustic transducers is presented based on the boundary element method.
用边界元方法，给出了水声发射换能器共形阵各阵元的单元指向性以及基阵的自然波束指向性和束控波束指向性。
The radiation directivity of a complicated conformal array of underwater acoustic transducers is presented based on the boundary element method.
应用推荐