数值计算

Experiments that use single-pulse laser to ablate small steel ball in atmosphere were conducted.

采用单脉冲激光进行了大气环境下激光烧蚀小钢珠实验，得到其推进效应参数，发现并分析了钢珠在不同放置位置时不同的物理现象；为了得到一系列定量实验数据，采用自行研制的激光冲量靶仪进行了单脉冲激光烧蚀推进效应实验测试，得到了不同环境条件、不同靶材料的激光推进效应参数，并与国外的实验数据以及数值计算结果进行了比较。

It is found that traveling waves with either lower frequency or higher frequency can both eliminate the anti-spiral waves, while only the target waves with lower absolute value of frequency can eliminate the anti-spiral waves.

数值计算表明，对于行波，无论是低频行波还是高频行波，都可以成功地消除系统中的反螺旋波；而对于靶波，只有低频靶波才可以消除反螺旋波。

Determination of laser absorptivity of metal by numerical calculation technique and trial-and-error method .

用数值计算技术和试错法确定金属材料表面对激光的吸收率。

To design of high performance MRIgradient and RF coils is always the hot topic in MRI academical and industry field and lots ofmethods have been proposed to design the coils,which needs certain numerical calculation.

高性能MRI梯度和射频线圈的设计一直是MRI学术界和工业界的研究热点问题，已经有大量线圈设计方法提出，其中都涉及到一定的数值计算。

The common equation of the evolution of spectrum caused by selfphase modulationis presented, which is the convolution of action spectrum and chirped spectrum caused by selfphase modulation when carrier frequency is single.

给出了由自相位调制引起的频谱演变的普遍表示，即单载频脉冲的SPM引起的啁啾频谱与光源的频谱的卷积，通过数值计算给出从相干脉冲到非相干脉冲的频谱演变规律。

To determining the topological relation between cells is important in the course of computing aerodynamic force for projectiles,rockets and missiles.

建立网格拓扑关系是弹箭气动力数值计算过程中关键的一步。

High-speed train, train wind, numerical calculation, aerodynamic force

高速列车，列车风，数值计算，气动作用力

The numerical calculation method of infrared radiant intensity of exhaust system of turbine engine without afterburning was studied.

研究了非加力涡轮发动机排气系统红外辐射强度的数值计算方法。

The two results are very close and in the static state they show good agrement with the actual situation of the slope, provig high accuracy of the present model test and numerical calculation.

两者规律一致、结果相近且在静态情况下与现场实际相符，证明本文模型试验与数值计算的正确性。

Use numeric calculative method, serve as loss of constant false alarm and false alarm aiguille respectively measure algorithm to be below much target and clutter brim environment the standard of function actor bad.

采用数值计算的方法，将恒虚警损失及虚警尖峰分别作为衡量算法在多目标和杂波边缘环境下性能优劣的标准。

For a big chunk of credit-card losses; the number of filings (and thus charge-off rates) would be rising again, whether

年美国个人破产法的一个改动使得破产登记急速下降，而后引起了信用卡大规模的亏损。

Eph. 4:23 And that you be renewed in the spirit of your mind

弗四23 而在你们心思的灵里得以更新