您要查找的是不是：
- Distorted wave front 畸变波前
- At each interface the spreading wave front is made discontinuous. 在每一分界面上扩展的波前出现间断。
- It starts with zero and grows to a maximum slightly behind the wave front. 它从零值开始，并在稍后于波阵面处增长到最大值。
- The peripherality of this reaction was also verified by changing the radial parameter limit in distorted wave Born approximation(DWBA) calculations. 通过改变DWUCK4程序中径向积分的下限,验证了该反应的周边性。
- The He 2+ +H Impact Ionization process is investigated using a continuum distorted wave method with the eikonal initial_state(CDW_EIS) approximation. 利用初态程函近似的连续扭曲波方法研究了He2+离子与H原子的碰撞电离过程.
- The modulation index can be increased by using distorted wave forms that contain only triplen (multiples of three) harmonics. 通过使用只含有三次谐波的波形作为载波可以提高这个调节指数。
- The radii are proportional to the time which has elapsed since the wave front occupied the position wi. 半径与波前占据wi位置以来能经过的时间成正比。
- This assumption is reasonably justified in the early stages, when the wave front is not far from ground zero. 这种假定在初期阶段波阵面离地面零点不远时是相当合理的。
- If a refraction or a reflecting body is irreqular, the wave front undergoes a deformation. 如果折射体或反射体是不规则的，波前即产生变形。
- The cross section of inner-shell excitation followed by auto-ionization and total ionization cross section of lithium-like ions by electron impact have been calculated by using a distorted wave Born exchange approximation. 利用扭曲波玻恩交换近似,计算了类锂离子的电子碰撞激发-自电离截面和总电离截面,与紧耦合计算及实验数据比较,得到了比较令人满意的结果。
- The planes of the wave front and the reflecting surface are also normal to the plane of the figure. 波阵面的诸平面与反射面都与图面垂直。
- The direct process for (n,p) or (p,n) reaction is treated as a knock-out reaction and calculated by conventional DWBA (distorted wave Born approximation) theory in the zero-range approximation. 将(n,p)或(p,n)反应的直接过程看成是一种敲出反应并用通常的在零程近似下的DWBA理论进行计算。
- If a refraction or a reflecting body is irregular, the wave front undergoes a deformation. 如果折射体或反射体是不规则的,波前即产生变形。
- The electron-impact ionization cross sections for H-like ions He,C,Ne,Si,Ca and F e were calculated with the distorted wave Born exchange approximation. The results were compared with the S.M. 在扭曲波库仑玻恩交换似近下用编制的计算程序计算了类氢离子He，C，Ne，Si，Ca，Fe的电子碰撞电离截面，并将结果与Younger的扭曲波结果作了比较。
- When the incident wave front reaches this point, the reflected wave is still some distance away. 当入射冲击波波阵面到达这一点,反射波离开它还有一段距离。
- In this paper, the scattering amplitude is expanded by two eikonal wave functions which propagate along the incoming and outgoing directions respectively to replace the distorted wave functions in DWBA. 本文以沿入射方向和沿出射方向传播的两个程函波函数取代DWBA的扭曲波,将散射振幅展开。
- High-pressure acting on samples were produced by shock wave front converging in metallic ball. 在该装置上 ,利用冲击波由金属球体表面向中心汇聚形成的高压 ,对样品进行了冲击处理 ;
- By using R matrix method total and single differential Cross sections for electron impact ionisation of atom Na at 20,50,and 100 eV incident energies in the distorted wave and the Coulomb Born approximations. 使用R?矩阵方法， 在扭曲波和库仑?玻恩近似下计算了入射电子能量为20 eV、50eV 及100 eV 原子Na 的电子碰撞电离截面， 并详细给出了入射电子能量为50 eV 时的能量微分截面及分波能量微分截面。
- Successive wave fronts in this case form a series of concentric spheres. 相继波前形成了一系列的同心球面。
- All elements are radiating in phase, and the resultant wave front is perpendicular to the axis of the element array. 所有单元发射相位一致，合成的波前垂直于单元阵列轴线。
