The influence of the factors,including the area density,the impact velocity of the fragment and the impact model,on the ballistic performance was studied.
提出了一种基于神经网络的弹道试验数据处理方法,建立了UHMWPE纤维复合材料防弹性能分析的BP神经网络模型,并基于模型研究靶板的面密度、弹片的入射速度、冲击方式等因素对材料防弹性能的影响。
The relation between the mass efficiency and the impact velocity, and the relation between the thickness efficiency and the impact velocity were studied.
利用弹道靶系统,采用DOP方法,针对入射速度在1。
Numerical Simulations of Flat Plate Film Cooling Using Respectively Different Injection Angles;
不同入射角度平板气膜冷却的数值模拟
According to the jack pipe saddle with specially structure mode,although determining the incidence angle of probe head and selecting suitable wafer dimension and probe head frequency,it realizes wonderfully the defect location of corner weld of jack pipe saddle by ultrasonic detection.
插接管座焊缝的质量直接影响机组的安全运行,针对特定结构型式的插接管座,通过确定探头的入射角度和选择合适的晶片尺寸及探头频率,用超声波检测成功实现了插接管座角焊缝缺陷的定位。
The forbidden bandgap of one-dimensional photonic crystal under different incidence angles were studied in this paper.
研究了一维光子晶体在不同角度入射下的禁带宽度和位置的变化,发现随着入射角度从正入射的0°沿光子晶体的法线逆时针或顺时针增加时,禁带的宽度变得越来越宽,禁带的中心频率也向高频率处移动,角度增加幅度相同时,禁带宽度的增加的程度也是明显地成倍增加;考虑到折射率对禁带的影响,得到折射率在0和1之间以及大于1以后禁带宽度分别表现出衰减和加剧两种不同的结构,对于以上影响光子晶体禁带的两种因素分别给出了二维和三维的关系图像。
A kinetic Monte Carlo (KMC) model was implemented to approach the relationship between the incident angle and the thin film microstructure for the Ni thin films prepared by physical vapor deposition (PVD).
采用动态蒙特卡罗(kinetic Monte Carlo,简称KMC)方法研究物理气相沉积(physical vapor deposition,简称PVD)制备Ni薄膜过程中入射角度对薄膜微观结构的影响。
The result shows that Si_(60) molecule is inelastic,and the incident angle plays an important role in the collisions.
利用普适的紧束缚分子动力学模拟研究在不同入射条件下Si60团簇与Si(111)面的碰撞机理,结果表明Si60分子是"非弹性分子",入射角度对碰撞结果有重要影响,Si60分子易和Si(111)面发生化学反应,其保持结构特性吸附于Si(111)表面的能量域值在50～80eV之间。
Laser melting treatment with different incident angles was carried out by using HL-1500 CO2 laser processing machine on 40Cr steel.
采用HL-1500型CO2激光加工机,以不同入射角度对40Cr钢进行激光熔凝处理,利用扫描电镜、X射线衍射仪、显微硬度计、恒电位仪及磨粒磨损试验机等对熔凝层进行显微组织观察和性能测试。
Effect of incident laser beam angle varying on cube corner retro-reflector measurement accuracty
激光光束入射角度变化对角锥棱镜测量精度的影响
Effect of Incident Angle on Laser Melted Layer Microstructure and Properties
入射角度对激光熔凝层组织及性能的影响
Numerical study on effects of jet angles on film-cooling effectiveness
入射角度对气膜冷却效果影响的数值研究
The incident angle dependences of the cross sections for single event upset and single event latchup are presented.
获得了单粒子翻转和单粒子闭锁截面与入射角度的依赖关系.
Study and Analysis on the Effect of Different Incidence Angles and Material Property for Intruding Process in Cold Spraying
粒子入射角度及材料特性对冷喷涂侵切过程的影响分析与研究
Research on Forbidden Bandgap of One-dimensional Photonic Crystal Changed under Different Incidence Angles
一维光子晶体禁带在不同入射角度下变化的研究
The angle of incidence equals the angle of reflection.
入射角等于反射角。
Low-angle winter sunlight penetration can give rise to glare.
冬季小入射角阳光的透射可以增加室内亮度。
Azimuth, in Ellipsometry- The angle measured between the plane of incidence and the major axis of the ellipse.
椭圆方位角-测量入射面和主晶轴之间的角度。
A Model about Energy Attenuation for Sunlight Incident upon CCD Sensors in Large Angle
CCD太阳敏感器大角度入射光能衰减模型
the smallest angle of incidence for which light is totally reflected.
入射光全部被反射的最小的入射角。
The Determination of Thickness and Refractive Index of Magnetic Garnet Films by Multiple Angle Laser Ellipsometry
激光椭偏仪多角入射法测定磁性石榴石薄膜的厚度和折射率
x ray small angle scattering
x 射线小角度散射法
Scattering angle is the angle between the scattered and incident directions.
散射角是散射方向与入射方向之间的夹角。
Finally the relation curve among the polarization degree and the refractive index and layer number of the medium is drawn when the light is incident the polarizer at Brewster angle.
绘制了以布儒斯特角入射时透射光偏振度与介质折射率及介质层数的关系曲线。
For example, the angle between the incidence direction and scattering direction of the injected particle could be a good parameter.
例如，入射粒子的入射方向和散布方向之间的角度可能是一个好参数。
We see that a physically possible wave pattern is an SV-wave incident at an angle.
我们看到，一种物理上可能的波式样是一个以下列角度入射的SV波。
The immediate cause of low temperature in the polar regions is the low solar elevation and solar radiation input.
极区低温的直接原因是低的太阳高度角以及低的太阳辐射输入。