The study is imitating subulate tool penterite armor fabric by method of test for puncture of paperboard and corrugated fiberboard , and to ascertain the laver of armor fabric for absorb energy and arrestment , and any difference angle to compare the rank of defying ball , for understanding the sharp to the rank of annor fabric defy penterite energy , and penterite deep , the lose energy relation of sharp 摘要本研究是以冲孔强度试验机测试,仿真尖锥利器攻击穿刺防弹衣,且对于防弹衣层数间的阻抗作用及能量吸收的情形,并对各种不同角度的抗弹织物叠层排列作相互比较,进而?解尖锥对防弹衣的抗穿透层数之能量及穿透深度、锥度之能量耗损之间关系。
The optical characteristics of metal silver film used as the reflective mirror of microcavity are calculated by characteristic matrix method and it is shown that the thickness of metal mirror affects not only the reflectivity but also the penetration depth and thus the cavity mode . this conclusion is confirmed by experiment 通过特征矩阵法计算了金属薄膜在光学微腔中的性质，得到了金属膜厚度不仅影响腔的品质因子，而且随金属膜厚度增加，由反射相移引起的等效穿透深度增加的结果，并在实验上进行了验证。
The strict solution of the eddy current distribution inside a conductor cylindrical boundary surface for quasi - state - state is obtained by derivation of maxwell ’ s equations ; meanwhile , the approximate solution of the eddy current and electromagnetic field in the condition of the low - frequency or the high - frequency are obtained . furthermore the penetration depth of the skin effect is achieved 五、讨论了似稳条件下导体圆柱面内的涡电流分布的规律。我们采用圆柱界面条件下获得的趋肤效应的穿透深度与采用平面条件下获得的趋肤效应的穿透深度相一致,我们的研究可视为对传统教材相关论述的有益补充。
This article briefly explains the basic principle of coherent jet technology , and contrasts the characteristics of coherent jet with supersonic jet , accordingly the coherent jet technology has lower decay , longer jet distance and less absence of dimple etc , to form into a greater depth of penetration for any stand - off distance and ameliorate the effect of mixing round for liquid 摘要简述了集束射流技术的基本情况，与传统超音速射流的特性进行了对比，从而看出集束射流具有发散小、喷射距离远和喷溅少等特点，可以形成较大的穿透深度，改善了对钢液的搅拌效果。
